methohexital profile

Methohexital: An intravenous anesthetic with a short duration of action that may be used for induction of anesthesia. [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

methohexital : A barbiturate, the structure of which is that of barbituric acid substituted at N-1 by a methyl group and at C-5 by allyl and 1-methylpent-2-ynyl groups. [Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

ID Source	ID
PubMed CID	9034
CHEMBL ID	7413
CHEBI ID	102216
SCHEMBL ID	80729
MeSH ID	M0013589

Synonym
1-methyl-5-(1-methylpent-2-yn-1-yl)-5-prop-2-en-1-ylpyrimidine-2,4,6(1h,3h,5h)-trione
.alpha.-dl-1-methyl-5-allyl-5-(1'-methylpentyn-2-yl)barbituric acid
barbituric acid, 5-allyl-1-methyl-5-(1-methyl-2-pentynyl)-, (.+/-.)-
methohexital (usp/inn)
D04985
151-83-7
C07844
methohexital
(+/-)-5-allyl-1-methyl-5-(1-methyl-2-pentynyl)barbituric acid
alpha-dl-1-methyl-5-allyl-5-(1'-methylpentyn-2-yl)barbituric acid
methohexitone
5-allyl-1-methyl-5-(1-methyl-2-pentynyl)-2,4,6(1h,3h,5h)-pyrimidinetrione
DB00474
5-allyl-1-methyl-5-(1-methyl-pent-2-ynyl)-pyrimidine-2,4,6-trione
5-allyl-5-(3-hexyn-2-yl)-1-methylbarbituric acid
18652-93-2
2,4,6(1h,3h,5h)-pyrimidinetrione, 1-methyl-5-(1-methyl-2-pentynyl)-5-(2-propenyl)-, (+/-)-
5-hex-3-yn-2-yl-1-methyl-5-prop-2-enyl-1,3-diazinane-2,4,6-trione
methohexital civ
CHEMBL7413
CHEBI:102216 ,
(+-)-5-allyl-1-methyl-5-(1-methyl-2-pentynyl)barbituric acid
methohexitalum
metohexital
1-methyl-5-(1-methylpent-2-yn-1-yl)-5-(prop-2-en-1-yl)pyrimidine-2,4,6(1h,3h,5h)-trione
A809228
compound 25398
metoesital [dcit]
methodrexitone
compound 22451
enallynymall
e5b8nd5ipe ,
methohexital [usp:inn:ban]
2,4,6(1h,3h,5h)-pyrimidinetrione, 1-methyl-5-(1-methyl-2-pentynyl)-5-(2-propenyl)-, (+-)-
einecs 205-798-6
metohexital [inn-spanish]
methohexitalum [inn-latin]
unii-e5b8nd5ipe
enallynymalum
barbituric acid, 5-allyl-1-methyl-5-(1-methyl-2-pentynyl)-
metoesital
5-allyl-5-(hex-3-yn-2-yl)-1-methylpyrimidine-2,4,6(1h,3h,5h)-trione
EPITOPE ID:117125
gtpl7233
5-(hex-3-yn-2-yl)-6-hydroxy-3-methyl-5-(prop-2-en-1-yl)-2,3,4,5-tetrahydropyrimidine-2,4-dione
methohexital [who-dd]
methohexital [vandf]
methohexital [mart.]
methohexital civ [usp-rs]
methohexital [inn]
methohexital [mi]
methohexital [usp monograph]
SCHEMBL80729
1-methyl-5-(1-methyl-2-pentynyl)-5-allyl-barbituric acid
NZXKDOXHBHYTKP-UHFFFAOYSA-N
2,4,6(1h,3h,5h)-pyrimidinetrione, 1-methyl-5-(1-methyl-2-pentynyl)-5-(2-propenyl)-, (.+/-.)-
2,4,6(1h,3h,5h)-pyrimidinetrione, 1-methyl-5-(1-methyl-2-pentynyl)-5-(2-propenyl)-
DTXSID1023287 ,
5-(hex-3-yn-2-yl)-1-methyl-5-(prop-2-en-1-yl)-1,3-diazinane-2,4,6-trione
methohexital 1.0 mg/ml in methanol
dl-1-methyl-5-(1-methyl-2-pentynyl)-5-(2-propenyl)-2,4,6(1h,3h,5h)-pyrimidinetrione
Q851813
BM164664
2,4(3h,5h)-pyrimidinedione, 6-hydroxy-3-methyl-5-(1-methyl-2-pentyn-1-yl)-5-(2-propen-1-yl)-
methohexital (usp monograph)
methohexital (usp:inn:ban)
metohexital (inn-spanish)
methohexital (mart.)
methohexitalum (inn-latin)
dtxcid903287
n01af01
n05ca15
methohexital civ (usp-rs)

Excerpt	Reference	Relevance
"Methohexital is a safe and effective option for procedural sedation for musculoskeletal procedures in the ED when compared with ketamine and propofol."	( A Safety Comparison of Single-Agent Methohexital, Ketamine, or Propofol for Musculoskeletal Procedural Sedation in the Emergency Department. Kruggel, S; Mishler, A; Sullivan, L, 2022)	2.44
"Methohexital is a short-acting barbiturate used for procedural sedation in the emergency department (ED). "	( Methohexital-Induced Seizure in a Patient Undergoing Conscious Sedation. Bisanz, B; Clark, RF; Parathasarathy, V; Trumm, N; Willeford, A, 2020)	3.44
"Methohexital is a common anesthetic agent used for electroconvulsive therapy. "	( Methohexital-induced seizures during electroconvulsive therapy. Rasmussen, KG; Swintak, CC; Vande Voort, JL; Wall, CA, 2013)	3.28
"Methohexital would seem to be a useful adjunct drug for the performance of these procedures because of its well-known attributes (eg, rapid induction and recovery, brief duration, and minimal hemodynamic changes)."	( Methohexital for orthopaedic procedures in the emergency department. Bono, JV; Reilly, KM; Rella, JG; Zink, BJ, 1993)	2.45
"Methohexital is an ultrashort-acting barbiturate widely used in dentistry because of its rapid onset, predictable effects, and short duration of action. "	( Methohexital: a practical review for outpatient dental anesthesia. Martone, CH; Nagelhout, J; Wolf, SM, )	3.02
"Methohexital is a safe and reliable method of activating epileptogenic foci during acute ECoG recordings and can decrease the time for ECoG recordings during surgery."	( Methohexital activation of epileptogenic foci during acute electrocorticography. Atkinson, RA; Hermann, BP; Richey, ET; Wyler, AR, )	2.3
"Methohexital is a useful alternative to thiobarbiturates for short-duration barbiturate anesthesia in Greyhounds."	( Barbiturate anesthesia in greyhound and mixed-breed dogs: comparative cardiopulmonary effects, anesthetic effects, and recovery rates. Muir, WW; Robinson, EP; Sams, RA, 1986)	0.99

Excerpt	Reference	Relevance
"Methohexital has a high efficacy rate for sleep (85%) or sedation (96%), and has a relatively rapid onset."	( A prospective study of rectal methohexital: efficacy and side effects in 648 cases. Audenaert, SM; Montgomery, CL; Sutherland, J; Thompson, DE, 1995)	1.3
"Methohexital has replaced amobarbital during Wada testing at many centers. "	( Language assessment in Wada test: comparison of methohexital and amobarbital. Alexopoulos, AV; Dinner, DS; Kim, H; Kotagal, P; Loddenkemper, T; Lüders, HO; Möddel, G; Schuele, SU, 2009)	2.05
"Methohexital has been used for procedural sedation in the emergency department, but its use for endotracheal intubation in intensive care units has not been studied."	( A comparison of methohexital versus etomidate for endotracheal intubation of critically ill patients. Arroliga, AC; Bauer, SR; Diaz-Guzman, E; Heresi, GA; Mireles-Cabodevila, E, 2010)	2.15
"Methohexital has been demonstrated to be the anexthesia of safety and choice for ECT when compared to diazepam."	( Drug modification of ECT: methohexital and diazepam. II. Allen, RE; Pitts, FN; Summers, WK, 1980)	1.28
"Methohexital has a high efficacy rate for sleep (85%) or sedation (96%), and has a relatively rapid onset."	( A prospective study of rectal methohexital: efficacy and side effects in 648 cases. Audenaert, SM; Montgomery, CL; Sutherland, J; Thompson, DE, 1995)	1.3
"Methohexital and propofol have been shown to be effective agents for continuous intravenous infusion to produce conscious sedation during oral surgical procedures. "	( Comparison of propofol and methohexital continuous infusion techniques for conscious sedation. Buckley, MJ; Herlich, A; Johns, FR; Sandler, NA, 1998)	2.04
"Methohexital has little or no influence on cortisol levels."	( [Changes in expression of lymphocyte surface markers following administration of etomidate, midazolam or methohexital]. Beck, D; Crozier, TA; Kettler, D; Schuff-Werner, P, 1987)	1.21

Excerpt	Reference	Relevance
"Methohexital seemed to inhibit hexokinase activity by solubilizing the mitochondrial bound form."	( [Mechanisms of the protective effect of methohexital on cerebral energy metabolism]. Hanke, J; Krieglstein, J, 1982)	1.25

Excerpt	Reference	Relevance
"Methohexital treatment, mild hypothermia, and mild hypothermia plus methohexital treatment reduced infarct volumes by 32%, 71%, and 66%, respectively, compared with normothermic controls."	( No additional neuroprotection provided by barbiturate-induced burst suppression under mild hypothermic conditions in rats subjected to reversible focal ischemia. Baethmann, A; Schmid-Elsaesser, R; Steiger, HJ; Westermaier, T; Zausinger, S, 2000)	1.03
"Methohexital treatment of the vasopressin-stimulated toad bladder reduced both the osmotic water flow and vasopressin-induced alterations of membrane structure to the same extent."	( Relationship of aggregated intramembranous particles to water permeability in vasopressin-treated toad urinary bladder. Di Scala, VA; Hays, RM; Kachadorian, WA; Levine, SD; Wade, JB, 1977)	0.98

Excerpt	Reference	Relevance
"MTX, when used by trained personnel who adhere to an established protocol, appears to be a safe and effective drug in selected ED patients."	( The efficacy and safety of methohexital in the emergency department. Darfler, K; Reilly, KM; Salluzzo, RF; Zink, BJ, 1991)	0.58
"Our experience indicates that MHX, with appropriate monitoring as described here, is a safe and effective agent for use in pediatric oncology outpatient sedation programs."	( Brief unconscious sedation for painful pediatric oncology procedures. Intravenous methohexital with appropriate monitoring is safe and effective. Axtell, RA; Fahner, JB; Freyer, DR; Hackbarth, RM; Hassan, NE; Kopec, JS; Sanfilippo, DJ; Schwanda, AE; Waskerwitz, MJ, 1993)	0.51
" Pharmacological strategies used in outpatient dental settings must be both safe and effective."	( Comparing efficacy and safety of four intravenous sedation regimens in dental outpatients. Beirne, OR; Dionne, RA; Gonty, A; Moore, PA; Yagiela, JA; Zuniga, J, 2001)	0.31
"These data provide evidence that the drugs and doses evaluated resulted in therapeutic benefit to dental outpatients, with minimal incidence of potentially serious adverse effects."	( Comparing efficacy and safety of four intravenous sedation regimens in dental outpatients. Beirne, OR; Dionne, RA; Gonty, A; Moore, PA; Yagiela, JA; Zuniga, J, 2001)	0.31
"5 million adverse drug reaction (ADR) reports for 8620 drugs/biologics that are listed for 1191 Coding Symbols for Thesaurus of Adverse Reaction (COSTAR) terms of adverse effects."	( Assessment of the health effects of chemicals in humans: II. Construction of an adverse effects database for QSAR modeling. Benz, RD; Contrera, JF; Kruhlak, NL; Matthews, EJ; Weaver, JL, 2004)	0.32
" Safety was examined by reviewing the occurrence of minor and major adverse effects during esophagogastroduodenoscopy sedation."	( The safety of propofol sedation for elective nonintubated esophagogastroduodenoscopy in pediatric patients. Cloney, DL; Cornelius, K; Davis, AT; Fitzgerald, RK; Hackbarth, RM; Hassan, NE; Kopec, JS; McCullough, A; Ndika, AN; Rajasekaran, S; Sanfilippo, D, 2014)	0.4
" These data suggest that propofol is a safe and effective agent for esophagogastroduodenoscopy sedation."	( The safety of propofol sedation for elective nonintubated esophagogastroduodenoscopy in pediatric patients. Cloney, DL; Cornelius, K; Davis, AT; Fitzgerald, RK; Hackbarth, RM; Hassan, NE; Kopec, JS; McCullough, A; Ndika, AN; Rajasekaran, S; Sanfilippo, D, 2014)	0.4
" Methohexital, a barbiturate, is less frequently used due to concerns for adverse events associated with this drug class."	( A Safety Comparison of Single-Agent Methohexital, Ketamine, or Propofol for Musculoskeletal Procedural Sedation in the Emergency Department. Kruggel, S; Mishler, A; Sullivan, L, 2022)	1.91
" Overall adverse events occurred in 34."	( A Safety Comparison of Single-Agent Methohexital, Ketamine, or Propofol for Musculoskeletal Procedural Sedation in the Emergency Department. Kruggel, S; Mishler, A; Sullivan, L, 2022)	1
"Methohexital is a safe and effective option for procedural sedation for musculoskeletal procedures in the ED when compared with ketamine and propofol."	( A Safety Comparison of Single-Agent Methohexital, Ketamine, or Propofol for Musculoskeletal Procedural Sedation in the Emergency Department. Kruggel, S; Mishler, A; Sullivan, L, 2022)	2.44
"Due to longer procedure duration and an unfavorable side effect profile, etomidate appears inferior to methohexital as an anesthetic agent in mECT despite longer seizure durations."	( Comparison of etomidate and methohexital as anesthetic agents for continuation and maintenance electroconvulsive therapy: A retrospective analysis of seizure quality and safety. Baldinger-Melich, P; Eder, V; Frey, R; Kress, HG; Michalek-Sauberer, A; Millischer, V; Pramhas, S; Rujescu, D; Wiedermann, I, 2023)	1.42

Excerpt	Reference	Relevance
" The terminal elimination half-life of the drug is relatively short (70-125 min), which is a result of a high metabolic clearance rate (657-999 ml plasma/min)."	( Pharmacokinetics of methohexitone following intravenous infusion in humans. Breimer, DD, 1976)	0.26
"A nonlinear pharmacokinetic model was constructed to describe the body distribution of intravenous anesthetics, using the physiological modeling approach for drug distribution kinetics."	( Nonlinear pharmacokinetic model of intravenous anesthesia. DeAngelis, RJ; Gillis, PP; Wynn, RL, 1976)	0.26
"The pharmacokinetic characteristics of a constant rate methohexitone infusion were studied in young ASA 1 patients undergoing maxillofacial surgery."	( [Pharmacokinetics of methohexital given by constant rate intravenous infusion]. Bally, B; Gavend, M; Payen, JF; Serre-Debeauvais, F; Stieglitz, P; Tranchand, B, 1992)	0.6
" The pharmacokinetic data obtained were compared with those from vascular surgery without cardiopulmonary bypass."	( Pharmacokinetics of methohexital during cardiovascular surgery with cardiopulmonary bypass. Boulieu, R; Ferry, S; Foussadier, A; Lehot, JJ, 1991)	0.6
"The pharmacokinetic profile of methohexital was studied in cirrhotic patients (n = 8), patients undergoing upper abdominal surgery (n = 8) and orthopaedic patients under general anaesthesia (n = 8)."	( Effect of upper abdominal surgery and cirrhosis upon the pharmacokinetics of methohexital. Bertrand, F; Chauvin, M; Duvaldestin, P; Farinotti, R; Karolak, FT; Lebrault, C, 1991)	0.8
" The mean elimination half-life of methohexitone was 193 +/- 75 min; that is, considerably longer than previously reported for children, but in good agreement with findings in adults."	( Pharmacokinetics of i.v. and rectal methohexitone in children. Björkman, S; Corbey, M; Gabrielsson, J; Quaynor, H, 1987)	0.27
" Anesthesia (combined with surgery) and increase in age did not separately affect the kinetics of the drug; however, the elimination half-life was longer in the elderly patients group than in the young non-anesthetized volunteers."	( The pharmacokinetics of methohexital in young and elderly subjects. Chiang, CK; Dhanaraj, J; Ghoneim, MM; Lilburn, JK; Schoenwald, RD, 1985)	0.58
"5 min) was followed by an elimination phase (elimination half-life t 1/2 lambda z; 26."	( Pharmacokinetics of intravenous and intramuscular methohexitone in dogs. Kergueris, MF; Larousse, C; Lasserre, MP; Le Normand, Y; Meignier, M; Pinaud, M; Souron, R, 1984)	0.27
" No significant correlations with temperature were found for other pharmacokinetic parameters."	( Endotoxin-induced fever increases the clearance of methohexitone in rabbits. Björkman, S; Redke, F, 1994)	0.29
" When comparing HCPB and NCPB groups, elimination half-life (T1/2), TBC, volume of distribution (VD), area under the curve (AUC), and mean residence time (MRT) were similar."	( Comparison of the pharmacokinetics of methohexital during cardiac surgery with cardiopulmonary bypass and vascular surgery. Boulieu, R; Chassignolle, J; Clerc, J; Estanove, S; Ferry, S; Foussadier, A; George, M; Lehot, JJ; Villard, J, 1993)	0.56
" Marker dispositions were described by recirculatory pharmacokinetic models based on very frequent early, and less frequent later, arterial blood samples."	( Isoflurane alters the recirculatory pharmacokinetics of physiologic markers. Avram, MJ; Enders-Klein, C; Henthorn, TK; Krejcie, TC; Niemann, CU; Shanks, CA, 2000)	0.31
" The use of ketamine as an anaesthetic agent in rabbits is questionable, while the use of fentanyl in pigs, methohexitone in rats and ketamine in rats and pigs is well supported by the pharmacokinetic data."	( Clearance of fentanyl, alfentanil, methohexitone, thiopentone and ketamine in relation to estimated hepatic blood flow in several animal species: application to prediction of clearance in man. Björkman, S; Redke, F, 2000)	0.31
" The aim of the present experiments was to establish the influence of methohexital on the plasma concentrations and pharmacokinetic parameters of lidocaine in rabbits."	( The influence of methohexital on plasma concentration and pharmacokinetic parameters of lidocaine in rabbits. Orszulak-Michalak, D; Owczarek, J; Wiktorowska-Owczarek, AK, 2004)	0.9
" pharmacokinetic data on 670 drugs representing, to our knowledge, the largest publicly available set of human clinical pharmacokinetic data."	( Trend analysis of a database of intravenous pharmacokinetic parameters in humans for 670 drug compounds. Lombardo, F; Obach, RS; Waters, NJ, 2008)	0.35

Excerpt	Reference	Relevance
" First, propofol infusion was compared to thiopentone combined with midazolam."	( Total intravenous anaesthesia for direct laryngoscopy: propofol infusion compared to thiopentone combined with midazolam and methohexitone infusion. Clausen, TG; Halck, S; Munksgaard, A; Sonne, NM; Valentin, N, 1992)	0.28

Excerpt	Reference	Relevance
" The mean bioavailability of methohexitone administered per rectum was 17%, with a six-fold variation between individuals."	( Pharmacokinetics of i.v. and rectal methohexitone in children. Björkman, S; Corbey, M; Gabrielsson, J; Quaynor, H, 1987)	0.27
" Also there is no evidence as yet, that patients with liver disease and without a collateral portal circulation do have an increased bioavailability of oral high clearance drugs."	( [Drug metabolism in patients with liver disease (author's transl)]. Epping, J; Fuchshofen-Röckel, M; Heusler, H; Richter, E; Zilly, W, 1980)	0.26
" The bioavailability of the rectal gel appears sufficient to provide efficient clinical plasmatic concentrations."	( [Pharmacokinetic and clinical evaluation of rectal hydrophilic gel of methohexital in pediatric surgery]. Benoit, I; Grellet, J; Merlet, JP; Meynat, Y; Michel-Guéroult, P; Saux, MC, )	0.37

Excerpt	Relevance	Reference
"2 x 10(-6) M) displaced the dose-response curve for tetraethylammonium-methohexitone-induced contractures to the right."	( Contractures elicited by tetraethylammonium in avian muscle treated with methohexitone. Elliott, RC, 1979)	0.26
" When Althesin was required in high total dosage (exceeding 150 mu1/kg), the immediate awakening was associated with emotional upset and confusion."	( A study of cumulative effects and recovery from anaesthesia with intermittent doses of althesin. A comparison with methohexitone. Kauste, A, 1976)	0.26
" The etomidate dosage chosen more often gave an immediate satisfactory sleep."	( A comparative study of etomidate and methohexital as induction agents for analgesic anesthesia. Bastenier-Geens, J; Dubois-Primo, J; Genicot, C; Rucquoi, M, 1976)	0.53
"Pentazocine, a systemic analgesic, can be utilized in local analgesic and intravenous techniques to provide better operating conditions in difficult cases, a reduction in the dosage of other agents employed, and a smoother recovery period."	( The value of associating pentazocine with drugs used in accepted intravenous techniques. Armstrong, PJ, 1975)	0.25
" The doses of the anasthetic agents were selected from the dose-response experiments."	( Effect of lithium and rubidium on the sleeping time caused by various intravenous anaesthetics in the mouse. Männistö, PT; Saarnivaara, L, 1976)	0.26
" In all three cases, an increase in the anesthetic (or equivalent medication) dosage prior to ECT prevented the emergence of postictal excitement at subsequent treatments."	( Use of increased anesthetic dose prior to electroconvulsive therapy to prevent postictal excitement. Devanand, DP; Sackeim, HA, 1992)	0.28
" A study form was completed that provided data on dosage and response, indications for use, final diagnosis, hemodynamic and respiratory parameters, and an efficacy survey."	( The efficacy and safety of methohexital in the emergency department. Darfler, K; Reilly, KM; Salluzzo, RF; Zink, BJ, 1991)	0.58
"The authors evaluated the sigmoidal administration of methohexital, the effect of methohexital concentration (1% versus 2%), the effect of dosage (25 mg/kg versus 15 mg/kg) on sleep-success rate, administration - sleep time, recovery time and the effect of aspirating the residual methohexital on recovery time."	( Induction of anesthesia in children following administration of methohexital into the sigmoid colon. Khalil, SN; Marcus, MA; Nuutinen, LS; Rawal, N; Stanley, TH; van Haaren, ER, 1991)	0.77
"In a small clinical trial, a new therapeutic approach was studied, whether naloxone, in high dosage over a prolonged period of time, will attenuate withdrawal symptoms in acute opiate detoxification."	( Continuous naloxone administration suppresses opiate withdrawal symptoms in human opiate addicts during detoxification treatment. Lenz, K; Loimer, N; Presslich, O; Schmid, RW, 1989)	0.28
"The induction dose-response of midazolam was compared with the dose-response of its combination with methohexitone sodium and with that of methohexitone alone."	( Midazolam acts synergistically with methohexitone for induction of anaesthesia. Ben-Shlomo, I; Ezry, J; Finger, J; Fleyshman, G; Tverskoy, M, 1989)	0.28
" When alpha-(+/-)-5-allyl-1-methyl-5-(1-methyl-2-pentinyl) barbituric acid (methohexital) was added to the incubation medium of the neuroblastoma cells, a dose-dependent increase in soluble hexokinase activity was measurable, whereas the glucose-6-phosphate level was decreased at least within a therapeutically relevant dosage range of the anesthetic."	( Effect of methohexital on the relationship between hexokinase distribution and energy metabolism in neuroblastoma cells. Krieglstein, J; Mwasekaga, S, 1987)	0.9
" Spontaneous ventilation is possible with the lesser dosage of fentanyl."	( [Anesthesia with perfused methohexital-fentanyl combination]. Alegria, D; Ancelin, P; Bourdé, MC; Chauvin, G; Texereau, P, )	0.43
"Alfentanil in combination with etomidate and N2O/O2 was given to 50 patients as single dosage (0."	( [Alfentanil in routine clinical use. A study of 50 patients]. Löffler, B, 1985)	0.27
" The dosage of etomidate and methohexitone was lowe than that reported in the literature."	( [Etomidate versus methohexital for intravenous anesthesia with alfentanyl and nitrous oxide-oxygen. A double-blind study of circulatory behavior and postoperative course]. Papst-Baierl, D; Sold, M; Weis, KH, 1985)	0.6
" 5 Methohexitone and thiopentone produced a biphasic dose-response on the K+-stimulated release of both amino acids; low concentrations enhanced release, high concentrations depressed release."	( The effects of anaesthetics on the uptake and release of amino acid neurotransmitters in thalamic slices. Kendall, TJ; Minchin, MC, 1982)	0.26
" In animals initially anesthetized with pentobarbital, delta-9-THC over a wide dosage range produced only an enhancement of the reflex, whereas in methohexital-treated animals only depression was elicited."	( Influence of different barbiturate anesthetics on delta-9-tetrahydrocannabinol effects on spinal monosynaptic reflexes. Karler, R; Turkanis, SA, 1983)	0.47
"To induce anaesthesia, 100 children between 18 months and 7 years of age who had been selected for surgery or invasive diagnosis, received a 10% methohexitone solution in a dosage of 20-30 mg/kg body weight by rectal instillation."	( [Methohexital for rectal anesthetic induction in children]. Kraus, G; Taeger, K, 1982)	1.17
"The dose-response relationship of commercially available preparations of methohexital, pentobarbital, phenobarbital, and thiopental and their respective drug-free solutions on granulocyte function was investigated to evaluate whether suppression of neutrophil chemiluminescence is mediated by the barbiturates themselves or by their drug-free solutions."	( Do barbiturates impair zymosan-induced granulocyte function? Birkhahn, A; Buhl, R; Mirow, N; Schneider, M; Weiss, M; Wernet, P, 1994)	0.52
"The dose-response effects of the four barbiturates on granulocyte function were tested by zymosan-induced neutrophil chemiluminescence and, in addition, in a cell-free chemiluminescence system."	( Do barbiturates impair zymosan-induced granulocyte function? Birkhahn, A; Buhl, R; Mirow, N; Schneider, M; Weiss, M; Wernet, P, 1994)	0.29
"The dose-response relationship of four commercially available barbiturates (methohexitone, pentobarbitone, phenobarbitone and thiopentone) and of their drug-free solutions on the production of oxygen radicals by neutrophils were tested by N-formylmethionyl-leucyl-phenylalanine (FMLP)-induced granulocyte chemiluminescence and in a cell-free chemiluminescence system."	( Do barbiturates and their solutions suppress FMLP-induced neutrophil chemiluminescence? Birkhahn, A; Buhl, R; Mirow, N; Schneider, M; Weiss, M; Wernet, P, 1994)	0.29
" These findings have implications for electrical dosing in right unilateral ECT."	( Possible impact of stimulus duration on seizure threshold in ECT. Jarvis, MR; Rasmussen, KG; Zorumski, CF, 1994)	0.29
" Mechanical difficulties such as trouble gaining intravenous access and medicinal problems such as inappropriate dosing were rare."	( Procedural complications of electroconvulsive therapy: assessment and recommendations. Haas, S; Lippmann, S; Quast, G, 1993)	0.29
" Anaesthesic efficacy of this gel was performed in 11 patients receiving a therapeutic dosage (25 mg/kg)."	( [Pharmacokinetic and clinical evaluation of rectal hydrophilic gel of methohexital in pediatric surgery]. Benoit, I; Grellet, J; Merlet, JP; Meynat, Y; Michel-Guéroult, P; Saux, MC, )	0.37
" Dosage requirements to reach the initial sedation end points of slurred speech and ptosis of eyelids vary widely from one patient to another."	( Multidrug intravenous sedation: determinants of the sedative dose of midazolam. Finder, RL; Jackson, DL; Moore, PA, 1997)	0.3
"An assessment of physical, cardiovascular, behavioral, and pharmacologic factors that might predict midazolam dosage requirements for the initial sedation titration was carried out with data collected from a large controlled clinical trial of fentanyl, midazolam, and methohexital sedation for third molar surgery."	( Multidrug intravenous sedation: determinants of the sedative dose of midazolam. Finder, RL; Jackson, DL; Moore, PA, 1997)	0.48
" The direct cost of methohexital was lower than that of propofol, based on the milligram dosage infused during the operation."	( The cost-effectiveness of methohexital versus propofol for sedation during monitored anesthesia care. Inagaki, Y; Sá Rêgo, MM; White, PF, 1999)	0.93
"The dosage of methohexitone (methohexital) administered by anesthetic staff was surveyed in a consecutive series of 52 patients referred for electroconvulsive therapy (ECT) in routine clinical practice in Edinburgh."	( A survey of methohexitone use by anesthetists in the clinical practice of ECT in Edinburgh. Cook, A; Scott, AI; Stevenson, G, 2000)	0.6
"Methohexital for ECT showed a great variability, exceeding as well as undershooting the dosage recommendations widely."	( Bispectral index-controlled anaesthesia for electroconvulsive therapy. Bauer, M; Bein, B; Buttgereit, B; Goeder, R; Hanss, R; Scholz, J; Schulz-Du Bois, AC; Steinfath, M, 2006)	1.78
" Both sedatives were administered over 7 days and individual dosage was adapted according to clinical requirements."	( Effects of propofol vs methohexital on neutrophil function and immune status in critically ill patients. Hout, Nv; Huettemann, E; Jung, A; Sakka, SG; Vogelsang, H, 2006)	0.64
" Therefore, we tested the dose-response direct cardiac effects of clinically available induction agents in an isolated septic rat heart model."	( Cardiac effects of induction agents in the septic rat heart. Busse, H; Graf, BM; Lunz, D; Sinner, B; Zausig, YA; Zink, W, 2009)	0.35
" Despite adequate dosing of both intravenous and inhalation anesthetics, our patient was resistant to induction of the state of general anesthesia."	( Hyperlipidemia sink for anesthetic agents. Eldesouki, E; Hobika, GG; Johnson, TJ; Nader, ND; Porhomayon, J; Smith, K, 2016)	0.43
" Inclusion criteria were the use of etomidate and/or methohexital and documentation of dosage, electroconvulsive therapy dosage and seizure duration."	( The influence of anaesthetic choice on seizure duration of electroconvulsive therapy; etomidate versus methohexital. Ahmadi, M; Chomrikh, L; Koopman, SJHA; Kuijper, TM; van der Vlugt, JJB, 2022)	1.19

Role	Description
intravenous anaesthetic	null
drug allergen	Any drug which causes the onset of an allergic reaction.
[role information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Class	Description
barbiturates	Members of the class of pyrimidones consisting of pyrimidine-2,4,6(1H,3H,5H)-trione (barbituric acid) and its derivatives. Largest group of the synthetic sedative/hypnotics, sharing a characteristic six-membered ring structure.
acetylenic compound	Any organic molecule containing a C#C bond.
[compound class information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Assay ID	Title	Year	Journal	Article
AID1474166	Liver toxicity in human assessed as induction of drug-induced liver injury by measuring severity class index	2016	Drug discovery today, Apr, Volume: 21, Issue:4	DILIrank: the largest reference drug list ranked by the risk for developing drug-induced liver injury in humans.
AID1079942	Steatosis, proven histopathologically. Value is number of references indexed. [column 'STEAT' in source]
AID588218	FDA HLAED, lactate dehydrogenase (LDH) increase	2004	Current drug discovery technologies, Dec, Volume: 1, Issue:4	Assessment of the health effects of chemicals in humans: II. Construction of an adverse effects database for QSAR modeling.
AID588215	FDA HLAED, alkaline phosphatase increase	2004	Current drug discovery technologies, Dec, Volume: 1, Issue:4	Assessment of the health effects of chemicals in humans: II. Construction of an adverse effects database for QSAR modeling.
AID625292	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) combined score	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID1079932	Highest frequency of moderate liver toxicity observed during clinical trials, expressed as a percentage. [column '% BIOL' in source]
AID1079948	Times to onset, minimal and maximal, observed in the indexed observations. [column 'DELAI' in source]
AID625282	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) score for cirrhosis	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID588216	FDA HLAED, serum glutamic oxaloacetic transaminase (SGOT) increase	2004	Current drug discovery technologies, Dec, Volume: 1, Issue:4	Assessment of the health effects of chemicals in humans: II. Construction of an adverse effects database for QSAR modeling.
AID38744	Negative log of molar concentration (-log ED50) required to reduce cell division by 50% in Arbacia egg; ND = No Data	1983	Journal of medicinal chemistry, Jul, Volume: 26, Issue:7	A simplified high-pressure liquid chromatography method for determining lipophilicity for structure-activity relationships.
AID588219	FDA HLAED, gamma-glutamyl transferase (GGT) increase	2004	Current drug discovery technologies, Dec, Volume: 1, Issue:4	Assessment of the health effects of chemicals in humans: II. Construction of an adverse effects database for QSAR modeling.
AID625286	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) score for hepatitis	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID625279	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) score for bilirubinemia	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID540210	Clearance in human after iv administration	2008	Drug metabolism and disposition: the biological fate of chemicals, Jul, Volume: 36, Issue:7	Trend analysis of a database of intravenous pharmacokinetic parameters in humans for 670 drug compounds.
AID1079946	Presence of at least one case with successful reintroduction. [column 'REINT' in source]
AID625281	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) score for cholelithiasis	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID588217	FDA HLAED, serum glutamic pyruvic transaminase (SGPT) increase	2004	Current drug discovery technologies, Dec, Volume: 1, Issue:4	Assessment of the health effects of chemicals in humans: II. Construction of an adverse effects database for QSAR modeling.
AID625291	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) score for liver function tests abnormal	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID588214	FDA HLAED, liver enzyme composite activity	2004	Current drug discovery technologies, Dec, Volume: 1, Issue:4	Assessment of the health effects of chemicals in humans: II. Construction of an adverse effects database for QSAR modeling.
AID1079940	Granulomatous liver disease, proven histopathologically. Value is number of references indexed. [column 'GRAN' in source]
AID540212	Mean residence time in human after iv administration	2008	Drug metabolism and disposition: the biological fate of chemicals, Jul, Volume: 36, Issue:7	Trend analysis of a database of intravenous pharmacokinetic parameters in humans for 670 drug compounds.
AID540213	Half life in human after iv administration	2008	Drug metabolism and disposition: the biological fate of chemicals, Jul, Volume: 36, Issue:7	Trend analysis of a database of intravenous pharmacokinetic parameters in humans for 670 drug compounds.
AID540211	Fraction unbound in human after iv administration	2008	Drug metabolism and disposition: the biological fate of chemicals, Jul, Volume: 36, Issue:7	Trend analysis of a database of intravenous pharmacokinetic parameters in humans for 670 drug compounds.
AID625285	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) score for hepatic necrosis	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID1130944	Hypnotic activity in rabbit	1979	Journal of medicinal chemistry, Nov, Volume: 22, Issue:11	Correlation of biological activity and high-pressure liquid chromatographic retention index for a series of propranolol, barbiturate, and anthranilic acid analogues.
AID1079937	Severe hepatitis, defined as possibly life-threatening liver failure or through clinical observations. Value is number of references indexed. [column 'MASS' in source]
AID625290	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) score for liver fatty	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID1079934	Highest frequency of acute liver toxicity observed during clinical trials, expressed as a percentage. [column '% AIGUE' in source]
AID1130943	Octanol-water partition coefficient, log P of nonionized form of compound	1979	Journal of medicinal chemistry, Nov, Volume: 22, Issue:11	Correlation of biological activity and high-pressure liquid chromatographic retention index for a series of propranolol, barbiturate, and anthranilic acid analogues.
AID1079944	Benign tumor, proven histopathologically. Value is number of references indexed. [column 'T.BEN' in source]
AID1079936	Choleostatic liver toxicity, either proven histopathologically or where the ratio of maximal ALT or AST activity above normal to that of Alkaline Phosphatase is < 2 (see ACUTE). Value is number of references indexed. [column 'CHOLE' in source]
AID625284	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) score for hepatic failure	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID1079943	Malignant tumor, proven histopathologically. Value is number of references indexed. [column 'T.MAL' in source]
AID169098	Negative log of molar concentration (-log C) required to produce 50% inhibition of oxygen (oxygen uptake) on rat brain respiration in vitro; ND = No Data	1983	Journal of medicinal chemistry, Jul, Volume: 26, Issue:7	A simplified high-pressure liquid chromatography method for determining lipophilicity for structure-activity relationships.
AID625283	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) score for elevated liver function tests	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID1079939	Cirrhosis, proven histopathologically. Value is number of references indexed. [column 'CIRRH' in source]
AID1474167	Liver toxicity in human assessed as induction of drug-induced liver injury by measuring verified drug-induced liver injury concern status	2016	Drug discovery today, Apr, Volume: 21, Issue:4	DILIrank: the largest reference drug list ranked by the risk for developing drug-induced liver injury in humans.
AID540209	Volume of distribution at steady state in human after iv administration	2008	Drug metabolism and disposition: the biological fate of chemicals, Jul, Volume: 36, Issue:7	Trend analysis of a database of intravenous pharmacokinetic parameters in humans for 670 drug compounds.
AID1079933	Acute liver toxicity defined via clinical observations and clear clinical-chemistry results: serum ALT or AST activity > 6 N or serum alkaline phosphatases activity > 1.7 N. This category includes cytolytic, choleostatic and mixed liver toxicity. Value is
AID625288	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) score for jaundice	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID625287	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) score for hepatomegaly	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID1079935	Cytolytic liver toxicity, either proven histopathologically or where the ratio of maximal ALT or AST activity above normal to that of Alkaline Phosphatase is > 5 (see ACUTE). Value is number of references indexed. [column 'CYTOL' in source]
AID1079931	Moderate liver toxicity, defined via clinical-chemistry results: ALT or AST serum activity 6 times the normal upper limit (N) or alkaline phosphatase serum activity of 1.7 N. Value is number of references indexed. [column 'BIOL' in source]
AID625289	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) score for liver disease	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID1079938	Chronic liver disease either proven histopathologically, or through a chonic elevation of serum amino-transferase activity after 6 months. Value is number of references indexed. [column 'CHRON' in source]
AID1079949	Proposed mechanism(s) of liver damage. [column 'MEC' in source]
AID1079947	Comments (NB not yet translated). [column 'COMMENTAIRES' in source]
AID26320	pKa value is evaluated	1983	Journal of medicinal chemistry, Jul, Volume: 26, Issue:7	A simplified high-pressure liquid chromatography method for determining lipophilicity for structure-activity relationships.
AID167610	Negative log of minimum effective dose (moles per kilogram) in rabbits (hypnotic)	1983	Journal of medicinal chemistry, Jul, Volume: 26, Issue:7	A simplified high-pressure liquid chromatography method for determining lipophilicity for structure-activity relationships.
AID1079941	Liver damage due to vascular disease: peliosis hepatitis, hepatic veno-occlusive disease, Budd-Chiari syndrome. Value is number of references indexed. [column 'VASC' in source]
AID1079945	Animal toxicity known. [column 'TOXIC' in source]
AID24211	Compound is evaluated for ionization constant log k	1983	Journal of medicinal chemistry, Jul, Volume: 26, Issue:7	A simplified high-pressure liquid chromatography method for determining lipophilicity for structure-activity relationships.
AID625280	Drug Induced Liver Injury Prediction System (DILIps) training set; hepatic side effect (HepSE) score for cholecystitis	2011	PLoS computational biology, Dec, Volume: 7, Issue:12	Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID1130940	Retention index of the compound by HPLC method	1979	Journal of medicinal chemistry, Nov, Volume: 22, Issue:11	Correlation of biological activity and high-pressure liquid chromatographic retention index for a series of propranolol, barbiturate, and anthranilic acid analogues.
[information is prepared from bioassay data collected from National Library of Medicine (NLM), extracted Dec-2023]

Timeframe	Studies, This Drug (%)	All Drugs %
pre-1990	1010 (71.13)	18.7374
1990's	250 (17.61)	18.2507
2000's	105 (7.39)	29.6817
2010's	42 (2.96)	24.3611
2020's	13 (0.92)	2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Publication Type	This drug (%)	All Drugs (%)
Trials	261 (16.94%)	5.53%
Reviews	46 (2.99%)	6.00%
Case Studies	64 (4.15%)	4.05%
Observational	4 (0.26%)	0.25%
Other	1,166 (75.67%)	84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Trial	Phase	Enrollment	Study Type	Start Date	Status
Comparing Therapeutic Efficacy and Cognitive Side Effects of Electroconvulsive Therapy (ECT) Using Ketamine Versus Methohexital Anesthesia [NCT01881763]	Phase 4	31 participants (Actual)	Interventional	2010-06-30	Completed
Comparison of Methohexital With Propofol for Anesthetic Induction in Patients Treated With an Antagonist of the Renin-Angiotensin System. [NCT02624050]		51 participants (Actual)	Interventional	2016-08-01	Completed
Comparison of Bolus Dosing of Methohexital and Propofol in Elective Direct Current Cardioversion [NCT04187196]	Phase 4	73 participants (Actual)	Interventional	2020-04-29	Completed
A Randomized Comparison of Ketamine and Methohexital Anesthesia for Electroconvulsive Therapy (ECT) in Depression [NCT01367119]		38 participants (Actual)	Interventional	2011-05-31	Completed
Ketamine vs. Methohexital Anesthesia for Improvement of Major Depressive Disorder in Electroconvulsive Therapy [NCT02752724]		52 participants (Actual)	Interventional	2016-03-31	Completed
A Prospective Randomized, Double Blind, Controlled, Safety and Non-inferiority Study of Esketamine Plus Propofol Compared to Methohexital Anesthesia for Electroconvulsive Therapy [NCT05655754]	Phase 4	100 participants (Anticipated)	Interventional	2022-11-01	Recruiting
Ketamine Anesthesia to Enhance Efficacy and Tolerability of Electroconvulsive Therapy in Patients With Unipolar or Bipolar Depression [NCT01309581]		3 participants (Actual)	Interventional	2010-04-30	Terminated(stopped due to limited enrollment)
A Randomized Pilot Study Examining DCEEG Characteristics in Ketamine Versus Methohexital Induction in Depressed Patients Receiving Electroconvulsive Therapy [NCT04022226]	Early Phase 1	11 participants (Actual)	Interventional	2019-10-01	Completed
A Randomised Controlled Trial of Standard Bilateral Electroconvulsive Therapy Versus High-dose Unilateral Electroconvulsive Therapy for Severe Depression [NCT01907217]	Phase 4	138 participants (Actual)	Interventional	2008-05-31	Completed
The Use of Ketamine Versus Methohexital for Electroconvulsive Therapy: A Cross-Over Comparative Study on Patient Recovery and Re-Orientation Time [NCT01567852]		20 participants (Actual)	Interventional	2011-08-31	Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial	Outcome
NCT01367119 (3) [back to overview]	Mean Post Anesthesia Recovery Side Effects
NCT01367119 (3) [back to overview]	Mean Depression Rating Using the Patient Health Questionnaire-9 (PHQ-9)
NCT01367119 (3) [back to overview]	Mean Depression Rating Using the Hospital Anxiety and Depression Scale (HADS)
NCT01567852 (2) [back to overview]	Recovery Time
NCT01567852 (2) [back to overview]	Re-orientation Time
NCT01881763 (1) [back to overview]	Hamilton Rating Scale for Depression (HRSD) Improvement
NCT01907217 (4) [back to overview]	Columbia Autobiographical Memory Interview-Short Form (AMI-SF)
NCT01907217 (4) [back to overview]	Columbia Autobiographical Memory Interview-Short Form (AMI-SF)
NCT01907217 (4) [back to overview]	Columbia Autobiographical Memory Interview-Short Form (AMI-SF)
NCT01907217 (4) [back to overview]	Hamilton Depression Rating Scale (HDRS)
NCT02624050 (11) [back to overview]	Diastolic Blood Pressure
NCT02624050 (11) [back to overview]	Duration of Each Hypotension Episode
NCT02624050 (11) [back to overview]	Heart Rate
NCT02624050 (11) [back to overview]	Number of Participants Who Had Hypotensive Events
NCT02624050 (11) [back to overview]	Number of Participants With Refractory Hypotension
NCT02624050 (11) [back to overview]	Systolic Blood Pressure
NCT02624050 (11) [back to overview]	Blood Levels of Angiotensin II (AII) (at Baseline (Time 0) and 3,5,10 and 15 Min After Anesthetic Induction)
NCT02624050 (11) [back to overview]	Blood Levels of Arginine Vasopressin (AVP) (at Baseline (Time 0) and 3,5,10 and 15 Min After Anesthetic Induction) for Participants Who Did Not Receive AVP for Refractory Hypotension
NCT02624050 (11) [back to overview]	Blood Levels of AVP (at Baseline (Time 0) and 3,5,10 and 15 Min) for Participants Who Received AVP for Refractory Hypotension
NCT02624050 (11) [back to overview]	Blood Levels of Epinephrine (at Baseline (Time 0) and 3,5,10 and 15 Min After Induction of Anesthesia)
NCT02624050 (11) [back to overview]	Serum Concentration of Norepinephrine (NE) (at Baseline (Time 0) and 3,5,10 and 15 Min After Anesthetic Induction)
NCT04187196 (12) [back to overview]	Time to First Electrical Direct-current Shock
NCT04187196 (12) [back to overview]	Diastolic Blood Pressure
NCT04187196 (12) [back to overview]	Heart Rate
NCT04187196 (12) [back to overview]	Mean Arterial Blood Pressure
NCT04187196 (12) [back to overview]	Respiratory Rate
NCT04187196 (12) [back to overview]	Saturation of Peripheral Oxygen (SpO2)
NCT04187196 (12) [back to overview]	Systolic Blood Pressure
NCT04187196 (12) [back to overview]	Time From Initiation of Sedation to Full Recovery
NCT04187196 (12) [back to overview]	Time From End of Injection to Loss of Conscious
NCT04187196 (12) [back to overview]	Recall of Pain at Injection Site - Visual Analog Scale
NCT04187196 (12) [back to overview]	Recall of Anything Unpleasant About the Procedure - Visual Analog Scale
NCT04187196 (12) [back to overview]	Time to Eyes Opening

Intervention	units on a scale (Mean)
	Nausea	Headache	Myalgia	Visual Disturbance	Confusion	Recovery Room Agitation
Ketamine	0.12	0.29	0.07	0.08	0.70	0.07
Methohexital	0.15	0.35	0.15	0.01	0.30	0.09

Intervention	units on a scale (Mean)
Ketamine	15.98
Methohexital	17.57

Intervention	units on a scale (Mean)
Ketamine	22.08
Methohexital	24.45

Intervention	minutes (Mean)
Ketamine Inductions	28.6
Methohexital Inductions	27.2

Intervention	minutes (Mean)
Ketamine Inductions	24.5
Methohexital Inductions	19.5

Intervention	HRSD units (Mean)
Ketamine	7.82
Methohexital	8.60

Intervention	% of baseline performance (Mean)
Bilateral ECT Mecta 5000M	56.2
High-dose Unilateral ECT Mecta 5000M	67.3

Intervention	% of baseline performance (Mean)
Bilateral ECT Mecta 5000M	52.9
High-dose Unilateral ECT Mecta 5000M	63.4

Intervention	% of baseline performance (Mean)
Bilateral ECT Mecta 5000M	56.8
High-dose Unilateral ECT Mecta 5000M	67.1

Intervention	units on a scale (Mean)
	Baseline	End-of-treatment	3 months follow-up	6 months follow-up
Bilateral ECT Mecta 5000M	29.5	12.5	15.0	13.0
High-dose Unilateral ECT Mecta 5000M	30.4	11.1	11.5	12.6

Intervention	mm Hg (Mean)
Methohexital	85
Propofol	72

Intervention	min (Mean)
Methohexital	5.1
Propofol	4.8

Intervention	bpm (Mean)
Methohexital	80
Propofol	76

Intervention	Participants (Count of Participants)
Methohexital	8
Propofol	21

Intervention	Participants (Count of Participants)
Methohexital	2
Propofol	5

Intervention	mm Hg (Mean)
Methohexital	141
Propofol	126

Intervention	pg/ml (Mean)
	Time 0	3 min	5 min	10 min	15 min
Methohexital	21.71	19.07	21.42	24.46	22.16
Propofol	18.85	19.56	20.62	20.32	17.63

Intervention	pg/ml (Mean)
	Time 0	3 min	5 min	10 min	15 min
Methohexital	30.75	25.07	34.66	29.36	26.76
Propofol	29.76	26.50	23.99	16.37	22.15

Intervention	pg/ml (Mean)
	Time 0	3 min	5 min	10 min	15 min
Methohexital	14.85	10.57	13.73	13.93	12.85
Propofol	33.28	30.24	29.89	22.61	63.86

Intervention	pg/ml (Mean)
	Time 0	3 min	5 min	10 min	15 min
Methohexital	70.89	60.86	89.85	40.96	46.28
Propofol	66.46	49.87	57.29	44.17	39.56

Intervention	pg/ml (Mean)
	Time 0	3 min	5 min	10 min	15 min
Methohexital	205.68	175.24	212.34	179.42	173.25
Propofol	200.59	166.04	208.93	168.39	147.32

Intervention	seconds (Median)
Sedation With Propofol Group	1.28
Sedation With Methohexital Group	1.2

Intervention	mmHg (Median)
	at induction	prior to first shock	1 minute after first cardioversion	3 minutes after first cardioversion	5 minutes after first cardioversion	7 minutes after first cardioversion	9 minutes after first cardioversion	10 minutes after first cardioversion	15 minutes after first cardioversion	20 minutes after first cardioversion	30 minutes after first cardioversion
Sedation With Methohexital Group	79.5	81.5	76	74	73	72	68	68	69	66	67
Sedation With Propofol Group	78	82	70	65	65	63	60	67	65	66	67

Intervention	beats per minute (Median)
	at induction	prior to first shock	1 minute after first cardioversion	3 minutes after first cardioversion	5 minutes after first cardioversion	7 minutes after first cardioversion	9 minutes after first cardioversion	10 minutes after first cardioversion	15 minutes after first cardioversion	20 minutes after first cardioversion	30 minutes after first cardioversion
Sedation With Methohexital Group	93	92	73.5	73.5	69	69	67.5	68	68	68	69
Sedation With Propofol Group	96	100	69	66	69	66	65	64	64.5	62.5	65.5

Intervention	mmHg (Median)
	at induction	prior to first shock	1 minute after first cardioversion	3 minutes after first cardioversion	5 minutes after first cardioversion	7 minutes after first cardioversion	9 minutes after first cardioversion	10 minutes after first cardioversion	15 minutes after first cardioversion	20 minutes after first cardioversion	30 minutes after first cardioversion
Sedation With Methohexital Group	104.5	104.5	101.5	104	101	99.5	95	94	92	92	93
Sedation With Propofol Group	104	102	91	86	84	81	81	84	85	86	87

Intervention	number of breaths per minute (Median)
	at induction	prior to first shock	1 minute after first cardioversion	3 minutes after first cardioversion	5 minutes after first cardioversion	7 minutes after first cardioversion	9 minutes after first cardioversion	10 minutes after first cardioversion	15 minutes after first cardioversion	20 minutes after first cardioversion	30 minutes after first cardioversion
Sedation With Methohexital Group	16.5	16.5	17	19.5	18.5	19.5	17	18	17	18	18
Sedation With Propofol Group	16	18	17	19	19	19	18	18	18	17	18

Intervention	percentage of oxygen saturation (Median)
	at induction	prior to first shock	1 minute after first cardioversion	3 minutes after first cardioversion	5 minutes after first cardioversion	7 minutes after first cardioversion	9 minutes after first cardioversion	10 minutes after first cardioversion	15 minutes after first cardioversion	20 minutes after first cardioversion	30 minutes after first cardioversion
Sedation With Methohexital Group	100	100	99.5	100	100	100	100	100	100	99	98
Sedation With Propofol Group	100	100	98	99	99	99	100	100	100	99	98

Intervention	mmHg (Median)
	at induction	prior to first shock	1 minute after first cardioversion	3 minutes after first cardioversion	5 minutes after first cardioversion	7 minutes after first cardioversion	9 minutes after first cardioversion	10 minutes after first cardioversion	15 minutes after first cardioversion	20 minutes after first cardioversion
Sedation With Methohexital Group	140	144	132	140.5	142.5	139.5	131	136	131	127
Sedation With Propofol Group	132	138	124	122	114	111	111	113	113	116

Intervention	minutes (Median)
Sedation With Propofol Group	7.6
Sedation With Methohexital Group	5.5

Intervention	minutes (Median)
Sedation With Propofol Group	1.0
Sedation With Methohexital Group	1.0

Substance	Relationship Strength	Studies	Trials	Classes	Roles
ethylene chlorohydrin Ethylene Chlorohydrin: Used as a solvent, in the manufacture of insecticides, and for treating sweet potatoes before planting. May cause nausea, vomiting, pains in head and chest, stupefaction. Irritates mucous membranes and causes kidney and liver degeneration.. chloroethanol : An organochlorine compound that is ethanol substituted by at least one chloro group.	1.99	1	0	chloroethanol	xenobiotic metabolite
gamma-aminobutyric acid gamma-Aminobutyric Acid: The most common inhibitory neurotransmitter in the central nervous system.. gamma-aminobutyric acid : A gamma-amino acid that is butanoic acid with the amino substituent located at C-4.	3.47	8	0	amino acid zwitterion; gamma-amino acid; monocarboxylic acid	human metabolite; neurotransmitter; Saccharomyces cerevisiae metabolite; signalling molecule
quinacrine Quinacrine: An acridine derivative formerly widely used as an antimalarial but superseded by chloroquine in recent years. It has also been used as an anthelmintic and in the treatment of giardiasis and malignant effusions. It is used in cell biological experiments as an inhibitor of phospholipase A2.. quinacrine : A member of the class of acridines that is acridine substituted by a chloro group at position 6, a methoxy group at position 2 and a [5-(diethylamino)pentan-2-yl]nitrilo group at position 9.	2.04	1	0	acridines; aromatic ether; organochlorine compound; tertiary amino compound	antimalarial; EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor
betaine glycine betaine : The amino acid betaine derived from glycine.	3.23	1	0	amino-acid betaine; glycine derivative	fundamental metabolite
carbamates [no description available]	1.94	1	0	amino-acid anion
carbon monoxide Carbon Monoxide: Carbon monoxide (CO). A poisonous colorless, odorless, tasteless gas. It combines with hemoglobin to form carboxyhemoglobin, which has no oxygen carrying capacity. The resultant oxygen deprivation causes headache, dizziness, decreased pulse and respiratory rates, unconsciousness, and death. (From Merck Index, 11th ed). carbon monoxide : A one-carbon compound in which the carbon is joined only to a single oxygen. It is a colourless, odourless, tasteless, toxic gas.	2	1	0	carbon oxide; gas molecular entity; one-carbon compound	biomarker; EC 1.9.3.1 (cytochrome c oxidase) inhibitor; human metabolite; ligand; metabolite; mitochondrial respiratory-chain inhibitor; mouse metabolite; neurotoxin; neurotransmitter; P450 inhibitor; probe; signalling molecule; vasodilator agent
choline [no description available]	3.73	2	1	cholines	allergen; Daphnia magna metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter; nutrient; plant metabolite; Saccharomyces cerevisiae metabolite
bupropion Bupropion: A propiophenone-derived antidepressant and antismoking agent that inhibits the uptake of DOPAMINE.. bupropion : An aromatic ketone that is propiophenone carrying a tert-butylamino group at position 2 and a chloro substituent at position 3 on the phenyl ring.	3.56	2	0	aromatic ketone; monochlorobenzenes; secondary amino compound	antidepressant; environmental contaminant; xenobiotic
aminocaproic acid Aminocaproic Acid: An antifibrinolytic agent that acts by inhibiting plasminogen activators which have fibrinolytic properties.. 6-aminohexanoic acid : An epsilon-amino acid comprising hexanoic acid carrying an amino substituent at position C-6. Used to control postoperative bleeding, and to treat overdose effects of the thrombolytic agents streptokinase and tissue plasminogen activator.	3.84	3	0	amino acid zwitterion; epsilon-amino acid; omega-amino fatty acid	antifibrinolytic drug; hematologic agent; metabolite
lactic acid Lactic Acid: A normal intermediate in the fermentation (oxidation, metabolism) of sugar. The concentrated form is used internally to prevent gastrointestinal fermentation. (From Stedman, 26th ed). 2-hydroxypropanoic acid : A 2-hydroxy monocarboxylic acid that is propanoic acid in which one of the alpha-hydrogens is replaced by a hydroxy group.	2.41	2	0	2-hydroxy monocarboxylic acid	algal metabolite; Daphnia magna metabolite
glycine [no description available]	2.39	2	0	alpha-amino acid; amino acid zwitterion; proteinogenic amino acid; serine family amino acid	EC 2.1.2.1 (glycine hydroxymethyltransferase) inhibitor; fundamental metabolite; hepatoprotective agent; micronutrient; neurotransmitter; NMDA receptor agonist; nutraceutical
glycerol Moon: The natural satellite of the planet Earth. It includes the lunar cycles or phases, the lunar month, lunar landscapes, geography, and soil.	2.37	2	0	alditol; triol	algal metabolite; detergent; Escherichia coli metabolite; geroprotector; human metabolite; mouse metabolite; osmolyte; Saccharomyces cerevisiae metabolite; solvent
histamine [no description available]	4.26	4	1	aralkylamino compound; imidazoles	human metabolite; mouse metabolite; neurotransmitter
dihydroxyphenylalanine Dihydroxyphenylalanine: A beta-hydroxylated derivative of phenylalanine. The D-form of dihydroxyphenylalanine has less physiologic activity than the L-form and is commonly used experimentally to determine whether the pharmacological effects of LEVODOPA are stereospecific.. dopa : A hydroxyphenylalanine carrying hydroxy substituents at positions 3 and 4 of the benzene ring.	1.94	1	0	hydroxyphenylalanine; non-proteinogenic alpha-amino acid; tyrosine derivative	human metabolite
niacin Niacin: A water-soluble vitamin of the B complex occurring in various animal and plant tissues. It is required by the body for the formation of coenzymes NAD and NADP. It has PELLAGRA-curative, vasodilating, and antilipemic properties.. vitamin B3 : Any member of a group of vitamers that belong to the chemical structural class called pyridines that exhibit biological activity against vitamin B3 deficiency. Vitamin B3 deficiency causes a condition known as pellagra whose symptoms include depression, dermatitis and diarrhea. The vitamers include nicotinic acid and nicotinamide (and their ionized and salt forms).. nicotinic acid : A pyridinemonocarboxylic acid that is pyridine in which the hydrogen at position 3 is replaced by a carboxy group.	3.23	1	0	pyridine alkaloid; pyridinemonocarboxylic acid; vitamin B3	antidote; antilipemic drug; EC 3.5.1.19 (nicotinamidase) inhibitor; Escherichia coli metabolite; human urinary metabolite; metabolite; mouse metabolite; plant metabolite; vasodilator agent
nitrous oxide Nitrous Oxide: Nitrogen oxide (N2O). A colorless, odorless gas that is used as an anesthetic and analgesic. High concentrations cause a narcotic effect and may replace oxygen, causing death by asphyxia. It is also used as a food aerosol in the preparation of whipping cream.. dinitrogen oxide : A nitrogen oxide consisting of linear unsymmetrical molecules with formula N2O. While it is the most used gaseous anaesthetic in the world, its major commercial use, due to its solubility under pressure in vegetable fats combined with its non-toxicity in low concentrations, is as an aerosol spray propellant and aerating agent for canisters of 'whipped' cream.	11.58	94	21	gas molecular entity; nitrogen oxide	analgesic; bacterial metabolite; food packaging gas; food propellant; general anaesthetic; greenhouse gas; inhalation anaesthetic; NMDA receptor antagonist; raising agent; refrigerant; vasodilator agent
pyrazinamide pyrazinecarboxamide : A monocarboxylic acid amide resulting from the formal condensation of the carboxy group of pyrazinoic acid (pyrazine-2-carboxylic acid) with ammonia. A prodrug for pyrazinoic acid, pyrazinecarboxamide is used as part of multidrug regimens for the treatment of tuberculosis.	3.23	1	0	monocarboxylic acid amide; N-acylammonia; pyrazines	antitubercular agent; prodrug
pyridoxine 4,5-bis(hydroxymethyl)-2-methylpyridin-3-ol: structure in first source. vitamin B6 : Any member of the group of pyridines that exhibit biological activity against vitamin B6 deficiency. Vitamin B6 deficiency is associated with microcytic anemia, electroencephalographic abnormalities, dermatitis with cheilosis (scaling on the lips and cracks at the corners of the mouth) and glossitis (swollen tongue), depression and confusion, and weakened immune function. Vitamin B6 consists of the vitamers pyridoxine, pyridoxal, and pyridoxamine and their respective 5'-phosphate esters (and includes their corresponding ionized and salt forms).	3.23	1	0	hydroxymethylpyridine; methylpyridines; monohydroxypyridine; vitamin B6	cofactor; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
sulfites Sulfites: Inorganic salts of sulfurous acid.. sulfites : Any sulfurous acid derivative that is a salt or an ester of sulfurous acid.. organosulfonate oxoanion : An organic anion obtained by deprotonation of the sufonate group(s) of any organosulfonic acid.. sulfite : A sulfur oxoanion that is the conjugate base of hydrogen sulfite (H2SO3).	2.01	1	0	divalent inorganic anion; sulfur oxide; sulfur oxoanion
taurine [no description available]	3.39	1	1	amino sulfonic acid; zwitterion	antioxidant; Escherichia coli metabolite; glycine receptor agonist; human metabolite; mouse metabolite; nutrient; radical scavenger; Saccharomyces cerevisiae metabolite
thiamine thiamine(1+) : A primary alcohol that is 1,3-thiazol-3-ium substituted by (4-amino-2-methylpyrimidin-5-yl)methyl, methyl and 2-hydroxyethyl groups at positions 3, 4 and 5, respectively.	3.23	1	0	primary alcohol; vitamin B1	Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
urea pseudourea: clinical use; structure. isourea : A carboximidic acid that is the imidic acid tautomer of urea, H2NC(=NH)OH, and its hydrocarbyl derivatives.	2.36	2	0	isourea; monocarboxylic acid amide; one-carbon compound	Daphnia magna metabolite; Escherichia coli metabolite; fertilizer; flour treatment agent; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
2-amino-5-phosphonovalerate 2-Amino-5-phosphonovalerate: The D-enantiomer is a potent and specific antagonist of NMDA glutamate receptors (RECEPTORS, N-METHYL-D-ASPARTATE). The L form is inactive at NMDA receptors but may affect the AP4 (2-amino-4-phosphonobutyrate; APB) excitatory amino acid receptors.	1.97	1	0	non-proteinogenic alpha-amino acid	NMDA receptor antagonist
alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid: An IBOTENIC ACID homolog and glutamate agonist. The compound is the defining agonist for the AMPA subtype of glutamate receptors (RECEPTORS, AMPA). It has been used as a radionuclide imaging agent but is more commonly used as an experimental tool in cell biological studies.	1.98	1	0	non-proteinogenic alpha-amino acid
2,3-piperidinedicarboxylic acid 2,3-piperidinedicarboxylic acid: effective antagonist at all three types of excitatory amino acid receptors; does not depress responses to acetylcholine or substance P	1.97	1	0
3-(2-carboxypiperazin-4-yl)propyl-1-phosphonic acid 3-(2-carboxypiperazin-4-yl)propyl-1-phosphonic acid: structure given in first source; NMDA receptor antagonist	1.97	1	0
ibotenic acid Ibotenic Acid: A neurotoxic isoxazole (similar to KAINIC ACID and MUSCIMOL) found in AMANITA mushrooms. It causes motor depression, ataxia, and changes in mood, perceptions and feelings, and is a potent excitatory amino acid agonist.	1.98	1	0	non-proteinogenic alpha-amino acid	neurotoxin
1-(3-chlorophenyl)piperazine 1-(3-chlorophenyl)piperazine: supposed metabolite of TRAZODONE; RN given refers to parent cpd; structure. 1-(3-chlorophenyl)piperazine : A N-arylpiperazine that is piperazine carrying a 3-chlorophenyl substituent at position 1. It is a metabolite of the antidepressant drug trazodone.	2.04	1	0	monochlorobenzenes; N-arylpiperazine	drug metabolite; environmental contaminant; serotonergic agonist; xenobiotic
enprofylline enprofylline : Xanthine bearing a propyl substituent at position 3. A bronchodilator, it is used for the symptomatic treatment of asthma and chronic obstructive pulmonary disease, and in the management of cerebrovascular insufficiency, sickle cell disease, and diabetic neuropathy.	2.04	1	0	oxopurine	anti-arrhythmia drug; anti-asthmatic drug; bronchodilator agent; non-steroidal anti-inflammatory drug
4-aminopyridine [no description available]	2.39	2	0	aminopyridine; aromatic amine	avicide; orphan drug; potassium channel blocker
phenytoin [no description available]	3.99	4	0	imidazolidine-2,4-dione	anticonvulsant; drug allergen; sodium channel blocker; teratogenic agent
7-nitroindazole 7-nitroindazole: an inhibitor of nitric oxide synthase; exhibits anti-nociceptive activity without increasing blood pressure	1.99	1	0
tacrine Tacrine: A cholinesterase inhibitor that crosses the blood-brain barrier. Tacrine has been used to counter the effects of muscle relaxants, as a respiratory stimulant, and in the treatment of Alzheimer's disease and other central nervous system disorders.. tacrine : A member of the class of acridines that is 1,2,3,4-tetrahydroacridine substituted by an amino group at position 9. It is used in the treatment of Alzheimer's disease.	2.43	2	0	acridines; aromatic amine	EC 3.1.1.7 (acetylcholinesterase) inhibitor
acebutolol Acebutolol: A cardioselective beta-1 adrenergic antagonist with little effect on the bronchial receptors. The drug has stabilizing and quinidine-like effects on cardiac rhythm, as well as weak inherent sympathomimetic action.. acebutolol : An ether that is the 2-acetyl-4-(butanoylamino)phenyl ether of the primary hydroxy group of 3-(propan-2-ylamino)propane-1,2-diol.	3.84	3	0	aromatic amide; ethanolamines; ether; monocarboxylic acid amide; propanolamine; secondary amino compound	anti-arrhythmia drug; antihypertensive agent; beta-adrenergic antagonist; sympathomimetic agent
acetaminophen Acetaminophen: Analgesic antipyretic derivative of acetanilide. It has weak anti-inflammatory properties and is used as a common analgesic, but may cause liver, blood cell, and kidney damage.. paracetamol : A member of the class of phenols that is 4-aminophenol in which one of the hydrogens attached to the amino group has been replaced by an acetyl group.	4.04	4	0	acetamides; phenols	antipyretic; cyclooxygenase 1 inhibitor; cyclooxygenase 2 inhibitor; cyclooxygenase 3 inhibitor; environmental contaminant; ferroptosis inducer; geroprotector; hepatotoxic agent; human blood serum metabolite; non-narcotic analgesic; non-steroidal anti-inflammatory drug; xenobiotic
acetazolamide Acetazolamide: One of the CARBONIC ANHYDRASE INHIBITORS that is sometimes effective against absence seizures. It is sometimes useful also as an adjunct in the treatment of tonic-clonic, myoclonic, and atonic seizures, particularly in women whose seizures occur or are exacerbated at specific times in the menstrual cycle. However, its usefulness is transient often because of rapid development of tolerance. Its antiepileptic effect may be due to its inhibitory effect on brain carbonic anhydrase, which leads to an increased transneuronal chloride gradient, increased chloride current, and increased inhibition. (From Smith and Reynard, Textbook of Pharmacology, 1991, p337)	3.58	2	0	monocarboxylic acid amide; sulfonamide; thiadiazoles	anticonvulsant; diuretic; EC 4.2.1.1 (carbonic anhydrase) inhibitor
acetohydroxamic acid acetohydroxamic acid: urease inhibitor. oxime : Compounds of structure R2C=NOH derived from condensation of aldehydes or ketones with hydroxylamine. Oximes from aldehydes may be called aldoximes; those from ketones may be called ketoximes.. N-hydroxyacetimidic acid : A carbohydroximic acid consisting of acetimidic acid having a hydroxy group attached to the imide nitrogen.. acetohydroxamic acid : A member of the class of acetohydroxamic acids that is acetamide in which one of the amino hydrogens has been replaced by a hydroxy group.	3.56	2	0	acetohydroxamic acids; carbohydroximic acid	algal metabolite; EC 3.5.1.5 (urease) inhibitor
alaproclate alaproclate: specific 5-hydroxytryptamine uptake inhibitors; RN given refers to (DL)-isomer	3.23	1	0	alpha-amino acid ester
albendazole [no description available]	3.23	1	0	aryl sulfide; benzimidazoles; benzimidazolylcarbamate fungicide; carbamate ester	anthelminthic drug; microtubule-destabilising agent; tubulin modulator
albuterol Albuterol: A short-acting beta-2 adrenergic agonist that is primarily used as a bronchodilator agent to treat ASTHMA. Albuterol is prepared as a racemic mixture of R(-) and S(+) stereoisomers. The stereospecific preparation of R(-) isomer of albuterol is referred to as levalbuterol.. albuterol : A member of the class of phenylethanolamines that is 4-(2-amino-1-hydroxyethyl)-2-(hydroxymethyl)phenol having a tert-butyl group attached to the nirogen atom. It acts as a beta-adrenergic agonist used in the treatment of asthma and chronic obstructive pulmonary disease (COPD).	3.84	3	0	phenols; phenylethanolamines; secondary amino compound	beta-adrenergic agonist; bronchodilator agent; environmental contaminant; xenobiotic
alendronate alendronic acid : A 1,1-bis(phosphonic acid) that is methanebis(phosphonic acid) in which the two methylene hydrogens are replaced by hydroxy and 3-aminopropyl groups.	3.56	2	0	1,1-bis(phosphonic acid); primary amino compound	bone density conservation agent; EC 2.5.1.1 (dimethylallyltranstransferase) inhibitor
alfuzosin alfuzosin: structure given in first source	3.58	2	0	monocarboxylic acid amide; quinazolines; tetrahydrofuranol	alpha-adrenergic antagonist; antihypertensive agent; antineoplastic agent
alosetron alosetron : A pyrido[4,3-b]indole compound having a 5-methyl-1H-imidazol-4-ylmethyl group at the 2-position.	3.58	2	0	imidazoles; pyridoindole	antiemetic; gastrointestinal drug; serotonergic antagonist
alprazolam Alprazolam: A triazolobenzodiazepine compound with antianxiety and sedative-hypnotic actions, that is efficacious in the treatment of PANIC DISORDERS, with or without AGORAPHOBIA, and in generalized ANXIETY DISORDERS. (From AMA Drug Evaluations Annual, 1994, p238). alprazolam : A member of the class of triazolobenzodiazepines that is 4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepine carrying methyl, phenyl and chloro substituents at positions 1, 6 and 8 respectively. Alprazolam is only found in individuals that have taken this drug.	3.84	3	0	organochlorine compound; triazolobenzodiazepine	anticonvulsant; anxiolytic drug; GABA agonist; muscle relaxant; sedative; xenobiotic
alprenolol Alprenolol: One of the ADRENERGIC BETA-ANTAGONISTS used as an antihypertensive, anti-anginal, and anti-arrhythmic agent.. alprenolol : A secondary alcohol that is propan-2-ol substituted by a 2-allylphenoxy group at position 1 and an isopropylamino group at position 3. It is a beta-adrenergic antagonist used as a antihypertensive, anti-arrhythmia and a sympatholytic agent.	2.04	1	0	secondary alcohol; secondary amino compound	anti-arrhythmia drug; antihypertensive agent; beta-adrenergic antagonist; sympatholytic agent
altretamine Altretamine: A hexamethyl-2,4,6-triamine derivative of 1,3,5-triazine.	3.56	2	0	triamino-1,3,5-triazine
amantadine amant: an antiviral compound consisting of an adamantane derivative chemically linked to a water-solube polyanioic matrix; structure in first source	4.02	4	0	adamantanes; primary aliphatic amine	analgesic; antiparkinson drug; antiviral drug; dopaminergic agent; NMDA receptor antagonist; non-narcotic analgesic
ambenonium ambenonium : A symmetrical oxalamide-based bis-quaternary ammonium ion having ethyl and 2-chlorobenzyl groups attached to the nitrogens.	3.23	1	0	quaternary ammonium ion	EC 3.1.1.8 (cholinesterase) inhibitor
diatrizoic acid Diatrizoate: A commonly used x-ray contrast medium. As DIATRIZOATE MEGLUMINE and as Diatrizoate sodium, it is used for gastrointestinal studies, angiography, and urography.. amidotrizoic acid : A member of the class of benzoic acids that is benzoic acid having iodo substituents at the 2-, 4- and 6-positions and acetamido substituents at the 3- and 5-positions. It is used, mainly as its N-methylglucamine and sodium salts, as an X-ray contrast medium in gastrointestinal studies, angiography, and urography.	3.79	3	0	acetamides; benzoic acids; organoiodine compound	environmental contaminant; radioopaque medium; xenobiotic
amifostine anhydrous Amifostine: A phosphorothioate proposed as a radiation-protective agent. It causes splenic vasodilation and may block autonomic ganglia.. amifostine : An organic thiophosphate that is the S-phospho derivative of 2-[(3-aminopropyl)amino]ethanethiol. A prodrug for the free thiol, WR-1065, which is used as a cytoprotectant in cancer chemotherapy and radiotherapy.	3.56	2	0	diamine; organic thiophosphate	antioxidant; prodrug; radiation protective agent
aminoglutethimide Aminoglutethimide: An aromatase inhibitor that is used in the treatment of advanced BREAST CANCER.. aminoglutethimide : A dicarboximide that is a six-membered cyclic compound having ethyl and 4-aminophenyl substituents at the 3-position.	2.02	1	0	dicarboximide; piperidones; substituted aniline	adrenergic agent; anticonvulsant; antineoplastic agent; EC 1.14.14.14 (aromatase) inhibitor
p-aminohippuric acid p-Aminohippuric Acid: The glycine amide of 4-aminobenzoic acid. Its sodium salt is used as a diagnostic aid to measure effective renal plasma flow (ERPF) and excretory capacity.. p-aminohippurate : A hippurate that is the conjugate base of p-aminohippuric acid, arising from deprotonation of the carboxy group.. p-aminohippuric acid : An N-acylglycine that is the 4-amino derivative of hippuric acid; used as a diagnostic agent in the measurement of renal plasma flow.	3.23	1	0	N-acylglycine	Daphnia magna metabolite
theophylline [no description available]	4.03	4	0	dimethylxanthine	adenosine receptor antagonist; anti-asthmatic drug; anti-inflammatory agent; bronchodilator agent; drug metabolite; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; fungal metabolite; human blood serum metabolite; immunomodulator; muscle relaxant; vasodilator agent
amiodarone Amiodarone: An antianginal and class III antiarrhythmic drug. It increases the duration of ventricular and atrial muscle action by inhibiting POTASSIUM CHANNELS and VOLTAGE-GATED SODIUM CHANNELS. There is a resulting decrease in heart rate and in vascular resistance.. amiodarone : A member of the class of 1-benzofurans that is 1-benzofuran substituted by a butyl group at position 2 and a 4-[2-(diethylamino)ethoxy]-3,5-diiodobenzoyl group at position 3. It is a cardiovascular drug used for the treatment of cardiac dysrhythmias.	3.84	3	0	1-benzofurans; aromatic ketone; organoiodine compound; tertiary amino compound	cardiovascular drug
amitriptyline Amitriptyline: Tricyclic antidepressant with anticholinergic and sedative properties. It appears to prevent the re-uptake of norepinephrine and serotonin at nerve terminals, thus potentiating the action of these neurotransmitters. Amitriptyline also appears to antagonize cholinergic and alpha-1 adrenergic responses to bioactive amines.. amitriptyline : An organic tricyclic compound that is 10,11-dihydro-5H-dibenzo[a,d][7]annulene substituted by a 3-(dimethylamino)propylidene group at position 5.	3.84	3	0	carbotricyclic compound; tertiary amine	adrenergic uptake inhibitor; antidepressant; environmental contaminant; tropomyosin-related kinase B receptor agonist; xenobiotic
amlexanox amlexanox: SRA-A antagonist;structure given in first source. amlexanox : A pyridochromene-derived monocarboxylic acid having an amino substituent at the 2-position, an oxo substituent at the 5-position and an isopropyl substituent at the 7-position.	2.02	1	0	monocarboxylic acid; pyridochromene	anti-allergic agent; anti-ulcer drug; non-steroidal anti-inflammatory drug
amlodipine Amlodipine: A long-acting dihydropyridine calcium channel blocker. It is effective in the treatment of ANGINA PECTORIS and HYPERTENSION.. amlodipine : A fully substituted dialkyl 1,4-dihydropyridine-3,5-dicarboxylate derivative, which is used for the treatment of hypertension, chronic stable angina and confirmed or suspected vasospastic angina.	3.84	3	0	dihydropyridine; ethyl ester; methyl ester; monochlorobenzenes; primary amino compound	antihypertensive agent; calcium channel blocker; vasodilator agent
amobarbital Amobarbital: A barbiturate with hypnotic and sedative properties (but not antianxiety). Adverse effects are mainly a consequence of dose-related CNS depression and the risk of dependence with continued use is high. (From Martindale, The Extra Pharmacopoeia, 30th ed, p565). amobarbital : A member of the class of barbiturates that is pyrimidine-2,4,6(1H,3H,5H)-trione substituted by a 3-methylbutyl and an ethyl group at position 5. Amobarbital has been shown to exhibit sedative and hypnotic properties.	7.9	26	1	barbiturates
amoxapine Amoxapine: The N-demethylated derivative of the antipsychotic agent LOXAPINE that works by blocking the reuptake of norepinephrine, serotonin, or both; it also blocks dopamine receptors. Amoxapine is used for the treatment of depression.. amoxapine : A dibenzooxazepine compound having a chloro substituent at the 2-position and a piperazin-1-yl group at the 11-position.	3.56	2	0	dibenzooxazepine	adrenergic uptake inhibitor; antidepressant; dopaminergic antagonist; geroprotector; serotonin uptake inhibitor
amsacrine Amsacrine: An aminoacridine derivative that intercalates into DNA and is used as an antineoplastic agent.. amsacrine : A sulfonamide that is N-phenylmethanesulfonamide substituted by a methoxy group at position 3 and an acridin-9-ylamino group at position 4. It exhibits antineoplastic activity.	2.04	1	0	acridines; aromatic ether; sulfonamide	antineoplastic agent; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor
anastrozole [no description available]	3.56	2	0	nitrile; triazoles	antineoplastic agent; EC 1.14.14.14 (aromatase) inhibitor
antipyrine Antipyrine: An analgesic and antipyretic that has been given by mouth and as ear drops. Antipyrine is often used in testing the effects of other drugs or diseases on drug-metabolizing enzymes in the liver. (From Martindale, The Extra Pharmacopoeia, 30th ed, p29). antipyrine : A pyrazolone derivative that is 1,2-dihydropyrazol-3-one substituted with methyl groups at N-1 and C-5 and with a phenyl group at N-2.	2.91	4	0	pyrazolone	antipyretic; cyclooxygenase 3 inhibitor; environmental contaminant; non-narcotic analgesic; non-steroidal anti-inflammatory drug; xenobiotic
apraclonidine apraclonidine: relieves postoperative intraocular pressure following trabeculoplasty; RN given refers to parent cpd. apraclonidine : An imidazoline that is 2-amino 4,5-dihydro-1H-imidazoline in which one of the exocyclic amino hydrogens has been replaced by a 4-amino-2,6-dichlorophenyl group.	2.02	1	0	dichlorobenzene; guanidines; imidazolines	alpha-adrenergic agonist; antiglaucoma drug; beta-adrenergic agonist; diagnostic agent; ophthalmology drug
aspirin Aspirin: The prototypical analgesic used in the treatment of mild to moderate pain. It has anti-inflammatory and antipyretic properties and acts as an inhibitor of cyclooxygenase which results in the inhibition of the biosynthesis of prostaglandins. Aspirin also inhibits platelet aggregation and is used in the prevention of arterial and venous thrombosis. (From Martindale, The Extra Pharmacopoeia, 30th ed, p5). acetylsalicylate : A benzoate that is the conjugate base of acetylsalicylic acid, arising from deprotonation of the carboxy group.. acetylsalicylic acid : A member of the class of benzoic acids that is salicylic acid in which the hydrogen that is attached to the phenolic hydroxy group has been replaced by an acetoxy group. A non-steroidal anti-inflammatory drug with cyclooxygenase inhibitor activity.	3.84	3	0	benzoic acids; phenyl acetates; salicylates	anticoagulant; antipyretic; cyclooxygenase 1 inhibitor; cyclooxygenase 2 inhibitor; drug allergen; EC 1.1.1.188 (prostaglandin-F synthase) inhibitor; geroprotector; non-narcotic analgesic; non-steroidal anti-inflammatory drug; plant activator; platelet aggregation inhibitor; prostaglandin antagonist; teratogenic agent
astemizole Astemizole: Antihistamine drug now withdrawn from the market in many countries because of rare but potentially fatal side effects.. astemizole : A piperidine compound having a 2-(4-methoxyphenyl)ethyl group at the 1-position and an N-[(4-fluorobenzyl)benzimidazol-2-yl]amino group at the 4-position.	2.02	1	0	benzimidazoles; piperidines	anti-allergic agent; anticoronaviral agent; H1-receptor antagonist
atenolol Atenolol: A cardioselective beta-1 adrenergic blocker possessing properties and potency similar to PROPRANOLOL, but without a negative inotropic effect.. atenolol : An ethanolamine compound having a (4-carbamoylmethylphenoxy)methyl group at the 1-position and an N-isopropyl substituent.	3.84	3	0	ethanolamines; monocarboxylic acid amide; propanolamine	anti-arrhythmia drug; antihypertensive agent; beta-adrenergic antagonist; environmental contaminant; sympatholytic agent; xenobiotic
azathioprine Azathioprine: An immunosuppressive agent used in combination with cyclophosphamide and hydroxychloroquine in the treatment of rheumatoid arthritis. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), this substance has been listed as a known carcinogen. (Merck Index, 11th ed). azathioprine : A thiopurine that is 6-mercaptopurine in which the mercapto hydrogen is replaced by a 1-methyl-4-nitroimidazol-5-yl group. It is a prodrug for mercaptopurine and is used as an immunosuppressant, prescribed for the treatment of inflammatory conditions and after organ transplantation and also for treatment of Crohn's didease and MS.	3.56	2	0	aryl sulfide; C-nitro compound; imidazoles; thiopurine	antimetabolite; antineoplastic agent; carcinogenic agent; DNA synthesis inhibitor; hepatotoxic agent; immunosuppressive agent; prodrug
azelaic acid nonanedioic acid : An alpha,omega-dicarboxylic acid that is heptane substituted at positions 1 and 7 by carboxy groups.	2.02	1	0	alpha,omega-dicarboxylic acid; dicarboxylic fatty acid	antibacterial agent; antineoplastic agent; dermatologic drug; plant metabolite
azelastine azelastine: azeptin is azelastine hydrochloride; structure; eye drop formulation effective in relieving symptoms of allergic conjunctivitis; do not confuse with 5-loxin which is an extract of Boswellia. azelastine : A phthalazine compound having an oxo substituent at the 1-position, a 1-methylazepan-4-yl group at the 2-position and a 4-chlorobenzyl substituent at the 4-position.	2.43	2	0	monochlorobenzenes; phthalazines; tertiary amino compound	anti-allergic agent; anti-asthmatic drug; bronchodilator agent; EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor; H1-receptor antagonist; platelet aggregation inhibitor
baclofen [no description available]	4	4	0	amino acid zwitterion; gamma-amino acid; monocarboxylic acid; monochlorobenzenes; primary amino compound	central nervous system depressant; GABA agonist; muscle relaxant
barbital 5,5-diethylbarbituric acid : A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at C-5 by two ethyl groups. Formerly used as a hypnotic (sleeping aid).	2.36	2	0	barbiturates	drug allergen
bemegride Bemegride: A CNS stimulant that is used to induce convulsions in experimental animals. It has also been used as a respiratory stimulant and in the treatment of barbiturate overdose.	3.96	4	0	piperidones
bendazac bendazac : A monocarboxylic acid that is glycolic acid in which the hydrogen attached to the 2-hydroxy group is replaced by a 1-benzyl-1H-indazol-3-yl group. Although it has anti-inflammatory, antinecrotic, choleretic and antilipidaemic properties and has been used for the treatment of various inflammatory skin disorders, its principal effect is to inhibit the denaturation of proteins. Its lysine salt is used in the management of cataracts.	3.23	1	0	indazoles; monocarboxylic acid	non-steroidal anti-inflammatory drug; radical scavenger
bendroflumethiazide Bendroflumethiazide: A thiazide diuretic with actions and uses similar to those of HYDROCHLOROTHIAZIDE. It has been used in the treatment of familial hyperkalemia, hypertension, edema, and urinary tract disorders. (From Martindale, The Extra Pharmacopoeia, 30th ed, p810). bendroflumethiazide : A sulfonamide consisting of 7-sulfamoyl-3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide in which the hydrogen at position 6 is substituted by a trifluoromethyl group and that at position 3 is substituted by a benzyl group.	3.23	1	0	benzothiadiazine; sulfonamide	antihypertensive agent; diuretic
benzbromarone Benzbromarone: Uricosuric that acts by increasing uric acid clearance. It is used in the treatment of gout.. benzbromarone : 1-Benzofuran substituted at C-2 and C-3 by an ethyl group and a 3,5-dibromo-4-hydroxybenzoyl group respectively. An inhibitor of CYP2C9, it is used as an anti-gout medication.	3.23	1	0	1-benzofurans; aromatic ketone	uricosuric drug
bepridil Bepridil: A long-acting calcium-blocking agent with significant anti-anginal activity. The drug produces significant coronary vasodilation and modest peripheral effects. It has antihypertensive and selective anti-arrhythmia activities and acts as a calmodulin antagonist.. bepridil : A tertiary amine in which the substituents on nitrogen are benzyl, phenyl and 3-(2-methylpropoxy)-2-(pyrrolidin-1-yl)propyl.	2.02	1	0	pyrrolidines; tertiary amine	anti-arrhythmia drug; antihypertensive agent; calcium channel blocker; vasodilator agent
betaxolol [no description available]	3.84	3	0	propanolamine	antihypertensive agent; beta-adrenergic antagonist; sympatholytic agent
bethanechol Bethanechol: A slowly hydrolyzing muscarinic agonist with no nicotinic effects. Bethanechol is generally used to increase smooth muscle tone, as in the GI tract following abdominal surgery or in urinary retention in the absence of obstruction. It may cause hypotension, HEART RATE changes, and BRONCHIAL SPASM.. bethanechol : The carbamic acid ester of 2-methylcholine. A slowly hydrolysed muscarinic agonist with no nicotinic effects, it is used as its chloride salt to increase smooth muscle tone, as in the gastrointestinal tract following abdominal surgery, treatment of gastro-oesophageal reflux disease, and as an alternative to catheterisation in the treatment of non-obstructive urinary retention.	3.23	1	0	carbamate ester; quaternary ammonium ion	muscarinic agonist
bevantolol bevantolol: structure given in first source. bevantolol : A propanolamine that is 3-aminopropane-1,2-diol in which the hydrogen of the primary hydroxy group is substituted by 3-methylphenyl and one of the hydrogens attached to the nitrogen is substituted by 2-(3,4-dimethoxyphenyl)ethyl. A beta1 adrenoceptor antagonist, it has been shown to be as effective as other beta-blockers for the treatment of angina pectoris and hypertension.	2.04	1	0	propanolamine	anti-arrhythmia drug; antihypertensive agent; beta-adrenergic antagonist; calcium channel blocker
bicalutamide bicalutamide: approved for treatment of advanced prostate cancer. N-[4-cyano-3-(trifluoromethyl)phenyl]-3-[(4-fluorophenyl)sulfonyl]-2-hydroxy-2-methylpropanamide : A member of the class of (trifluoromethyl)benzenes that is 4-amino-2-(trifluoromethyl)benzonitrile in which one of the amino hydrogens is substituted by a 3-[(4-fluorophenyl)sulfonyl]-2-hydroxy-2-methylpropanoyl group.. bicalutamide : A racemate comprising of equal amounts of (R)-bicalutamide and (S)-bicalutamide. It is an oral non-steroidal antiandrogen used in the treatment of prostate cancer and hirsutism.	3.56	2	0	(trifluoromethyl)benzenes; monocarboxylic acid amide; monofluorobenzenes; nitrile; sulfone; tertiary alcohol
biperiden Biperiden: A muscarinic antagonist that has effects in both the central and peripheral nervous systems. It has been used in the treatment of arteriosclerotic, idiopathic, and postencephalitic parkinsonism. It has also been used to alleviate extrapyramidal symptoms induced by phenothiazine derivatives and reserpine.. biperiden : A member of the class of piperidines that is N-propylpiperidine in which the methyl hydrogens have been replaced by hydroxy, phenyl, and 5-norbornen-2-yl groups. A muscarinic antagonist affecting both the central and peripheral nervous systems, it is used in the treatment of all forms of Parkinson's disease.	3.58	2	0	piperidines; tertiary alcohol; tertiary amino compound	antidote to sarin poisoning; antidyskinesia agent; antiparkinson drug; muscarinic antagonist; parasympatholytic
bisacodyl Bisacodyl: A diphenylmethane stimulant laxative used for the treatment of CONSTIPATION and for bowel evacuation. (From Martindale, The Extra Pharmacopoeia, 30th ed, p871)	3.23	1	0	diarylmethane
bisoprolol Bisoprolol: A cardioselective beta-1 adrenergic blocker. It is effective in the management of HYPERTENSION and ANGINA PECTORIS.	3.84	3	0	secondary alcohol; secondary amine	anti-arrhythmia drug; antihypertensive agent; beta-adrenergic antagonist; sympatholytic agent
brimonidine [no description available]	2.02	1	0	imidazoles; quinoxaline derivative; secondary amine	adrenergic agonist; alpha-adrenergic agonist; antihypertensive agent
bromazepam Bromazepam: One of the BENZODIAZEPINES that is used in the treatment of ANXIETY DISORDERS.	2.04	1	0	organic molecular entity
bromopride bromopride: RN given refers to parent cpd; structure	2.04	1	0	benzamides
brotizolam brotizolam: structure	2.4	2	0	organic molecular entity
buflomedil buflomedil: RN given refers to parent cpd; synonym LL 1656 refers to HCl; structure	2.04	1	0	aromatic ketone
bumetanide [no description available]	3.84	3	0	amino acid; benzoic acids; sulfonamide	diuretic; EC 3.6.3.49 (channel-conductance-controlling ATPase) inhibitor
bunazosin bunazosin: structure	2.04	1	0	quinazolines
bupivacaine Bupivacaine: A widely used local anesthetic agent.. 1-butyl-N-(2,6-dimethylphenyl)piperidine-2-carboxamide : A piperidinecarboxamide obtained by formal condensation of the carboxy group of N-butylpipecolic acid with the amino group of 2,6-dimethylaniline.. bupivacaine : A racemate composed of equimolar amounts of dextrobupivacaine and levobupivacaine. Used (in the form of its hydrochloride hydrate) as a local anaesthetic.	2.68	3	0	aromatic amide; piperidinecarboxamide; tertiary amino compound
buspirone Buspirone: An anxiolytic agent and serotonin receptor agonist belonging to the azaspirodecanedione class of compounds. Its structure is unrelated to those of the BENZODIAZAPINES, but it has an efficacy comparable to DIAZEPAM.. buspirone : An azaspiro compound that is 8-azaspiro[4.5]decane-7,9-dione substituted at the nitrogen atom by a 4-(piperazin-1-yl)butyl group which in turn is substituted by a pyrimidin-2-yl group at the N(4) position.	3.56	2	0	azaspiro compound; N-alkylpiperazine; N-arylpiperazine; organic heteropolycyclic compound; piperidones; pyrimidines	anxiolytic drug; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; sedative; serotonergic agonist
busulfan [no description available]	3.84	3	0	methanesulfonate ester	alkylating agent; antineoplastic agent; carcinogenic agent; insect sterilant; teratogenic agent
secbutabarbital secbutabarbital: Butabarbital (a synonym for Secbutabarbital) should be distinguished from Butobarbital	3.77	3	0	barbiturates
butalbital butalbital: management of butalbital withdrawal can be simplified by using a phenobarbital-loading protocol; RN given refers to parent cpd. butalbital : A member of the class of barbiturates that is barbituric acid in which the hydrogens at position 5 are substituted by an allyl group and an isobutyl group. Frequently combined with other medicines, such as aspirin, paracetamol and codeine, it is used for treatment of pain and headache.	2.36	2	0	barbiturates	analgesic; sedative
butenafine butenafine: studied on experimental dermatophytosis. butenafine : Trimethylamine in which hydrogen atoms attached to different methyl groups are substituted by 1-naphthyl and 4-tert-butylphenyl groups. It is an inhibitor of squalene epoxidase, an enzyme responsible for the creation of sterols needed in fungal cell membranes, and is used as its hydrochloride salt for treatment of dermatological fungal infections.	2.02	1	0	naphthalenes; tertiary amine	antifungal drug; EC 1.14.13.132 (squalene monooxygenase) inhibitor
caffeine [no description available]	3.58	2	0	purine alkaloid; trimethylxanthine	adenosine A2A receptor antagonist; adenosine receptor antagonist; adjuvant; central nervous system stimulant; diuretic; EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; environmental contaminant; food additive; fungal metabolite; geroprotector; human blood serum metabolite; mouse metabolite; mutagen; plant metabolite; psychotropic drug; ryanodine receptor agonist; xenobiotic
verapamil Verapamil: A calcium channel blocker that is a class IV anti-arrhythmia agent.. verapamil : A racemate comprising equimolar amounts of dexverapamil and (S)-verapamil. An L-type calcium channel blocker of the phenylalkylamine class, it is used (particularly as the hydrochloride salt) in the treatment of hypertension, angina pectoris and cardiac arrhythmia, and as a preventive medication for migraine.. 2-(3,4-dimethoxyphenyl)-5-{[2-(3,4-dimethoxyphenyl)ethyl](methyl)amino}-2-(propan-2-yl)pentanenitrile : A tertiary amino compound that is 3,4-dimethoxyphenylethylamine in which the hydrogens attached to the nitrogen are replaced by a methyl group and a 4-cyano-4-(3,4-dimethoxyphenyl)-5-methylhexyl group.	3.84	3	0	aromatic ether; nitrile; polyether; tertiary amino compound
metrizoate Metrizoic Acid: A diagnostic radiopaque that usually occurs as the sodium salt.	2.04	1	0	monocarboxylic acid	radioopaque medium
candesartan candesartan: a nonpeptide angiotensin II receptor antagonist. candesartan : A benzimidazolecarboxylic acid that is 1H-benzimidazole-7-carboxylic acid substituted by an ethoxy group at position 2 and a ({2'-(1H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl}methyl) group at position 1. It is a angiotensin receptor antagonist used for the treatment of hypertension.	3.23	1	0	benzimidazolecarboxylic acid; biphenylyltetrazole	angiotensin receptor antagonist; antihypertensive agent; environmental contaminant; xenobiotic
carbamazepine Carbamazepine: A dibenzazepine that acts as a sodium channel blocker. It is used as an anticonvulsant for the treatment of grand mal and psychomotor or focal SEIZURES. It may also be used in the management of BIPOLAR DISORDER, and has analgesic properties.. carbamazepine : A dibenzoazepine that is 5H-dibenzo[b,f]azepine carrying a carbamoyl substituent at the azepine nitrogen, used as an anticonvulsant.	5.43	4	0	dibenzoazepine; ureas	analgesic; anticonvulsant; antimanic drug; drug allergen; EC 3.5.1.98 (histone deacetylase) inhibitor; environmental contaminant; glutamate transporter activator; mitogen; non-narcotic analgesic; sodium channel blocker; xenobiotic
carbinoxamine carbinoxamine: Note: tradenames that start with Histex refer to more than one drug. carbinoxamine : An organochlorine compound that is 2-(4-chlorobenzyl)pyridine in which one of the benzylic hydrogens is substituted by 2-(dimethylamino)ethoxy group. It is an ethanolamine-type antihistamine, used as its maleate salt for treating hay fever, as well as mild cases of Parkinson's disease.	3.23	1	0	monochlorobenzenes; pyridines; tertiary amino compound	anti-allergic agent; antiparkinson drug; H1-receptor antagonist; muscarinic antagonist
carisoprodol Carisoprodol: A centrally acting skeletal muscle relaxant whose mechanism of action is not completely understood but may be related to its sedative actions. It is used as an adjunct in the symptomatic treatment of musculoskeletal conditions associated with painful muscle spasm. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1202). carisoprodol : A carbamate ester that is the mono-N-isopropyl derivative of meprobamate (which is a significant metabolite). Carisoprodol interrupts neuronal communication within the reticular formation and spinal cord, resulting in sedation and alteration in pain perception. It is used as a muscle relaxant in the symptomatic treatment of musculoskeletal conditions associated with painful muscle spasm.	3.23	1	0	carbamate ester	muscle relaxant
carmustine Carmustine: A cell-cycle phase nonspecific alkylating antineoplastic agent. It is used in the treatment of brain tumors and various other malignant neoplasms. (From Martindale, The Extra Pharmacopoeia, 30th ed, p462) This substance may reasonably be anticipated to be a carcinogen according to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985). (From Merck Index, 11th ed). carmustine : A member of the class of N-nitrosoureas that is 1,3-bis(2-chloroethyl)urea in which one of the nitrogens is substituted by a nitroso group.	2.43	2	0	N-nitrosoureas; organochlorine compound	alkylating agent; antineoplastic agent
carprofen carprofen: RN given refers to cpd without isomeric designation. carprofen : Propanoic acid in which one of the methylene hydrogens is substituted by a 6-chloro-9H-carbazol-2-yl group. A non-steroidal anti-inflammatory drug, it is no longer used in human medicine but is still used for treatment of arthritis in elderly dogs.	2.01	1	0	carbazoles; organochlorine compound	EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; non-steroidal anti-inflammatory drug; photosensitizing agent
carteolol Carteolol: A beta-adrenergic antagonist used as an anti-arrhythmia agent, an anti-angina agent, an antihypertensive agent, and an antiglaucoma agent.	2.02	1	0	quinolone; secondary alcohol	anti-arrhythmia drug; antiglaucoma drug; antihypertensive agent; beta-adrenergic antagonist; sympatholytic agent
carvedilol [no description available]	3.84	3	0	carbazoles; secondary alcohol; secondary amino compound	alpha-adrenergic antagonist; antihypertensive agent; beta-adrenergic antagonist; cardiovascular drug; vasodilator agent
celecoxib [no description available]	3.23	1	0	organofluorine compound; pyrazoles; sulfonamide; toluenes	cyclooxygenase 2 inhibitor; geroprotector; non-narcotic analgesic; non-steroidal anti-inflammatory drug
cetirizine Cetirizine: A potent second-generation histamine H1 antagonist that is effective in the treatment of allergic rhinitis, chronic urticaria, and pollen-induced asthma. Unlike many traditional antihistamines, it does not cause drowsiness or anticholinergic side effects.. cetirizine : A member of the class of piperazines that is piperazine in which the hydrogens attached to nitrogen are replaced by a (4-chlorophenyl)(phenyl)methyl and a 2-(carboxymethoxy)ethyl group respectively.	3.56	2	0	ether; monocarboxylic acid; monochlorobenzenes; piperazines	anti-allergic agent; environmental contaminant; H1-receptor antagonist; xenobiotic
chloral hydrate [no description available]	4.57	8	0	aldehyde hydrate; ethanediol; organochlorine compound	general anaesthetic; mouse metabolite; sedative; xenobiotic
chlorambucil Chlorambucil: A nitrogen mustard alkylating agent used as antineoplastic for chronic lymphocytic leukemia, Hodgkin's disease, and others. Although it is less toxic than most other nitrogen mustards, it has been listed as a known carcinogen in the Fourth Annual Report on Carcinogens (NTP 85-002, 1985). (Merck Index, 11th ed). chlorambucil : A monocarboxylic acid that is butanoic acid substituted at position 4 by a 4-[bis(2-chloroethyl)amino]phenyl group. A chemotherapy drug that can be used in combination with the antibody obinutuzumab for the treatment of chronic lymphocytic leukemia.	3.58	2	0	aromatic amine; monocarboxylic acid; nitrogen mustard; organochlorine compound; tertiary amino compound	alkylating agent; antineoplastic agent; carcinogenic agent; drug allergen; immunosuppressive agent
chlorcyclizine chlorcyclizine: was heading 1964-94 (Prov 1964-73); CHLOROCYCLIZINE & HISTACHLORAZINE were see CHLORCYCLIZINE 1977-94; use PIPERAZINES to search CHLORCYCLIZINE 1966-94; histamine H1-blocker used both orally and topically in allergies and also for the prevention of motion sickness	3.23	1	0	diarylmethane
chlordiazepoxide Chlordiazepoxide: An anxiolytic benzodiazepine derivative with anticonvulsant, sedative, and amnesic properties. It has also been used in the symptomatic treatment of alcohol withdrawal.. chlordiazepoxide : A benzodiazepine that is 3H-1,4-benzodiazepine 4-oxide substituted by a chloro group at position 7, a phenyl group at position 5 and a methylamino group at position 2.	3.79	3	0	benzodiazepine
chlormezanone Chlormezanone: A non-benzodiazepine that is used in the management of anxiety. It has been suggested for use in the treatment of muscle spasm.. chlormezanone : A 1,3-thiazine that is 1,3-thiazinan-4-one S,S-dioxide in which a hydrogen at position 2 is substituted by a 4-chlorophenyl group and the hydrogen attached to the nitrogen is substituted by methyl. A non-benzodiazepine muscle relaxant, it was used in the management of anxiety and in the treatment of muscle spasms until being discontinued worldwide by its manufacturer in 1996, due to rare but serious cutaneous reactions.	3.56	2	0	1,3-thiazine; lactam; monochlorobenzenes; sulfone	antipsychotic agent; anxiolytic drug; muscle relaxant
chloroquine Chloroquine: The prototypical antimalarial agent with a mechanism that is not well understood. It has also been used to treat rheumatoid arthritis, systemic lupus erythematosus, and in the systemic therapy of amebic liver abscesses.. chloroquine : An aminoquinoline that is quinoline which is substituted at position 4 by a [5-(diethylamino)pentan-2-yl]amino group at at position 7 by chlorine. It is used for the treatment of malaria, hepatic amoebiasis, lupus erythematosus, light-sensitive skin eruptions, and rheumatoid arthritis.	3.58	2	0	aminoquinoline; organochlorine compound; secondary amino compound; tertiary amino compound	anticoronaviral agent; antimalarial; antirheumatic drug; autophagy inhibitor; dermatologic drug
chlorothiazide Chlorothiazide: A thiazide diuretic with actions and uses similar to those of HYDROCHLOROTHIAZIDE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p812). thiazide : Heterocyclic compound with sulfur and nitrogen in the ring.. chlorothiazide : 4H-1,2,4-benzothiadiazine 1,1-dioxide in which the hydrogen at position is substituted by chlorine and that at position 7 is substituted by a sulfonamide group. A diuretic, it is used for treatment of oedema and hypertension.	3.23	1	0	benzothiadiazine	antihypertensive agent; diuretic
chlorpheniramine Chlorpheniramine: A histamine H1 antagonist used in allergic reactions, hay fever, rhinitis, urticaria, and asthma. It has also been used in veterinary applications. One of the most widely used of the classical antihistaminics, it generally causes less drowsiness and sedation than PROMETHAZINE.. chlorphenamine : A tertiary amino compound that is propylamine which is substituted at position 3 by a pyridin-2-yl group and a p-chlorophenyl group and in which the hydrogens attached to the nitrogen are replaced by methyl groups. A histamine H1 antagonist, it is used to relieve the symptoms of hay fever, rhinitis, urticaria, and asthma.	3.58	2	0	monochlorobenzenes; pyridines; tertiary amino compound	anti-allergic agent; antidepressant; antipruritic drug; H1-receptor antagonist; histamine antagonist; serotonin uptake inhibitor
chlorpromazine Chlorpromazine: The prototypical phenothiazine antipsychotic drug. Like the other drugs in this class chlorpromazine's antipsychotic actions are thought to be due to long-term adaptation by the brain to blocking DOPAMINE RECEPTORS. Chlorpromazine has several other actions and therapeutic uses, including as an antiemetic and in the treatment of intractable hiccup.. chlorpromazine : A substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropanamine moiety.	4.66	9	0	organochlorine compound; phenothiazines; tertiary amine	anticoronaviral agent; antiemetic; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; phenothiazine antipsychotic drug
chlorpropamide Chlorpropamide: A sulfonylurea hypoglycemic agent used in the treatment of non-insulin-dependent diabetes mellitus not responding to dietary modification. (From Martindale, The Extra Pharmacopoeia, 30th ed, p277). chlorpropamide : An N-sulfonylurea that is urea in which a hydrogen attached to one of the nitrogens is substituted by 4-chlorobenzenesulfonyl group and a hydrogen attached to the other nitrogen is substituted by propyl group. Chlorpropamide is a hypoglycaemic agent used in the treatment of type 2 (non-insulin-dependent) diabetes mellitus not responding to dietary modification.	3.58	2	0	monochlorobenzenes; N-sulfonylurea	hypoglycemic agent; insulin secretagogue
chlorpyrifos Chlorpyrifos: An organothiophosphate cholinesterase inhibitor that is used as an insecticide and as an acaricide.. chlorpyrifos : An organic thiophosphate that is O,O-diethyl hydrogen phosphorothioate in which the hydrogen of the hydroxy group has been replaced by a 3,5,6-trichloropyridin-2-yl group.	2	1	0	chloropyridine; organic thiophosphate	acaricide; agrochemical; EC 3.1.1.7 (acetylcholinesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; environmental contaminant; insecticide; xenobiotic
chlorthalidone Chlorthalidone: A benzenesulfonamide-phthalimidine that tautomerizes to a BENZOPHENONES form. It is considered a thiazide-like diuretic.	3.58	2	0	isoindoles; monochlorobenzenes; sulfonamide
chlorzoxazone Chlorzoxazone: A centrally acting central muscle relaxant with sedative properties. It is claimed to inhibit muscle spasm by exerting an effect primarily at the level of the spinal cord and subcortical areas of the brain. (From Martindale, The Extra Pharmacopoea, 30th ed, p1202). chlorzoxazone : A member of the class of 1,3-benzoxazoles that is 1,3-benzoxazol-2-ol in which the hydrogen atom at position 5 is substituted by chlorine. A centrally acting muscle relaxant with sedative properties, it is used for the symptomatic treatment of painful muscle spasm.	3.23	1	0	1,3-benzoxazoles; heteroaryl hydroxy compound; organochlorine compound	muscle relaxant; sedative
cifenline [no description available]	2.04	1	0	diarylmethane
ciclopirox [no description available]	2.02	1	0	cyclic hydroxamic acid; hydroxypyridone antifungal drug; pyridone	antibacterial agent; antiseborrheic
cilostazol [no description available]	3.23	1	0	lactam; tetrazoles	anticoagulant; bronchodilator agent; EC 3.1.4.17 (3',5'-cyclic-nucleotide phosphodiesterase) inhibitor; fibrin modulating drug; neuroprotective agent; platelet aggregation inhibitor; vasodilator agent
cimetidine Cimetidine: A histamine congener, it competitively inhibits HISTAMINE binding to HISTAMINE H2 RECEPTORS. Cimetidine has a range of pharmacological actions. It inhibits GASTRIC ACID secretion, as well as PEPSIN and GASTRIN output.. cimetidine : A member of the class of guanidines that consists of guanidine carrying a methyl substituent at position 1, a cyano group at position 2 and a 2-{[(5-methyl-1H-imidazol-4-yl)methyl]sulfanyl}ethyl group at position 3. It is a H2-receptor antagonist that inhibits the production of acid in stomach.	3.58	2	0	aliphatic sulfide; guanidines; imidazoles; nitrile	adjuvant; analgesic; anti-ulcer drug; H2-receptor antagonist; P450 inhibitor
cinoxacin Cinoxacin: Synthetic antimicrobial related to OXOLINIC ACID and NALIDIXIC ACID and used in URINARY TRACT INFECTIONS.. cinoxacin : A member of the class of cinnolines that is 6,7-methylenedioxycinnolin-4(1H)-one bearing an ethyl group at position 1 and a carboxylic acid group at position 3. An analogue of oxolinic acid, it has similar antibacterial actions. It was formerly used for the treatment of urinary tract infections.	2.02	1	0	cinnolines; oxacycle; oxo carboxylic acid	antibacterial drug; antiinfective agent
ciprofloxacin Ciprofloxacin: A broad-spectrum antimicrobial carboxyfluoroquinoline.. ciprofloxacin : A quinolone that is quinolin-4(1H)-one bearing cyclopropyl, carboxylic acid, fluoro and piperazin-1-yl substituents at positions 1, 3, 6 and 7, respectively.	3.84	3	0	aminoquinoline; cyclopropanes; fluoroquinolone antibiotic; N-arylpiperazine; quinolinemonocarboxylic acid; quinolone antibiotic; quinolone; zwitterion	antibacterial drug; antiinfective agent; antimicrobial agent; DNA synthesis inhibitor; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; environmental contaminant; topoisomerase IV inhibitor; xenobiotic
cisapride Cisapride: A substituted benzamide used for its prokinetic properties. It is used in the management of gastroesophageal reflux disease, functional dyspepsia, and other disorders associated with impaired gastrointestinal motility. (Martindale The Extra Pharmacopoeia, 31st ed). cisapride : The amide resulting from formal condensation of 4-amino-5-chloro-2-methoxybenzoic acid with cis-1-[3-(4-fluorophenoxy)propyl]-3-methoxypiperidin-4-amine. It has been used (as its monohydrate or as its tartrate) for the treatment of gastro-oesophageal reflux disease and for non-ulcer dyspepsia, but its propensity to cause cardiac arrhythmias resulted in its complete withdrawal from many countries, including the U.K., and restrictions on its use elsewhere.	2.02	1	0	benzamides
citalopram Citalopram: A furancarbonitrile that is one of the serotonin uptake inhibitors used as an antidepressant. The drug is also effective in reducing ethanol uptake in alcoholics and is used in depressed patients who also suffer from TARDIVE DYSKINESIA in preference to tricyclic antidepressants, which aggravate dyskinesia.. citalopram : A racemate comprising equimolar amounts of (R)-citalopram and its enantiomer, escitalopram. It is used as an antidepressant, although only escitalopram is active.. 1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-2-benzofuran-5-carbonitrile : A nitrile that is 1,3-dihydro-2-benzofuran-5-carbonitrile in which one of the hydrogens at position 1 is replaced by a p-fluorophenyl group, while the other is replaced by a 3-(dimethylamino)propyl group.	3.58	2	0	2-benzofurans; cyclic ether; nitrile; organofluorine compound; tertiary amino compound
clofazimine Clofazimine: A fat-soluble riminophenazine dye used for the treatment of leprosy. It has been used investigationally in combination with other antimycobacterial drugs to treat Mycobacterium avium infections in AIDS patients. Clofazimine also has a marked anti-inflammatory effect and is given to control the leprosy reaction, erythema nodosum leprosum. (From AMA Drug Evaluations Annual, 1993, p1619). clofazimine : 3-Isopropylimino-3,5-dihydro-phenazine in which the hydrogen at position 5 is substituted substituted by a 4-chlorophenyl group, and that at position 2 is substituted by a (4-chlorophenyl)amino group. A dark red crystalline solid, clofazimine is an antimycobacterial and is one of the main drugs used for the treatment of multi-bacillary leprosy. However, it can cause red/brown discolouration of the skin, so other treatments are often preferred in light-skinned patients.	2.02	1	0	monochlorobenzenes; phenazines	dye; leprostatic drug; non-steroidal anti-inflammatory drug
clofibrate angiokapsul: contains clofibrate & insoitolnicotinate	3.23	1	0	aromatic ether; ethyl ester; monochlorobenzenes	anticholesteremic drug; antilipemic drug; geroprotector; PPARalpha agonist
clomiphene [no description available]	3.23	1	0	tertiary amine	estrogen antagonist; estrogen receptor modulator
clomipramine Clomipramine: A tricyclic antidepressant similar to IMIPRAMINE that selectively inhibits the uptake of serotonin in the brain. It is readily absorbed from the gastrointestinal tract and demethylated in the liver to form its primary active metabolite, desmethylclomipramine.. clomipramine : A dibenzoazepine that is 10,11-dihydro-5H-dibenzo[b,f]azepine which is substituted by chlorine at position 3 and in which the hydrogen attached to the nitrogen is replaced by a 3-(dimethylamino)propyl group. One of the more sedating tricyclic antidepressants, it is used as the hydrochloride salt for the treatment of depression as well as obsessive-compulsive disorder and phobias.	3.84	3	0	dibenzoazepine	anticoronaviral agent; antidepressant; EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor; serotonergic antagonist; serotonergic drug; serotonin uptake inhibitor
clonazepam Clonazepam: An anticonvulsant used for several types of seizures, including myotonic or atonic seizures, photosensitive epilepsy, and absence seizures, although tolerance may develop. It is seldom effective in generalized tonic-clonic or partial seizures. The mechanism of action appears to involve the enhancement of GAMMA-AMINOBUTYRIC ACID receptor responses.. clonazepam : 1,3-Dihydro-2H-1,4-benzodiazepin-2-one in which the hydrogens at positions 5 and 7 are substituted by 2-chlorophenyl and nitro groups, respectively. It is used in the treatment of all types of epilepsy and seizures, as well as myoclonus and associated abnormal movements, and panic disorders. However, its use can be limited by the development of tolerance and by sedation.	5.24	3	0	1,4-benzodiazepinone; monochlorobenzenes	anticonvulsant; anxiolytic drug; GABA modulator
clonidine Clonidine: An imidazoline sympatholytic agent that stimulates ALPHA-2 ADRENERGIC RECEPTORS and central IMIDAZOLINE RECEPTORS. It is commonly used in the management of HYPERTENSION.. clonidine (amino form) : A clonidine that is 4,5-dihydro-1H-imidazol-2-amine in which one of the amino hydrogens is replaced by a 2,6-dichlorophenyl group.	5.87	7	1	clonidine; imidazoline
chlorazepate clorazepic acid : A 1,4-benzodiazepinone in which the oxo group is at position 2, and which is substituted at positions 3, 5, and 7 by carboxy, phenyl and chloro groups, respectively.	3.84	3	0	1,4-benzodiazepinone	anticonvulsant; anxiolytic drug; GABA modulator; prodrug
clotrimazole [no description available]	3.23	1	0	conazole antifungal drug; imidazole antifungal drug; imidazoles; monochlorobenzenes	antiinfective agent; environmental contaminant; xenobiotic
cyclobenzaprine cyclobenzaprine: RN given refers to parent cpd; Lisseril is synonymous for HCl; structure. cyclobenzaprine : 5-Methylidene-5H-dibenzo[a,d]cycloheptene in which one of the hydrogens of the methylidene group is substituted by a 2-(dimethylamino)ethyl group. A centrally acting skeletal muscle relaxant, it is used as its hydrochloride salt in the symptomatic treatment of painful muscle spasm.	3.56	2	0	carbotricyclic compound	antidepressant; muscle relaxant; tranquilizing drug
cyclofenil Cyclofenil: A gonadal stimulant and inducer of ovulation. It is used in the treatment of infertility and amenorrhea, but is thought to be less effective than CLOMIPHENE.	3.23	1	0	organic molecular entity
cyproheptadine Cyproheptadine: A serotonin antagonist and a histamine H1 blocker used as antipruritic, appetite stimulant, antiallergic, and for the post-gastrectomy dumping syndrome, etc.. cyproheptadine : The product resulting from the formal oxidative coupling of position 5 of 5H-dibenzo[a,d]cycloheptene with position 4 of 1-methylpiperidine resulting in the formation of a double bond between the two fragments. It is a sedating antihistamine with antimuscarinic and calcium-channel blocking actions. It is used (particularly as the hydrochloride sesquihydrate) for the relief of allergic conditions including rhinitis, conjunctivitis due to inhalant allergens and foods, urticaria and angioedema, and in pruritic skin disorders. Unlike other antihistamines, it is also a seratonin receptor antagonist, making it useful in conditions such as vascular headache and anorexia.	3.23	1	0	piperidines; tertiary amine	anti-allergic agent; antipruritic drug; gastrointestinal drug; H1-receptor antagonist; serotonergic antagonist
dapsone [no description available]	3.58	2	0	substituted aniline; sulfone	anti-inflammatory drug; antiinfective agent; antimalarial; leprostatic drug
deferoxamine Deferoxamine: Natural product isolated from Streptomyces pilosus. It forms iron complexes and is used as a chelating agent, particularly in the mesylate form.. desferrioxamine B : An acyclic desferrioxamine that is butanedioic acid in which one of the carboxy groups undergoes formal condensation with the primary amino group of N-(5-aminopentyl)-N-hydroxyacetamide and the second carboxy group undergoes formal condensation with the hydroxyamino group of N(1)-(5-aminopentyl)-N(1)-hydroxy-N(4)-[5-(hydroxyamino)pentyl]butanediamide. It is a siderophore native to Streptomyces pilosus biosynthesised by the DesABCD enzyme cluster as a high affinity Fe(III) chelator.	3.23	1	0	acyclic desferrioxamine	bacterial metabolite; ferroptosis inhibitor; iron chelator; siderophore
desipramine Desipramine: A tricyclic dibenzazepine compound that potentiates neurotransmission. Desipramine selectively blocks reuptake of norepinephrine from the neural synapse, and also appears to impair serotonin transport. This compound also possesses minor anticholinergic activity, through its affinity to muscarinic receptors.. desipramine : A dibenzoazepine consisting of 10,11-dihydro-5H-dibenzo[b,f]azepine substituted on nitrogen with a 3-(methylamino)propyl group.	3.58	2	0	dibenzoazepine; secondary amino compound	adrenergic uptake inhibitor; alpha-adrenergic antagonist; antidepressant; cholinergic antagonist; drug allergen; EC 3.1.4.12 (sphingomyelin phosphodiesterase) inhibitor; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; H1-receptor antagonist; serotonin uptake inhibitor
nordazepam Nordazepam: An intermediate in the metabolism of DIAZEPAM to OXAZEPAM. It may have actions similar to those of diazepam.. nordazepam : A 1,4-benzodiazepinone having phenyl and chloro substituents at positions 5 and 7 respectively; it has anticonvulsant, anxiolytic, muscle relaxant and sedative properties but is used primarily in the treatment of anxiety.	2.04	1	0	1,4-benzodiazepinone; organochlorine compound	anticonvulsant; anxiolytic drug; GABA modulator; human metabolite; sedative
nonivamide nonivamide: has effect on sensory neurons. nonivamide : A capsaicinoid that is the carboxamide resulting from the formal condensation of the amino group of 4-hydroxy-3-methoxybenzylamine with the carboxy group of nonanoic acid. It is the active ingredient in many pepper sprays.	1.97	1	0	capsaicinoid; phenols	lachrymator
amphetamine Amphetamine: A powerful central nervous system stimulant and sympathomimetic. Amphetamine has multiple mechanisms of action including blocking uptake of adrenergics and dopamine, stimulation of release of monamines, and inhibiting monoamine oxidase. Amphetamine is also a drug of abuse and a psychotomimetic. The l- and the d,l-forms are included here. The l-form has less central nervous system activity but stronger cardiovascular effects. The d-form is DEXTROAMPHETAMINE.. 1-phenylpropan-2-amine : A primary amine that is isopropylamine in which a hydrogen attached to one of the methyl groups has been replaced by a phenyl group.. amphetamine : A racemate comprising equimolar amounts of (R)-amphetamine (also known as levamphetamine or levoamphetamine) and (S)-amphetamine (also known as dexamfetamine or dextroamphetamine.	3.78	3	0	primary amine
diazepam Diazepam: A benzodiazepine with anticonvulsant, anxiolytic, sedative, muscle relaxant, and amnesic properties and a long duration of action. Its actions are mediated by enhancement of GAMMA-AMINOBUTYRIC ACID activity.. diazepam : A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one substituted by a chloro group at position 7, a methyl group at position 1 and a phenyl group at position 5.	13.53	133	16	1,4-benzodiazepinone; organochlorine compound	anticonvulsant; anxiolytic drug; environmental contaminant; sedative; xenobiotic
diazoxide Diazoxide: A benzothiadiazine derivative that is a peripheral vasodilator used for hypertensive emergencies. It lacks diuretic effect, apparently because it lacks a sulfonamide group.. diazoxide : A benzothiadiazine that is the S,S-dioxide of 2H-1,2,4-benzothiadiazine which is substituted at position 3 by a methyl group and at position 7 by chlorine. A peripheral vasodilator, it increases the concentration of glucose in the plasma and inhibits the secretion of insulin by the beta- cells of the pancreas. It is used orally in the management of intractable hypoglycaemia and intravenously in the management of hypertensive emergencies.	3.58	2	0	benzothiadiazine; organochlorine compound; sulfone	antihypertensive agent; beta-adrenergic agonist; bronchodilator agent; cardiotonic drug; diuretic; K-ATP channel agonist; sodium channel blocker; sympathomimetic agent; vasodilator agent
dibucaine Dibucaine: A local anesthetic of the amide type now generally used for surface anesthesia. It is one of the most potent and toxic of the long-acting local anesthetics and its parenteral use is restricted to spinal anesthesia. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1006). cinchocaine : A monocarboxylic acid amide that is the 2-(diethylamino)ethyl amide of 2-butoxyquinoline-4-carboxylic acid. One of the most potent and toxic of the long-acting local anesthetics, its parenteral use was restricted to spinal anesthesia. It is now generally only used (usually as the hydrochloride) in creams and ointments and in suppositories for temporary relief of pain and itching associated with skin and anorectal conditions.	1.94	1	0	aromatic ether; monocarboxylic acid amide; tertiary amino compound	topical anaesthetic
diclofenac Diclofenac: A non-steroidal anti-inflammatory agent (NSAID) with antipyretic and analgesic actions. It is primarily available as the sodium salt.. diclofenac : A monocarboxylic acid consisting of phenylacetic acid having a (2,6-dichlorophenyl)amino group at the 2-position.	3.84	3	0	amino acid; aromatic amine; dichlorobenzene; monocarboxylic acid; secondary amino compound	antipyretic; drug allergen; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; environmental contaminant; non-narcotic analgesic; non-steroidal anti-inflammatory drug; xenobiotic
dichlorphenamide Dichlorphenamide: A carbonic anhydrase inhibitor that is used in the treatment of glaucoma.. diclofenamide : A sulfonamide that is benzene-1,3-disulfonamide in which the hydrogens at positions 4 and 5 are substituted by chlorine. An oral carbonic anhydrase inhibitor, it partially suppresses the secretion (inflow) of aqueous humor in the eye and so reduces intraocular pressure. It is used for the treatment of glaucoma.	3.23	1	0	dichlorobenzene; sulfonamide	antiglaucoma drug; EC 4.2.1.1 (carbonic anhydrase) inhibitor; ophthalmology drug
dicyclomine Dicyclomine: A muscarinic antagonist used as an antispasmodic and in urinary incontinence. It has little effect on glandular secretion or the cardiovascular system. It does have some local anesthetic properties and is used in gastrointestinal, biliary, and urinary tract spasms.. dicyclomine : The ester resulting from the formal condensation of 1-cyclohexylcyclohexanecarboxylic acid with 2-(diethylamino)ethanol. An anticholinergic, it is used as the hydrochloride to treat or prevent spasm in the muscles of the gastrointestinal tract, particularly that associated with irritable bowel syndrome.	3.23	1	0	carboxylic ester; tertiary amine	antispasmodic drug; muscarinic antagonist; parasympatholytic
pentetic acid Pentetic Acid: An iron chelating agent with properties like EDETIC ACID. DTPA has also been used as a chelator for other metals, such as plutonium.	3.23	1	0	pentacarboxylic acid	copper chelator
diflunisal Diflunisal: A salicylate derivative and anti-inflammatory analgesic with actions and side effects similar to those of ASPIRIN.. diflunisal : An organofluorine compound comprising salicylic acid having a 2,4-difluorophenyl group at the 5-position.	3.84	3	0	monohydroxybenzoic acid; organofluorine compound	non-narcotic analgesic; non-steroidal anti-inflammatory drug
dimercaprol Dimercaprol: An anti-gas warfare agent that is effective against Lewisite (dichloro(2-chlorovinyl)arsine) and formerly known as British Anti-Lewisite or BAL. It acts as a chelating agent and is used in the treatment of arsenic, gold, and other heavy metal poisoning.. dimercaprol : A dithiol that is propane-1,2-dithiol in which one of the methyl hydrogens is replaced by a hydroxy group. a chelating agent originally developed during World War II as an experimental antidote against the arsenic-based poison gas Lewisite, it has been used clinically since 1949 for the treatment of poisoning by arsenic, mercury and gold. It can also be used for treatment of poisoning by antimony, bismuth and possibly thallium, and (with sodium calcium edetate) in cases of acute leaad poisoning. Administration is by (painful) intramuscular injection of a suspension of dimercaprol in peanut oil, typically every 4 hours for 2-10 days depending on the toxicity. In the past, dimercaprol was also used for the treatment of Wilson's disease, a severely debilitating genetic disorder in which the body tends to retain copper, with resultant liver and brain injury.	3.23	1	0	dithiol; primary alcohol	chelator
diphenhydramine Diphenhydramine: A histamine H1 antagonist used as an antiemetic, antitussive, for dermatoses and pruritus, for hypersensitivity reactions, as a hypnotic, an antiparkinson, and as an ingredient in common cold preparations. It has some undesired antimuscarinic and sedative effects.. diphenhydramine : An ether that is the benzhydryl ether of 2-(dimethylamino)ethanol. It is a H1-receptor antagonist used as a antipruritic and antitussive drug.. antitussive : An agent that suppresses cough. Antitussives have a central or a peripheral action on the cough reflex, or a combination of both. Compare with expectorants, which are considered to increase the volume of secretions in the respiratory tract, so facilitating their removal by ciliary action and coughing, and mucolytics, which decrease the viscosity of mucus, facilitating its removal by ciliary action and expectoration.	4.17	5	0	ether; tertiary amino compound	anti-allergic agent; antidyskinesia agent; antiemetic; antiparkinson drug; antipruritic drug; antitussive; H1-receptor antagonist; local anaesthetic; muscarinic antagonist; oneirogen; sedative
dipivefrin dipivefrin: used in treatment of both primary & open angle glaucoma; RN given refers to (+-)-isomer. dipivefrin : The dipivalate ester of (+-)-epinephrine (racepinephrine). A pro-drug of epinephrine, the hydrochloride is used topically as eye drops to reduce intra-ocular pressure in the treatment of open-angle glaucoma or ocular hypertension.	2.02	1	0	ethanolamines; pivalate ester	adrenergic agonist; antiglaucoma drug; ophthalmology drug; prodrug; sympathomimetic agent
dipyridamole Dipyridamole: A phosphodiesterase inhibitor that blocks uptake and metabolism of adenosine by erythrocytes and vascular endothelial cells. Dipyridamole also potentiates the antiaggregating action of prostacyclin. (From AMA Drug Evaluations Annual, 1994, p752). dipyridamole : A pyrimidopyrimidine that is 2,2',2'',2'''-(pyrimido[5,4-d]pyrimidine-2,6-diyldinitrilo)tetraethanol substituted by piperidin-1-yl groups at positions 4 and 8 respectively. A vasodilator agent, it inhibits the formation of blood clots.	3.48	2	0	piperidines; pyrimidopyrimidine; tertiary amino compound; tetrol	adenosine phosphodiesterase inhibitor; EC 3.5.4.4 (adenosine deaminase) inhibitor; platelet aggregation inhibitor; vasodilator agent
disopyramide Disopyramide: A class I anti-arrhythmic agent (one that interferes directly with the depolarization of the cardiac membrane and thus serves as a membrane-stabilizing agent) with a depressant action on the heart similar to that of guanidine. It also possesses some anticholinergic and local anesthetic properties.. disopyramide : A monocarboxylic acid amide that is butanamide substituted by a diisopropylamino group at position 4, a phenyl group at position 2 and a pyridin-2-yl group at position 2. It is used as a anti-arrhythmia drug.	3.84	3	0	monocarboxylic acid amide; pyridines; tertiary amino compound	anti-arrhythmia drug
disulfiram [no description available]	10.18	3	1	organic disulfide; organosulfur acaricide	angiogenesis inhibitor; antineoplastic agent; apoptosis inducer; EC 1.2.1.3 [aldehyde dehydrogenase (NAD(+))] inhibitor; EC 3.1.1.1 (carboxylesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; EC 5.99.1.2 (DNA topoisomerase) inhibitor; ferroptosis inducer; fungicide; NF-kappaB inhibitor
valproic acid Valproic Acid: A fatty acid with anticonvulsant and anti-manic properties that is used in the treatment of EPILEPSY and BIPOLAR DISORDER. The mechanisms of its therapeutic actions are not well understood. It may act by increasing GAMMA-AMINOBUTYRIC ACID levels in the brain or by altering the properties of VOLTAGE-GATED SODIUM CHANNELS.. valproic acid : A branched-chain saturated fatty acid that comprises of a propyl substituent on a pentanoic acid stem.	5.46	4	0	branched-chain fatty acid; branched-chain saturated fatty acid	anticonvulsant; antimanic drug; EC 3.5.1.98 (histone deacetylase) inhibitor; GABA agent; neuroprotective agent; psychotropic drug; teratogenic agent
2-amino-7-phosphonoheptanoic acid 2-amino-7-phosphonoheptanoic acid: (D)-isomer active as an antagonist of N-methyl-D-aspartate excitation of central neurons; (L)-isomer inactive; RN given refers to cpd without isomeric designation	1.97	1	0
domperidone Domperidone: A specific blocker of dopamine receptors. It speeds gastrointestinal peristalsis, causes prolactin release, and is used as antiemetic and tool in the study of dopaminergic mechanisms.. domperidone : 1-[3-(Piperidin-1-yl)propyl]-1,3-dihydro-2H-benzimidazol-2-one in which the 4-position of the piperidine ring is substituted by a 5-chloro-1,3-dihydro-2H-benzimidazol-2-on-1-yl group. A dopamine antagonist, it is used as an antiemetic for the short-term treatment of nausea and vomiting, and to control gastrointestinal effects of dopaminergic drugs given in the management of parkinsonism. The free base is used in oral suspensions, while the maleate salt is used in tablet preparations.	2.04	1	0	benzimidazoles; heteroarylpiperidine	antiemetic; dopaminergic antagonist
donepezil Donepezil: An indan and piperidine derivative that acts as a selective and reversible inhibitor of ACETYLCHOLINESTERASE. Donepezil is highly selective for the central nervous system and is used in the management of mild to moderate DEMENTIA in ALZHEIMER DISEASE.. donepezil : A racemate comprising equimolar amounts of (R)- and (S)-donepezil. A centrally acting reversible acetylcholinesterase inhibitor, its main therapeutic use is in the treatment of Alzheimer's disease where it is used to increase cortical acetylcholine.. 2-[(1-benzylpiperidin-4-yl)methyl]-5,6-dimethoxyindan-1-one : A member of the class of indanones that is 5,6-dimethoxyindan-1-one which is substituted at position 2 by an (N-benzylpiperidin-4-yl)methyl group.	3.23	1	0	aromatic ether; indanones; piperidines; racemate	EC 3.1.1.7 (acetylcholinesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; nootropic agent
doxapram Doxapram: A central respiratory stimulant with a brief duration of action. (From Martindale, The Extra Pharmocopoeia, 30th ed, p1225). doxapram : A member of the class of pyrrolidin-2-ones that is N-ethylpyrrolidin-2-one in which both of the hydrogens at the 3 position (adjacent to the carbonyl group) are substituted by phenyl groups, and one of the hydrogens at the 4 position is substituted by a 2-(morpholin-4-yl)ethyl group. A central and respiratory stimulant with a brief duration of action, it is used (generally as the hydrochloride or the hydrochloride hydrate) as a temporary treatment of acute respiratory failure, particularly when superimposed on chronic obstructive pulmonary disease, and of postoperative respiratory depression. It has also been used for treatment of postoperative shivering.	5.58	5	1	morpholines; pyrrolidin-2-ones	central nervous system stimulant
doxazosin Doxazosin: A prazosin-related compound that is a selective alpha-1-adrenergic blocker.. doxazosin : A member of the class of quinazolines that is quinazoline substituted by an amino group at position 4, methoxy groups at positions 6 and 7 and a piperazin-1-yl group at position 2 which in turn is substituted by a 2,3-dihydro-1,4-benzodioxin-2-ylcarbonyl group at position 4. An antihypertensive agent, it is used in the treatment of high blood pressure.	3.84	3	0	aromatic amine; benzodioxine; monocarboxylic acid amide; N-acylpiperazine; N-arylpiperazine; quinazolines	alpha-adrenergic antagonist; antihyperplasia drug; antihypertensive agent; antineoplastic agent; vasodilator agent
doxepin Doxepin: A dibenzoxepin tricyclic compound. It displays a range of pharmacological actions including maintaining adrenergic innervation. Its mechanism of action is not fully understood, but it appears to block reuptake of monoaminergic neurotransmitters into presynaptic terminals. It also possesses anticholinergic activity and modulates antagonism of histamine H(1)- and H(2)-receptors.. doxepin : A dibenzooxepine that is 6,11-dihydrodibenzo[b,e]oxepine substituted by a 3-(dimethylamino)propylidene group at position 11. It is used as an antidepressant drug.	3.84	3	0	dibenzooxepine; tertiary amino compound	antidepressant
doxylamine Doxylamine: Histamine H1 antagonist with pronounced sedative properties. It is used in allergies and as an antitussive, antiemetic, and hypnotic. Doxylamine has also been administered in veterinary applications and was formerly used in PARKINSONISM.	3.23	1	0	pyridines; tertiary amine	anti-allergic agent; antiemetic; antitussive; cholinergic antagonist; H1-receptor antagonist; histamine antagonist; sedative
droperidol Droperidol: A butyrophenone with general properties similar to those of HALOPERIDOL. It is used in conjunction with an opioid analgesic such as FENTANYL to maintain the patient in a calm state of neuroleptanalgesia with indifference to surroundings but still able to cooperate with the surgeon. It is also used as a premedicant, as an antiemetic, and for the control of agitation in acute psychoses. (From Martindale, The Extra Pharmacopoeia, 29th ed, p593). droperidol : An organofluorine compound that is haloperidol in which the hydroxy group has been eliminated with the introduction of a double bond in the piperidine ring, and the 4-chlorophenyl group has been replaced by a benzimidazol-2-on-1-yl group. It is used in the management of chemotherapy-induced nausea and vomiting, and in conjunction with an opioid analgesic such as fentanyl to maintain the patient in a calm state of neuroleptanalgesia with indifference to surroundings but still able to cooperate with the surgeon.	10.41	20	0	aromatic ketone; benzimidazoles; organofluorine compound	anaesthesia adjuvant; antiemetic; dopaminergic antagonist; first generation antipsychotic
dyphylline Dyphylline: A THEOPHYLLINE derivative with broncho- and vasodilator properties. It is used in the treatment of asthma, cardiac dyspnea, and bronchitis.. dyphylline : An oxopurine that is theophylline bearing a 2,3-dihydroxypropyl group at the 7 position. It has broncho- and vasodilator properties, and is used in the treatment of asthma, cardiac dyspnea, and bronchitis. It is also an ingredient in preparations that have been promoted for coughs.	3.58	2	0	oxopurine; propane-1,2-diols	bronchodilator agent; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; muscle relaxant; vasodilator agent
econazole Econazole: An imidazole derivative that is commonly used as a topical antifungal agent.. econazole : A racemate composed of equimolar amounts of (R)- and (S)-econazole. Used (as its nitrate salt) to treat skin infections such as athlete's foot, jock itch, ringworm and other fungal skin infections.. 1-{2-(4-chlorobenzyloxy)-2-(2,4-dichlorophenyl)ethyl}imidazole : A member of the class of imidazoles that is 1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethanol in which the hydroxyl hydrogen is replaced by a 4-chlorobenzyl group.	2.02	1	0	dichlorobenzene; ether; imidazoles; monochlorobenzenes
edrophonium Edrophonium: A rapid-onset, short-acting cholinesterase inhibitor used in cardiac arrhythmias and in the diagnosis of myasthenia gravis. It has also been used as an antidote to curare principles.. edrophonium : A quaternary ammonium ion that is N-ethyl-N,N-dimethylanilinium in which one of the meta positions is substituted by a hydroxy group. It is a reversible inhibitor of cholinesterase, with a rapid onset (30-60 seconds after injection) but a short duration of action (5-15 minutes). The chloride salt is used in myasthenia gravis both diagnostically and to distinguish between under- or over-treatment with other anticholinesterases. It has also been used for the reversal of neuromuscular blockade in anaesthesia, and for the management of poisoning due to tetrodotoxin, a neuromuscular blocking toxin found in puffer fish and other marine animals.	3.23	1	0	phenols; quaternary ammonium ion	antidote; diagnostic agent; EC 3.1.1.8 (cholinesterase) inhibitor
enflurane Enflurane: An extremely stable inhalation anesthetic that allows rapid adjustments of anesthesia depth with little change in pulse or respiratory rate.. enflurane : An ether in which the oxygen atom is connected to 2-chloro-1,1,2-trifluoroethyl and difluoromethyl groups.	11.21	13	3	ether; organochlorine compound; organofluorine compound	anaesthetic
enoxacin Enoxacin: A broad-spectrum 6-fluoronaphthyridinone antibacterial agent that is structurally related to NALIDIXIC ACID.. enoxacin : A 1,8-naphthyridine derivative that is 1,4-dihydro-1,8-naphthyridine with an ethyl group at the 1 position, a carboxy group at the 3-position, an oxo sustituent at the 4-position, a fluoro substituent at the 5-position and a piperazin-1-yl group at the 7 position. An antibacterial, it is used in the treatment of urinary-tract infections and gonorrhoea.	2.43	2	0	1,8-naphthyridine derivative; amino acid; fluoroquinolone antibiotic; monocarboxylic acid; N-arylpiperazine; quinolone antibiotic	antibacterial drug; DNA synthesis inhibitor
estazolam Estazolam: A benzodiazepine with anticonvulsant, hypnotic, and muscle relaxant properties. It has been shown in some cases to be more potent than DIAZEPAM or NITRAZEPAM.. estazolam : A triazolo[4,3-a][1,4]benzodiazepine having a phenyl group at position 6 and a chloro substituent at position 8. A short-acting benzodiazepine with general properties similar to diazepam, it is given by mouth as a hypnotic in the short-term management of insomnia.	3.56	2	0	triazoles; triazolobenzodiazepine	anticonvulsant; anxiolytic drug; GABA modulator
ethacrynic acid Ethacrynic Acid: A compound that inhibits symport of sodium, potassium, and chloride primarily in the ascending limb of Henle, but also in the proximal and distal tubules. This pharmacological action results in excretion of these ions, increased urinary output, and reduction in extracellular fluid. This compound has been classified as a loop or high ceiling diuretic.. etacrynic acid : An aromatic ether that is phenoxyacetic acid in which the phenyl ring is substituted by chlorines at positions 2 and 3, and by a 2-methylidenebutanoyl group at position 4. It is a loop diuretic used to treat high blood pressure resulting from diseases such as congestive heart failure, liver failure, and kidney failure. It is also a glutathione S-transferase (EC 2.5.1.18) inhibitor.	3.58	2	0	aromatic ether; aromatic ketone; dichlorobenzene; monocarboxylic acid	EC 2.5.1.18 (glutathione transferase) inhibitor; ion transport inhibitor; loop diuretic
ether Ether: A mobile, very volatile, highly flammable liquid used as an inhalation anesthetic and as a solvent for waxes, fats, oils, perfumes, alkaloids, and gums. It is mildly irritating to skin and mucous membranes.. ether : An organooxygen compound with formula ROR, where R is not hydrogen.. diethyl ether : An ether in which the oxygen atom is linked to two ethyl groups.	8.04	5	0	ether; volatile organic compound	inhalation anaesthetic; non-polar solvent; refrigerant
ethosuximide Ethosuximide: An anticonvulsant especially useful in the treatment of absence seizures unaccompanied by other types of seizures.. ethosuximide : A dicarboximide that is pyrrolidine-2,5-dione in which the hydrogens at position 3 are substituted by one methyl and one ethyl group. An antiepileptic, it is used in the treatment of absence seizures and may be used for myoclonic seizures, but is ineffective against tonic-clonic seizures.	3.23	1	0	dicarboximide; pyrrolidinone	anticonvulsant; geroprotector; T-type calcium channel blocker
ethotoin ethotoin: was heading 1966-94 (see under HYDANTOINS 1966-90); use HYDANTOINS to search ETHOTOIN 1966-94. ethotoin : An imidazolidine-2,4-dione that is hydantoin substituted by ethyl and phenyl at positions 3 and 5, respectively. An antiepileptic, it is less toxic than phenytoin but also less effective.	3.23	1	0	imidazolidine-2,4-dione	anticonvulsant
etidronate Etidronic Acid: A diphosphonate which affects calcium metabolism. It inhibits ectopic calcification and slows down bone resorption and bone turnover.. etidronic acid : A 1,1-bis(phosphonic acid) that is (ethane-1,1-diyl)bis(phosphonic acid) having a hydroxy substituent at the 1-position. It inhibits the formation, growth, and dissolution of hydroxyapatite crystals by chemisorption to calcium phosphate surfaces.	3.56	2	0	1,1-bis(phosphonic acid)	antineoplastic agent; bone density conservation agent; chelator
etilefrine Etilefrine: A phenylephrine-related beta-1 adrenergic and alpha adrenergic agonist used as a cardiotonic and antihypotensive agent.	2.04	1	0	phenols
etodolac Etodolac: A non-steroidal anti-inflammatory agent and cyclooxygenase-2 (COX-2) inhibitor with potent analgesic and anti-arthritic properties. It has been shown to be effective in the treatment of OSTEOARTHRITIS; RHEUMATOID ARTHRITIS; ANKYLOSING SPONDYLITIS; and in the alleviation of postoperative pain (PAIN, POSTOPERATIVE).. etodolac : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens is substituted by a 1,8-diethyl-1,3,4,9-tetrahydropyrano[3,4-b]indol-1-yl moiety. A preferential inhibitor of cyclo-oxygenase 2 and non-steroidal anti-inflammatory, it is used for the treatment of rheumatoid arthritis and osteoarthritis, and for the alleviation of postoperative pain. Administered as the racemate, only the (S)-enantiomer is active.	3.56	2	0	monocarboxylic acid; organic heterotricyclic compound	antipyretic; cyclooxygenase 2 inhibitor; non-narcotic analgesic; non-steroidal anti-inflammatory drug
brl 42810 [no description available]	3.56	2	0	2-aminopurines; acetate ester	antiviral drug; prodrug
felbamate Felbamate: A PEGylated phenylcarbamate derivative that acts as an antagonist of NMDA RECEPTORS. It is used as an anticonvulsant, primarily for the treatment of SEIZURES in severe refractory EPILEPSY.. felbamate : The bis(carbamate ester) of 2-phenylpropane-1,3-diol. An anticonvulsant, it is used in the treatment of epilepsy.	3.56	2	0	carbamate ester	anticonvulsant; neuroprotective agent
felodipine Felodipine: A dihydropyridine calcium antagonist with positive inotropic effects. It lowers blood pressure by reducing peripheral vascular resistance through a highly selective action on smooth muscle in arteriolar resistance vessels.. felodipine : The mixed (methyl, ethyl) diester of 4-(2,3-dichlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylic acid. A calcium-channel blocker, it lowers blood pressure by reducing peripheral vascular resistance through a highly selective action on smooth muscle in arteriolar resistance vessels. It is used in the management of hypertension and angina pectoris.	3.84	3	0	dichlorobenzene; dihydropyridine; ethyl ester; methyl ester	anti-arrhythmia drug; antihypertensive agent; calcium channel blocker; vasodilator agent
fenfluramine Fenfluramine: A centrally active drug that apparently both blocks serotonin uptake and provokes transport-mediated serotonin release.. fenfluramine : A secondary amino compound that is 1-phenyl-propan-2-amine in which one of the meta-hydrogens is substituted by trifluoromethyl, and one of the hydrogens attached to the nitrogen is substituted by an ethyl group. It binds to the serotonin reuptake pump, causing inhbition of serotonin uptake and release of serotonin. The resulting increased levels of serotonin lead to greater serotonin receptor activation which in turn lead to enhancement of serotoninergic transmission in the centres of feeding behavior located in the hypothalamus. This suppresses the appetite for carbohydrates. Fenfluramine was used as the hydrochloride for treatment of diabetes and obesity. It was withdrawn worldwide after reports of heart valve disease and pulmonary hypertension.	2.38	2	0	(trifluoromethyl)benzenes; secondary amino compound	appetite depressant; serotonergic agonist; serotonin uptake inhibitor
fenofibrate Pharmavit: a polyvitamin product, comprising vitamins A, D2, B1, B2, B6, C, E, nicotinamide, & calcium pantothene; may be a promising agent for application to human populations exposed to carcinogenic and genetic hazards of ionizing radiation; RN from CHEMLINE	3.23	1	0	aromatic ether; chlorobenzophenone; isopropyl ester; monochlorobenzenes	antilipemic drug; environmental contaminant; geroprotector; xenobiotic
fenoldopam Fenoldopam: A dopamine D1 receptor agonist that is used as an antihypertensive agent. It lowers blood pressure through arteriolar vasodilation.	3.23	1	0	benzazepine	alpha-adrenergic agonist; antihypertensive agent; dopamine agonist; dopaminergic antagonist; vasodilator agent
fenoprofen Fenoprofen: A propionic acid derivative that is used as a non-steroidal anti-inflammatory agent.. fenoprofen : A monocarboxylic acid that is propanoic acid in which one of the hydrogens at position 2 is substituted by a 3-phenoxyphenyl group. A non-steroidal anti-inflammatory drug, the dihydrate form of the calcium salt is used for the management of mild to moderate pain and for the relief of pain and inflammation associated with disorders such as arthritis. It is pharmacologically similar to aspirin, but causes less gastrointestinal bleeding.	3.23	1	0	monocarboxylic acid	antipyretic; cyclooxygenase 1 inhibitor; cyclooxygenase 2 inhibitor; drug allergen; non-narcotic analgesic; non-steroidal anti-inflammatory drug
berotek Fenoterol: A synthetic adrenergic beta-2 agonist that is used as a bronchodilator and tocolytic.. fenoterol : A member of the class resorcinols that is 5-(1-hydroxyethyl)benzene-1,3-diol in which one of the methyl hydrogens is replaced by a 1-(4-hydroxyphenyl)propan-2-amino group. A beta2-adrenergic agonist, it is used (as the hydrobromide salt) as a bronchodilator in the management of reversible airway obstruction.	2.04	1	0	resorcinols; secondary alcohol; secondary amino compound	beta-adrenergic agonist; bronchodilator agent; sympathomimetic agent; tocolytic agent
fenspiride fenspiride: was heading 1975-94 (see under SPIRO COMPOUNDS 1975-90); use SPIRO COMPOUNDS to search FENSPIRIDE 1975-94; bronchodilator agent used in asthma	2.04	1	0	azaspiro compound
fentanyl Fentanyl: A potent narcotic analgesic, abuse of which leads to habituation or addiction. It is primarily a mu-opioid agonist. Fentanyl is also used as an adjunct to general anesthetics, and as an anesthetic for induction and maintenance. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1078). fentanyl : A monocarboxylic acid amide resulting from the formal condensation of the aryl amino group of N-phenyl-1-(2-phenylethyl)piperidin-4-amine with propanoic acid.	13.52	105	37	anilide; monocarboxylic acid amide; piperidines	adjuvant; anaesthesia adjuvant; anaesthetic; intravenous anaesthetic; mu-opioid receptor agonist; opioid analgesic
fexofenadine fexofenadine: a second generation antihistamine; metabolite of the antihistaminic drug terfenadine; structure in first source; RN refers to HCl. fexofenadine : A piperidine-based anti-histamine compound.	3.56	2	0	piperidines; tertiary amine	anti-allergic agent; H1-receptor antagonist
fipexide fipexide: regulates dopaminergic systems at macromolecular level	3.23	1	0	benzodioxoles
flavoxate Flavoxate: A drug that has been used in various urinary syndromes and as an antispasmodic. Its therapeutic usefulness and its mechanism of action are not clear. It may have local anesthetic activity and direct relaxing effects on smooth muscle as well as some activity as a muscarinic antagonist.. flavoxate : A carboxylic ester resulting from the formal condensation of 3-methylflavone-8-carboxylic acid with 2-(1-piperidinyl)ethanol.	3.23	1	0	carboxylic ester; flavones; piperidines; tertiary amino compound	antispasmodic drug; muscarinic antagonist; parasympatholytic
flecainide Flecainide: A potent anti-arrhythmia agent, effective in a wide range of ventricular and atrial ARRHYTHMIAS and TACHYCARDIAS.. flecainide : A monocarboxylic acid amide obtained by formal condensation of the carboxy group of 2,5-bis(2,2,2-trifluoroethoxy)benzoic acid with the primary amino group of piperidin-2-ylmethylamine. An antiarrhythmic agent used (in the form of its acetate salt) to prevent and treat tachyarrhythmia (abnormal fast rhythm of the heart).	3.84	3	0	aromatic ether; monocarboxylic acid amide; organofluorine compound; piperidines	anti-arrhythmia drug
fleroxacin Fleroxacin: A broad-spectrum antimicrobial fluoroquinolone. The drug strongly inhibits the DNA-supercoiling activity of DNA GYRASE.. fleroxacin : A fluoroquinolone antibiotic that is 4-oxo-1,4-dihydroquinoline which is substituted at positions 1, 3, 6, 7 and 8 by 2-fluoroethyl, carboxy, fluoro, 4-methylpiperazin-1-yl and fluoro groups, respectively. It is active against many Gram-positive and Gram-negative bacteria.	2.04	1	0	difluorobenzene; fluoroquinolone antibiotic; monocarboxylic acid; N-alkylpiperazine; quinolines	antibacterial drug; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; topoisomerase IV inhibitor
fluconazole Fluconazole: Triazole antifungal agent that is used to treat oropharyngeal CANDIDIASIS and cryptococcal MENINGITIS in AIDS.. fluconazole : A member of the class of triazoles that is propan-2-ol substituted at position 1 and 3 by 1H-1,2,4-triazol-1-yl groups and at position 2 by a 2,4-difluorophenyl group. It is an antifungal drug used for the treatment of mucosal candidiasis and for systemic infections including systemic candidiasis, coccidioidomycosis, and cryptococcosis.	3.84	3	0	conazole antifungal drug; difluorobenzene; tertiary alcohol; triazole antifungal drug	environmental contaminant; P450 inhibitor; xenobiotic
flucytosine Flucytosine: A fluorinated cytosine analog that is used as an antifungal agent.. flucytosine : An organofluorine compound that is cytosine that is substituted at position 5 by a fluorine. A prodrug for the antifungal 5-fluorouracil, it is used for the treatment of systemic fungal infections.	3.84	3	0	aminopyrimidine; nucleoside analogue; organofluorine compound; pyrimidine antifungal drug; pyrimidone	prodrug
fluphenazine [no description available]	3.78	3	0	N-alkylpiperazine; organofluorine compound; phenothiazines	anticoronaviral agent; dopaminergic antagonist; phenothiazine antipsychotic drug
flumazenil Flumazenil: A potent benzodiazepine receptor antagonist. Since it reverses the sedative and other actions of benzodiazepines, it has been suggested as an antidote to benzodiazepine overdoses.. flumazenil : An organic heterotricyclic compound that is 5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepine which is substituted at positions 3, 5, 6, and 8 by ethoxycarbonyl, methyl, oxo, and fluoro groups, respectively. It is used as an antidote to benzodiazepine overdose.	10.73	6	1	ethyl ester; imidazobenzodiazepine; organofluorine compound	antidote to benzodiazepine poisoning; GABA antagonist
flunitrazepam Flunitrazepam: A benzodiazepine with pharmacologic actions similar to those of DIAZEPAM that can cause ANTEROGRADE AMNESIA. Some reports indicate that it is used as a date rape drug and suggest that it may precipitate violent behavior. The United States Government has banned the importation of this drug.. flunitrazepam : A 1,4-benzodiazepinone that is nitrazepam substituted by a methyl group at position 1 and by a fluoro group at position 2'. It is a potent hypnotic, sedative, and amnestic drug used to treat chronic insomnia.	6.76	7	1	1,4-benzodiazepinone; C-nitro compound; monofluorobenzenes	anxiolytic drug; GABAA receptor agonist; sedative
fluorescite fluorescein (acid form) : A xanthene dye that is highly fluorescent and commonly used as a fluorescent tracer.	3.58	2	0	benzoic acids; cyclic ketone; hydroxy monocarboxylic acid; organic heterotricyclic compound; phenols; xanthene dye	fluorescent dye; radioopaque medium
fluorouracil Fluorouracil: A pyrimidine analog that is an antineoplastic antimetabolite. It interferes with DNA synthesis by blocking the THYMIDYLATE SYNTHETASE conversion of deoxyuridylic acid to thymidylic acid.. 5-fluorouracil : A nucleobase analogue that is uracil in which the hydrogen at position 5 is replaced by fluorine. It is an antineoplastic agent which acts as an antimetabolite - following conversion to the active deoxynucleotide, it inhibits DNA synthesis (by blocking the conversion of deoxyuridylic acid to thymidylic acid by the cellular enzyme thymidylate synthetase) and so slows tumour growth.	3.84	3	0	nucleobase analogue; organofluorine compound	antimetabolite; antineoplastic agent; environmental contaminant; immunosuppressive agent; radiosensitizing agent; xenobiotic
fluoxetine Fluoxetine: The first highly specific serotonin uptake inhibitor. It is used as an antidepressant and often has a more acceptable side-effects profile than traditional antidepressants.. fluoxetine : A racemate comprising equimolar amounts of (R)- and (S)-fluoxetine. A selective serotonin reuptake inhibitor (SSRI), it is used (generally as the hydrochloride salt) for the treatment of depression (and the depressive phase of bipolar disorder), bullimia nervosa, and obsessive-compulsive disorder.. N-methyl-3-phenyl-3-[4-(trifluoromethyl)phenoxy]propan-1-amine : An aromatic ether consisting of 4-trifluoromethylphenol in which the hydrogen of the phenolic hydroxy group is replaced by a 3-(methylamino)-1-phenylpropyl group.	3.56	2	0	(trifluoromethyl)benzenes; aromatic ether; secondary amino compound
fluphenazine depot fluphenazine decanoate : The prodrug of fluphenazine, an antipsychotic drug used for the symptomatic management of psychosis in patients with schizophrenia.	2.02	1	0	decanoate ester; N-alkylpiperazine; organofluorine compound; phenothiazines	dopaminergic antagonist; phenothiazine antipsychotic drug; prodrug
fluphenazine enanthate [no description available]	2.02	1	0	phenothiazines
flurazepam Flurazepam: A benzodiazepine derivative used mainly as a hypnotic.. flurazepam : A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one substituted by a 2-(diethylamino)ethyl group, 2-fluorophenyl group and chloro group at positions 1, 5 and 7, respectively. It is a partial agonist of GABAA receptors and used for the treatment of insomnia.	3.23	1	0	1,4-benzodiazepinone; monofluorobenzenes; organochlorine compound; tertiary amino compound	anticonvulsant; anxiolytic drug; GABAA receptor agonist; sedative
flurbiprofen Flurbiprofen: An anti-inflammatory analgesic and antipyretic of the phenylalkynoic acid series. It has been shown to reduce bone resorption in periodontal disease by inhibiting CARBONIC ANHYDRASE.. flurbiprofen : A monocarboxylic acid that is a 2-fluoro-[1,1'-biphenyl-4-yl] moiety linked to C-2 of propionic acid. A non-steroidal anti-inflammatory, analgesic and antipyretic, it is used as a pre-operative anti-miotic as well as orally for arthritis or dental pain.	3.56	2	0	fluorobiphenyl; monocarboxylic acid	antipyretic; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; non-narcotic analgesic; non-steroidal anti-inflammatory drug
flutamide Flutamide: An antiandrogen with about the same potency as cyproterone in rodent and canine species.	3.56	2	0	(trifluoromethyl)benzenes; monocarboxylic acid amide	androgen antagonist; antineoplastic agent
fomepizole Fomepizole: A pyrazole and competitive inhibitor of ALCOHOL DEHYDROGENASE that is used for the treatment of poisoning by ETHYLENE GLYCOL or METHANOL.. fomepizole : A member of the class of pyrazoles that is 1H-pyrazole substituted by a methyl group at position 4.	3.23	1	0	pyrazoles	antidote; EC 1.1.1.1 (alcohol dehydrogenase) inhibitor; protective agent
foscarnet Foscarnet: An antiviral agent used in the treatment of cytomegalovirus retinitis. Foscarnet also shows activity against human herpesviruses and HIV.. phosphonoformic acid : Phosphoric acid in which one of the hydroxy groups is replaced by a carboxylic acid group. It is used as the trisodium salt as an antiviral agent in the treatment of cytomegalovirus retinitis (CMV retinitis, an inflamation of the retina that can lead to blindness) and as an alternative to ganciclovir for AIDS patients who require concurrent antiretroviral therapy but are unable to tolerate ganciclovir due to haematological toxicity.	3.84	3	0	carboxylic acid; one-carbon compound; phosphonic acids	antiviral drug; geroprotector; HIV-1 reverse transcriptase inhibitor; sodium-dependent Pi-transporter inhibitor
furosemide Furosemide: A benzoic-sulfonamide-furan. It is a diuretic with fast onset and short duration that is used for EDEMA and chronic RENAL INSUFFICIENCY.. furosemide : A chlorobenzoic acid that is 4-chlorobenzoic acid substituted by a (furan-2-ylmethyl)amino and a sulfamoyl group at position 2 and 5 respectively. It is a diuretic used in the treatment of congestive heart failure.	3.84	3	0	chlorobenzoic acid; furans; sulfonamide	environmental contaminant; loop diuretic; xenobiotic
gabapentin Gabapentin: A cyclohexane-gamma-aminobutyric acid derivative that is used for the treatment of PARTIAL SEIZURES; NEURALGIA; and RESTLESS LEGS SYNDROME.. gabapentin : A gamma-amino acid that is cyclohexane substituted at position 1 by aminomethyl and carboxymethyl groups. Used for treatment of neuropathic pain and restless legs syndrome.	3.84	3	0	gamma-amino acid	anticonvulsant; calcium channel blocker; environmental contaminant; xenobiotic
gemfibrozil [no description available]	3.56	2	0	aromatic ether	antilipemic drug
glafenine Glafenine: An anthranilic acid derivative with analgesic properties used for the relief of all types of pain.. glafenine : A carboxylic ester that is 2,3-dihydroxypropyl anthranilate in which the amino group is substituted by a 7-chloroquinolin-4-yl group. A non-steroidal anti-inflammatory drug, glafenine and its hydrochloride salt were used for the relief of all types of pain, but high incidence of anaphylactic reactions resulted in their withdrawal from the market.	3.23	1	0	aminoquinoline; carboxylic ester; glycol; organochlorine compound; secondary amino compound	inhibitor; non-narcotic analgesic; non-steroidal anti-inflammatory drug
glimepiride glimepiride: structure given in first source	3.84	3	0	sulfonamide
glipizide Glipizide: An oral hypoglycemic agent which is rapidly absorbed and completely metabolized.. glipizide : An N-sulfonylurea that is glyburide in which the (5-chloro-2-methoxybenzoyl group is replaced by a (5-methylpyrazin-2-yl)carbonyl group. An oral hypoglycemic agent, it is used in the treatment of type 2 diabetes mellitus.	3.84	3	0	aromatic amide; monocarboxylic acid amide; N-sulfonylurea; pyrazines	EC 2.7.1.33 (pantothenate kinase) inhibitor; hypoglycemic agent; insulin secretagogue
glutethimide Glutethimide: A hypnotic and sedative. Its use has been largely superseded by other drugs.	2.34	2	0	piperidines
glyburide Glyburide: An antidiabetic sulfonylurea derivative with actions like those of chlorpropamide. glyburide : An N-sulfonylurea that is acetohexamide in which the acetyl group is replaced by a 2-(5-chloro-2-methoxybenzamido)ethyl group.	3.84	3	0	monochlorobenzenes; N-sulfonylurea	anti-arrhythmia drug; EC 2.7.1.33 (pantothenate kinase) inhibitor; EC 3.6.3.49 (channel-conductance-controlling ATPase) inhibitor; hypoglycemic agent
2-cyclopentyl-2-hydroxy-2-phenylacetic acid (1,1-dimethyl-3-pyrrolidin-1-iumyl) ester [no description available]	3.23	1	0	benzenes
granisetron [no description available]	3.84	3	0	aromatic amide; indazoles
guaifenesin Guaifenesin: An expectorant that also has some muscle relaxing action. It is used in many cough preparations.	4.01	4	0	methoxybenzenes
guanethidine Guanethidine: An antihypertensive agent that acts by inhibiting selectively transmission in post-ganglionic adrenergic nerves. It is believed to act mainly by preventing the release of norepinephrine at nerve endings and causes depletion of norepinephrine in peripheral sympathetic nerve terminals as well as in tissues.. guanethidine : A member of the class of guanidines in which one of the hydrogens of the amino group has been replaced by a 2-azocan-1-ylethyl group.. guanethidine sulfate : A organic sulfate salt composed of two molecules of guanethidine and one of sulfuric acid.	3.23	1	0	azocanes; guanidines	adrenergic antagonist; antihypertensive agent; sympatholytic agent
guanfacine Guanfacine: A centrally acting antihypertensive agent with specificity towards ADRENERGIC ALPHA-2 RECEPTORS.	3.84	3	0	acetamides
guanidine Guanidine: A strong organic base existing primarily as guanidium ions at physiological pH. It is found in the urine as a normal product of protein metabolism. It is also used in laboratory research as a protein denaturant. (From Martindale, the Extra Pharmacopoeia, 30th ed and Merck Index, 12th ed) It is also used in the treatment of myasthenia and as a fluorescent probe in HPLC.. guanidine : An aminocarboxamidine, the parent compound of the guanidines.	3.23	1	0	carboxamidine; guanidines; one-carbon compound
gyki 52466 GYKI 52466: an AMPA (non-NMDA) receptor antagonist; structure given in first source	7	1	0	benzodiazepine
haloperidol Haloperidol: A phenyl-piperidinyl-butyrophenone that is used primarily to treat SCHIZOPHRENIA and other PSYCHOSES. It is also used in schizoaffective disorder, DELUSIONAL DISORDERS, ballism, and TOURETTE SYNDROME (a drug of choice) and occasionally as adjunctive therapy in INTELLECTUAL DISABILITY and the chorea of HUNTINGTON DISEASE. It is a potent antiemetic and is used in the treatment of intractable HICCUPS. (From AMA Drug Evaluations Annual, 1994, p279). haloperidol : A compound composed of a central piperidine structure with hydroxy and p-chlorophenyl substituents at position 4 and an N-linked p-fluorobutyrophenone moiety.	4.33	6	0	aromatic ketone; hydroxypiperidine; monochlorobenzenes; organofluorine compound; tertiary alcohol	antidyskinesia agent; antiemetic; dopaminergic antagonist; first generation antipsychotic; serotonergic antagonist
halothane [no description available]	13.18	100	13	haloalkane; organobromine compound; organochlorine compound; organofluorine compound	inhalation anaesthetic
hexobarbital Hexobarbital: A barbiturate that is effective as a hypnotic and sedative.. hexobarbital : A member of the class of barbiturates taht is barbituric acid substituted at N-1 by methyl and at C-5 by methyl and cyclohex-1-enyl groups.	4.47	24	0	barbiturates
hydralazine Hydralazine: A direct-acting vasodilator that is used as an antihypertensive agent.. hydralazine : The 1-hydrazino derivative of phthalazine; a direct-acting vasodilator that is used as an antihypertensive agent.	5.19	3	1	azaarene; hydrazines; ortho-fused heteroarene; phthalazines	antihypertensive agent; vasodilator agent
hydrochlorothiazide Hydrochlorothiazide: A thiazide diuretic often considered the prototypical member of this class. It reduces the reabsorption of electrolytes from the renal tubules. This results in increased excretion of water and electrolytes, including sodium, potassium, chloride, and magnesium. It is used in the treatment of several disorders including edema, hypertension, diabetes insipidus, and hypoparathyroidism.. hydrochlorothiazide : A benzothiadiazine that is 3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide substituted by a chloro group at position 6 and a sulfonamide at 7. It is diuretic used for the treatment of hypertension and congestive heart failure.	3.56	2	0	benzothiadiazine; organochlorine compound; sulfonamide	antihypertensive agent; diuretic; environmental contaminant; xenobiotic
hydroflumethiazide Hydroflumethiazide: A thiazide diuretic with actions and uses similar to those of HYDROCHLOROTHIAZIDE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p822). hydroflumethiazide : A benzothiadiazine consisting of a 3,4-dihydro-HH-1,2,4-benzothiadiazine bicyclic system dioxygenated on sulfur and carrying trifluoromethyl and aminosulfonyl groups at positions 6 and 7 respectively. A diuretic with actions and uses similar to those of hydrochlorothiazide.	3.58	2	0	benzothiadiazine; thiazide	antihypertensive agent; diuretic
hydroxychloroquine Hydroxychloroquine: A chemotherapeutic agent that acts against erythrocytic forms of malarial parasites. Hydroxychloroquine appears to concentrate in food vacuoles of affected protozoa. It inhibits plasmodial heme polymerase. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p970). hydroxychloroquine : An aminoquinoline that is chloroquine in which one of the N-ethyl groups is hydroxylated at position 2. An antimalarial with properties similar to chloroquine that acts against erythrocytic forms of malarial parasites, it is mainly used as the sulfate salt for the treatment of lupus erythematosus, rheumatoid arthritis, and light-sensitive skin eruptions.	3.58	2	0	aminoquinoline; organochlorine compound; primary alcohol; secondary amino compound; tertiary amino compound	anticoronaviral agent; antimalarial; antirheumatic drug; dermatologic drug
hydroxyurea [no description available]	3.84	3	0	one-carbon compound; ureas	antimetabolite; antimitotic; antineoplastic agent; DNA synthesis inhibitor; EC 1.17.4.1 (ribonucleoside-diphosphate reductase) inhibitor; genotoxin; immunomodulator; radical scavenger; teratogenic agent
hydroxyzine Hydroxyzine: A histamine H1 receptor antagonist that is effective in the treatment of chronic urticaria, dermatitis, and histamine-mediated pruritus. Unlike its major metabolite CETIRIZINE, it does cause drowsiness. It is also effective as an antiemetic, for relief of anxiety and tension, and as a sedative.. hydroxyzine : A N-alkylpiperazine that is piperzine in which the nitrogens atoms are substituted by 2-(2-hydroxyethoxy)ethyl and (4-chlorophenyl)(phenyl)methyl groups respectively.	4.66	9	0	hydroxyether; monochlorobenzenes; N-alkylpiperazine	anticoronaviral agent; antipruritic drug; anxiolytic drug; dermatologic drug; H1-receptor antagonist
hypericin [no description available]	2.04	1	0
ibuprofen Midol: combination of cinnamedrine, phenacetin, aspirin & caffeine	3.84	3	0	monocarboxylic acid	antipyretic; cyclooxygenase 1 inhibitor; cyclooxygenase 2 inhibitor; drug allergen; environmental contaminant; geroprotector; non-narcotic analgesic; non-steroidal anti-inflammatory drug; radical scavenger; xenobiotic
phenelzine Phenelzine: One of the MONOAMINE OXIDASE INHIBITORS used to treat DEPRESSION; PHOBIC DISORDERS; and PANIC.	3.56	2	0	primary amine
lidocaine Lidocaine: A local anesthetic and cardiac depressant used as an antiarrhythmia agent. Its actions are more intense and its effects more prolonged than those of PROCAINE but its duration of action is shorter than that of BUPIVACAINE or PRILOCAINE.. lidocaine : The monocarboxylic acid amide resulting from the formal condensation of N,N-diethylglycine with 2,6-dimethylaniline.	14.33	37	9	benzenes; monocarboxylic acid amide; tertiary amino compound	anti-arrhythmia drug; drug allergen; environmental contaminant; local anaesthetic; xenobiotic
ifosfamide [no description available]	3.84	3	0	ifosfamides	alkylating agent; antineoplastic agent; environmental contaminant; immunosuppressive agent; xenobiotic
imipramine Imipramine: The prototypical tricyclic antidepressant. It has been used in major depression, dysthymia, bipolar depression, attention-deficit disorders, agoraphobia, and panic disorders. It has less sedative effect than some other members of this therapeutic group.. imipramine : A dibenzoazepine that is 5H-dibenzo[b,f]azepine substituted by a 3-(dimethylamino)propyl group at the nitrogen atom.	3.58	2	0	dibenzoazepine	adrenergic uptake inhibitor; antidepressant; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
amrinone Amrinone: A positive inotropic cardiotonic (CARDIOTONIC AGENTS) with vasodilator properties, phosphodiesterase 3 inhibitory activity, and the ability to stimulate calcium ion influx into the cardiac cell.. amrinone : A 3,4'-bipyridine substituted at positions 5 and 6 by an amino group and a keto function respectively. A pyridine phosphodiesterase 3 inhibitor, it is a drug that may improve the prognosis in patients with congestive heart failure.	3.84	3	0	bipyridines	EC 3.1.4.* (phosphoric diester hydrolase) inhibitor
indapamide Indapamide: A benzamide-sulfonamide-indole derived DIURETIC that functions by inhibiting SODIUM CHLORIDE SYMPORTERS.. indapamide : A sulfonamide formed by condensation of the carboxylic group of 4-chloro-3-sulfamoylbenzoic acid with the amino group of 2-methyl-2,3-dihydro-1H-indol-1-amine.	3.56	2	0	indoles; organochlorine compound; sulfonamide	antihypertensive agent; diuretic
indomethacin Indomethacin: A non-steroidal anti-inflammatory agent (NSAID) that inhibits CYCLOOXYGENASE, which is necessary for the formation of PROSTAGLANDINS and other AUTACOIDS. It also inhibits the motility of POLYMORPHONUCLEAR LEUKOCYTES.. indometacin : A member of the class of indole-3-acetic acids that is indole-3-acetic acid in which the indole ring is substituted at positions 1, 2 and 5 by p-chlorobenzoyl, methyl, and methoxy groups, respectively. A non-steroidal anti-inflammatory drug, it is used in the treatment of musculoskeletal and joint disorders including osteoarthritis, rheumatoid arthritis, gout, bursitis and tendinitis.	3.84	3	0	aromatic ether; indole-3-acetic acids; monochlorobenzenes; N-acylindole	analgesic; drug metabolite; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; environmental contaminant; gout suppressant; non-steroidal anti-inflammatory drug; xenobiotic metabolite; xenobiotic
iodixanol iodixanol: dimeric contrast media; structure given in first source. iodixanol : A dimeric, non-ionic, water-soluble, radiographic contrast agent, used particularly in coronary angiography.	2.02	1	0	organoiodine compound	radioopaque medium
iohexol Iohexol: An effective non-ionic, water-soluble contrast agent which is used in myelography, arthrography, nephroangiography, arteriography, and other radiographic procedures. Its low systemic toxicity is the combined result of low chemotoxicity and low osmolality.. iohexol : A benzenedicarboxamide compound having N-(2,3-dihydroxypropyl)carbamoyl groups at the 1- and 3-positions, iodo substituents at the 2-, 4- and 6-positions and an N-(2,3-dihydroxypropyl)acetamido group at the 5-position.	2.43	2	0	benzenedicarboxamide; organoiodine compound	environmental contaminant; radioopaque medium; xenobiotic
iopromide iopromide: structure given in first source. iopromide : A dicarboxylic acid diamide that consists of N-methylisophthalamide bearing three iodo substituents at positions 2, 4 and 6, a methoxyacetyl substituent at position 5 and two 2,3-dihydroxypropyl groups attached to the amide nitrogens. A water soluble x-ray contrast agent for intravascular administration.	2.43	2	0	dicarboxylic acid diamide; organoiodine compound	environmental contaminant; nephrotoxic agent; radioopaque medium; xenobiotic
iothalamic acid Iothalamic Acid: A contrast medium in diagnostic radiology with properties similar to those of diatrizoic acid. It is used primarily as its sodium and meglumine (IOTHALAMATE MEGLUMINE) salts.	2.04	1	0	organic molecular entity
ioversol [no description available]	3.56	2	0	amidobenzoic acid
iproniazid [no description available]	5.14	3	1	carbohydrazide; pyridines
avapro Irbesartan: A spiro compound, biphenyl and tetrazole derivative that acts as an angiotensin II type 1 receptor antagonist. It is used in the management of HYPERTENSION, and in the treatment of kidney disease.. irbesartan : A biphenylyltetrazole that is an angiotensin II receptor antagonist used mainly for the treatment of hypertension.	3.58	2	0	azaspiro compound; biphenylyltetrazole	angiotensin receptor antagonist; antihypertensive agent; environmental contaminant; xenobiotic
isocarboxazid Isocarboxazid: An MAO inhibitor that is effective in the treatment of major depression, dysthymic disorder, and atypical depression. It also is useful in the treatment of panic disorder and the phobic disorders. (From AMA, Drug Evaluations Annual, 1994, p311)	3.23	1	0	benzenes
isoflurane Isoflurane: A stable, non-explosive inhalation anesthetic, relatively free from significant side effects.	7.06	19	5	organofluorine compound	inhalation anaesthetic
isoniazid Hydra: A genus of freshwater polyps in the family Hydridae, order Hydroida, class HYDROZOA. They are of special interest because of their complex organization and because their adult organization corresponds roughly to the gastrula of higher animals.. hydrazide : Compounds derived from oxoacids RkE(=O)l(OH)m (l =/= 0) by replacing -OH by -NRNR2 (R groups are commonly H). (IUPAC).	3.84	3	0	carbohydrazide	antitubercular agent; drug allergen
2-propanol 2-Propanol: An isomer of 1-PROPANOL. It is a colorless liquid having disinfectant properties. It is used in the manufacture of acetone and its derivatives and as a solvent. Topically, it is used as an antiseptic.. propan-2-ol : A secondary alcohol that is propane in which one of the hydrogens attached to the central carbon is substituted by a hydroxy group.	1.96	1	0	secondary alcohol; secondary fatty alcohol	protic solvent
isoproterenol Isoproterenol: Isopropyl analog of EPINEPHRINE; beta-sympathomimetic that acts on the heart, bronchi, skeletal muscle, alimentary tract, etc. It is used mainly as bronchodilator and heart stimulant.. isoprenaline : A secondary amino compound that is noradrenaline in which one of the hydrogens attached to the nitrogen is replaced by an isopropyl group. A sympathomimetic acting almost exclusively on beta-adrenergic receptors, it is used (mainly as the hydrochloride salt) as a bronghodilator and heart stimulant for the management of a variety of cardiac disorders.	4.66	9	0	catechols; secondary alcohol; secondary amino compound	beta-adrenergic agonist; bronchodilator agent; cardiotonic drug; sympathomimetic agent
isoxsuprine Isoxsuprine: A beta-adrenergic agonist that causes direct relaxation of uterine and vascular smooth muscle. Its vasodilating actions are greater on the arteries supplying skeletal muscle than on those supplying skin. It is used in the treatment of peripheral vascular disease and in premature labor.	3.23	1	0	alkylbenzene
isradipine Isradipine: A potent antagonist of CALCIUM CHANNELS that is highly selective for VASCULAR SMOOTH MUSCLE. It is effective in the treatment of chronic stable angina pectoris, hypertension, and congestive cardiac failure.	3.84	3	0	benzoxadiazole; dihydropyridine; isopropyl ester; methyl ester
itraconazole [no description available]	3.84	3	0	piperazines
ketamine Ketamine: A cyclohexanone derivative used for induction of anesthesia. Its mechanism of action is not well understood, but ketamine can block NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE) and may interact with sigma receptors.. ketamine : A member of the class of cyclohexanones in which one of the hydrogens at position 2 is substituted by a 2-chlorophenyl group, while the other is substituted by a methylamino group.	15.32	104	13	cyclohexanones; monochlorobenzenes; secondary amino compound	analgesic; environmental contaminant; intravenous anaesthetic; neurotoxin; NMDA receptor antagonist; xenobiotic
ketanserin Ketanserin: A selective serotonin receptor antagonist with weak adrenergic receptor blocking properties. The drug is effective in lowering blood pressure in essential hypertension. It also inhibits platelet aggregation. It is well tolerated and is particularly effective in older patients.. ketanserin : A member of the class of quinazolines that is quinazoline-2,4(1H,3H)-dione which is substituted at position 3 by a 2-[4-(p-fluorobenzoyl)piperidin-1-yl]ethyl group.	2.04	1	0	aromatic ketone; organofluorine compound; piperidines; quinazolines	alpha-adrenergic antagonist; antihypertensive agent; cardiovascular drug; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; serotonergic antagonist
ketoconazole 1-acetyl-4-(4-{[2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)piperazine : A dioxolane that is 1,3-dioxolane which is substituted at positions 2, 2, and 4 by imidazol-1-ylmethyl, 2,4-dichlorophenyl, and [para-(4-acetylpiperazin-1-yl)phenoxy]methyl groups, respectively.	3.56	2	0	dichlorobenzene; dioxolane; ether; imidazoles; N-acylpiperazine; N-arylpiperazine
ketoprofen Ketoprofen: An IBUPROFEN-type anti-inflammatory analgesic and antipyretic. It is used in the treatment of rheumatoid arthritis and osteoarthritis.. ketoprofen : An oxo monocarboxylic acid that consists of propionic acid substituted by a 3-benzoylphenyl group at position 2.	3.84	3	0	benzophenones; oxo monocarboxylic acid	antipyretic; drug allergen; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; environmental contaminant; non-steroidal anti-inflammatory drug; xenobiotic
ketorolac Ketorolac: A pyrrolizine carboxylic acid derivative structurally related to INDOMETHACIN. It is an NSAID and is used principally for its analgesic activity. (From Martindale The Extra Pharmacopoeia, 31st ed). ketorolac : A racemate comprising equimolar amounts of (R)-(+)- and (S)-(-)-5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylic acid. While only the (S)-(-) enantiomer is a COX1 and COX2 inhibitor, the (R)-(+) enantiomer exhibits potent analgesic activity. A non-steroidal anti-inflammatory drug, ketorolac is mainly used (generally as the tromethamine salt) for its potent analgesic properties in the short-term management of post-operative pain, and in eye drops to relieve the ocular itching associated with seasonal allergic conjunctivitis. It was withdrawn from the market in many countries in 1993 following association with haemorrhage and renal failure.. 5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylic acid : A member of the class of pyrrolizines that is 2,3-dihydro-1H-pyrrolizine which is substituted at positions 1 and 5 by carboxy and benzoyl groups, respectively.	3.84	3	0	amino acid; aromatic ketone; monocarboxylic acid; pyrrolizines; racemate	analgesic; cyclooxygenase 1 inhibitor; cyclooxygenase 2 inhibitor; non-steroidal anti-inflammatory drug
labetalol Labetalol: A salicylamide derivative that is a non-cardioselective blocker of BETA-ADRENERGIC RECEPTORS and ALPHA-1 ADRENERGIC RECEPTORS.. labetalol : A diastereoisomeric mixture of approximately equal amounts of all four possible stereoisomers ((R,S)-labetolol, (S,R)-labetolol, (S,S)-labetalol and (R,R)-labetalol). It is an adrenergic antagonist used to treat high blood pressure.. 2-hydroxy-5-{1-hydroxy-2-[(4-phenylbutan-2-yl)amino]ethyl}benzamide : A member of the class of benzamides that is benzamide substituted by a hydroxy group at position 2 and by a 1-hydroxy-2-[(4-phenylbutan-2-yl)amino]ethyl group at position 5.	5.43	4	1	benzamides; benzenes; phenols; primary carboxamide; salicylamides; secondary alcohol; secondary amino compound
lamotrigine [no description available]	3.56	2	0	1,2,4-triazines; dichlorobenzene; primary arylamine	anticonvulsant; antidepressant; antimanic drug; calcium channel blocker; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; environmental contaminant; excitatory amino acid antagonist; geroprotector; non-narcotic analgesic; xenobiotic
lansoprazole Lansoprazole: A 2,2,2-trifluoroethoxypyridyl derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS. Lansoprazole is a racemic mixture of (R)- and (S)-isomers.	3.84	3	0	benzimidazoles; pyridines; sulfoxide	anti-ulcer drug; EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor
leflunomide Leflunomide: An isoxazole derivative that inhibits dihydroorotate dehydrogenase, the fourth enzyme in the pyrimidine biosynthetic pathway. It is used an immunosuppressive agent in the treatment of RHEUMATOID ARTHRITIS and PSORIATIC ARTHRITIS.. leflunomide : A monocarboxylic acid amide obtained by formal condensation of the carboxy group of 5-methyl-1,2-oxazole-4-carboxylic acid with the anilino group of 4-(trifluoromethyl)aniline. The prodrug of teriflunomide.	3.23	1	0	(trifluoromethyl)benzenes; isoxazoles; monocarboxylic acid amide	antineoplastic agent; antiparasitic agent; EC 1.3.98.1 [dihydroorotate oxidase (fumarate)] inhibitor; EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor; hepatotoxic agent; immunosuppressive agent; non-steroidal anti-inflammatory drug; prodrug; pyrimidine synthesis inhibitor; tyrosine kinase inhibitor
letrozole [no description available]	3.58	2	0	nitrile; triazoles	antineoplastic agent; EC 1.14.14.14 (aromatase) inhibitor
lomefloxacin lomefloxacin: structure given in first source. lomefloxacin : A fluoroquinolone antibiotic, used (generally as the hydrochloride salt) to treat bacterial infections including bronchitis and urinary tract infections. It is also used to prevent urinary tract infections prior to surgery.	3.56	2	0	fluoroquinolone antibiotic; N-arylpiperazine; quinolinemonocarboxylic acid; quinolone antibiotic; quinolone	antimicrobial agent; antitubercular agent; photosensitizing agent
lomustine [no description available]	3.23	1	0	N-nitrosoureas; organochlorine compound	alkylating agent; antineoplastic agent
loperamide Loperamide: One of the long-acting synthetic ANTIDIARRHEALS; it is not significantly absorbed from the gut, and has no effect on the adrenergic system or central nervous system, but may antagonize histamine and interfere with acetylcholine release locally.. loperamide : A synthetic piperidine derivative, effective against diarrhoea resulting from gastroenteritis or inflammatory bowel disease.	8.49	2	0	monocarboxylic acid amide; monochlorobenzenes; piperidines; tertiary alcohol	anticoronaviral agent; antidiarrhoeal drug; mu-opioid receptor agonist
loratadine Loratadine: A second-generation histamine H1 receptor antagonist used in the treatment of allergic rhinitis and urticaria. Unlike most classical antihistamines (HISTAMINE H1 ANTAGONISTS) it lacks central nervous system depressing effects such as drowsiness.. loratadine : A benzocycloheptapyridine that is 6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine substituted by a chloro group at position 8 and a 1-(ethoxycarbonyl)piperidin-4-ylidene group at position 11. It is a H1-receptor antagonist commonly employed in the treatment of allergic disorders.	3.56	2	0	benzocycloheptapyridine; ethyl ester; N-acylpiperidine; organochlorine compound; tertiary carboxamide	anti-allergic agent; cholinergic antagonist; geroprotector; H1-receptor antagonist
lorazepam Lorazepam: A benzodiazepine used as an anti-anxiety agent with few side effects. It also has hypnotic, anticonvulsant, and considerable sedative properties and has been proposed as a preanesthetic agent.	4.01	4	0	benzodiazepine
losartan Losartan: An antagonist of ANGIOTENSIN TYPE 1 RECEPTOR with antihypertensive activity due to the reduced pressor effect of ANGIOTENSIN II.. losartan : A biphenylyltetrazole where a 1,1'-biphenyl group is attached at the 5-position and has an additional trisubstituted imidazol-1-ylmethyl group at the 4'-position	3.84	3	0	biphenylyltetrazole; imidazoles	angiotensin receptor antagonist; anti-arrhythmia drug; antihypertensive agent; endothelin receptor antagonist
loxapine Loxapine: An antipsychotic agent used in SCHIZOPHRENIA.	3.56	2	0	dibenzooxazepine	antipsychotic agent; dopaminergic antagonist
maprotiline Maprotiline: A bridged-ring tetracyclic antidepressant that is both mechanistically and functionally similar to the tricyclic antidepressants, including side effects associated with its use.	3.84	3	0	anthracenes
mebendazole Mebendazole: A benzimidazole that acts by interfering with CARBOHYDRATE METABOLISM and inhibiting polymerization of MICROTUBULES.. mebendazole : A carbamate ester that is methyl 1H-benzimidazol-2-ylcarbamate substituted by a benzoyl group at position 5.	3.84	3	0	aromatic ketone; benzimidazoles; carbamate ester	antinematodal drug; microtubule-destabilising agent; tubulin modulator
mecamylamine Mecamylamine: A nicotinic antagonist that is well absorbed from the gastrointestinal tract and crosses the blood-brain barrier. Mecamylamine has been used as a ganglionic blocker in treating hypertension, but, like most ganglionic blockers, is more often used now as a research tool.	3.23	1	0	primary aliphatic amine
mechlorethamine nitrogen mustard : Compounds having two beta-haloalkyl groups bound to a nitrogen atom, as in (X-CH2-CH2)2NR.	3.23	1	0	nitrogen mustard; organochlorine compound	alkylating agent
meclizine Meclizine: A histamine H1 antagonist used in the treatment of motion sickness, vertigo, and nausea during pregnancy and radiation sickness.	3.23	1	0	diarylmethane
meclofenamic acid Meclofenamic Acid: A non-steroidal anti-inflammatory agent with antipyretic and antigranulation activities. It also inhibits prostaglandin biosynthesis.. meclofenamic acid : An aminobenzoic acid that is anthranilic acid in which one of the hydrogens attached to the nitrogen is replaced by a 2,6-dichloro-3-methylphenyl group. A non-steroidal anti-inflammatory drug, it is used as the sodium salt for the treatment of dysmenorrhoea (painful periods), osteoarthritis and rheumatoid arthritis.	3.56	2	0	aminobenzoic acid; organochlorine compound; secondary amino compound	analgesic; anticonvulsant; antineoplastic agent; antipyretic; antirheumatic drug; EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; non-steroidal anti-inflammatory drug
mefenamic acid Mefenamic Acid: A non-steroidal anti-inflammatory agent with analgesic, anti-inflammatory, and antipyretic properties. It is an inhibitor of cyclooxygenase.. mefenamic acid : An aminobenzoic acid that is anthranilic acid in which one of the hydrogens attached to the nitrogen is replaced by a 2,3-dimethylphenyl group. Although classed as a non-steroidal anti-inflammatory drug, its anti-inflammatory properties are considered to be minor. It is used to relieve mild to moderate pain, including headaches, dental pain, osteoarthritis and rheumatoid arthritis.	3.56	2	0	aminobenzoic acid; secondary amino compound	analgesic; antipyretic; antirheumatic drug; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; environmental contaminant; non-steroidal anti-inflammatory drug; xenobiotic
mefloquine hydrochloride [2,8-bis(trifluoromethyl)quinolin-4-yl]-(2-piperidyl)methanol : An organofluorine compound that consists of quinoline bearing trifluoromethyl substituents at positions 2 and 8 as well as a (2-piperidinyl)hydroxymethyl substituent at position 4.	2.02	1	0	organofluorine compound; piperidines; quinolines; secondary alcohol
memantine [no description available]	3.23	1	0	adamantanes; primary aliphatic amine	antidepressant; antiparkinson drug; dopaminergic agent; neuroprotective agent; NMDA receptor antagonist
mepenzolate mepenzolic acid: anticholinergic, antispasmodic agent; RN given refers to parent cpd; structure	3.23	1	0	diarylmethane
meperidine Meperidine: A narcotic analgesic that can be used for the relief of most types of moderate to severe pain, including postoperative pain and the pain of labor. Prolonged use may lead to dependence of the morphine type; withdrawal symptoms appear more rapidly than with morphine and are of shorter duration.. pethidine : A piperidinecarboxylate ester that is piperidine which is substituted by a methyl group at position 1 and by phenyl and ethoxycarbonyl groups at position 4. It is an analgesic which is used for the treatment of moderate to severe pain, including postoperative pain and labour pain.	9.19	41	7	ethyl ester; piperidinecarboxylate ester; tertiary amino compound	antispasmodic drug; kappa-opioid receptor agonist; mu-opioid receptor agonist; opioid analgesic
mephenytoin Mephenytoin: An anticonvulsant effective in tonic-clonic epilepsy (EPILEPSY, TONIC-CLONIC). It may cause blood dyscrasias.. mephenytoin : An imidazolidine-2,4-dione (hydantoin) in which the imidazolidine nucleus carries a methyl group at N-3 and has ethyl and phenyl substituents at C-5. An anticonvulsant, it is no longer available in the USA or the UK but is still studied largely because of its interesting hydroxylation polymorphism.	3.23	1	0	imidazolidine-2,4-dione	anticonvulsant
mepivacaine Mepivacaine: A local anesthetic that is chemically related to BUPIVACAINE but pharmacologically related to LIDOCAINE. It is indicated for infiltration, nerve block, and epidural anesthesia. Mepivacaine is effective topically only in large doses and therefore should not be used by this route. (From AMA Drug Evaluations, 1994, p168). mepivacaine : A piperidinecarboxamide in which N-methylpipecolic acid and 2,6-dimethylaniline have combined to form the amide bond. It is used as a local amide-type anaesthetic.	4.01	4	0	piperidinecarboxamide	drug allergen; local anaesthetic
meprobamate Meprobamate: A carbamate with hypnotic, sedative, and some muscle relaxant properties, although in therapeutic doses reduction of anxiety rather than a direct effect may be responsible for muscle relaxation. Meprobamate has been reported to have anticonvulsant actions against petit mal seizures, but not against grand mal seizures (which may be exacerbated). It is used in the treatment of ANXIETY DISORDERS, and also for the short-term management of INSOMNIA but has largely been superseded by the BENZODIAZEPINES. (From Martindale, The Extra Pharmacopoeia, 30th ed, p603)	3.58	2	0	organic molecular entity
mesalamine Mesalamine: An anti-inflammatory agent, structurally related to the SALICYLATES, which is active in INFLAMMATORY BOWEL DISEASE. It is considered to be the active moiety of SULPHASALAZINE. (From Martindale, The Extra Pharmacopoeia, 30th ed). mesalamine : A monohydroxybenzoic acid that is salicylic acid substituted by an amino group at the 5-position.	3.84	3	0	amino acid; aromatic amine; monocarboxylic acid; monohydroxybenzoic acid; phenols	non-steroidal anti-inflammatory drug
mesoridazine Mesoridazine: A phenothiazine antipsychotic with effects similar to CHLORPROMAZINE.. mesoridazine : A phenothiazine substituted at position 2 (para to the S atom) by a methylsulfinyl group, and on the nitrogen by a 2-(1-methylpiperidin-2-yl)ethyl group.	3.23	1	0	phenothiazines; sulfoxide; tertiary amino compound	dopaminergic antagonist; first generation antipsychotic
metaproterenol Metaproterenol: A beta-2 adrenergic agonist used in the treatment of ASTHMA and BRONCHIAL SPASM.. orciprenaline : A racemate composed of equimolar amounts of (R)- and (S)-orciprenaline. Used (as its sulfate salt) to relax the airway muscles and improve breathing for patients suffering from asthma or bronchitis.. 5-[1-hydroxy-2-(isopropanylamino)ethyl]benzene-1,3-diol : A member of the class of resorcinols bearing an additional 1-hydroxy-2-(isopropanylamino)ethyl substituent at position 5 of resorcinol itself.	3.23	1	0	aralkylamino compound; phenylethanolamines; resorcinols; secondary alcohol; secondary amino compound
metformin Metformin: A biguanide hypoglycemic agent used in the treatment of non-insulin-dependent diabetes mellitus not responding to dietary modification. Metformin improves glycemic control by improving insulin sensitivity and decreasing intestinal absorption of glucose. (From Martindale, The Extra Pharmacopoeia, 30th ed, p289). metformin : A member of the class of guanidines that is biguanide the carrying two methyl substituents at position 1.	3.84	3	0	guanidines	environmental contaminant; geroprotector; hypoglycemic agent; xenobiotic
methadone Methadone: A synthetic opioid that is used as the hydrochloride. It is an opioid analgesic that is primarily a mu-opioid agonist. It has actions and uses similar to those of MORPHINE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1082-3). methadone : A racemate comprising equimolar amounts of dextromethadone and levomethadone. It is a opioid analgesic which is used as a painkiller and as a substitute for heroin in the treatment of heroin addiction.. 6-(dimethylamino)-4,4-diphenylheptan-3-one : A ketone that is heptan-3-one substituted by a dimethylamino group at position 6 and two phenyl groups at position 4.	7.28	7	1	benzenes; diarylmethane; ketone; tertiary amino compound
methapyrilene Methapyrilene: Histamine H1 antagonist with sedative action used as a hypnotic and in allergies.. methapyrilene : A member of the class of ethylenediamine derivatives that is ethylenediamine in which one of the nitrogens is substituted by two methyl groups, and the other nitrogen is substituted by a 2-pyridyl group and a (2-thienyl)methyl group.	2.04	1	0	ethylenediamine derivative	anti-allergic agent; carcinogenic agent; H1-receptor antagonist; sedative
metharbital metharbital: was heading 1976-94 (see under BARBITURATES 1976-90); ENDIEMAL, METHARBITONE, & METHOBARBITONE were see METHARBITAL 1976-94; use BARBITURATES to search METHARBITAL 1976-94; long-acting barbiturate that is demethylated to barbital in the liver; has broad-spectrum anticonvulsant action, but used mainly to treat myoclonic spasms in infants	2.36	2	0	organic molecular entity
methazolamide Methazolamide: A carbonic anhydrase inhibitor that is used as a diuretic and in the treatment of glaucoma.	3.23	1	0	sulfonamide; thiadiazoles
methocarbamol Methocarbamol: A centrally acting muscle relaxant whose mode of action has not been established. It is used as an adjunct in the symptomatic treatment of musculoskeletal conditions associated with painful muscle spasm. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1206). methocarbamol : A racemate comprising equimolar amounts of (R)- and (S)-methocarbamol. A centrally acting skeletal muscle relaxant, it is used as an adjunct in the short-term symptomatic treatment of painful muscle spasm. The (R)-enantiomer is more active than the (S)-enantiomer.. 2-hydroxy-3-(2-methoxyphenoxy)propyl carbamate : A carbamate ester that is glycerol in which one of the primary alcohol groups has been converted to its 2-methoxyphenyl ether while the other has been converted to the corresponding carbamate ester.	3.51	2	0	aromatic ether; carbamate ester; secondary alcohol
methoxsalen Methoxsalen: A naturally occurring furocoumarin compound found in several species of plants, including Psoralea corylifolia. It is a photoactive substance that forms DNA ADDUCTS in the presence of ultraviolet A irradiation.. methoxsalen : A member of the class of psoralens that is 7H-furo[3,2-g]chromen-7-one in which the 9 position is substituted by a methoxy group. It is a constituent of the fruits of Ammi majus. Like other psoralens, trioxsalen causes photosensitization of the skin. It is administered topically or orally in conjunction with UV-A for phototherapy treatment of vitiligo and severe psoriasis.	3.23	1	0	aromatic ether; psoralens	antineoplastic agent; cross-linking reagent; dermatologic drug; photosensitizing agent; plant metabolite
methoxyflurane Methoxyflurane: An inhalation anesthetic. Currently, methoxyflurane is rarely used for surgical, obstetric, or dental anesthesia. If so employed, it should be administered with NITROUS OXIDE to achieve a relatively light level of anesthesia, and a neuromuscular blocking agent given concurrently to obtain the desired degree of muscular relaxation. (From AMA Drug Evaluations Annual, 1994, p180). methoxyflurane : An ether in which the two groups attached to the central oxygen atom are methyl and 2,2-dichloro-1,1-difluoroethyl.	6.4	18	0	ether; organochlorine compound; organofluorine compound	hepatotoxic agent; inhalation anaesthetic; nephrotoxic agent; non-narcotic analgesic
methyclothiazide Methyclothiazide: A thiazide diuretic with properties similar to those of HYDROCHLOROTHIAZIDE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p825)	3.23	1	0	benzothiadiazine
methylphenidate Methylphenidate: A central nervous system stimulant used most commonly in the treatment of ATTENTION DEFICIT DISORDER in children and for NARCOLEPSY. Its mechanisms appear to be similar to those of DEXTROAMPHETAMINE. The d-isomer of this drug is referred to as DEXMETHYLPHENIDATE HYDROCHLORIDE.. methylphenidate : A racemate comprising equimolar amounts of the two threo isomers of methyl phenyl(piperidin-2-yl)acetate. A central stimulant and indirect-acting sympathomimetic, is used (generally as the hydrochloride salt) in the treatment of hyperactivity disorders in children and for the treatment of narcolepsy.. methyl phenyl(piperidin-2-yl)acetate : A amino acid ester that is methyl phenylacetate in which one of the hydrogens alpha to the carbonyl group is replaced by a piperidin-2-yl group.	8.99	4	0	beta-amino acid ester; methyl ester; piperidines
metoclopramide Metoclopramide: A dopamine D2 antagonist that is used as an antiemetic.. metoclopramide : A member of the class of benzamides resulting from the formal condensation of 4-amino-5-chloro-2-methoxybenzoic acid with the primary amino group of N,N-diethylethane-1,2-diamine.	3.84	3	0	benzamides; monochlorobenzenes; substituted aniline; tertiary amino compound	antiemetic; dopaminergic antagonist; environmental contaminant; gastrointestinal drug; xenobiotic
metolazone Metolazone: A quinazoline-sulfonamide derived DIURETIC that functions by inhibiting SODIUM CHLORIDE SYMPORTERS.. metolazone : A quinazoline that consists of 1,2,3,4-tetrahydroquinazolin-4-one bearing additional methyl, 2-tolyl, sulfamyl and chloro substituents at positions 2, 3, 6 and 7 respectively. A quinazoline diuretic, with properties similar to thiazide diuretics.	3.58	2	0	organochlorine compound; quinazolines; sulfonamide	antihypertensive agent; diuretic; ion transport inhibitor
metoprolol Metoprolol: A selective adrenergic beta-1 blocking agent that is commonly used to treat ANGINA PECTORIS; HYPERTENSION; and CARDIAC ARRHYTHMIAS.. metoprolol : A propanolamine that is 1-(propan-2-ylamino)propan-2-ol substituted by a 4-(2-methoxyethyl)phenoxy group at position 1.	5.42	4	1	aromatic ether; propanolamine; secondary alcohol; secondary amino compound	antihypertensive agent; beta-adrenergic antagonist; environmental contaminant; geroprotector; xenobiotic
metronidazole Metronidazole: A nitroimidazole used to treat AMEBIASIS; VAGINITIS; TRICHOMONAS INFECTIONS; GIARDIASIS; ANAEROBIC BACTERIA; and TREPONEMAL INFECTIONS.. metronidazole : A member of the class of imidazoles substituted at C-1, -2 and -5 with 2-hydroxyethyl, nitro and methyl groups respectively. It has activity against anaerobic bacteria and protozoa, and has a radiosensitising effect on hypoxic tumour cells. It may be given by mouth in tablets, or as the benzoate in an oral suspension. The hydrochloride salt can be used in intravenous infusions. Metronidazole is a prodrug and is selective for anaerobic bacteria due to their ability to intracellularly reduce the nitro group of metronidazole to give nitroso-containing intermediates. These can covalently bind to DNA, disrupting its helical structure, inducing DNA strand breaks and inhibiting bacterial nucleic acid synthesis, ultimately resulting in bacterial cell death.	3.84	3	0	C-nitro compound; imidazoles; primary alcohol	antiamoebic agent; antibacterial drug; antimicrobial agent; antiparasitic agent; antitrichomonal drug; environmental contaminant; prodrug; radiosensitizing agent; xenobiotic
metyrapone Metyrapone: An inhibitor of the enzyme STEROID 11-BETA-MONOOXYGENASE. It is used as a test of the feedback hypothalamic-pituitary mechanism in the diagnosis of CUSHING SYNDROME.. metyrapone : An aromatic ketone that is 3,3-dimethylbutan-2-one in which the methyl groups at positions 1 and 4 are replaced by pyridin-3-yl groups. A steroid 11beta-monooxygenase (EC 1.14.15.4) inhibitor, it is used in the diagnosis of adrenal insufficiency.	3.23	1	0	aromatic ketone	antimetabolite; diagnostic agent; EC 1.14.15.4 (steroid 11beta-monooxygenase) inhibitor
mexiletine Mexiletine: Antiarrhythmic agent pharmacologically similar to LIDOCAINE. It may have some anticonvulsant properties.. mexiletine : An aromatic ether which is 2,6-dimethylphenyl ether of 2-aminopropan-1-ol.	3.84	3	0	aromatic ether; primary amino compound	anti-arrhythmia drug
midazolam Midazolam: A short-acting hypnotic-sedative drug with anxiolytic and amnestic properties. It is used in dentistry, cardiac surgery, endoscopic procedures, as preanesthetic medication, and as an adjunct to local anesthesia. The short duration and cardiorespiratory stability makes it useful in poor-risk, elderly, and cardiac patients. It is water-soluble at pH less than 4 and lipid-soluble at physiological pH.. midazolam : An imidazobenzodiazepine that is 4H-imidazo[1,5-a][1,4]benzodiazepine which is substituted by a methyl, 2-fluorophenyl and chloro groups at positions 1, 6 and 8, respectively.	13.51	62	24	imidazobenzodiazepine; monofluorobenzenes; organochlorine compound	anticonvulsant; antineoplastic agent; anxiolytic drug; apoptosis inducer; central nervous system depressant; GABAA receptor agonist; general anaesthetic; muscle relaxant; sedative
midodrine Midodrine: An ethanolamine derivative that is an adrenergic alpha-1 agonist. It is used as a vasoconstrictor agent in the treatment of HYPOTENSION.. midodrine : An aromatic ether that is 1,4-dimethoxybenzene which is substituted at position 2 by a 2-(glycylamino)-1-hydroxyethyl group. A direct-acting sympathomimetic with selective alpha-adrenergic agonist activity, it is used (generally as its hydrochloride salt) as a peripheral vasoconstrictor in the treatment of certain hypotensive states. The main active moiety is its major metabolite, deglymidodrine.	3.56	2	0	amino acid amide; aromatic ether; secondary alcohol	alpha-adrenergic agonist; prodrug; sympathomimetic agent; vasoconstrictor agent
milrinone [no description available]	3.58	2	0	bipyridines; nitrile; pyridone	cardiotonic drug; EC 3.1.4.17 (3',5'-cyclic-nucleotide phosphodiesterase) inhibitor; platelet aggregation inhibitor; vasodilator agent
minoxidil Minoxidil: A potent direct-acting peripheral vasodilator (VASODILATOR AGENTS) that reduces peripheral resistance and produces a fall in BLOOD PRESSURE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p371). minoxidil : A pyrimidine N-oxide that is pyrimidine-2,4-diamine 3-oxide substituted by a piperidin-1-yl group at position 6.	3.56	2	0	dialkylarylamine; tertiary amino compound
mirtazapine Mirtazapine: A piperazinoazepine tetracyclic compound that enhances the release of NOREPINEPHRINE and SEROTONIN through blockage of presynaptic ALPHA-2 ADRENERGIC RECEPTORS. It also blocks both 5-HT2 and 5-HT3 serotonin receptors and is a potent HISTAMINE H1 RECEPTOR antagonist. It is used for the treatment of depression, and may also be useful for the treatment of anxiety disorders.	3.84	3	0	benzazepine; tetracyclic antidepressant	alpha-adrenergic antagonist; anxiolytic drug; H1-receptor antagonist; histamine antagonist; oneirogen; serotonergic antagonist
mitotane Mitotane: A derivative of the insecticide DICHLORODIPHENYLDICHLOROETHANE that specifically inhibits cells of the adrenal cortex and their production of hormones. It is used to treat adrenocortical tumors and causes CNS damage, but no bone marrow depression.	3.23	1	0	diarylmethane
mitoxantrone Mitoxantrone: An anthracenedione-derived antineoplastic agent.. mitoxantrone : A dihydroxyanthraquinone that is 1,4-dihydroxy-9,10-anthraquinone which is substituted by 6-hydroxy-1,4-diazahexyl groups at positions 5 and 8.	3.84	3	0	dihydroxyanthraquinone	analgesic; antineoplastic agent
moclobemide Moclobemide: A reversible inhibitor of monoamine oxidase type A; (RIMA); (see MONOAMINE OXIDASE INHIBITORS) that has antidepressive properties.. moclobemide : A member of the class of benzamides that is benzamide substituted by a chloro group at position 4 and a 2-(morpholin-4-yl)ethyl group at the nitrogen atom. It acts as a reversible monoamine oxidase inhibitor and is used in the treatment of depression.	2.04	1	0	benzamides; monochlorobenzenes; morpholines	antidepressant; environmental contaminant; xenobiotic
modafinil Modafinil: A benzhydryl acetamide compound, central nervous system stimulant, and CYP3A4 inducing agent that is used in the treatment of NARCOLEPSY and SLEEP WAKE DISORDERS.. modafinil : A racemate comprising equimolar amounts of armodafinil and (S)-modafinil. A central nervous system stimulant, it is used for the treatment of sleeping disorders such as narcolepsy, obstructive sleep apnoea, and shift-work sleep disorder. The optical enantiomers of modafinil have similar pharmacological actions in animals.. 2-[(diphenylmethyl)sulfinyl]acetamide : A sulfoxide that is dimethylsulfoxide in which two hydrogens attached to one of the methyl groups are replaced by phenyl groups, while one hydrogen attached to the other methyl group is replaced by a carbamoyl (aminocarbonyl) group.	3.23	1	0	monocarboxylic acid amide; sulfoxide
moxisylyte Moxisylyte: An alpha-adrenergic blocking agent that is used in Raynaud's disease. It is also used locally in the eye to reverse the mydriasis caused by phenylephrine and other sympathomimetic agents. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1312)	3.23	1	0	monoterpenoid
muscimol Muscimol: A neurotoxic isoxazole isolated from species of AMANITA. It is obtained by decarboxylation of IBOTENIC ACID. Muscimol is a potent agonist of GABA-A RECEPTORS and is used mainly as an experimental tool in animal and tissue studies.. muscimol : A member of the class of isoxazoles that is 1,2-oxazol-3(2H)-one substituted by an aminomethyl group at position 5. It has been isolated from mushrooms of the genus Amanita.	1.99	1	0	alkaloid; isoxazoles; primary amino compound	fungal metabolite; GABA agonist; oneirogen; psychotropic drug
acecainide Acecainide: A major metabolite of PROCAINAMIDE. Its anti-arrhythmic action may cause cardiac toxicity in kidney failure.. N-acetylprocainamide : A benzamide obtained via formal condensation of 4-acetamidobenzoic acid and 2-(diethylamino)ethylamine.	2.04	1	0	acetamides; benzamides	anti-arrhythmia drug
apnea Apnea: A transient absence of spontaneous respiration.	13.28	16	7	purine nucleoside
nabumetone Nabumetone: A butanone non-steroidal anti-inflammatory drug and cyclooxygenase-2 (COX2) inhibitor that is used in the management of pain associated with OSTEOARTHRITIS and RHEUMATOID ARTHRITIS.. nabumetone : A methyl ketone that is 2-butanone in which one of the methyl hydrogens at position 4 is replaced by a 6-methoxy-2-naphthyl group. A prodrug that is converted to the active metabolite, 6-methoxy-2-naphthylacetic acid, following oral administration. It is shown to have a slightly lower risk of gastrointestinal side effects than most other non-steroidal anti-inflammatory drugs.	3.56	2	0	methoxynaphthalene; methyl ketone	cyclooxygenase 2 inhibitor; non-narcotic analgesic; non-steroidal anti-inflammatory drug; prodrug
nadolol [no description available]	3.23	1	0	tetralins
nalidixic acid [no description available]	3.23	1	0	1,8-naphthyridine derivative; monocarboxylic acid; quinolone antibiotic	antibacterial drug; antimicrobial agent; DNA synthesis inhibitor
naratriptan naratriptan: structure given in first source	3.58	2	0	heteroarylpiperidine; sulfonamide; tryptamines	serotonergic agonist; vasoconstrictor agent
nefazodone nefazodone: may be useful as an opiate adjunct	3.84	3	0	aromatic ether; monochlorobenzenes; N-alkylpiperazine; N-arylpiperazine; triazoles	alpha-adrenergic antagonist; analgesic; antidepressant; serotonergic antagonist; serotonin uptake inhibitor
nefopam Nefopam: Non-narcotic analgesic chemically similar to ORPHENADRINE. Its mechanism of action is unclear. It is used for the relief of acute and chronic pain. (From Martindale, The Extra Pharmacopoeia, 30th ed, p26). nefopam : A racemate comprising equal amounts of (R)- and (S)-nefopam. The hydrochloride is a centrally acting non-opiate analgesic commonly used for the treatment of moderate to severe pain.. 5-methyl-1-phenyl-3,4,5,6-tetrahydro-1H-2,5-benzoxazocine : A member of the class of benzoxazocines that is 3,4,5,6-tetrahydro-1H-2,5-benzoxazocine substituted by phenyl and methyl groups at positions 1 and 5 respectively.	2.04	1	0	benzoxazocine; tertiary amino compound
neostigmine Neostigmine: A cholinesterase inhibitor used in the treatment of myasthenia gravis and to reverse the effects of muscle relaxants such as gallamine and tubocurarine. Neostigmine, unlike PHYSOSTIGMINE, does not cross the blood-brain barrier.. neostigmine : A quaternary ammonium ion comprising an anilinium ion core having three methyl substituents on the aniline nitrogen, and a 3-[(dimethylcarbamoyl)oxy] substituent at position 3. It is a parasympathomimetic which acts as a reversible acetylcholinesterase inhibitor.	4.25	4	1	quaternary ammonium ion	antidote to curare poisoning; EC 3.1.1.7 (acetylcholinesterase) inhibitor
nevirapine Nevirapine: A potent, non-nucleoside reverse transcriptase inhibitor used in combination with nucleoside analogues for treatment of HIV INFECTIONS and AIDS.. nevirapine : A dipyridodiazepine that is 5,11-dihydro-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepine which is substituted by methyl, oxo, and cyclopropyl groups at positions 4, 6, and 11, respectively. A non-nucleoside reverse transcriptase inhibitor with activity against HIV-1, it is used in combination with other antiretrovirals for the treatment of HIV infection.	3.84	3	0	cyclopropanes; dipyridodiazepine	antiviral drug; HIV-1 reverse transcriptase inhibitor
nialamide Nialamide: An MAO inhibitor that is used as an antidepressive agent.	3.23	1	0	organonitrogen compound; organooxygen compound
nicardipine Nicardipine: A potent calcium channel blockader with marked vasodilator action. It has antihypertensive properties and is effective in the treatment of angina and coronary spasms without showing cardiodepressant effects. It has also been used in the treatment of asthma and enhances the action of specific antineoplastic agents.. nicardipine : A racemate comprising equimolar amounts of (R)- and (S)-nicardipine. It is a calcium channel blocker which is used to treat hypertension.. 2-[benzyl(methyl)amino]ethyl methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate : A dihydropyridine that is 1,4-dihydropyridine substituted by a methyl, {2-[benzyl(methyl)amino]ethoxy}carbonyl, 3-nitrophenyl, methoxycarbonyl and methyl groups at positions 2, 3, 4, 5 and 6, respectively.	5.43	4	1	benzenes; C-nitro compound; diester; dihydropyridine; methyl ester; tertiary amino compound
nifedipine Nifedipine: A potent vasodilator agent with calcium antagonistic action. It is a useful anti-anginal agent that also lowers blood pressure.	3.84	3	0	C-nitro compound; dihydropyridine; methyl ester	calcium channel blocker; human metabolite; tocolytic agent; vasodilator agent
nilutamide [no description available]	3.56	2	0	(trifluoromethyl)benzenes; C-nitro compound; imidazolidinone	androgen antagonist; antineoplastic agent
nimesulide nimesulide: structure. nimesulide : An aromatic ether having phenyl and 2-methylsulfonamido-5-nitrophenyl as the two aryl groups.	3.23	1	0	aromatic ether; C-nitro compound; sulfonamide	cyclooxygenase 2 inhibitor; non-steroidal anti-inflammatory drug
nimodipine Nimodipine: A calcium channel blockader with preferential cerebrovascular activity. It has marked cerebrovascular dilating effects and lowers blood pressure.. nimodipine : A dihydropyridine that is 1,4-dihydropyridine which is substituted by methyl groups at positions 2 and 6, a (2-methoxyethoxy)carbonyl group at position 3, a m-nitrophenyl group at position 4, and an isopropoxycarbonyl group at position 5. An L-type calcium channel blocker, it acts particularly on cerebral circulation, and is used both orally and intravenously for the prevention and treatment of subarachnoid hemorrhage from ruptured intracranial aneurysm.	4.22	5	0	2-methoxyethyl ester; C-nitro compound; dicarboxylic acids and O-substituted derivatives; diester; dihydropyridine; isopropyl ester	antihypertensive agent; calcium channel blocker; cardiovascular drug; vasodilator agent
nisoldipine Nisoldipine: A dihydropyridine calcium channel antagonist that acts as a potent arterial vasodilator and antihypertensive agent. It is also effective in patients with cardiac failure and angina.. nisoldipine : A racemate consisting of equimolar amounts of (R)- and (S)-nisoldipine. A calcium channel blocker, it is used in the treatment of hypertension and angina pectoris.. methyl 2-methylpropyl 2,6-dimethyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate : A dihydropyridine that is 1,4-dihydropyridine which is substituted by methyl groups at positions 2 and 6, a methoxycarbonyl group at position 3, an o-nitrophenyl group at position 4, and an isobutoxycarbonyl group at position 5. The racemate, a calcium channel blocker, is used in the treatment of hypertension and angina pectoris.	3.84	3	0	C-nitro compound; dicarboxylic acids and O-substituted derivatives; diester; dihydropyridine; methyl ester
nitrazepam Nitrazepam: A benzodiazepine derivative used as an anticonvulsant and hypnotic.. nitrazepam : A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one which is substituted at positions 5 and 7 by phenyl and nitro groups, respectively. It is used as a hypnotic for the short-term management of insomnia and for the treatment of epileptic spasms in infants (West's syndrome).	2.04	1	0	1,4-benzodiazepinone; C-nitro compound	anticonvulsant; antispasmodic drug; drug metabolite; GABA modulator; sedative
nitrendipine Nitrendipine: A calcium channel blocker with marked vasodilator action. It is an effective antihypertensive agent and differs from other calcium channel blockers in that it does not reduce glomerular filtration rate and is mildly natriuretic, rather than sodium retentive.. nitrendipine : A dihydropyridine that is 1,4-dihydropyridine substituted by methyl groups at positions 2 and 6, a 3-nitrophenyl group at position 4, a ethoxycarbonyl group at position 3 and a methoxycarbonyl group at position 5. It is a calcium-channel blocker used in the treatment of hypertension.	2.04	1	0	C-nitro compound; dicarboxylic acids and O-substituted derivatives; diester; dihydropyridine; ethyl ester; methyl ester	antihypertensive agent; calcium channel blocker; geroprotector; vasodilator agent
nitroglycerin Nitroglycerin: A volatile vasodilator which relieves ANGINA PECTORIS by stimulating GUANYLATE CYCLASE and lowering cytosolic calcium. It is also sometimes used for TOCOLYSIS and explosives.. nitroglycerol : A nitrate ester that is glycerol in which nitro group(s) replace the hydrogen(s) attached to one or more of the hydroxy groups.. nitroglycerin : A nitroglycerol that is glycerol in which the hydrogen atoms of all three hydroxy groups are replaced by nitro groups. It acts as a prodrug, releasing nitric oxide to open blood vessels and so alleviate heart pain.	3.23	1	0	nitroglycerol	explosive; muscle relaxant; nitric oxide donor; prodrug; tocolytic agent; vasodilator agent; xenobiotic
nizatidine [no description available]	3.84	3	0	1,3-thiazoles; C-nitro compound; carboxamidine; organic sulfide; tertiary amino compound	anti-ulcer drug; cholinergic drug; H2-receptor antagonist
nomifensine Nomifensine: An isoquinoline derivative that prevents dopamine reuptake into synaptosomes. The maleate was formerly used in the treatment of depression. It was withdrawn worldwide in 1986 due to the risk of acute hemolytic anemia with intravascular hemolysis resulting from its use. In some cases, renal failure also developed. (From Martindale, The Extra Pharmacopoeia, 30th ed, p266). nomifensine : An N-methylated tetrahydroisoquinoline carrying phenyl and amino substituents at positions C-4 and C-8, respectively.	3.58	2	0	isoquinolines	dopamine uptake inhibitor
masoprocol nordihydroguaretic acid: antioxidant compound found in the creosote bush (Larrea tridentata)	2.02	1	0	catechols; lignan; tetrol	antioxidant; ferroptosis inhibitor; geroprotector; plant metabolite
norfloxacin Norfloxacin: A synthetic fluoroquinolone (FLUOROQUINOLONES) with broad-spectrum antibacterial activity against most gram-negative and gram-positive bacteria. Norfloxacin inhibits bacterial DNA GYRASE.. norfloxacin : A quinolinemonocarboxylic acid with broad-spectrum antibacterial activity against most gram-negative and gram-positive bacteria. Norfloxacin is bactericidal and its mode of action depends on blocking of bacterial DNA replication by binding itself to an enzyme called DNA gyrase.	3.56	2	0	fluoroquinolone antibiotic; N-arylpiperazine; quinolinemonocarboxylic acid; quinolone antibiotic; quinolone	antibacterial drug; DNA synthesis inhibitor; environmental contaminant; xenobiotic
nortriptyline Nortriptyline: A metabolite of AMITRIPTYLINE that is also used as an antidepressive agent. Nortriptyline is used in major depression, dysthymia, and atypical depressions.. nortriptyline : An organic tricyclic compound that is 10,11-dihydro-5H-dibenzo[a,d][7]annulene substituted by a 3-(methylamino)propylidene group at position 5. It is an active metabolite of amitriptyline.	3.84	3	0	organic tricyclic compound; secondary amine	adrenergic uptake inhibitor; analgesic; antidepressant; antineoplastic agent; apoptosis inducer; drug metabolite
ofloxacin Ofloxacin: A synthetic fluoroquinolone antibacterial agent that inhibits the supercoiling activity of bacterial DNA GYRASE, halting DNA REPLICATION.. 9-fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid : An oxazinoquinoline that is 2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinolin-7-one substituted by methyl, carboxy, fluoro, and 4-methylpiperazin-1-yl groups at positions 3, 6, 9, and 10, respectively.. ofloxacin : A racemate comprising equimolar amounts of levofloxacin and dextrofloxacin. It is a synthetic fluoroquinolone antibacterial agent which inhibits the supercoiling activity of bacterial DNA gyrase, halting DNA replication.	3.84	3	0	3-oxo monocarboxylic acid; N-arylpiperazine; N-methylpiperazine; organofluorine compound; oxazinoquinoline
omeprazole Omeprazole: A 4-methoxy-3,5-dimethylpyridyl, 5-methoxybenzimidazole derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits an H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS.. omeprazole : A racemate comprising equimolar amounts of (R)- and (S)-omeprazole.. 5-methoxy-2-{[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl}-1H-benzimidazole : A member of the class of benzimidazoles that is 1H-benzimidazole which is substituted by a [4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl group at position 2 and a methoxy group at position 5.	3.84	3	0	aromatic ether; benzimidazoles; pyridines; sulfoxide
ondansetron Ondansetron: A competitive serotonin type 3 receptor antagonist. It is effective in the treatment of nausea and vomiting caused by cytotoxic chemotherapy drugs, including cisplatin, and has reported anxiolytic and neuroleptic properties.	3.84	3	0	carbazoles
orphenadrine Orphenadrine: A muscarinic antagonist used to treat drug-induced parkinsonism and to relieve pain from muscle spasm.. orphenadrine : A tertiary amino compound which is the phenyl-o-tolylmethyl ether of 2-(dimethylamino)ethanol.	3.23	1	0	ether; tertiary amino compound	antidyskinesia agent; antiparkinson drug; H1-receptor antagonist; muscarinic antagonist; muscle relaxant; NMDA receptor antagonist; parasympatholytic
oxaprozin Oxaprozin: An oxazole-propionic acid derivative, cyclooxygenase inhibitor, and non-steroidal anti-inflammatory drug that is used in the treatment of pain and inflammation associated with of OSTEOARTHRITIS; RHEUMATOID ARTHRITIS; and ARTHRITIS, JUVENILE.. oxaprozin : A monocarboxylic acid that is a propionic acid derivative having a 4,5-diphenyl-1,3-oxazol-2-yl substituent at position 3. It is non-steroidal anti-inflammatory drug commonly used to relieve the pain and inflammatory responses associated with osteoarthritis and rheumatoid arthritis.	3.56	2	0	1,3-oxazoles; monocarboxylic acid	analgesic; non-steroidal anti-inflammatory drug
oxazepam Oxazepam: A benzodiazepine used in the treatment of anxiety, alcohol withdrawal, and insomnia.. oxazepam : A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one substituted by a chloro group at position 7, a hydroxy group at position 3 and phenyl group at position 5.	3.58	2	0	1,4-benzodiazepinone; organochlorine compound	anxiolytic drug; environmental contaminant; xenobiotic
oxidopamine Oxidopamine: A neurotransmitter analogue that depletes noradrenergic stores in nerve endings and induces a reduction of dopamine levels in the brain. Its mechanism of action is related to the production of cytolytic free-radicals.. oxidopamine : A benzenetriol that is phenethylamine in which the hydrogens at positions 2, 4, and 5 on the phenyl ring are replaced by hydroxy groups. It occurs naturally in human urine, but is also produced as a metabolite of the drug DOPA (used for the treatment of Parkinson's disease).	1.96	1	0	benzenetriol; catecholamine; primary amino compound	drug metabolite; human metabolite; neurotoxin
oxiracetam oxiracetam: structure in first source	2.04	1	0	organonitrogen compound; organooxygen compound
oxybutynin oxybutynin: RN given refers to parent cpd. oxybutynin : A racemate comprising equimolar amounts of (R)-oxybutynin and esoxybutynin. An antispasmodic used for the treatment of overactive bladder.	3.58	2	0	acetylenic compound; carboxylic ester; racemate; tertiary alcohol; tertiary amino compound	antispasmodic drug; calcium channel blocker; local anaesthetic; muscarinic antagonist; muscle relaxant; parasympatholytic
aminosalicylic acid Aminosalicylic Acid: An antitubercular agent often administered in association with ISONIAZID. The sodium salt of the drug is better tolerated than the free acid.. 4-aminosalicylic acid : An aminobenzoic acid that is salicylic acid substituted by an amino group at position 4.	3.23	1	0	aminobenzoic acid; phenols	antitubercular agent
pamidronate [no description available]	3.84	3	0	phosphonoacetic acid
pantoprazole Pantoprazole: 2-pyridinylmethylsulfinylbenzimidazole proton pump inhibitor that is used in the treatment of GASTROESOPHAGEAL REFLUX and PEPTIC ULCER.. pantoprazole : A member of the class of benzimidazoles that is 1H-benzimidazole substituted by a difluoromethoxy group at position 5 and a [(3,4-dimethoxypyridin-2-yl)methyl]sulfinyl group at position 2.	3.58	2	0	aromatic ether; benzimidazoles; organofluorine compound; pyridines; sulfoxide	anti-ulcer drug; EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor; environmental contaminant; xenobiotic
papaverine Papaverine: An alkaloid found in opium but not closely related to the other opium alkaloids in its structure or pharmacological actions. It is a direct-acting smooth muscle relaxant used in the treatment of impotence and as a vasodilator, especially for cerebral vasodilation. The mechanism of its pharmacological actions is not clear, but it apparently can inhibit phosphodiesterases and it may have direct actions on calcium channels.. papaverine : A benzylisoquinoline alkaloid that is isoquinoline substituted by methoxy groups at positions 6 and 7 and a 3,4-dimethoxybenzyl group at position 1. It has been isolated from Papaver somniferum.	3.99	4	0	benzylisoquinoline alkaloid; dimethoxybenzene; isoquinolines	antispasmodic drug; vasodilator agent
pemoline Pemoline: A central nervous system stimulant used in fatigue and depressive states and to treat hyperkinetic disorders in children.. pemoline : A member of the class of 1,3-oxazoles that is 1,3-oxazol-4(5H)-one which is substituted by an amino group at position 2 and by a phenyl group at position 5. A central nervous system stimulant, it was used to treat hyperactivity disorders in children, but withdrawn from use following reports of serious hepatotoxicity.	3.56	2	0	1,3-oxazoles	central nervous system stimulant
pentamidine Pentamidine: Antiprotozoal agent effective in trypanosomiasis, leishmaniasis, and some fungal infections; used in treatment of PNEUMOCYSTIS pneumonia in HIV-infected patients. It may cause diabetes mellitus, central nervous system damage, and other toxic effects.. pentamidine : A diether consisting of pentane-1,5-diol in which both hydroxyl hydrogens have been replaced by 4-amidinophenyl groups. A trypanocidal drug that is used for treatment of cutaneous leishmaniasis and Chagas disease.	3.84	3	0	aromatic ether; carboxamidine; diether	anti-inflammatory agent; antifungal agent; calmodulin antagonist; chemokine receptor 5 antagonist; EC 2.3.1.48 (histone acetyltransferase) inhibitor; NMDA receptor antagonist; S100 calcium-binding protein B inhibitor; trypanocidal drug; xenobiotic
pentobarbital Pentobarbital: A short-acting barbiturate that is effective as a sedative and hypnotic (but not as an anti-anxiety) agent and is usually given orally. It is prescribed more frequently for sleep induction than for sedation but, like similar agents, may lose its effectiveness by the second week of continued administration. (From AMA Drug Evaluations Annual, 1994, p236). pentobarbital : A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at C-5 by ethyl and sec-pentyl groups.	9.31	88	2	barbiturates	GABAA receptor agonist
pentoxifylline [no description available]	3.84	3	0	oxopurine
perhexiline Perhexiline: 2-(2,2-Dicyclohexylethyl)piperidine. Coronary vasodilator used especially for angina of effort. It may cause neuropathy and hepatitis.	3.23	1	0	piperidines	cardiovascular drug
perphenazine Perphenazine: An antipsychotic phenothiazine derivative with actions and uses similar to those of CHLORPROMAZINE.. perphenazine : A phenothiazine derivative in which the phenothiazine tricycle carries a chloro substituent at the 2-position and a 3-[4-(2-hydroxyethyl)piperazin-1-yl]propyl group at N-10.	4.17	5	0	N-(2-hydroxyethyl)piperazine; N-alkylpiperazine; organochlorine compound; phenothiazines	antiemetic; dopaminergic antagonist; phenothiazine antipsychotic drug
phenacetin Saridon: contains phenacetin, caffeine, propyphenazone & pyrithyldione	2.04	1	0	acetamides; aromatic ether	cyclooxygenase 3 inhibitor; non-narcotic analgesic; peripheral nervous system drug
phenobarbital Phenobarbital: A barbituric acid derivative that acts as a nonselective central nervous system depressant. It potentiates GAMMA-AMINOBUTYRIC ACID action on GABA-A RECEPTORS, and modulates chloride currents through receptor channels. It also inhibits glutamate induced depolarizations.. phenobarbital : A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at C-5 by ethyl and phenyl groups.	7.16	28	0	barbiturates	anticonvulsant; drug allergen; excitatory amino acid antagonist; sedative
phenoxybenzamine Phenoxybenzamine: An alpha-adrenergic antagonist with long duration of action. It has been used to treat hypertension and as a peripheral vasodilator.	3.23	1	0	aromatic amine
phentermine Phentermine: A central nervous system stimulant and sympathomimetic with actions and uses similar to those of DEXTROAMPHETAMINE. It has been used most frequently in the treatment of obesity.	3.23	1	0	primary amine	adrenergic agent; appetite depressant; central nervous system drug; central nervous system stimulant; dopaminergic agent; sympathomimetic agent
4-phenylbutyric acid 4-phenylbutyric acid: RN refers to the parent cpd. 4-phenylbutyric acid : A monocarboxylic acid the structure of which is that of butyric acid substituted with a phenyl group at C-4. It is a histone deacetylase inhibitor that displays anticancer activity. It inhibits cell proliferation, invasion and migration and induces apoptosis in glioma cells. It also inhibits protein isoprenylation, depletes plasma glutamine, increases production of foetal haemoglobin through transcriptional activation of the gamma-globin gene and affects hPPARgamma activation.	3.23	1	0	monocarboxylic acid	antineoplastic agent; apoptosis inducer; EC 3.5.1.98 (histone deacetylase) inhibitor; prodrug
phenylbutazone Phenylbutazone: A butyl-diphenyl-pyrazolidinedione that has anti-inflammatory, antipyretic, and analgesic activities. It has been used in ANKYLOSING SPONDYLITIS; RHEUMATOID ARTHRITIS; and REACTIVE ARTHRITIS.. phenylbutazone : A member of the class of pyrazolidines that is 1,2-diphenylpyrazolidine-3,5-dione carrying a butyl group at the 4-position.	2.34	2	0	pyrazolidines	antirheumatic drug; EC 1.1.1.184 [carbonyl reductase (NADPH)] inhibitor; metabolite; non-narcotic analgesic; non-steroidal anti-inflammatory drug; peripheral nervous system drug
phloretin [no description available]	1.95	1	0	dihydrochalcones	antineoplastic agent; plant metabolite
moxonidine moxonidine: structure given in first source	2.04	1	0	organohalogen compound; pyrimidines
pimobendan pimobendan: produces arterial & venous dilatation in dogs; structure given in first source	2.04	1	0	benzimidazoles; pyridazinone	cardiotonic drug; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; vasodilator agent
pindolol Pindolol: A moderately lipophilic beta blocker (ADRENERGIC BETA-ANTAGONISTS). It is non-cardioselective and has intrinsic sympathomimetic actions, but little membrane-stabilizing activity. (From Martindale, The Extra Pharmocopoeia, 30th ed, p638). pindolol : A member of the class of indols which is the 2-hydroxy-3-(isopropylamino)propyl ether derivative of 1H-indol-4-ol.	3.84	3	0	indoles; secondary amine	antiglaucoma drug; antihypertensive agent; beta-adrenergic antagonist; serotonergic antagonist; vasodilator agent
pioglitazone Pioglitazone: A thiazolidinedione and PPAR GAMMA agonist that is used in the treatment of TYPE 2 DIABETES MELLITUS.. pioglitazone : A member of the class of thiazolidenediones that is 1,3-thiazolidine-2,4-dione substituted by a benzyl group at position 5 which in turn is substituted by a 2-(5-ethylpyridin-2-yl)ethoxy group at position 4 of the phenyl ring. It exhibits hypoglycemic activity.	3.23	1	0	aromatic ether; pyridines; thiazolidinediones	antidepressant; cardioprotective agent; EC 2.7.1.33 (pantothenate kinase) inhibitor; EC 6.2.1.3 (long-chain-fatty-acid--CoA ligase) inhibitor; ferroptosis inhibitor; geroprotector; hypoglycemic agent; insulin-sensitizing drug; PPARgamma agonist; xenobiotic
piracetam Piracetam: A compound suggested to be both a nootropic and a neuroprotective agent.	6.96	1	0	organonitrogen compound; organooxygen compound
pirbuterol pirbuterol: structure	2.02	1	0	pyridines
piretanide piretanide: potent inhibitor of chloride transport; structure	2.04	1	0	aromatic ether
polythiazide [no description available]	3.23	1	0	benzothiadiazine
potassium chloride Potassium Chloride: A white crystal or crystalline powder used in BUFFERS; FERTILIZERS; and EXPLOSIVES. It can be used to replenish ELECTROLYTES and restore WATER-ELECTROLYTE BALANCE in treating HYPOKALEMIA.. potassium chloride : A metal chloride salt with a K(+) counterion.	2.35	2	0	inorganic chloride; inorganic potassium salt; potassium salt	fertilizer
duodote duodote: consists of atropine and pralidoxime chloride; for treating those exposed to organophosphorus-containing nerve agents	3.23	1	0	pyridinium ion	antidote to organophosphate poisoning; antidote to sarin poisoning; cholinergic drug; cholinesterase reactivator
prazepam Prazepam: A benzodiazepine that is used in the treatment of ANXIETY DISORDERS.	2.02	1	0	benzodiazepine
praziquantel azinox: Russian drug	3.56	2	0	isoquinolines
prazosin Prazosin: A selective adrenergic alpha-1 antagonist used in the treatment of HEART FAILURE; HYPERTENSION; PHEOCHROMOCYTOMA; RAYNAUD DISEASE; PROSTATIC HYPERTROPHY; and URINARY RETENTION.. prazosin : A member of the class of piperazines that is piperazine substituted by a furan-2-ylcarbonyl group and a 4-amino-6,7-dimethoxyquinazolin-2-yl group at positions 1 and 4 respectively.	3.84	3	0	aromatic ether; furans; monocarboxylic acid amide; piperazines; quinazolines	alpha-adrenergic antagonist; antihypertensive agent; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
prilocaine Prilocaine: A local anesthetic that is similar pharmacologically to LIDOCAINE. Currently, it is used most often for infiltration anesthesia in dentistry.. prilocaine : An amino acid amide in which N-propyl-DL-alanine and 2-methylaniline have combined to form the amide bond; used as a local anaesthetic.	2.87	4	0	amino acid amide; monocarboxylic acid amide	anticonvulsant; local anaesthetic
primaquine Primaquine: An aminoquinoline that is given by mouth to produce a radical cure and prevent relapse of vivax and ovale malarias following treatment with a blood schizontocide. It has also been used to prevent transmission of falciparum malaria by those returning to areas where there is a potential for re-introduction of malaria. Adverse effects include anemias and GI disturbances. (From Martindale, The Extra Pharmacopeia, 30th ed, p404). primaquine : An N-substituted diamine that is pentane-1,4-diamine substituted by a 6-methoxyquinolin-8-yl group at the N(4) position. It is a drug used in the treatment of malaria and Pneumocystis pneumonia.	3.58	2	0	aminoquinoline; aromatic ether; N-substituted diamine	antimalarial
primidone Primidone: A barbiturate derivative that acts as a GABA modulator and anti-epileptic agent. It is partly metabolized to PHENOBARBITAL in the body and owes some of its actions to this metabolite.. primidone : A pyrimidone that is dihydropyrimidine-4,6(1H,5H)-dione substituted by an ethyl and a phenyl group at position 5. It is used as an anticonvulsant for treatment of various types of seizures.	3.56	2	0	pyrimidone	anticonvulsant; environmental contaminant; xenobiotic
probenecid Probenecid: The prototypical uricosuric agent. It inhibits the renal excretion of organic anions and reduces tubular reabsorption of urate. Probenecid has also been used to treat patients with renal impairment, and, because it reduces the renal tubular excretion of other drugs, has been used as an adjunct to antibacterial therapy.. probenecid : A sulfonamide in which the nitrogen of 4-sulfamoylbenzoic acid is substituted with two propyl groups.	3.84	3	0	benzoic acids; sulfonamide	uricosuric drug
procainamide Procainamide: A class Ia antiarrhythmic drug that is structurally-related to PROCAINE.. procainamide : A benzamide that is 4-aminobenzamide substituted on the amide N by a 2-(diethylamino)ethyl group. It is a pharmaceutical antiarrhythmic agent used for the medical treatment of cardiac arrhythmias.	4.02	4	0	benzamides	anti-arrhythmia drug; platelet aggregation inhibitor; sodium channel blocker
procaine Procaine: A local anesthetic of the ester type that has a slow onset and a short duration of action. It is mainly used for infiltration anesthesia, peripheral nerve block, and spinal block. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1016).. procaine : A benzoate ester, formally the result of esterification of 4-aminobenzoic acid with 2-diethylaminoethanol but formed experimentally by reaction of ethyl 4-aminobenzoate with 2-diethylaminoethanol.	2.35	2	0	benzoate ester; substituted aniline; tertiary amino compound	central nervous system depressant; drug allergen; local anaesthetic; peripheral nervous system drug
procarbazine Procarbazine: An antineoplastic agent used primarily in combination with mechlorethamine, vincristine, and prednisone (the MOPP protocol) in the treatment of Hodgkin's disease.. procarbazine : A benzamide obtained by formal condensation of the carboxy group of 4-[(2-methylhydrazino)methyl]benzoic acid with the amino group of isopropylamine. An antineoplastic chemotherapy drug used for treatment of Hodgkin's lymphoma. Metabolism yields azo-procarbazine and hydrogen peroxide, which results in the breaking of DNA strands.	3.56	2	0	benzamides; hydrazines	antineoplastic agent
prochlorperazine Prochlorperazine: A phenothiazine antipsychotic used principally in the treatment of NAUSEA; VOMITING; and VERTIGO. It is more likely than CHLORPROMAZINE to cause EXTRAPYRAMIDAL DISORDERS. (From Martindale, The Extra Pharmacopoeia, 30th ed, p612). prochlorperazine : A member of the class of phenothiazines that is 10H-phenothiazine having a chloro substituent at the 2-position and a 3-(4-methylpiperazin-1-yl)propyl group at the N-10 position.	3.78	3	0	N-alkylpiperazine; N-methylpiperazine; organochlorine compound; phenothiazines	alpha-adrenergic antagonist; antiemetic; cholinergic antagonist; dopamine receptor D2 antagonist; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; first generation antipsychotic
procyclidine Procyclidine: A muscarinic antagonist that crosses the blood-brain barrier and is used in the treatment of drug-induced extrapyramidal disorders and in parkinsonism.. procyclidine : A tertiary alcohol that consists of propan-1-ol substituted by a cyclohexyl and a phenyl group at position 1 and a pyrrolidin-1-yl group at position 3.	3.58	2	0	pyrrolidines; tertiary alcohol	antidyskinesia agent; antiparkinson drug; muscarinic antagonist
promazine Promazine: A phenothiazine with actions similar to CHLORPROMAZINE but with less antipsychotic activity. It is primarily used in short-term treatment of disturbed behavior and as an antiemetic.. promazine : A phenothiazine deriative in which the phenothiazine tricycle has a 3-(dimethylaminopropyl) group at the N-10 position.	2.65	3	0	phenothiazines; tertiary amine	antiemetic; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; H1-receptor antagonist; muscarinic antagonist; phenothiazine antipsychotic drug; serotonergic antagonist
promethazine Promethazine: A phenothiazine derivative with histamine H1-blocking, antimuscarinic, and sedative properties. It is used as an antiallergic, in pruritus, for motion sickness and sedation, and also in animals.. promethazine : A tertiary amine that is a substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropan-2-amine moiety.	11.87	12	2	phenothiazines; tertiary amine	anti-allergic agent; anticoronaviral agent; antiemetic; antipruritic drug; H1-receptor antagonist; local anaesthetic; sedative
propafenone Propafenone: An antiarrhythmia agent that is particularly effective in ventricular arrhythmias. It also has weak beta-blocking activity.. propafenone : An aromatic ketone that is 3-(propylamino)propane-1,2-diol in which the hydrogen of the primary hydroxy group is replaced by a 2-(3-phenylpropanoyl)phenyl group. It is a class 1C antiarrhythmic drug with local anesthetic effects, and is used as the hydrochloride salt in the management of supraventricular and ventricular arrhythmias.	3.84	3	0	aromatic ketone; secondary alcohol; secondary amino compound	anti-arrhythmia drug
propantheline Propantheline: A muscarinic antagonist used as an antispasmodic, in rhinitis, in urinary incontinence, and in the treatment of ulcers. At high doses it has nicotinic effects resulting in neuromuscular blocking.	3.23	1	0	xanthenes
propofol Propofol: An intravenous anesthetic agent which has the advantage of a very rapid onset after infusion or bolus injection plus a very short recovery period of a couple of minutes. (From Smith and Reynard, Textbook of Pharmacology, 1992, 1st ed, p206). Propofol has been used as ANTICONVULSANTS and ANTIEMETICS.. propofol : A phenol resulting from the formal substitution of the hydrogen at the 2 position of 1,3-diisopropylbenzene by a hydroxy group.	17.65	184	79	phenols	anticonvulsant; antiemetic; intravenous anaesthetic; radical scavenger; sedative
propranolol Propranolol: A widely used non-cardioselective beta-adrenergic antagonist. Propranolol has been used for MYOCARDIAL INFARCTION; ARRHYTHMIA; ANGINA PECTORIS; HYPERTENSION; HYPERTHYROIDISM; MIGRAINE; PHEOCHROMOCYTOMA; and ANXIETY but adverse effects instigate replacement by newer drugs.. propranolol : A propanolamine that is propan-2-ol substituted by a propan-2-ylamino group at position 1 and a naphthalen-1-yloxy group at position 3.	4.45	7	0	naphthalenes; propanolamine; secondary amine	anti-arrhythmia drug; antihypertensive agent; anxiolytic drug; beta-adrenergic antagonist; environmental contaminant; human blood serum metabolite; vasodilator agent; xenobiotic
protriptyline Protriptyline: Tricyclic antidepressant similar in action and side effects to IMIPRAMINE. It may produce excitation.	3.23	1	0	carbotricyclic compound	antidepressant
pyridostigmine [no description available]	3.58	2	0	pyridinium ion
pyrimethamine Maloprim: contains above 2 cpds	3.58	2	0	aminopyrimidine; monochlorobenzenes	antimalarial; antiprotozoal drug; EC 1.5.1.3 (dihydrofolate reductase) inhibitor
sch 16134 quazepam: structure given in first source	3.56	2	0	benzodiazepine
quetiapine [no description available]	3.23	1	0	dibenzothiazepine; N-alkylpiperazine; N-arylpiperazine	adrenergic antagonist; dopaminergic antagonist; histamine antagonist; second generation antipsychotic; serotonergic antagonist
rabeprazole Rabeprazole: A 4-(3-methoxypropoxy)-3-methylpyridinyl derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS.	3.58	2	0	benzimidazoles; pyridines; sulfoxide	anti-ulcer drug; EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor
raloxifene raloxifene : A member of the class of 1-benzothiophenes that is 1-benzothiophene in which the hydrogens at positions 2, 3, and 6 have been replaced by p-hydroxyphenyl, p-[2-(piperidin-1-yl)ethoxy]benzoyl, and hydroxy groups, respectively.	3.23	1	0	1-benzothiophenes; aromatic ketone; N-oxyethylpiperidine; phenols	bone density conservation agent; estrogen antagonist; estrogen receptor modulator
ranitidine [no description available]	2.43	2	0	aralkylamine
riluzole Riluzole: A glutamate antagonist (RECEPTORS, GLUTAMATE) used as an anticonvulsant (ANTICONVULSANTS) and to prolong the survival of patients with AMYOTROPHIC LATERAL SCLEROSIS.	3.56	2	0	benzothiazoles
rimantadine Rimantadine: An RNA synthesis inhibitor that is used as an antiviral agent in the prophylaxis and treatment of influenza.	3.56	2	0	alkylamine
risperidone Risperidone: A selective blocker of DOPAMINE D2 RECEPTORS and SEROTONIN 5-HT2 RECEPTORS that acts as an atypical antipsychotic agent. It has been shown to improve both positive and negative symptoms in the treatment of SCHIZOPHRENIA.. risperidone : A member of the class of pyridopyrimidines that is 2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one carrying an additional 2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl group at position 2.	3.84	3	0	1,2-benzoxazoles; heteroarylpiperidine; organofluorine compound; pyridopyrimidine	alpha-adrenergic antagonist; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; H1-receptor antagonist; psychotropic drug; second generation antipsychotic; serotonergic antagonist
rizatriptan rizatriptan: structure given in first source; RN given refers to benzoate	3.58	2	0	tryptamines	anti-inflammatory drug; serotonergic agonist; vasoconstrictor agent
ro 15-4513 Ro 15-4513: a partial inverse agonist of benzodiazepine receptors	1.97	1	0	organic heterotricyclic compound; organonitrogen heterocyclic compound
ropinirole [no description available]	3.23	1	0	indolones; tertiary amine	antidyskinesia agent; antiparkinson drug; central nervous system drug; dopamine agonist
salmeterol xinafoate salmeterol : A racemate consisting of equal parts of (R)- and (S)-salmeterol. It is a potent and selective beta2-adrenoceptor agonist (EC50 = 5.3 nM). Unlike other beta2 agonists, it binds to the exo-site domain of beta2 receptors, producing a slow onset of action and prolonged activation.. 2-(hydroxymethyl)-4-(1-hydroxy-2-{[6-(4-phenylbutoxy)hexyl]amino}ethyl)phenol : A phenol having a hydroxymethyl group at C-2 and a 1-hydroxy-2-{[6-(4-phenylbutoxy)hexyl]amino}ethyl group at C-4; derivative of phenylethanolamine.	2.02	1	0	ether; phenols; primary alcohol; secondary alcohol; secondary amino compound
salicylsalicylic acid salicylsalicylic acid: structure. salsalate : A dimeric benzoate ester obtained by intermolecular condensation between the carboxy of one molecule of salicylic acid with the phenol group of a second. It is a prodrug for salycylic acid that is used for treatment of rheumatoid arthritis and osteoarthritis and also shows activity against type II diabetes.	3.23	1	0	benzoate ester; benzoic acids; phenols; salicylates	antineoplastic agent; antirheumatic drug; EC 3.5.2.6 (beta-lactamase) inhibitor; hypoglycemic agent; non-narcotic analgesic; non-steroidal anti-inflammatory drug; prodrug
secobarbital Secobarbital: A barbiturate that is used as a sedative. Secobarbital is reported to have no anti-anxiety activity.. secobarbital : A member of the class of barbiturates that is barbituric acid in which the hydrogens at position 5 are substituted by prop-2-en-1-yl and pentan-2-yl groups.	5.24	17	0	barbiturates	anaesthesia adjuvant; GABA modulator; sedative
sevoflurane Sevoflurane: A non-explosive inhalation anesthetic used in the induction and maintenance of general anesthesia. It does not cause respiratory irritation and may also prevent PLATELET AGGREGATION.. sevoflurane : An ether compound having fluoromethyl and 1,1,1,3,3,3-hexafluoroisopropyl as the two alkyl groups.	6.92	6	4	ether; organofluorine compound	central nervous system depressant; inhalation anaesthetic; platelet aggregation inhibitor
sibutramine sibutramine: serotonin and norepinephrine transporter inhibitor; Meridia is tradename for sibutramine hydrochloride	3.23	1	0	organochlorine compound; tertiary amino compound	anti-obesity agent; serotonin uptake inhibitor
sulfadiazine Sulfadiazine: One of the short-acting SULFONAMIDES used in combination with PYRIMETHAMINE to treat toxoplasmosis in patients with acquired immunodeficiency syndrome and in newborns with congenital infections.. sulfadiazine : A sulfonamide consisting of pyrimidine with a 4-aminobenzenesulfonamido group at the 2-position.. diazine : The parent structure of the diazines.	4.03	4	0	pyrimidines; substituted aniline; sulfonamide antibiotic; sulfonamide	antiinfective agent; antimicrobial agent; antiprotozoal drug; coccidiostat; drug allergen; EC 1.1.1.153 [sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming)] inhibitor; EC 2.5.1.15 (dihydropteroate synthase) inhibitor; environmental contaminant; xenobiotic
risedronic acid Risedronic Acid: A pyridine and diphosphonic acid derivative that acts as a CALCIUM CHANNEL BLOCKER and inhibits BONE RESORPTION.	3.58	2	0	pyridines
sotalol Sotalol: An adrenergic beta-antagonist that is used in the treatment of life-threatening arrhythmias.. sotalol : A sulfonamide that is N-phenylmethanesulfonamide in which the phenyl group is substituted at position 4 by a 1-hydroxy-2-(isopropylamino)ethyl group. It has both beta-adrenoreceptor blocking (Vaughan Williams Class II) and cardiac action potential duration prolongation (Vaughan Williams Class III) antiarrhythmic properties. It is used (usually as the hydrochloride salt) for the management of ventricular and supraventricular arrhythmias.	3.84	3	0	ethanolamines; secondary alcohol; secondary amino compound; sulfonamide	anti-arrhythmia drug; beta-adrenergic antagonist; environmental contaminant; xenobiotic
imatinib [no description available]	3.58	2	0	aromatic amine; benzamides; N-methylpiperazine; pyridines; pyrimidines	antineoplastic agent; apoptosis inducer; tyrosine kinase inhibitor
vorinostat Vorinostat: A hydroxamic acid and anilide derivative that acts as a HISTONE DEACETYLASE inhibitor. It is used in the treatment of CUTANEOUS T-CELL LYMPHOMA and SEZARY SYNDROME.. vorinostat : A dicarboxylic acid diamide comprising suberic (octanedioic) acid coupled to aniline and hydroxylamine. A histone deacetylase inhibitor, it is marketed under the name Zolinza for the treatment of cutaneous T cell lymphoma (CTCL).	3.58	2	0	dicarboxylic acid diamide; hydroxamic acid	antineoplastic agent; apoptosis inducer; EC 3.5.1.98 (histone deacetylase) inhibitor
succinylcholine Succinylcholine: A quaternary skeletal muscle relaxant usually used in the form of its bromide, chloride, or iodide. It is a depolarizing relaxant, acting in about 30 seconds and with a duration of effect averaging three to five minutes. Succinylcholine is used in surgical, anesthetic, and other procedures in which a brief period of muscle relaxation is called for.. succinylcholine : A quaternary ammonium ion that is the bis-choline ester of succinic acid.	12.59	81	12	quaternary ammonium ion; succinate ester	drug allergen; muscle relaxant; neuromuscular agent
sulconazole sulconazole: RN given refers to cpd with unspecified isomeric designation; structure given in first source. sulconazole : A racemate comprising equimolar amounts of (R)- and (S)-sulconazole. An antifungal agent with activity against Candida species, it is used (generally as the nitrate salt) for the topical treatment of fungal skin infections.. 1-{2-[(4-chlorobenzyl)sulfanyl]-2-(2,4-dichlorophenyl)ethyl}-1H-imidazole : A member of the class of imidazoles that is 1-ethyl-1H-imidazole in which one of the hydrogens of the methyl group is replaced by a (4-chlorobenzyl)sulfanediyl group while a second is replaced by a 2,4-dichlorophenyl group.	2.02	1	0	dichlorobenzene; imidazoles; monochlorobenzenes; organic sulfide
sulfacetamide Sulfacetamide: An anti-bacterial agent that is used topically to treat skin infections and orally for urinary tract infections.. sulfacetamide : A sulfonamide that is sulfanilamide acylated on the sulfonamide nitrogen.	1.96	1	0	N-sulfonylcarboxamide; substituted aniline	antibacterial drug; antiinfective agent; antimicrobial agent; EC 2.5.1.15 (dihydropteroate synthase) inhibitor
sulfadimethoxine Sulfadimethoxine: A sulfanilamide that is used as an anti-infective agent.. sulfadimethoxine : A sulfonamide consisting of pyrimidine having methoxy substituents at the 2- and 6-positions and a 4-aminobenzenesulfonamido group at the 4-position.	1.94	1	0	aromatic ether; pyrimidines; substituted aniline; sulfonamide antibiotic; sulfonamide	antiinfective agent; antimicrobial agent; drug allergen; environmental contaminant; xenobiotic
sulfaguanidine Sulfaguanidine: A sulfanilamide antimicrobial agent that is used to treat enteric infections.. sulfaguanidine : A sulfonamide incorporating a guanidine moiety used to block the synthesis of folic acid; mostly used in veterinary medicine	2.35	2	0	sulfonamide antibiotic	antiinfective agent
sulfamerazine [no description available]	1.96	1	0	pyrimidines; sulfonamide antibiotic; sulfonamide	antiinfective agent; drug allergen
sulfamethazine Sulfamethazine: A sulfanilamide anti-infective agent. It has a spectrum of antimicrobial action similar to other sulfonamides.. sulfamethazine : A sulfonamide consisting of pyrimidine with methyl substituents at the 4- and 6-positions and a 4-aminobenzenesulfonamido group at the 2-position.	1.96	1	0	pyrimidines; sulfonamide antibiotic; sulfonamide	antibacterial drug; antiinfective agent; antimicrobial agent; carcinogenic agent; drug allergen; EC 2.5.1.15 (dihydropteroate synthase) inhibitor; environmental contaminant; ligand; xenobiotic
sulfamethizole Sulfamethizole: A sulfathiazole antibacterial agent.. sulfamethizole : A sulfonamide consisting of a 1,3,4-thiadiazole nucleus with a methyl substituent at C-5 and a 4-aminobenzenesulfonamido group at C-2.	3.23	1	0	sulfonamide antibiotic; sulfonamide; thiadiazoles	antiinfective agent; antimicrobial agent; drug allergen; EC 2.5.1.15 (dihydropteroate synthase) inhibitor
sulfamethoxazole Sulfamethoxazole: A bacteriostatic antibacterial agent that interferes with folic acid synthesis in susceptible bacteria. Its broad spectrum of activity has been limited by the development of resistance. (From Martindale, The Extra Pharmacopoeia, 30th ed, p208). sulfamethoxazole : An isoxazole (1,2-oxazole) compound having a methyl substituent at the 5-position and a 4-aminobenzenesulfonamido group at the 3-position.	2.39	2	0	isoxazoles; substituted aniline; sulfonamide antibiotic; sulfonamide	antibacterial agent; antiinfective agent; antimicrobial agent; drug allergen; EC 1.1.1.153 [sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming)] inhibitor; EC 2.5.1.15 (dihydropteroate synthase) inhibitor; environmental contaminant; epitope; P450 inhibitor; xenobiotic
sulfamethoxypyridazine Sulfamethoxypyridazine: A sulfanilamide antibacterial agent.. sulfamethoxypyridazine : A sulfonamide consisting of pyridazine having a methoxy substituent at the 6-position and a 4-aminobenzenesulfonamido group at the 3-position.	1.96	1	0	pyridazines; sulfonamide antibiotic; sulfonamide	antiinfective agent; drug allergen; EC 2.5.1.15 (dihydropteroate synthase) inhibitor
sulfanilamide [no description available]	1.96	1	0	substituted aniline; sulfonamide antibiotic; sulfonamide	antibacterial agent; drug allergen; EC 4.2.1.1 (carbonic anhydrase) inhibitor
sulfasalazine Sulfasalazine: A drug that is used in the management of inflammatory bowel diseases. Its activity is generally considered to lie in its metabolic breakdown product, 5-aminosalicylic acid (see MESALAMINE) released in the colon. (From Martindale, The Extra Pharmacopoeia, 30th ed, p907). sulfasalazine : An azobenzene consisting of diphenyldiazene having a carboxy substituent at the 4-position, a hydroxy substituent at the 3-position and a 2-pyridylaminosulphonyl substituent at the 4'-position.	3.56	2	0
sulfathiazole Sulfathiazole: A sulfathiazole compound that is used as a short-acting anti-infective agent. It is no longer commonly used systemically due to its toxicity, but may still be applied topically in combination with other drugs for the treatment of vaginal and skin infections, and is still used in veterinary medicine.. sulfathiazole : A 1,3-thiazole compound having a 4-aminobenzenesulfonamido group at the 2-position.	3.5	2	0	1,3-thiazoles; substituted aniline; sulfonamide antibiotic; sulfonamide	antiinfective agent; drug allergen; EC 2.5.1.15 (dihydropteroate synthase) inhibitor; environmental contaminant; xenobiotic
sulfinpyrazone Sulfinpyrazone: A uricosuric drug that is used to reduce the serum urate levels in gout therapy. It lacks anti-inflammatory, analgesic, and diuretic properties.	2.37	2	0	pyrazolidines; sulfoxide	uricosuric drug
sulfisoxazole Sulfisoxazole: A short-acting sulfonamide antibacterial with activity against a wide range of gram- negative and gram-positive organisms.. sulfisoxazole : A sulfonamide antibacterial with an oxazole substituent. It has antibiotic activity against a wide range of gram-negative and gram-positive organisms.	2.39	2	0	isoxazoles; sulfonamide antibiotic; sulfonamide	antibacterial drug; drug allergen
2-(octylamino)-1-[4-(propan-2-ylthio)phenyl]-1-propanol [no description available]	3.23	1	0	alkylbenzene
sumatriptan Sumatriptan: A serotonin agonist that acts selectively at 5HT1 receptors. It is used in the treatment of MIGRAINE DISORDERS.. sumatriptan : A sulfonamide that consists of N,N-dimethyltryptamine bearing an additional (N-methylsulfamoyl)methyl substituent at position 5. Selective agonist for a vascular 5-HT1 receptor subtype (probably a member of the 5-HT1D family). Used (in the form of its succinate salt) for the acute treatment of migraine with or without aura in adults.	3.84	3	0	sulfonamide; tryptamines	serotonergic agonist; vasoconstrictor agent
suprofen Suprofen: An IBUPROFEN-type anti-inflammatory analgesic and antipyretic. It inhibits prostaglandin synthesis and has been proposed as an anti-arthritic.. suprofen : An aromatic ketone that is thiophene substituted at C-2 by a 4-(1-carboxyethyl)benzoyl group.	2.43	2	0	aromatic ketone; monocarboxylic acid; thiophenes	antirheumatic drug; drug allergen; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; non-narcotic analgesic; non-steroidal anti-inflammatory drug; peripheral nervous system drug
suramin Suramin: A polyanionic compound with an unknown mechanism of action. It is used parenterally in the treatment of African trypanosomiasis and it has been used clinically with diethylcarbamazine to kill the adult Onchocerca. (From AMA Drug Evaluations Annual, 1992, p1643) It has also been shown to have potent antineoplastic properties.. suramin : A member of the class of phenylureas that is urea in which each of the amino groups has been substituted by a 3-({2-methyl-5-[(4,6,8-trisulfo-1-naphthyl)carbamoyl]phenyl}carbamoyl)phenyl group. An activator of both the rabbit skeletal muscle RyR1 and sheep cardiac RyR2 isoform ryanodine receptor channels, it has been used for the treatment of human African trypanosomiasis for over 100 years.	2.04	1	0	naphthalenesulfonic acid; phenylureas; secondary carboxamide	angiogenesis inhibitor; antinematodal drug; antineoplastic agent; apoptosis inhibitor; EC 2.7.11.13 (protein kinase C) inhibitor; GABA antagonist; GABA-gated chloride channel antagonist; purinergic receptor P2 antagonist; ryanodine receptor agonist; trypanocidal drug
gatifloxacin Gatifloxacin: A fluoroquinolone antibacterial agent and DNA TOPOISOMERASE II inhibitor that is used as an ophthalmic solution for the treatment of BACTERIAL CONJUNCTIVITIS.. gatifloxacin : A monocarboxylic acid that is 4-oxo-1,4-dihydroquinoline-3-carboxylic acid which is substituted on the nitrogen by a cyclopropyl group and at positions 6, 7, and 8 by fluoro, 3-methylpiperazin-1-yl, and methoxy groups, respectively. Gatifloxacin is an antibiotic of the fourth-generation fluoroquinolone family, that like other members of that family, inhibits the bacterial topoisomerase type-II enzymes.	2.04	1	0	N-arylpiperazine; organofluorine compound; quinolinemonocarboxylic acid; quinolone antibiotic; quinolone	antiinfective agent; antimicrobial agent; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor
tazarotene tazarotene: a topical acetylenic retinoid; a topical kerytolytic. tazarotene : The ethyl ester of tazarotenic acid. A prodrug for tazarotenic acid, it is used for the treatment of psoriasis, acne, and sun-damaged skin.	2.02	1	0	acetylenic compound; ethyl ester; pyridines; retinoid; thiochromane	keratolytic drug; prodrug; teratogenic agent
temazepam Temazepam: A benzodiazepine that acts as a GAMMA-AMINOBUTYRIC ACID modulator and anti-anxiety agent.	3.81	3	0	benzodiazepine
temozolomide [no description available]	3.58	2	0	imidazotetrazine; monocarboxylic acid amide; triazene derivative	alkylating agent; antineoplastic agent; prodrug
terazosin Terazosin: induces decreased blood pressure; used in the treatment of benign prostatic hyperplasia	3.84	3	0	furans; piperazines; primary amino compound; quinazolines	alpha-adrenergic antagonist; antihypertensive agent; antineoplastic agent
terbutaline Terbutaline: A selective beta-2 adrenergic agonist used as a bronchodilator and tocolytic.. terbutaline : A member of the class of phenylethanolamines that is catechol substituted at position 5 by a 2-(tert-butylamino)-1-hydroxyethyl group.	3.58	2	0	phenylethanolamines; resorcinols	anti-asthmatic drug; beta-adrenergic agonist; bronchodilator agent; EC 3.1.1.7 (acetylcholinesterase) inhibitor; hypoglycemic agent; sympathomimetic agent; tocolytic agent
terfenadine Terfenadine: A selective histamine H1-receptor antagonist devoid of central nervous system depressant activity. The drug was used for ALLERGY but withdrawn due to causing LONG QT SYNDROME.	2.02	1	0	diarylmethane
tetracaine Tetracaine: A potent local anesthetic of the ester type used for surface and spinal anesthesia.. tetracaine : A benzoate ester in which 4-N-butylbenzoic acid and 2-(dimethylamino)ethanol have combined to form the ester bond; a local ester anaesthetic (ester caine) used for surface and spinal anaesthesia.	3.73	2	1	benzoate ester; tertiary amino compound	local anaesthetic
tetraethylammonium Tetraethylammonium: A potassium-selective ion channel blocker. (From J Gen Phys 1994;104(1):173-90)	2.88	4	0	quaternary ammonium ion
thalidomide Thalidomide: A piperidinyl isoindole originally introduced as a non-barbiturate hypnotic, but withdrawn from the market due to teratogenic effects. It has been reintroduced and used for a number of immunological and inflammatory disorders. Thalidomide displays immunosuppressive and anti-angiogenic activity. It inhibits release of TUMOR NECROSIS FACTOR-ALPHA from monocytes, and modulates other cytokine action.. thalidomide : A racemate comprising equimolar amounts of R- and S-thalidomide.. 2-(2,6-dioxopiperidin-3-yl)-1H-isoindole-1,3(2H)-dione : A dicarboximide that is isoindole-1,3(2H)-dione in which the hydrogen attached to the nitrogen is substituted by a 2,6-dioxopiperidin-3-yl group.	3.58	2	0	phthalimides; piperidones
thiabendazole Tresaderm: dermatologic soln containing dexamethasone, thiabendazole & neomycin sulfate	3.23	1	0	1,3-thiazoles; benzimidazole fungicide; benzimidazoles	antifungal agrochemical; antinematodal drug
thiethylperazine Thiethylperazine: A dopamine antagonist that is particularly useful in treating the nausea and vomiting associated with anesthesia, mildly emetic cancer chemotherapy agents, radiation therapy, and toxins. This piperazine phenothiazine does not prevent vertigo or motion sickness. (From AMA Drug Evaluations Annual, 1994, p457). thiethylperazine : A member of the class of phenothiazines that is perazine substituted by a ethylsulfanyl group at position 2.	1.94	1	0	N-methylpiperazine; phenothiazines	antiemetic; dopaminergic antagonist; histamine antagonist; muscarinic antagonist; phenothiazine antipsychotic drug; serotonergic antagonist
thioridazine Thioridazine: A phenothiazine antipsychotic used in the management of PHYCOSES, including SCHIZOPHRENIA.. thioridazine : A phenothiazine derivative having a methylsulfanyl subsitituent at the 2-position and a (1-methylpiperidin-2-yl)ethyl] group at the N-10 position.	3.56	2	0	phenothiazines; piperidines	alpha-adrenergic antagonist; dopaminergic antagonist; EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; first generation antipsychotic; H1-receptor antagonist; serotonergic antagonist
thiotepa Thiotepa: A very toxic alkylating antineoplastic agent also used as an insect sterilant. It causes skin, gastrointestinal, CNS, and bone marrow damage. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), thiotepa may reasonably be anticipated to be a carcinogen (Merck Index, 11th ed).	3.84	3	0	aziridines
ticlopidine Ticlopidine: An effective inhibitor of platelet aggregation commonly used in the placement of STENTS in CORONARY ARTERIES.. ticlopidine : A thienopyridine that is 4,5,6,7-tetrahydrothieno[3,2-c]pyridine in which the hydrogen attached to the nitrogen is replaced by an o-chlorobenzyl group.	3.56	2	0	monochlorobenzenes; thienopyridine	anticoagulant; fibrin modulating drug; hematologic agent; P2Y12 receptor antagonist; platelet aggregation inhibitor
tinidazole Tinidazole: A nitroimidazole alkylating agent that is used as an antitrichomonal agent against TRICHOMONAS VAGINALIS; ENTAMOEBA HISTOLYTICA; and GIARDIA LAMBLIA infections. It also acts as an antibacterial agent for the treatment of BACTERIAL VAGINOSIS and anaerobic bacterial infections.. tinidazole : 1H-imidazole substituted at C-1 by a (2-ethylsulfonyl)ethyl group, at C-2 by a methyl group and at C-5 by a nitro group. It is used as an antiprotozoal, antibacterial agent.	3.58	2	0	imidazoles	antiamoebic agent; antibacterial drug; antiparasitic agent; antiprotozoal drug
tioconazole tioconazole : A racemate comprising equimolar amounts of (R)- and (S)-tioconazole.. 1-{2-[(2-chloro-3-thienyl)methoxy]-2-(2,4-dichlorophenyl)ethyl}imidazole : A member of the class of imidazoles that comprises 2-(2,4-dichlorophenyl)ethylimidazole carrying an additional (2-chloro-3-thienyl)methoxy substituent at position 2.	2.02	1	0	dichlorobenzene; ether; imidazoles; thiophenes
tiopronin Tiopronin: Sulfhydryl acylated derivative of GLYCINE.	3.56	2	0	N-acyl-amino acid
tizanidine tizanidine: RN given refers to parent cpd; structure. tizanidine : 2,1,3-Benzothiadiazole substituted at C-4 by a Delta(1)-imidazolin-2-ylamino group and at C-4 by a chloro group. It is an agonist at alpha2-adrenergic receptor sites.	3.84	3	0	benzothiadiazole; imidazoles	alpha-adrenergic agonist; muscle relaxant
tolazamide Tolazamide: A sulphonylurea hypoglycemic agent with actions and uses similar to those of CHLORPROPAMIDE.. tolazamide : An N-sulfonylurea that is 1-tosylurea in which a hydrogen attached to the nitrogen at position 3 is replaced by an azepan-1-yl group. A hypoglycemic agent, it is used for the treatment of type 2 diabetes mellitus.	3.23	1	0	N-sulfonylurea	hypoglycemic agent; potassium channel blocker
tolbutamide Tolbutamide: A sulphonylurea hypoglycemic agent with actions and uses similar to those of CHLORPROPAMIDE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p290). tolbutamide : An N-sulfonylurea that consists of 1-butylurea having a tosyl group attached at the 3-position.	3.58	2	0	N-sulfonylurea	human metabolite; hypoglycemic agent; insulin secretagogue; potassium channel blocker
tolmetin Tolmetin: A non-steroidal anti-inflammatory agent (ANTI-INFLAMMATORY AGENTS, NON-STEROIDAL) similar in mode of action to INDOMETHACIN.. tolmetin : A monocarboxylic acid that is (1-methylpyrrol-2-yl)acetic acid substituted at position 5 on the pyrrole ring by a 4-methylbenzoyl group. Used in the form of its sodium salt dihydrate as a nonselective nonsteroidal anti-inflammatory drug.	3.23	1	0	aromatic ketone; monocarboxylic acid; pyrroles	EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; non-steroidal anti-inflammatory drug
ultram 2-[(dimethylamino)methyl]-1-(3-methoxyphenyl)cyclohexanol : A tertiary alcohol that is cyclohexanol substituted at positions 1 and 2 by 3-methoxyphenyl and dimethylaminomethyl groups respectively.	3.84	3	0	aromatic ether; tertiary alcohol; tertiary amino compound
tranexamic acid Tranexamic Acid: Antifibrinolytic hemostatic used in severe hemorrhage.	3.58	2	0	amino acid
trazodone Trazodone: A serotonin uptake inhibitor that is used as an antidepressive agent. It has been shown to be effective in patients with major depressive disorders and other subsets of depressive disorders. It is generally more useful in depressive disorders associated with insomnia and anxiety. This drug does not aggravate psychotic symptoms in patients with schizophrenia or schizoaffective disorders. (From AMA Drug Evaluations Annual, 1994, p309). trazodone : An N-arylpiperazine in which one nitrogen is substituted by a 3-chlorophenyl group, while the other is substituted by a 3-(3-oxo[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)propyl group.	3.84	3	0	monochlorobenzenes; N-alkylpiperazine; N-arylpiperazine; triazolopyridine	adrenergic antagonist; antidepressant; anxiolytic drug; H1-receptor antagonist; sedative; serotonin uptake inhibitor
triamterene Triamterene: A pteridinetriamine compound that inhibits SODIUM reabsorption through SODIUM CHANNELS in renal EPITHELIAL CELLS.. triamterene : Pteridine substituted at positions 2, 4 and 7 with amino groups and at position 6 with a phenyl group. A sodium channel blocker, it is used as a diuretic in the treatment of hypertension and oedema.	3.58	2	0	pteridines	diuretic; sodium channel blocker
triazolam Triazolam: A short-acting benzodiazepine used in the treatment of insomnia. Some countries temporarily withdrew triazolam from the market because of concerns about adverse reactions, mostly psychological, associated with higher dose ranges. Its use at lower doses with appropriate care and labeling has been reaffirmed by the FDA and most other countries.	5.42	4	1	triazolobenzodiazepine	sedative
trientine Trientine: An ethylenediamine derivative used as stabilizer for EPOXY RESINS, as ampholyte for ISOELECTRIC FOCUSING and as chelating agent for copper in HEPATOLENTICULAR DEGENERATION.. TETA : An azamacrocyle in which four nitrogen atoms at positions 1, 4, 8 and 11 of a fouteen-membered ring are each substituted with a carboxymethyl group.. 2,2,2-tetramine : A polyazaalkane that is decane in which the carbon atoms at positions 1, 4, 7 and 10 are replaced by nitrogens.	2.02	1	0	polyazaalkane; tetramine	copper chelator
trifluoperazine [no description available]	3.78	3	0	N-alkylpiperazine; N-methylpiperazine; organofluorine compound; phenothiazines	antiemetic; calmodulin antagonist; dopaminergic antagonist; EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor; EC 5.3.3.5 (cholestenol Delta-isomerase) inhibitor; phenothiazine antipsychotic drug
triflupromazine Triflupromazine: A phenothiazine used as an antipsychotic agent and as an antiemetic.. triflupromazine : A member of the class of phenothiazines that is 10H-phenothiazine having a trifluoromethyl subsitituent at the 2-position and a 3-(dimethylamino)propyl group at the N-10 position.	1.94	1	0	organofluorine compound; phenothiazines; tertiary amine	anticoronaviral agent; antiemetic; dopaminergic antagonist; first generation antipsychotic
trihexyphenidyl Trihexyphenidyl: One of the centrally acting MUSCARINIC ANTAGONISTS used for treatment of PARKINSONIAN DISORDERS and drug-induced extrapyramidal movement disorders and as an antispasmodic.	3.23	1	0	amine
trimeprazine Trimeprazine: A phenothiazine derivative that is used as an antipruritic.	2.85	4	0	phenothiazines
trimethadione Trimethadione: An anticonvulsant effective in absence seizures, but generally reserved for refractory cases because of its toxicity. (From AMA Drug Evaluations Annual, 1994, p378). trimethadione : An oxazolidinone that is 1,3-oxazolidine-2,4-dione substituted by methyl groups at positions 3, 5 and 5. It is an antiepileptic agent.	3.56	2	0	oxazolidinone	anticonvulsant; geroprotector
trimethobenzamide trimethobenzamide: major descriptor (64-84); on-line search BENZAMIDES (64-84); Index Medicus search TRIMETHOBENZAMIDE (64-84); RN given refers to parent cpd. trimethobenzamide : The amide obtained by formal condensation of 3,4,5-trihydroxybenzoic acid with 4-[2-(N,N-dimethylamino)ethoxy]benzylamine. It is used to prevent nausea and vomitting in humans.	3.23	1	0	benzamides; tertiary amino compound	antiemetic
trimethoprim Trimethoprim: A pyrimidine inhibitor of dihydrofolate reductase, it is an antibacterial related to PYRIMETHAMINE. It is potentiated by SULFONAMIDES and the TRIMETHOPRIM, SULFAMETHOXAZOLE DRUG COMBINATION is the form most often used. It is sometimes used alone as an antimalarial. TRIMETHOPRIM RESISTANCE has been reported.. trimethoprim : An aminopyrimidine antibiotic whose structure consists of pyrimidine 2,4-diamine and 1,2,3-trimethoxybenzene moieties linked by a methylene bridge.	3.79	3	0	aminopyrimidine; methoxybenzenes	antibacterial drug; diuretic; drug allergen; EC 1.5.1.3 (dihydrofolate reductase) inhibitor; environmental contaminant; xenobiotic
trimetrexate Trimetrexate: A nonclassical folic acid inhibitor through its inhibition of the enzyme dihydrofolate reductase. It is being tested for efficacy as an antineoplastic agent and as an antiparasitic agent against PNEUMOCYSTIS PNEUMONIA in AIDS patients. Myelosuppression is its dose-limiting toxic effect.	3.84	3	0
trimipramine Trimipramine: Tricyclic antidepressant similar to IMIPRAMINE, but with more antihistaminic and sedative properties.. trimipramine : A dibenzoazepine that is 10,11-dihydro-5H-dibenzo[b,f]azepine substituted by a 3-(dimethylamino)-2-methylpropyl group at the nitrogen atom. It is used as an antidepressant.	3.84	3	0	dibenzoazepine; tertiary amino compound	antidepressant; environmental contaminant; xenobiotic
troglitazone Troglitazone: A chroman and thiazolidinedione derivative that acts as a PEROXISOME PROLIFERATOR-ACTIVATED RECEPTORS (PPAR) agonist. It was formerly used in the treatment of TYPE 2 DIABETES MELLITUS, but has been withdrawn due to hepatotoxicity.	3.23	1	0	chromanes; thiazolidinone	anticoagulant; anticonvulsant; antineoplastic agent; antioxidant; EC 6.2.1.3 (long-chain-fatty-acid--CoA ligase) inhibitor; ferroptosis inhibitor; hypoglycemic agent; platelet aggregation inhibitor; vasodilator agent
tyramine [no description available]	3.48	2	0	monoamine molecular messenger; primary amino compound; tyramines	EC 3.1.1.8 (cholinesterase) inhibitor; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter
delavirdine Delavirdine: A potent, non-nucleoside reverse transcriptase inhibitor with activity specific for HIV-1.. delavirdine : The amide resulting from the formal condensation of 5-[(methylsulfonyl)amino]-1H-indole-2-carboxylic acid and 4-amino group of 1-[3-(isopropylamino)pyridin-2-yl]piperazine, delavirdine is a non-nucleoside reverse transcriptase inhibitor with activity specific for HIV-1. Viral resistance emerges rapidly when delavirdine is used alone, so it is therefore used (as the methanesulfonic acid salt) with other antiretrovirals for combination therapy of HIV infection.	3.23	1	0	aminopyridine; indolecarboxamide; N-acylpiperazine; sulfonamide	antiviral drug; HIV-1 reverse transcriptase inhibitor
urapidil [no description available]	2.04	1	0	piperazines
urethane [no description available]	3.66	10	0	carbamate ester	fungal metabolite; mutagen
venlafaxine venlafaxine : A tertiary amino compound that is N,N-dimethylethanamine substituted at position 1 by a 1-hydroxycyclohexyl and 4-methoxyphenyl group.	3.84	3	0	cyclohexanols; monomethoxybenzene; tertiary alcohol; tertiary amino compound	adrenergic uptake inhibitor; analgesic; antidepressant; dopamine uptake inhibitor; environmental contaminant; serotonin uptake inhibitor; xenobiotic
vigabatrin [no description available]	3.23	1	0	gamma-amino acid	anticonvulsant; EC 2.6.1.19 (4-aminobutyrate--2-oxoglutarate transaminase) inhibitor
viloxazine Viloxazine: A morpholine derivative used as an antidepressant. It is similar in action to IMIPRAMINE.	2.04	1	0	aromatic ether
xylazine Xylazine: An adrenergic alpha-2 agonist used as a sedative, analgesic and centrally acting muscle relaxant in VETERINARY MEDICINE.. xylazine : A methyl benzene that is 1,3-dimethylbenzene which is substituted by a 5,6-dihydro-4H-1,3-thiazin-2-ylnitrilo group at position 2. It is an alpha2 adrenergic receptor agonist and frequently used in veterinary medicine as an emetic and sedative with analgesic and muscle relaxant properties.	4.31	6	0	1,3-thiazine; methylbenzene; secondary amino compound	alpha-adrenergic agonist; analgesic; emetic; muscle relaxant; sedative
ici 204,219 zafirlukast: a leukotriene D4 receptor antagonist	3.56	2	0	carbamate ester; indoles; N-sulfonylcarboxamide	anti-asthmatic agent; leukotriene antagonist
zaleplon zaleplon: an azabicyclo(4.3.0)nonane; a nonbenzodiazepine; one of the so-called of Z drugs (zopiclone, eszopiclone, zolpidem, and zaleplon) for which there is some correlation with tumors; a hypnotic with less marked effect on psychomotor functions compared to lorazepam. zaleplon : A pyrazolo[1,5-a]pyrimidine having a nitrile group at position 3 and a 3-(N-ethylacetamido)phenyl substituent at the 7-position.	3.58	2	0	nitrile; pyrazolopyrimidine	anticonvulsant; anxiolytic drug; central nervous system depressant; sedative
zolpidem Zolpidem: An imidazopyridine derivative and short-acting GABA-A receptor agonist that is used for the treatment of INSOMNIA.. zolpidem : An imidazo[1,2-a]pyridine compound having a 4-tolyl group at the 2-position, an N,N-dimethylcarbamoylmethyl group at the 3-position and a methyl substituent at the 6-position.	3.84	3	0	imidazopyridine	central nervous system depressant; GABA agonist; sedative
zomepirac zomepirac: RN given refers to parent cpd; structure	2.02	1	0	aromatic ketone; monocarboxylic acid; monochlorobenzenes; pyrroles	cardiovascular drug; non-steroidal anti-inflammatory drug
zonisamide Zonisamide: A benzisoxazole and sulfonamide derivative that acts as a CALCIUM CHANNEL blocker. It is used primarily as an adjunctive antiepileptic agent for the treatment of PARTIAL SEIZURES, with or without secondary generalization.. zonisamide : A 1,2-benzoxazole compound having a sulfamoylmethyl substituent at the 3-position.	3.23	1	0	1,2-benzoxazoles; sulfonamide	anticonvulsant; antioxidant; central nervous system drug; protective agent; T-type calcium channel blocker
zopiclone zopiclone: S(+)-enantiomer of racemic zopiclone; azabicyclo(4.3.0)nonane; a nonbenzodiazepine; one of the so-called of Z drugs (zopiclone, eszopiclone, zolpidem, and zaleplon) for which there is some correlation with tumors; was term of zopiclone 2004-2007. zopiclone : A pyrrolo[3,4-b]pyrazine compound having a 4-methylpiperazine-1-carboxyl group at the 5-position, a 5-chloropyridin-2-yl group at the 6-position and an oxo-substituent at the 7-position.	2.04	1	0	monochloropyridine; pyrrolopyrazine	central nervous system depressant; sedative
cortisone acetate Cortisone Acetate: The acetate ester of cortisone that is used mainly for replacement therapy in adrenocortical insufficiency and in the treatment of many allergic and inflammatory disorders.	3.23	1	0	corticosteroid hormone
mitomycin Mitomycin: An antineoplastic antibiotic produced by Streptomyces caespitosus. It is one of the bi- or tri-functional ALKYLATING AGENTS causing cross-linking of DNA and inhibition of DNA synthesis.. mitomycin : A family of aziridine-containing natural products isolated from Streptomyces caespitosus or Streptomyces lavendulae.	3.23	1	0	mitomycin	alkylating agent; antineoplastic agent
prednisolone Prednisolone: A glucocorticoid with the general properties of the corticosteroids. It is the drug of choice for all conditions in which routine systemic corticosteroid therapy is indicated, except adrenal deficiency states.. prednisolone : A glucocorticoid that is prednisone in which the oxo group at position 11 has been reduced to the corresponding beta-hydroxy group. It is a drug metabolite of prednisone.	3.99	4	0	11beta-hydroxy steroid; 17alpha-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(1),Delta(4)-steroid; C21-steroid; glucocorticoid; primary alpha-hydroxy ketone; tertiary alpha-hydroxy ketone	adrenergic agent; anti-inflammatory drug; antineoplastic agent; drug metabolite; environmental contaminant; immunosuppressive agent; xenobiotic
reserpine Reserpine: An alkaloid found in the roots of Rauwolfia serpentina and R. vomitoria. Reserpine inhibits the uptake of norepinephrine into storage vesicles resulting in depletion of catecholamines and serotonin from central and peripheral axon terminals. It has been used as an antihypertensive and an antipsychotic as well as a research tool, but its adverse effects limit its clinical use.. reserpine : An alkaloid found in the roots of Rauwolfia serpentina and R. vomitoria.	4.27	3	0	alkaloid ester; methyl ester; yohimban alkaloid	adrenergic uptake inhibitor; antihypertensive agent; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; environmental contaminant; first generation antipsychotic; plant metabolite; xenobiotic
cephaloridine Cephaloridine: A cephalosporin antibiotic.. cefaloridine : A cephalosporin compound having pyridinium-1-ylmethyl and 2-thienylacetamido side-groups. A first-generation semisynthetic derivative of cephalosporin C.	2.04	1	0	beta-lactam antibiotic allergen; cephalosporin; semisynthetic derivative	antibacterial drug
phentolamine Phentolamine: A nonselective alpha-adrenergic antagonist. It is used in the treatment of hypertension and hypertensive emergencies, pheochromocytoma, vasospasm of RAYNAUD DISEASE and frostbite, clonidine withdrawal syndrome, impotence, and peripheral vascular disease.. phentolamine : A substituted aniline that is 3-aminophenol in which the hydrogens of the amino group are replaced by 4-methylphenyl and 4,5-dihydro-1H-imidazol-2-ylmethyl groups respectively. An alpha-adrenergic antagonist, it is used for the treatment of hypertension.	3.5	2	0	imidazoles; phenols; substituted aniline; tertiary amino compound	alpha-adrenergic antagonist; vasodilator agent
sorbitol D-glucitol : The D-enantiomer of glucitol (also known as D-sorbitol).	3.49	2	0	glucitol	cathartic; Escherichia coli metabolite; food humectant; human metabolite; laxative; metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite; sweetening agent
thymidine [no description available]	1.94	1	0	pyrimidine 2'-deoxyribonucleoside	Escherichia coli metabolite; human metabolite; metabolite; mouse metabolite
floxuridine Floxuridine: An antineoplastic antimetabolite that is metabolized to fluorouracil when administered by rapid injection; when administered by slow, continuous, intra-arterial infusion, it is converted to floxuridine monophosphate. It has been used to treat hepatic metastases of gastrointestinal adenocarcinomas and for palliation in malignant neoplasms of the liver and gastrointestinal tract.. floxuridine : A pyrimidine 2'-deoxyribonucleoside compound having 5-fluorouracil as the nucleobase; used to treat hepatic metastases of gastrointestinal adenocarcinomas and for palliation in malignant neoplasms of the liver and gastrointestinal tract.	2.02	1	0	nucleoside analogue; organofluorine compound; pyrimidine 2'-deoxyribonucleoside	antimetabolite; antineoplastic agent; antiviral drug; radiosensitizing agent
thyroxine Thyroxine: The major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosines (MONOIODOTYROSINE) and the coupling of iodotyrosines (DIIODOTYROSINE) in the THYROGLOBULIN. Thyroxine is released from thyroglobulin by proteolysis and secreted into the blood. Thyroxine is peripherally deiodinated to form TRIIODOTHYRONINE which exerts a broad spectrum of stimulatory effects on cell metabolism.. thyroxine : An iodothyronine compound having iodo substituents at the 3-, 3'-, 5- and 5'-positions.	3.23	1	0	2-halophenol; iodophenol; L-phenylalanine derivative; non-proteinogenic L-alpha-amino acid; thyroxine zwitterion; thyroxine	antithyroid drug; human metabolite; mouse metabolite; thyroid hormone
dextroamphetamine Dextroamphetamine: The d-form of AMPHETAMINE. It is a central nervous system stimulant and a sympathomimetic. It has also been used in the treatment of narcolepsy and of attention deficit disorders and hyperactivity in children. Dextroamphetamine has multiple mechanisms of action including blocking uptake of adrenergics and dopamine, stimulating release of monamines, and inhibiting monoamine oxidase. It is also a drug of abuse and a psychotomimetic.. (S)-amphetamine : A 1-phenylpropan-2-amine that has S configuration.	3.78	3	0	1-phenylpropan-2-amine	adrenergic agent; adrenergic uptake inhibitor; dopamine uptake inhibitor; dopaminergic agent; neurotoxin; sympathomimetic agent
carbachol Carbachol: A slowly hydrolyzed CHOLINERGIC AGONIST that acts at both MUSCARINIC RECEPTORS and NICOTINIC RECEPTORS.	2.65	3	0	ammonium salt; carbamate ester	cardiotonic drug; miotic; muscarinic agonist; nicotinic acetylcholine receptor agonist; non-narcotic analgesic
spironolactone Spironolactone: A potassium sparing diuretic that acts by antagonism of aldosterone in the distal renal tubules. It is used mainly in the treatment of refractory edema in patients with congestive heart failure, nephrotic syndrome, or hepatic cirrhosis. Its effects on the endocrine system are utilized in the treatments of hirsutism and acne but they can lead to adverse effects. (From Martindale, The Extra Pharmacopoeia, 30th ed, p827). spironolactone : A steroid lactone that is 17alpha-pregn-4-ene-21,17-carbolactone substituted by an oxo group at position 3 and an alpha-acetylsulfanyl group at position 7.	3.56	2	0	3-oxo-Delta(4) steroid; oxaspiro compound; steroid lactone; thioester	aldosterone antagonist; antihypertensive agent; diuretic; environmental contaminant; xenobiotic
cyclobarbital cyclobarbital: was heading 1977-94 (see under BARBITURATES 1977-90); CYCLOBARBITONE, HEXEMAL, & TETRAHYDROPHENOBARBITAL were see CYCLOBARBITAL 1977-94; use BARBITURATES to search CYCLOBARBITAL 1977-94; short to intermediate duration barbiturate used as hypnotic and sedative	2.36	2	0	barbiturates
aldosterone [no description available]	4.61	3	2	11beta-hydroxy steroid; 18-oxo steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(4) steroid; C21-steroid hormone; mineralocorticoid; primary alpha-hydroxy ketone; steroid aldehyde	human metabolite; mouse metabolite
allobarbital allobarbital: was heading 1976-94 (see under BARBITURATES 1976-90); ALLOBARBITONE, DIALLYLBARBITAL, DIALLYLBARBITURIC ACID, & DIALLYLMAL were see ALLOBARBITAL 1976-94; use BARBITURATES to search ALLOBARBITAL 1976-94; a barbiturate derivative with effects of intermediate duration; at lower doses, it is used as a sedative; at higher doses, it displays hypnotic effects	2.36	2	0	barbiturates
pentolinium tartrate Pentolinium Tartrate: A nicotinic antagonist that has been used as a ganglionic blocking agent in hypertension.. pentolinium tartrate : The bitartrate salt of pentolinium.	1.97	1	0	tartrate salt	antihypertensive agent
penicillamine Penicillamine: 3-Mercapto-D-valine. The most characteristic degradation product of the penicillin antibiotics. It is used as an antirheumatic and as a chelating agent in Wilson's disease.. penicillamine : An alpha-amino acid having the structure of valine substituted at the beta position with a sulfanyl group.	3.56	2	0	non-proteinogenic alpha-amino acid; penicillamine	antirheumatic drug; chelator; copper chelator; drug allergen
cysteine [no description available]	3.23	1	0	cysteine zwitterion; cysteine; L-alpha-amino acid; proteinogenic amino acid; serine family amino acid	EC 4.3.1.3 (histidine ammonia-lyase) inhibitor; flour treatment agent; human metabolite
prednisone Prednisone: A synthetic anti-inflammatory glucocorticoid derived from CORTISONE. It is biologically inert and converted to PREDNISOLONE in the liver.. prednisone : A synthetic glucocorticoid drug that is particularly effective as an immunosuppressant, and affects virtually all of the immune system. Prednisone is a prodrug that is converted by the liver into prednisolone (a beta-hydroxy group instead of the oxo group at position 11), which is the active drug and also a steroid.	3.84	3	0	11-oxo steroid; 17alpha-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(1),Delta(4)-steroid; C21-steroid; glucocorticoid; primary alpha-hydroxy ketone; tertiary alpha-hydroxy ketone	adrenergic agent; anti-inflammatory drug; antineoplastic agent; immunosuppressive agent; prodrug
estrone Hydroxyestrones: Estrone derivatives substituted with one or more hydroxyl groups in any position. They are important metabolites of estrone and other estrogens.	3.23	1	0	17-oxo steroid; 3-hydroxy steroid; phenolic steroid; phenols	antineoplastic agent; bone density conservation agent; estrogen; human metabolite; mouse metabolite
oxandrolone Oxandrolone: A synthetic hormone with anabolic and androgenic properties.	3.23	1	0	17beta-hydroxy steroid; 3-oxo steroid; anabolic androgenic steroid; oxa-steroid	anabolic agent; androgen
penicillin g Penicillin G: A penicillin derivative commonly used in the form of its sodium or potassium salts in the treatment of a variety of infections. It is effective against most gram-positive bacteria and against gram-negative cocci. It has also been used as an experimental convulsant because of its actions on GAMMA-AMINOBUTYRIC ACID mediated synaptic transmission.. benzylpenicillin : A penicillin in which the substituent at position 6 of the penam ring is a phenylacetamido group.	3.58	2	0	penicillin allergen; penicillin	antibacterial drug; drug allergen; epitope
pilocarpine Pilocarpine: A slowly hydrolyzed muscarinic agonist with no nicotinic effects. Pilocarpine is used as a miotic and in the treatment of glaucoma.. (+)-pilocarpine : The (+)-enantiomer of pilocarpine.	3.98	4	0	pilocarpine	antiglaucoma drug
pentylenetetrazole Pentylenetetrazole: A pharmaceutical agent that displays activity as a central nervous system and respiratory stimulant. It is considered a non-competitive GAMMA-AMINOBUTYRIC ACID antagonist. Pentylenetetrazole has been used experimentally to study seizure phenomenon and to identify pharmaceuticals that may control seizure susceptibility.. pentetrazol : An organic heterobicyclic compound that is 1H-tetrazole in which the hydrogens at positions 1 and 5 are replaced by a pentane-1,5-diyl group. A central and respiratory stimulant, it was formerly used for the treatment of cough and other respiratory tract disorders, cardiovascular disorders including hypotension, and pruritis.	4.66	9	0	organic heterobicyclic compound; organonitrogen heterocyclic compound
triiodothyronine Triiodothyronine: A T3 thyroid hormone normally synthesized and secreted by the thyroid gland in much smaller quantities than thyroxine (T4). Most T3 is derived from peripheral monodeiodination of T4 at the 5' position of the outer ring of the iodothyronine nucleus. The hormone finally delivered and used by the tissues is mainly T3.. 3,3',5-triiodo-L-thyronine : An iodothyronine compound having iodo substituents at the 3-, 3'- and 5-positions. Although some is produced in the thyroid, most of the 3,3',5-triiodo-L-thyronine in the body is generated by mono-deiodination of L-thyroxine in the peripheral tissues. Its metabolic activity is about 3 to 5 times that of L-thyroxine. The sodium salt is used in the treatment of hypothyroidism.	3.23	1	0	2-halophenol; amino acid zwitterion; iodophenol; iodothyronine	human metabolite; mouse metabolite; thyroid hormone
chloramphenicol Amphenicol: Chloramphenicol and its derivatives.	3.8	3	0	C-nitro compound; carboxamide; diol; organochlorine compound	antibacterial drug; antimicrobial agent; Escherichia coli metabolite; geroprotector; Mycoplasma genitalium metabolite; protein synthesis inhibitor
aspartic acid Aspartic Acid: One of the non-essential amino acids commonly occurring in the L-form. It is found in animals and plants, especially in sugar cane and sugar beets. It may be a neurotransmitter.. aspartic acid : An alpha-amino acid that consists of succinic acid bearing a single alpha-amino substituent. L-aspartic acid : The L-enantiomer of aspartic acid.	2.66	3	0	aspartate family amino acid; aspartic acid; L-alpha-amino acid; proteinogenic amino acid	Escherichia coli metabolite; mouse metabolite; neurotransmitter
glutamine Glutamine: A non-essential amino acid present abundantly throughout the body and is involved in many metabolic processes. It is synthesized from GLUTAMIC ACID and AMMONIA. It is the principal carrier of NITROGEN in the body and is an important energy source for many cells.. L-glutamine : An optically active form of glutamine having L-configuration.. glutamine : An alpha-amino acid that consists of butyric acid bearing an amino substituent at position 2 and a carbamoyl substituent at position 4.	3.23	1	0	amino acid zwitterion; glutamine family amino acid; glutamine; L-alpha-amino acid; polar amino acid zwitterion; proteinogenic amino acid	EC 1.14.13.39 (nitric oxide synthase) inhibitor; Escherichia coli metabolite; human metabolite; metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite
cyanides Cyanides: Inorganic salts of HYDROGEN CYANIDE containing the -CN radical. The concept also includes isocyanides. It is distinguished from NITRILES, which denotes organic compounds containing the -CN radical.. cyanides : Salts and C-organyl derivatives of hydrogen cyanide, HC#N.. isocyanide : The isomer HN(+)#C(-) of hydrocyanic acid, HC#N, and its hydrocarbyl derivatives RNC (RN(+)#C(-)).. cyanide : A pseudohalide anion that is the conjugate base of hydrogen cyanide.	2.37	2	0	pseudohalide anion	EC 1.9.3.1 (cytochrome c oxidase) inhibitor
vincristine [no description available]	3.84	3	0	acetate ester; formamides; methyl ester; organic heteropentacyclic compound; organic heterotetracyclic compound; tertiary alcohol; tertiary amino compound; vinca alkaloid	antineoplastic agent; drug; microtubule-destabilising agent; plant metabolite; tubulin modulator
physostigmine Physostigmine: A cholinesterase inhibitor that is rapidly absorbed through membranes. It can be applied topically to the conjunctiva. It also can cross the blood-brain barrier and is used when central nervous system effects are desired, as in the treatment of severe anticholinergic toxicity.	6.27	6	2	carbamate ester; indole alkaloid	antidote to curare poisoning; EC 3.1.1.8 (cholinesterase) inhibitor; miotic
sucrose Saccharum: A plant genus of the family POACEAE widely cultivated in the tropics for the sweet cane that is processed into sugar.	1.98	1	0	glycosyl glycoside	algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; osmolyte; Saccharomyces cerevisiae metabolite; sweetening agent
ethinyl estradiol Ethinyl Estradiol: A semisynthetic alkylated ESTRADIOL with a 17-alpha-ethinyl substitution. It has high estrogenic potency when administered orally, and is often used as the estrogenic component in ORAL CONTRACEPTIVES.. 17alpha-ethynylestradiol : A 3-hydroxy steroid that is estradiol substituted by a ethynyl group at position 17. It is a xenoestrogen synthesized from estradiol and has been shown to exhibit high estrogenic potency on oral administration.	2.04	1	0	17-hydroxy steroid; 3-hydroxy steroid; terminal acetylenic compound	xenoestrogen
testosterone propionate Testosterone Propionate: An ester of TESTOSTERONE with a propionate substitution at the 17-beta position.. androgen : A sex hormone that stimulates or controls the development and maintenance of masculine characteristics in vertebrates by binding to androgen receptors.	2.02	1	0	steroid ester
tubocurarine Tubocurarine: A neuromuscular blocker and active ingredient in CURARE; plant based alkaloid of Menispermaceae.. tubocurarine : A benzylisoquinoline alkaloid muscle relaxant which constitutes the active component of curare.. isoquinoline alkaloid : Any alkaloid that has a structure based on an isoquinoline nucleus. They are derived from the amino acids like tyrosine and phenylalanine.	5.82	7	1	bisbenzylisoquinoline alkaloid	drug allergen; muscle relaxant; nicotinic antagonist
apomorphine Apomorphine: A derivative of morphine that is a dopamine D2 agonist. It is a powerful emetic and has been used for that effect in acute poisoning. It has also been used in the diagnosis and treatment of parkinsonism, but its adverse effects limit its use.	3.8	3	0	aporphine alkaloid	alpha-adrenergic drug; antidyskinesia agent; antiparkinson drug; dopamine agonist; emetic; serotonergic drug
methyltestosterone Methyltestosterone: A synthetic hormone used for androgen replacement therapy and as an hormonal antineoplastic agent (ANTINEOPLASTIC AGENTS, HORMONAL).. methyltestosterone : A 17beta-hydroxy steroid that is testosterone bearing a methyl group at the 17alpha position.	3.23	1	0	17beta-hydroxy steroid; 3-oxo-Delta(4) steroid; enone	anabolic agent; androgen; antineoplastic agent
tetrabenazine 9,10-dimethoxy-3-isobutyl-1,3,4,6,7,11b-hexahydro-2H-pyrido[2,1-a]isoquinolin-2-one : A benzoquinolizine that is 1,2,3,4,4a,9,10,10a-octahydrophenanthrene in which the carbon at position 10a is replaced by a nitrogen and which is substituted by an isobutyl group at position 2, an oxo group at position 3, and methoxy groups at positions 6 and 7.	3.23	1	0	benzoquinolizine; cyclic ketone; tertiary amino compound
adenosine diphosphate Adenosine Diphosphate: Adenosine 5'-(trihydrogen diphosphate). An adenine nucleotide containing two phosphate groups esterified to the sugar moiety at the 5'-position.	1.96	1	0	adenosine 5'-phosphate; purine ribonucleoside 5'-diphosphate	fundamental metabolite; human metabolite
cephalothin Cephalothin: A cephalosporin antibiotic.. cefalotin : A semisynthetic, first-generation cephalosporin antibiotic with acetoxymethyl and (2-thienylacetyl)nitrilo moieties at positions 3 and 7, respectively, of the core structure. Administered parenterally during surgery and to treat a wide spectrum of blood infections.	2.38	2	0	azabicycloalkene; beta-lactam antibiotic allergen; carboxylic acid; cephalosporin; semisynthetic derivative; thiophenes	antibacterial drug; antimicrobial agent
uridine [no description available]	1.94	1	0	uridines	drug metabolite; fundamental metabolite; human metabolite
kanamycin a Kanamycin: Antibiotic complex produced by Streptomyces kanamyceticus from Japanese soil. Comprises 3 components: kanamycin A, the major component, and kanamycins B and C, the minor components.. kanamycin : Kanamycin is a naturally occurring antibiotic complex from Streptomyces kanamyceticus that consists of several components: kanamycin A, the major component (also usually designated as kanamycin), and kanamycins B, C, D and X the minor components.	3.58	2	0	kanamycins	bacterial metabolite
levodopa Levodopa: The naturally occurring form of DIHYDROXYPHENYLALANINE and the immediate precursor of DOPAMINE. Unlike dopamine itself, it can be taken orally and crosses the blood-brain barrier. It is rapidly taken up by dopaminergic neurons and converted to DOPAMINE. It is used for the treatment of PARKINSONIAN DISORDERS and is usually given with agents that inhibit its conversion to dopamine outside of the central nervous system.. L-dopa : An optically active form of dopa having L-configuration. Used to treat the stiffness, tremors, spasms, and poor muscle control of Parkinson's disease	2.38	2	0	amino acid zwitterion; dopa; L-tyrosine derivative; non-proteinogenic L-alpha-amino acid	allelochemical; antidyskinesia agent; antiparkinson drug; dopaminergic agent; hapten; human metabolite; mouse metabolite; neurotoxin; plant growth retardant; plant metabolite; prodrug
edetic acid Edetic Acid: A chelating agent that sequesters a variety of polyvalent cations such as CALCIUM. It is used in pharmaceutical manufacturing and as a food additive.	3.55	2	0	ethylenediamine derivative; polyamino carboxylic acid; tetracarboxylic acid	anticoagulant; antidote; chelator; copper chelator; geroprotector
tyrosine Tyrosine: A non-essential amino acid. In animals it is synthesized from PHENYLALANINE. It is also the precursor of EPINEPHRINE; THYROID HORMONES; and melanin.. tyrosine : An alpha-amino acid that is phenylalanine bearing a hydroxy substituent at position 4 on the phenyl ring.	1.94	1	0	amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; proteinogenic amino acid; tyrosine	EC 1.3.1.43 (arogenate dehydrogenase) inhibitor; fundamental metabolite; micronutrient; nutraceutical
cysteamine Cysteamine: A mercaptoethylamine compound that is endogenously derived from the COENZYME A degradative pathway. The fact that cysteamine is readily transported into LYSOSOMES where it reacts with CYSTINE to form cysteine-cysteamine disulfide and CYSTEINE has led to its use in CYSTINE DEPLETING AGENTS for the treatment of CYSTINOSIS.. cysteamine : An amine that consists of an ethane skeleton substituted with a thiol group at C-1 and an amino group at C-2.	3.23	1	0	amine; thiol	geroprotector; human metabolite; mouse metabolite; radiation protective agent
acetylcholine chloride acetylcholine chloride : The chloride salt of acetylcholine, and a parasympatomimetic drug.	3.23	1	0	quaternary ammonium salt
mepazine mepazine: major descriptor (66-85); on-line search PHENOTHIAZINES (66-85); Index Medicus search MEPAZINE (66-85); RN given refers to parent cpd. pacatal : A phenothiazine derivative in which 10H-phenothiazine has an N-methylpiperidin-4-ylmethyl substituent at the N-10 position.	3.48	2	0	phenothiazines
acepromazine Acepromazine: A phenothiazine that is used in the treatment of PSYCHOSES.. acepromazine : A member of the class of phenothiazines that is 10H-phenothiazine substituted by an acetyl group at position 2 and a 3-(dimethylamino)propyl group at position 10.	2.86	4	0	aromatic ketone; methyl ketone; phenothiazines; tertiary amino compound	phenothiazine antipsychotic drug
adenosine monophosphate Adenosine Monophosphate: Adenine nucleotide containing one phosphate group esterified to the sugar moiety in the 2'-, 3'-, or 5'-position.	1.96	1	0	adenosine 5'-phosphate; purine ribonucleoside 5'-monophosphate	adenosine A1 receptor agonist; cofactor; EC 3.1.3.1 (alkaline phosphatase) inhibitor; EC 3.1.3.11 (fructose-bisphosphatase) inhibitor; fundamental metabolite; micronutrient; nutraceutical
methicillin Methicillin: One of the PENICILLINS which is resistant to PENICILLINASE but susceptible to a penicillin-binding protein. It is inactivated by gastric acid so administered by injection.. methicillin : A penicillin that is 6-aminopenicillanic acid in which one of the amino hydrogens is replaced by a 2,6-dimethoxybenzoyl group.	2.04	1	0	penicillin allergen; penicillin	antibacterial drug
cloxacillin Cloxacillin: A semi-synthetic antibiotic that is a chlorinated derivative of OXACILLIN.. cloxacillin : A semisynthetic penicillin antibiotic carrying a 3-(2-chlorophenyl)-5-methylisoxazole-4-carboxamido group at position 6.	3.23	1	0	penicillin allergen; penicillin; semisynthetic derivative	antibacterial agent; antibacterial drug
bretylium tosylate Bretylium Tosylate: An agent that blocks the release of adrenergic transmitters and may have other actions. It was formerly used as an antihypertensive agent, but is now proposed as an anti-arrhythmic.. bretylium tosylate : The tosylate salt of bretylium. It blocks noradrenaline release from the peripheral sympathetic nervous system, and is used in emergency medicine, cardiology, and other specialties for the acute management of ventricular tachycardia and ventricular fibrillation.	2.02	1	0	organosulfonate salt; quaternary ammonium salt	adrenergic antagonist; anti-arrhythmia drug; antihypertensive agent
leucine Leucine: An essential branched-chain amino acid important for hemoglobin formation.. leucine : A branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isobutyl group.	2.64	3	0	amino acid zwitterion; L-alpha-amino acid; leucine; proteinogenic amino acid; pyruvate family amino acid	algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite
calcium acetate calcium acetate: a principal compound used as phosphate binders in patients with chronic renal failure; used like sevelamer. calcium acetate : The calcium salt of acetic acid. It is used, commonly as a hydrate, to treat hyperphosphataemia (excess phosphate in the blood) in patients with kidney disease: the calcium ion combines with dietary phosphate to form (insoluble) calcium phosphate, which is excreted in the faeces.	3.23	1	0	calcium salt	chelator
2-aminoisobutyric acid 2-aminoisobutyric acid: RN given refers to unlabeled cpd. 2-aminoisobutyric acid : A rare, non-protein amino acid and end-product of pyrimidine metabolism, excreted in urine and found in some antibiotics of fungal origin. With the exception of a few bacteria, it is non-metabolisable, and therefore used in bioassays.	1.98	1	0	2,2-dialkylglycine zwitterion; 2,2-dialkylglycine
methionine Methionine: A sulfur-containing essential L-amino acid that is important in many body functions.. methionine : A sulfur-containing amino acid that is butyric acid bearing an amino substituent at position 2 and a methylthio substituent at position 4.	3.55	2	0	aspartate family amino acid; L-alpha-amino acid; methionine zwitterion; methionine; proteinogenic amino acid	antidote to paracetamol poisoning; human metabolite; micronutrient; mouse metabolite; nutraceutical
colchicine (S)-colchicine : A colchicine that has (S)-configuration. It is a secondary metabolite, has anti-inflammatory properties and is used to treat gout, crystal-induced joint inflammation, familial Mediterranean fever, and many other conditions.	3.58	2	0	alkaloid; colchicine	anti-inflammatory agent; gout suppressant; mutagen
gallamine triethiodide Gallamine Triethiodide: A synthetic nondepolarizing blocking drug. The actions of gallamine triethiodide are similar to those of TUBOCURARINE, but this agent blocks the cardiac vagus and may cause sinus tachycardia and, occasionally, hypertension and increased cardiac output. It should be used cautiously in patients at risk from increased heart rate but may be preferred for patients with bradycardia. (From AMA Drug Evaluations Annual, 1992, p198)	4.84	8	1
mebanazine mebanazine: RN given refers to parent cpd without isomeric designation; structure	3.23	1	0	benzenes
oxacillin Oxacillin: An antibiotic similar to FLUCLOXACILLIN used in resistant staphylococci infections.. oxacillin : A penicillin antibiotic carrying a 5-methyl-3-phenylisoxazole-4-carboxamide group at position 6beta.	3.58	2	0	penicillin	antibacterial agent; antibacterial drug
egtazic acid Egtazic Acid: A chelating agent relatively more specific for calcium and less toxic than EDETIC ACID.. ethylene glycol bis(2-aminoethyl)tetraacetic acid : A diether that is ethylene glycol in which the hydrogens of the hydroxy groups have been replaced by 2-[bis(carboxymethyl)amino]ethyl group respectively.	2.02	1	0	diether; tertiary amino compound; tetracarboxylic acid	chelator
barbituric acid barbituric acid: RN given refers to parent cpd; structure from Merck Index, 9th ed, #966. barbituric acid : A barbiturate, the structure of which is that of perhydropyrimidine substituted at C-2, -4 and -6 by oxo groups. Barbituric acid is the parent compound of barbiturate drugs, although it is not itself pharmacologically active.	3.81	12	0	barbiturates	allergen; xenobiotic
chloroform Chloroform: A commonly used laboratory solvent. It was previously used as an anesthetic, but was banned from use in the U.S. due to its suspected carcinogenicity.. chloroform : A one-carbon compound that is methane in which three of the hydrogens are replaced by chlorines.	4.43	7	0	chloromethanes; one-carbon compound	carcinogenic agent; central nervous system drug; inhalation anaesthetic; non-polar solvent; refrigerant
cycloserine Cycloserine: Antibiotic substance produced by Streptomyces garyphalus.. D-cycloserine : A 4-amino-1,2-oxazolidin-3-one that has R configuration. It is an antibiotic produced by Streptomyces garyphalus or S. orchidaceus and is used as part of a multi-drug regimen for the treatment of tuberculosis when resistance to, or toxicity from, primary drugs has developed. An analogue of D-alanine, it interferes with bacterial cell wall synthesis in the cytoplasm by competitive inhibition of L-alanine racemase (which forms D-alanine from L-alanine) and D-alanine--D-alanine ligase (which incorporates D-alanine into the pentapeptide required for peptidoglycan formation and bacterial cell wall synthesis).	3.23	1	0	4-amino-1,2-oxazolidin-3-one; organonitrogen heterocyclic antibiotic; organooxygen heterocyclic antibiotic; zwitterion	antiinfective agent; antimetabolite; antitubercular agent; metabolite; NMDA receptor agonist
benziodarone benziodarone: minor descriptor (75-89); on-line & INDEX MEDICUS search BENZOFURANS (68-89) & IODOBENZOATES (74)	3.23	1	0	aromatic ketone
ampicillin Ampicillin: Semi-synthetic derivative of penicillin that functions as an orally active broad-spectrum antibiotic.. ampicillin : A penicillin in which the substituent at position 6 of the penam ring is a 2-amino-2-phenylacetamido group.	3.58	2	0	beta-lactam antibiotic; penicillin allergen; penicillin	antibacterial drug
mannitol [no description available]	3.82	3	0	mannitol	allergen; antiglaucoma drug; compatible osmolytes; Escherichia coli metabolite; food anticaking agent; food bulking agent; food humectant; food stabiliser; food thickening agent; hapten; metabolite; osmotic diuretic; sweetening agent
cytarabine [no description available]	3.56	2	0	beta-D-arabinoside; monosaccharide derivative; pyrimidine nucleoside	antimetabolite; antineoplastic agent; antiviral agent; immunosuppressive agent
trifluridine Trifluridine: An antiviral derivative of THYMIDINE used mainly in the treatment of primary keratoconjunctivitis and recurrent epithelial keratitis due to HERPES SIMPLEX virus. (From Martindale, The Extra Pharmacopoeia, 30th ed, p557). trifluridine : A pyrimidine 2'-deoxyribonucleoside compound having 5-trifluoromethyluracil as the nucleobase. An antiviral drug used mainly in the treatment of primary keratoconjunctivitis and recurrent epithelial keratitis.	2.02	1	0	nucleoside analogue; organofluorine compound; pyrimidine 2'-deoxyribonucleoside	antimetabolite; antineoplastic agent; antiviral drug; EC 2.1.1.45 (thymidylate synthase) inhibitor
medroxyprogesterone acetate [no description available]	2.02	1	0	20-oxo steroid; 3-oxo-Delta(4) steroid; acetate ester; corticosteroid; steroid ester	adjuvant; androgen; antineoplastic agent; antioxidant; female contraceptive drug; inhibitor; progestin; synthetic oral contraceptive
mestranol [no description available]	2.02	1	0	17beta-hydroxy steroid; aromatic ether; terminal acetylenic compound	prodrug; xenoestrogen
methaqualone Methaqualone: A quinazoline derivative with hypnotic and sedative properties. It has been withdrawn from the market in many countries because of problems with abuse. (From Martindale, The Extra Pharmacopoeia, 30th ed, p604). methaqualone : A member of the class of quinazolines that is quinazolin-4-one substituted at positions 2 and 3 by methyl and o-tolyl groups respectively. A depressant that increases the activity of the GABA receptors in the brain and nervous system, it is used as a sedative and hypnotic medication. It became popular as a recreational drug and club drug in the late 1960s and 1970s.	1.94	1	0	quinazolines	GABA agonist; sedative
tryptophan Tryptophan: An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals.. tryptophan : An alpha-amino acid that is alanine bearing an indol-3-yl substituent at position 3.	1.95	1	0	erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid zwitterion; L-alpha-amino acid; proteinogenic amino acid; tryptophan zwitterion; tryptophan	antidepressant; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite
arginine Arginine: An essential amino acid that is physiologically active in the L-form.. arginine : An alpha-amino acid that is glycine in which the alpha-is substituted by a 3-guanidinopropyl group.	3.23	1	0	arginine; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid	biomarker; Escherichia coli metabolite; micronutrient; mouse metabolite; nutraceutical
methyl chloride Methyl Chloride: A hydrocarbon used as an industrial solvent. It has been used as an aerosal propellent, as a refrigerant and as a local anesthetic. (From Martindale, The Extra Pharmacopoeia, 31st ed, p1403). chlorocarbon : Compounds consisting wholly of chlorine and carbon.. chloromethane : A one-carbon compound that is methane in which one of the hydrogens is replaced by a chloro group.	1.94	1	0	chloromethanes; methyl halides	marine metabolite; mutagen; refrigerant
ethyl chloride Ethyl Chloride: A gas that condenses under slight pressure. Because of its low boiling point ethyl chloride sprayed on skin produces an intense cold by evaporation. Cold blocks nerve conduction. Ethyl chloride has been used in surgery but is primarily used to relieve local pain in sports medicine.. chloroethane : The simplest and least toxic member of the class of chloroethanes, that is ethane in which a single hydrogen is substituted by a chlorine. A colourless gas at room temperature and pressure (boiling point 12degreeC), it is used as a mild topical anaesthetic to numb the skin prior to ear piercing, skin biopsies, etc., and is also used in the treatment of sports injuries. It was formerly used in the production of tetraethyllead.	2.86	4	0	chloroethanes	antipruritic drug; inhalation anaesthetic; local anaesthetic
ethylene oxide Ethylene Oxide: A colorless and flammable gas at room temperature and pressure. Ethylene oxide is a bactericidal, fungicidal, and sporicidal disinfectant. It is effective against most micro-organisms, including viruses. It is used as a fumigant for foodstuffs and textiles and as an agent for the gaseous sterilization of heat-labile pharmaceutical and surgical materials. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p794). oxirane : A saturated organic heteromonocyclic parent that is a three-membered heterocycle of two carbon atoms and one oxygen atom.	1.95	1	0	gas molecular entity; oxacycle; saturated organic heteromonocyclic parent	allergen; mouse metabolite; mutagen
trichloroacetic acid Trichloroacetic Acid: A strong acid used as a protein precipitant in clinical chemistry and also as a caustic for removing warts.. trichloroacetic acid : A monocarboxylic acid that is acetic acid in which all three methyl hydrogens are substituted by chlorine.	1.95	1	0	monocarboxylic acid; organochlorine compound	carcinogenic agent; metabolite; mouse metabolite
perflutren Definity: a fluorocarbon-filled ultrasonic contrast agent; Definity is tradename. octafluoropropane : A fluorocarbon that is propane in which all of the hydrogens have been replaced by fluorines.	3.23	1	0	fluoroalkane; fluorocarbon
triamcinolone acetonide Triamcinolone Acetonide: An esterified form of TRIAMCINOLONE. It is an anti-inflammatory glucocorticoid used topically in the treatment of various skin disorders. Intralesional, intramuscular, and intra-articular injections are also administered under certain conditions.. triamcinolone acetonide : A synthetic glucocorticoid that is the 16,17-acetonide of triamcinolone. Used to treat various skin infections.	2.04	1	0	11beta-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(4) steroid; cyclic ketal; fluorinated steroid; glucocorticoid; primary alpha-hydroxy ketone	anti-allergic agent; anti-inflammatory drug
fluoxymesterone Fluoxymesterone: An anabolic steroid that has been used in the treatment of male HYPOGONADISM, delayed puberty in males, and in the treatment of breast neoplasms in women.	3.23	1	0	11beta-hydroxy steroid; 17beta-hydroxy steroid; 3-oxo-Delta(4) steroid; anabolic androgenic steroid; fluorinated steroid	anabolic agent; antineoplastic agent
allylpropymal allylpropymal: RN given refers to parent cpd. aprobarbital : A member of the class of barbiturates that is pyrimidine-2,4,6(1H,3H,5H)-trione substituted by an isopropyl and a prop-1-en-3-yl group at position 5.	2.36	2	0	barbiturates
phencyclidine Phencyclidine: A hallucinogen formerly used as a veterinary anesthetic, and briefly as a general anesthetic for humans. Phencyclidine is similar to KETAMINE in structure and in many of its effects. Like ketamine, it can produce a dissociative state. It exerts its pharmacological action through inhibition of NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE). As a drug of abuse, it is known as PCP and Angel Dust.. phencyclidine : A member of the class of piperidines that is piperidine in which the nitrogen is substituted with a 1-phenylcyclohexyl group. Formerly used as an anaesthetic agent, it exhibits both hallucinogenic and neurotoxic effects.	9.32	6	0	benzenes; piperidines	anaesthetic; neurotoxin; NMDA receptor antagonist; psychotropic drug
butobarbital butobarbital: Butobarbital should be distinguished from Butabarbital (a synonym for Secbutabarbital)	1.95	1	0	barbiturates
methsuximide methsuximide: anticonvulsant effective in petit mal & psychomotor epilepsy; has a number of unpleasant & toxic side effects; minor descriptor (75-86); on-line & INDEX MEDICUS search SUCCINIMIDES (75-86); RN given refers to parent cpd without isomeric designation	3.23	1	0	organic molecular entity
tromethamine Tromethamine: An organic amine proton acceptor. It is used in the synthesis of surface-active agents and pharmaceuticals; as an emulsifying agent for cosmetic creams and lotions, mineral oil and paraffin wax emulsions, as a biological buffer, and used as an alkalizer. (From Merck, 11th ed; Martindale, The Extra Pharmacopoeia, 30th ed, p1424)	3.23	1	0	primary amino compound; triol	buffer
trichloroethylene Trichloroethylene: A highly volatile inhalation anesthetic used mainly in short surgical procedures where light anesthesia with good analgesia is required. It is also used as an industrial solvent. Prolonged exposure to high concentrations of the vapor can lead to cardiotoxicity and neurological impairment.. triol : A chemical compound containing three hydroxy groups.	6.6	9	2	chloroethenes	inhalation anaesthetic; mouse metabolite
dichloroacetic acid [no description available]	2.04	1	0	monocarboxylic acid; organochlorine compound	astringent; marine metabolite
cyclizine Cyclizine: A histamine H1 antagonist given by mouth or parenterally for the control of postoperative and drug-induced vomiting and in motion sickness. (From Martindale, The Extra Pharmacopoeia, 30th ed, p935). cyclizine : An N-alkylpiperazine in which one nitrogen of the piperazine ring is substituted by a methyl group, while the other is substituted by a diphenylmethyl group.	3.32	1	1	N-alkylpiperazine	antiemetic; central nervous system depressant; cholinergic antagonist; H1-receptor antagonist; local anaesthetic
methylprednisolone Methylprednisolone: A PREDNISOLONE derivative with similar anti-inflammatory action.. 6alpha-methylprednisolone : The 6alpha-stereoisomer of 6-methylprednisolone.	4.05	4	0	6-methylprednisolone; primary alpha-hydroxy ketone; tertiary alpha-hydroxy ketone	adrenergic agent; anti-inflammatory drug; antiemetic; environmental contaminant; neuroprotective agent; xenobiotic
brompheniramine Brompheniramine: Histamine H1 antagonist used in treatment of allergies, rhinitis, and urticaria.. brompheniramine : Pheniramine in which the hydrogen at position 4 of the phenyl substituent is substituted by bromine. A histamine H1 receptor antagonist, brompheniramine is used (commonly as its maleate salt) for the symptomatic relief of allergic conditions, including rhinitis and conjunctivitis.	3.23	1	0	organobromine compound; pyridines	anti-allergic agent; H1-receptor antagonist
penicillin v Penicillin V: A broad-spectrum penicillin antibiotic used orally in the treatment of mild to moderate infections by susceptible gram-positive organisms.. phenoxymethylpenicillin : A penicillin compound having a 6beta-(phenoxyacetyl)amino side-chain.	3.58	2	0	penicillin allergen; penicillin
isosorbide dinitrate Isosorbide Dinitrate: A vasodilator used in the treatment of ANGINA PECTORIS. Its actions are similar to NITROGLYCERIN but with a slower onset of action.	3.58	2	0	glucitol derivative; nitrate ester	nitric oxide donor; vasodilator agent
pseudoephedrine Pseudoephedrine: A phenethylamine that is an isomer of EPHEDRINE which has less central nervous system effects and usage is mainly for respiratory tract decongestion.. pseudoephedrine : A member of the class of the class of phenylethanolamines that is (1S)-2-(methylamino)-1-phenylethan-1-ol in which the pro-S hydrogen at position 2 is replaced by a methyl group.	3.23	1	0	phenylethanolamines; secondary alcohol; secondary amino compound	anti-asthmatic drug; bronchodilator agent; central nervous system drug; nasal decongestant; plant metabolite; sympathomimetic agent; vasoconstrictor agent; xenobiotic
diethylpropion Diethylpropion: A appetite depressant considered to produce less central nervous system disturbance than most drugs in this therapeutic category. It is also considered to be among the safest for patients with hypertension. (From AMA Drug Evaluations Annual, 1994, p2290). diethylpropion : An aromatic ketone that is propiophenone in which one of the hydrogens alpha- to the carbonyl is substituted by a diethylamino group. A central stimulant and indirect-acting sympathomimetic, it is an appetite depressant and is used as the hydrochloride as an anoretic in the short term management of obesity.	3.23	1	0	aromatic ketone; tertiary amine	appetite depressant
quinoxalines quinoxaline : A naphthyridine in which the nitrogens are at positions 1 and 4.	2.38	2	0	mancude organic heterobicyclic parent; naphthyridine; ortho-fused heteroarene
phenothiazine 10H-phenothiazine : The 10H-tautomer of phenothiazine.	1.93	1	0	phenothiazine	ferroptosis inhibitor; plant metabolite; radical scavenger
benzonatate benzonatate: structure in Merck Index, 9th ed, #1107. benzonatate : The ester obtained by formal condensation of 4-butylaminobenzoic acid with nonaethylene glycol monomethyl ether. Structurally related to procaine and benzocaine, it has an anaesthetic effect on the stretch sensors in the lungs, and is used as a non-narcotic cough suppressant.	3.23	1	0	benzoate ester; secondary amino compound; substituted aniline	anaesthetic; antitussive
deanol Deanol: An antidepressive agent that has also been used in the treatment of movement disorders. The mechanism of action is not well understood.. N,N-dimethylethanolamine : A tertiary amine that is ethanolamine having two N-methyl substituents.	3.34	1	1	ethanolamines; tertiary amine	curing agent; radical scavenger
pyrroles 1H-pyrrole : A tautomer of pyrrole that has the double bonds at positions 2 and 4.. pyrrole : A five-membered monocyclic heteroarene comprising one NH and four CH units which forms the parent compound of the pyrrole group of compounds. Its five-membered ring structure has three tautomers. A 'closed class'.. azole : Any monocyclic heteroarene consisting of a five-membered ring containing nitrogen. Azoles can also contain one or more other non-carbon atoms, such as nitrogen, sulfur or oxygen.	2.01	1	0	pyrrole; secondary amine
thiophenes Thiophenes: A monocyclic heteroarene furan in which the oxygen atom is replaced by a sulfur.. thiophenes : Compounds containing at least one thiophene ring.	1.94	1	0	mancude organic heteromonocyclic parent; monocyclic heteroarene; thiophenes; volatile organic compound	non-polar solvent
ergotamine Ergotamine: A vasoconstrictor found in ergot of Central Europe. It is a serotonin agonist that has been used as an oxytocic agent and in the treatment of MIGRAINE DISORDERS.. ergotamine : A peptide ergot alkaloid that is dihydroergotamine in which a double bond replaces the single bond between positions 9 and 10.	2.04	1	0	peptide ergot alkaloid	alpha-adrenergic agonist; mycotoxin; non-narcotic analgesic; oxytocic; serotonergic agonist; vasoconstrictor agent
estradiol dipropionate estradiol dipropionate: RN given refers to (17beta)-isomer; RN for cpd without isomeric designation not in Chemline 7/83	2.02	1	0	steroid ester
methylergonovine Methylergonovine: A homolog of ERGONOVINE containing one more CH2 group. (Merck Index, 11th ed)	3.23	1	0	ergoline alkaloid
neostigmine bromide neostigmine bromide : The bromide salt of neostigmine.	2.04	1	0	bromide salt
2,2,2-trichloroethanol [no description available]	1.99	1	0	chloroethanol	mouse metabolite
mephobarbital Mephobarbital: A barbiturate that is metabolized to PHENOBARBITAL. It has been used for similar purposes, especially in EPILEPSY, but there is no evidence mephobarbital offers any advantage over PHENOBARBITAL.. mephobarbital : A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at N-1 by a methyl group and at C-5 by ethyl and phenyl groups.	1.94	1	0	barbiturates	anticonvulsant
vanillic acid Vanillic Acid: A flavoring agent. It is the intermediate product in the two-step bioconversion of ferulic acid to vanillin. (J Biotechnol 1996;50(2-3):107-13).. vanillic acid : A monohydroxybenzoic acid that is 4-hydroxybenzoic acid substituted by a methoxy group at position 3.	1.97	1	0	methoxybenzoic acid; monohydroxybenzoic acid	plant metabolite
cinchophen cinchophen: was heading 1963-94; ACIPHENOCHINOLIUM was see CHINOPHEN 1978-94; use QUINOLINES to search CINCHOPHEN 1966-94	3.23	1	0	quinolines
yohimbine Yohimbine: A plant alkaloid with alpha-2-adrenergic blocking activity. Yohimbine has been used as a mydriatic and in the treatment of ERECTILE DYSFUNCTION.. yohimbine : An indole alkaloid with alpha2-adrenoceptor antagonist activity. It is produced by Corynanthe johimbe and Rauwolfia serpentina.	1.96	1	0	methyl 17-hydroxy-20xi-yohimban-16-carboxylate	alpha-adrenergic antagonist; dopamine receptor D2 antagonist; serotonergic antagonist
3-o-methylglucose 3-O-Methylglucose: A non-metabolizable glucose analogue that is not phosphorylated by hexokinase. 3-O-Methylglucose is used as a marker to assess glucose transport by evaluating its uptake within various cells and organ systems. (J Neurochem 1993;60(4):1498-504). 3-O-methyl-D-glucose : A D-aldohexose that is D-glucose in which the hydrogen of the hydroxy group at position 3 has been substituted by a methyl group. It is a non-metabolisable glucose analogue that is not phosphorylated by hexokinase and is used as a marker to assess glucose transport by evaluating its uptake within various cells and organ systems.	2	1	0	D-aldohexose derivative
nafcillin Nafcillin: A semi-synthetic antibiotic related to penicillin.. nafcillin : A penicillin in which the substituent at position 6 of the penam ring is a (2-ethoxy-1-naphthoyl)amino group.	3.84	3	0	penicillin allergen; penicillin	antibacterial drug
acridines Acridines: Compounds that include the structure of acridine.. acridine : A polycyclic heteroarene that is anthracene in which one of the central CH groups is replaced by a nitrogen atom.	1.94	1	0	acridines; mancude organic heterotricyclic parent; polycyclic heteroarene	genotoxin
indazoles Indazoles: A group of heterocyclic aromatic organic compounds consisting of the fusion of BENZENE and PYRAZOLES.	1.99	1	0	indazole
ephedrine Ephedrine: A phenethylamine found in EPHEDRA SINICA. PSEUDOEPHEDRINE is an isomer. It is an alpha- and beta-adrenergic agonist that may also enhance release of norepinephrine. It has been used for asthma, heart failure, rhinitis, and urinary incontinence, and for its central nervous system stimulatory effects in the treatment of narcolepsy and depression. It has become less extensively used with the advent of more selective agonists.. (-)-ephedrine : A phenethylamine alkaloid that is 2-phenylethanamine substituted by a methyl group at the amino nitrogen and a methyl and a hydroxy group at position 2 and 1 respectively.	3.23	1	0	phenethylamine alkaloid; phenylethanolamines	bacterial metabolite; environmental contaminant; nasal decongestant; plant metabolite; sympathomimetic agent; vasoconstrictor agent; xenobiotic
benactyzine Benactyzine: A centrally acting muscarinic antagonist. Benactyzine has been used in the treatment of depression and is used in research to investigate the role of cholinergic systems on behavior.	1.94	1	0	diarylmethane
pirinitramide Pirinitramide: A diphenylpropylamine with intense narcotic analgesic activity of long duration. It is a derivative of MEPERIDINE with similar activity and usage.	2.41	2	0	nitrile
edrophonium bromide [no description available]	2.04	1	0
estradiol 17 beta-cypionate [no description available]	2.02	1	0	steroid ester
testosterone enanthate [no description available]	2.02	1	0	heptanoate ester; sterol ester	androgen
aminophylline Aminophylline: A drug combination that contains THEOPHYLLINE and ethylenediamine. It is more soluble in water than theophylline but has similar pharmacologic actions. It's most common use is in bronchial asthma, but it has been investigated for several other applications.. aminophylline : A mixture comprising of theophylline and ethylenediamine in a 2:1 ratio.	3.48	2	0	mixture	bronchodilator agent; cardiotonic drug
azacitidine Azacitidine: A pyrimidine analogue that inhibits DNA methyltransferase, impairing DNA methylation. It is also an antimetabolite of cytidine, incorporated primarily into RNA. Azacytidine has been used as an antineoplastic agent.. 5-azacytidine : An N-glycosyl-1,3,5-triazine that is 4-amino-1,3,5-triazin-2(1H)-one substituted by a beta-D-ribofuranosyl residue via an N-glycosidic linkage. An antineoplastic agent, it is used in the treatment of myeloid leukaemia.	3.58	2	0	N-glycosyl-1,3,5-triazine; nucleoside analogue	antineoplastic agent
flurothyl Flurothyl: A convulsant primarily used in experimental animals. It was formerly used to induce convulsions as a alternative to electroshock therapy.	2.35	2	0	ether
galantamine Galantamine: A benzazepine derived from norbelladine. It is found in GALANTHUS and other AMARYLLIDACEAE. It is a cholinesterase inhibitor that has been used to reverse the muscular effects of GALLAMINE TRIETHIODIDE and TUBOCURARINE and has been studied as a treatment for ALZHEIMER DISEASE and other central nervous system disorders.. galanthamine : A benzazepine alkaloid isolated from certain species of daffodils.	3.58	2	0	benzazepine alkaloid fundamental parent; benzazepine alkaloid; organic heterotetracyclic compound; tertiary amino compound	antidote to curare poisoning; cholinergic drug; EC 3.1.1.7 (acetylcholinesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; plant metabolite
nandrolone decanoate Nandrolone Decanoate: Decanoic acid ester of nandrolone that is used as an anabolic agent to prevent or treat WASTING SYNDROME associated with severe chronic illness or HIV infection (HIV WASTING SYNDROME). It may also be used in the treatment of POSTMENOPAUSAL OSTEOPOROSIS.	3.23	1	0	steroid ester
betamethasone Betamethasone: A glucocorticoid given orally, parenterally, by local injection, by inhalation, or applied topically in the management of various disorders in which corticosteroids are indicated. Its lack of mineralocorticoid properties makes betamethasone particularly suitable for treating cerebral edema and congenital adrenal hyperplasia. (From Martindale, The Extra Pharmacopoeia, 30th ed, p724)	2.43	2	0	11beta-hydroxy steroid; 17alpha-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(1),Delta(4)-steroid; fluorinated steroid; glucocorticoid; primary alpha-hydroxy ketone; tertiary alpha-hydroxy ketone	anti-asthmatic agent; anti-inflammatory drug; immunosuppressive agent
n-pentyl nitrite Amyl Nitrite: A vasodilator that is administered by inhalation. It is also used recreationally due to its supposed ability to induce euphoria and act as an aphrodisiac.. n-pentyl nitrite : A nitrite ester having n-pentyl as the alkyl group.	1.94	1	0	nitrite esters	vasodilator agent
dextropropoxyphene Dextropropoxyphene: A narcotic analgesic structurally related to METHADONE. Only the dextro-isomer has an analgesic effect; the levo-isomer appears to exert an antitussive effect.. propoxyphene : A racemate of the (1R,2R)- and (1S,2R)- diastereoisomers.. dextropropoxyphene : The (1S,2R)-(+)-diastereoisomer of propoxyphene.	3.58	2	0	1-benzyl-3-(dimethylamino)-2-methyl-1-phenylpropyl propanoate	mu-opioid receptor agonist; opioid analgesic
ketobemidone ketobemidone: structure	2.04	1	0	piperidines
chenodeoxycholic acid Chenodeoxycholic Acid: A bile acid, usually conjugated with either glycine or taurine. It acts as a detergent to solubilize fats for intestinal absorption and is reabsorbed by the small intestine. It is used as cholagogue, a choleretic laxative, and to prevent or dissolve gallstones.. chenodeoxycholic acid : A dihydroxy-5beta-cholanic acid that is (5beta)-cholan-24-oic acid substituted by hydroxy groups at positions 3 and 7 respectively.. chenodeoxycholate : Conjugate base of chenodeoxycholic acid; major species at pH 7.3.	3.56	2	0	bile acid; C24-steroid; dihydroxy-5beta-cholanic acid	human metabolite; mouse metabolite
dihydralazine Dihydralazine: 1,4-Dihydrazinophthalazine. An antihypertensive agent with actions and uses similar to those of HYDRALAZINE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p354)	3.35	1	1	phthalazines
bicuculline Bicuculline: An isoquinoline alkaloid obtained from Dicentra cucullaria and other plants. It is a competitive antagonist for GABA-A receptors.. bicuculline : A benzylisoquinoline alkaloid that is 6-methyl-5,6,7,8-tetrahydro[1,3]dioxolo[4,5-g]isoquinoline which is substituted at the 5-pro-S position by a (6R)-8-oxo-6,8-dihydrofuro[3,4-e][1,3]benzodioxol-6-yl group. A light-sensitive competitive antagonist of GABAA receptors. It was originally identified in 1932 in plant alkaloid extracts and has been isolated from Dicentra cucullaria, Adlumia fungosa, Fumariaceae, and several Corydalis species.	3.36	7	0	benzylisoquinoline alkaloid; isoquinoline alkaloid; isoquinolines	agrochemical; central nervous system stimulant; GABA-gated chloride channel antagonist; GABAA receptor antagonist; neurotoxin
kainic acid Kainic Acid: (2S-(2 alpha,3 beta,4 beta))-2-Carboxy-4-(1-methylethenyl)-3-pyrrolidineacetic acid. Ascaricide obtained from the red alga Digenea simplex. It is a potent excitatory amino acid agonist at some types of excitatory amino acid receptors and has been used to discriminate among receptor types. Like many excitatory amino acid agonists it can cause neurotoxicity and has been used experimentally for that purpose.	2.38	2	0	dicarboxylic acid; L-proline derivative; non-proteinogenic L-alpha-amino acid; pyrrolidinecarboxylic acid	antinematodal drug; excitatory amino acid agonist
sodium carbonate sodium carbonate: used topically for dermatitides, mouthwash, vaginal douche; veterinary use as emergency emetic; RN given refers to carbonic acid, di-Na salt; structure	3.39	1	1	carbonate salt; organic sodium salt
4-hydroxybutyric acid 4-hydroxybutyric acid: was an entry term to Sodium Oxybate (74-98). 4-hydroxybutyric acid : A 4-hydroxy monocarboxylic acid that is butyric acid in which one of the hydrogens at position 4 is replaced by a hydroxy group.	3.23	1	0	4-hydroxy monocarboxylic acid; hydroxybutyric acid	general anaesthetic; GHB receptor agonist; neurotoxin; sedative
alpha-aminopyridine alpha-aminopyridine: RN given refers to parent cpd; structure in Merck Index, 9th ed, #485. aminopyridine : Compounds containing a pyridine skeleton substituted by one or more amine groups.	1.97	1	0
dihydroergotamine Dihydroergotamine: A 9,10alpha-dihydro derivative of ERGOTAMINE. It is used as a vasoconstrictor, specifically for the therapy of MIGRAINE DISORDERS.. dihydroergotamine : Ergotamine in which a single bond replaces the double bond between positions 9 and 10. A semisynthetic ergot alkaloid with weaker oxytocic and vasoconstrictor properties than ergotamine, it is used (as the methanesulfonic or tartaric acid salts) for the treatment of migraine and orthostatic hypotension.	3.23	1	0	ergot alkaloid; semisynthetic derivative	dopamine agonist; non-narcotic analgesic; serotonergic agonist; sympatholytic agent; vasoconstrictor agent
echothiophate iodide Echothiophate Iodide: A potent, long-acting cholinesterase inhibitor used as a miotic in the treatment of glaucoma.. ecothiopate iodide : The iodide salt of ecothiopate. An irreversible acetylcholinesterase inhibitor, it is used an ocular antihypertensive in the treatment of open-angle glaucoma, particularly when other drugs have proved inadequate.	1.95	1	0	iodide salt; quaternary ammonium salt	antiglaucoma drug; EC 3.1.1.8 (cholinesterase) inhibitor; miotic
podophyllotoxin Podophyllum: A genus of poisonous American herbs, family BERBERIDACEAE. The roots yield PODOPHYLLOTOXIN and other pharmacologically important agents. The plant was formerly used as a cholagogue and cathartic. It is different from the European mandrake, MANDRAGORA.	2.02	1	0	furonaphthodioxole; lignan; organic heterotetracyclic compound	antimitotic; antineoplastic agent; keratolytic drug; microtubule-destabilising agent; plant metabolite; tubulin modulator
medroxyprogesterone [no description available]	3.23	1	0	17alpha-hydroxy steroid; 20-oxo steroid; 3-oxo-Delta(4) steroid; tertiary alpha-hydroxy ketone	contraceptive drug; progestin; synthetic oral contraceptive
luminol Luminol: 5-Amino-2,3-dihydro-1,4-phthalazinedione. Substance that emits light on oxidation. It is used in chemical determinations.	1.98	1	0
dimenhydrinate gravinol: has antioxidant and ant-inflammatory activities; structure in first source	3.23	1	0	diarylmethane
chlormethiazole Chlormethiazole: A sedative and anticonvulsant often used in the treatment of alcohol withdrawal. Chlormethiazole has also been proposed as a neuroprotective agent. The mechanism of its therapeutic activity is not entirely clear, but it does potentiate GAMMA-AMINOBUTYRIC ACID receptors response and it may also affect glycine receptors.	2.65	3	0	thiazoles
methamphetamine Methamphetamine: A central nervous system stimulant and sympathomimetic with actions and uses similar to DEXTROAMPHETAMINE. The smokable form is a drug of abuse and is referred to as crank, crystal, crystal meth, ice, and speed.. methamphetamine : A member of the class of amphetamines in which the amino group of (S)-amphetamine carries a methyl substituent.	3.58	2	0	amphetamines; secondary amine	central nervous system stimulant; environmental contaminant; neurotoxin; psychotropic drug; xenobiotic
levocarnitine (R)-carnitine : The (R)-enantiomer of carnitine.	3.56	2	0	carnitine	antilipemic drug; nootropic agent; nutraceutical; Saccharomyces cerevisiae metabolite; water-soluble vitamin (role)
sulfanilylurea sulfanilylurea: antimicrobial agent; structure	3.23	1	0	benzenes; sulfonamide
lithium carbonate Lithium Carbonate: A lithium salt, classified as a mood-stabilizing agent. Lithium ion alters the metabolism of BIOGENIC MONOAMINES in the CENTRAL NERVOUS SYSTEM, and affects multiple neurotransmission systems.	2.04	1	0	carbonate salt; lithium salt	antimanic drug
phenoperidine Phenoperidine: A narcotic analgesic partly metabolized to meperidine in the liver. It is similar to morphine in action and used for neuroleptanalgesia, usually with droperidol.	4.24	4	1	piperidines
lactulose [no description available]	3.23	1	0	glycosylfructose	gastrointestinal drug; laxative
megestrol acetate [no description available]	2.02	1	0	20-oxo steroid; 3-oxo-Delta(4) steroid; acetate ester; steroid ester	antineoplastic agent; appetite enhancer; contraceptive drug; progestin; synthetic oral contraceptive
glycopyrrolate Glycopyrrolate: A muscarinic antagonist used as an antispasmodic, in some disorders of the gastrointestinal tract, and to reduce salivation with some anesthetics.. glycopyrronium bromide : A quaternary ammonium salt composed of 3-{[cyclopentyl(hydroxy)phenylacetyl]oxy}-1,1-dimethylpyrrolidin-1-ium and bromide ions in a 1:1 ratio.	6	6	5	organic bromide salt; quaternary ammonium salt
pamabrom [no description available]	3.23	1	0
acetylcysteine N-acetyl-L-cysteine : An N-acetyl-L-amino acid that is the N-acetylated derivative of the natural amino acid L-cysteine.	3.84	3	0	acetylcysteine; L-cysteine derivative; N-acetyl-L-amino acid	antidote to paracetamol poisoning; antiinfective agent; antioxidant; antiviral drug; ferroptosis inhibitor; geroprotector; human metabolite; mucolytic; radical scavenger; vulnerary
erythromycin Erythromycin: A bacteriostatic antibiotic macrolide produced by Streptomyces erythreus. Erythromycin A is considered its major active component. In sensitive organisms, it inhibits protein synthesis by binding to 50S ribosomal subunits. This binding process inhibits peptidyl transferase activity and interferes with translocation of amino acids during translation and assembly of proteins.. erythromycin : Any of several wide-spectrum macrolide antibiotics obtained from actinomycete Saccharopolyspora erythraea (formerly known as Streptomyces erythraeus).. erythromycin A : An erythromycin that consists of erythronolide A having 2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl and 3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl residues attahced at positions 4 and 6 respectively.	3.84	3	0	cyclic ketone; erythromycin
2-piperidone 2-piperidone: structure given in first source. piperidin-2-one : A delta-lactam that is piperidine which is substituted by an oxo group at position 2.	1.95	1	0	delta-lactam; piperidones	EC 1.2.1.88 (L-glutamate gamma-semialdehyde dehydrogenase) inhibitor
levonorgestrel Levonorgestrel: A synthetic progestational hormone with actions similar to those of PROGESTERONE and about twice as potent as its racemic or (+-)-isomer (NORGESTREL). It is used for contraception, control of menstrual disorders, and treatment of endometriosis.	3.84	3	0	17beta-hydroxy steroid; 3-oxo-Delta(4) steroid; terminal acetylenic compound	contraceptive drug; female contraceptive drug; progestin; synthetic oral contraceptive
lormetazepam lormetazepam: RN given refers to cpd with specified locant for methyl group; structure given in first source. lormetazepam : A 1,4-benzodiazepinone compound having a methyl substituent at the 1-position, a hydroxy substituent at the 3-position, a 2-chlorophenyl group at the 5-position and a chloro substituent at the 7-position.	2.04	1	0	1,4-benzodiazepinone; organochlorine compound	sedative
vinblastine [no description available]	2.04	1	0
diphenoxylate Diphenoxylate: A MEPERIDINE congener used as an antidiarrheal, usually in combination with ATROPINE. At high doses, it acts like morphine. Its unesterified metabolite difenoxin has similar properties and is used similarly. It has little or no analgesic activity.. diphenoxylate : A piperidinecarboxylate ester that is the ethyl ester of difenoxin.	8.49	2	0	ethyl ester; nitrile; piperidinecarboxylate ester; tertiary amine	antidiarrhoeal drug
estradiol valerate [no description available]	2.02	1	0	steroid ester
ethambutol Ethambutol: An antitubercular agent that inhibits the transfer of mycolic acids into the cell wall of the tubercle bacillus. It may also inhibit the synthesis of spermidine in mycobacteria. The action is usually bactericidal, and the drug can penetrate human cell membranes to exert its lethal effect. (From Smith and Reynard, Textbook of Pharmacology, 1992, p863). ethambutol : An ethylenediamine derivative that is ethane-1,2-diamine in which one hydrogen attached to each of the nitrogens is sutstituted by a 1-hydroxybutan-2-yl group (S,S-configuration). It is a bacteriostatic antimycobacterial drug, effective against Mycobacterium tuberculosis and some other mycobacteria. It is used (as the dihydrochloride salt) in combination with other antituberculous drugs in the treatment of pulmonary and extrapulmonary tuberculosis; resistant strains of M. tuberculosis are readily produced if ethambutol is used alone.	3.84	3	0	ethanolamines; ethylenediamine derivative	antitubercular agent; environmental contaminant; xenobiotic
prothipendyl prothipendyl: a neuroleptic azaphenothiazine; RN given refers to parent cpd	1.94	1	0	aromatic amine; tertiary amino compound
vancomycin Vancomycin: Antibacterial obtained from Streptomyces orientalis. It is a glycopeptide related to RISTOCETIN that inhibits bacterial cell wall assembly and is toxic to kidneys and the inner ear.. vancomycin : A complex glycopeptide from Streptomyces orientalis. It inhibits a specific step in the synthesis of the peptidoglycan layer in the Gram-positive bacteria Staphylococcus aureus and Clostridium difficile.	3.58	2	0	glycopeptide	antibacterial drug; antimicrobial agent; bacterial metabolite
d-alpha tocopherol Vitamin E: A generic descriptor for all TOCOPHEROLS and TOCOTRIENOLS that exhibit ALPHA-TOCOPHEROL activity. By virtue of the phenolic hydrogen on the 2H-1-benzopyran-6-ol nucleus, these compounds exhibit varying degree of antioxidant activity, depending on the site and number of methyl groups and the type of ISOPRENOIDS.. tocopherol : A collective name for a group of closely related lipids that contain a chroman-6-ol nucleus substituted at position 2 by a methyl group and by a saturated hydrocarbon chain consisting of three isoprenoid units. They are designated as alpha-, beta-, gamma-, and delta-tocopherol depending on the number and position of additional methyl substituents on the aromatic ring. Tocopherols occur in vegetable oils and vegetable oil products, almost exclusively with R,R,R configuration. Tocotrienols differ from tocopherols only in having three double bonds in the hydrocarbon chain.. vitamin E : Any member of a group of fat-soluble chromanols that exhibit biological activity against vitamin E deficiency. The vitamers in this class consists of a chroman-6-ol core which is substituted at position 2 by a methyl group and (also at position 2) either a saturated or a triply-unsaturated hydrocarbon chain consisting of three isoprenoid units. The major function of vitamin E is to act as a natural antioxidant by scavenging free radicals and molecular oxygen.. (R,R,R)-alpha-tocopherol : An alpha-tocopherol that has R,R,R configuration. The naturally occurring stereoisomer of alpha-tocopherol, it is found particularly in sunflower and olive oils.	3.23	1	0	alpha-tocopherol	algal metabolite; antiatherogenic agent; anticoagulant; antioxidant; antiviral agent; EC 2.7.11.13 (protein kinase C) inhibitor; immunomodulator; micronutrient; nutraceutical; plant metabolite
propanidid Propanidid: An intravenous anesthetic that has been used for rapid induction of anesthesia and for maintenance of anesthesia of short duration. (From Martindale, The Extra Pharmacopoeia, 30th ed, p918)	11.75	81	11	methoxybenzenes
fluanisone fluanisone: former provisional as haloanisone; structure; RN given refers to parent cpd	2.01	1	0	aromatic ketone
ibufenac ibufenac: used in the treatment of rheumatism; also possesses antipyretic properties; minor descriptor (75-84); on-line & Index Medicus search PHENYLACETATES (75-84); RN given refers to parent cpd. ibufenac : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens is replaced by a 4-isobutylphenyl group. Although it was shown to be effective in treatment of rheumatoid arthritis, the clinical use of ibufenac was discontinued due to hepatotoxic side-effects.	3.23	1	0	monocarboxylic acid	EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; hepatotoxic agent; non-narcotic analgesic; non-steroidal anti-inflammatory drug
metylperon metylperon: RN given refers to parent cpd	2.04	1	0	aromatic ketone
metaxalone [no description available]	3.23	1	0	aromatic ether
spectinomycin Spectinomycin: An antibiotic produced by Streptomyces spectabilis. It is active against gram-negative bacteria and used for the treatment of GONORRHEA.. spectinomycin dihydrochloride : A hydrochloride obtained by combining spectinomycin with two molar equivalents of hydrochloric acid. An antibiotic that is active against gram-negative bacteria and used (as its pentahydrate) to treat gonorrhea.. spectinomycin : A pyranobenzodioxin and antibiotic that is active against gram-negative bacteria and used (as its dihydrochloride pentahydrate) to treat gonorrhea. It is produced by the bacterium Streptomyces spectabilis.	3.58	2	0	cyclic acetal; cyclic hemiketal; cyclic ketone; pyranobenzodioxin; secondary alcohol; secondary amino compound	antibacterial drug; antimicrobial agent; bacterial metabolite
dronabinol Dronabinol: A psychoactive compound extracted from the resin of Cannabis sativa (marihuana, hashish). The isomer delta-9-tetrahydrocannabinol (THC) is considered the most active form, producing characteristic mood and perceptual changes associated with this compound.. Delta(9)-tetrahydrocannabinol : A diterpenoid that is 6a,7,8,10a-tetrahydro-6H-benzo[c]chromene substituted at position 1 by a hydroxy group, positions 6, 6 and 9 by methyl groups and at position 3 by a pentyl group. The principal psychoactive constituent of the cannabis plant, it is used for treatment of anorexia associated with AIDS as well as nausea and vomiting associated with cancer chemotherapy.	4.03	4	0	benzochromene; diterpenoid; phytocannabinoid; polyketide	cannabinoid receptor agonist; epitope; hallucinogen; metabolite; non-narcotic analgesic
amiloride Amiloride: A pyrazine compound inhibiting SODIUM reabsorption through SODIUM CHANNELS in renal EPITHELIAL CELLS. This inhibition creates a negative potential in the luminal membranes of principal cells, located in the distal convoluted tubule and collecting duct. Negative potential reduces secretion of potassium and hydrogen ions. Amiloride is used in conjunction with DIURETICS to spare POTASSIUM loss. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p705). amiloride : A member of the class of pyrazines resulting from the formal monoacylation of guanidine with the carboxy group of 3,5-diamino-6-chloropyrazine-2-carboxylic acid.	3.78	3	0	aromatic amine; guanidines; organochlorine compound; pyrazines	diuretic; sodium channel blocker
pimozide Pimozide: A diphenylbutylpiperidine that is effective as an antipsychotic agent and as an alternative to HALOPERIDOL for the suppression of vocal and motor tics in patients with Tourette syndrome. Although the precise mechanism of action is unknown, blockade of postsynaptic dopamine receptors has been postulated. (From AMA Drug Evaluations Annual, 1994, p403). pimozide : A member of the class of benzimidazoles that is 1,3-dihydro-2H-benzimidazol-2-one in which one of the nitrogens is substituted by a piperidin-4-yl group, which in turn is substituted on the nitrogen by a 4,4-bis(p-fluorophenyl)butyl group.	3.56	2	0	benzimidazoles; heteroarylpiperidine; organofluorine compound	antidyskinesia agent; dopaminergic antagonist; first generation antipsychotic; H1-receptor antagonist; serotonergic antagonist
benperidol Benperidol: A butyrophenone with general properties similar to those of HALOPERIDOL. It has been used in the treatment of aberrant sexual behavior. (From Martindale, The Extra Pharmacopoeia, 30th ed, p567)	5.84	13	2	aromatic ketone
betamethasone valerate Betamethasone Valerate: The 17-valerate derivative of BETAMETHASONE. It has substantial topical anti-inflammatory activity and relatively low systemic anti-inflammatory activity.. betamethasone valerate : A steroid ester that is betamethasone in which the hydroxy group at the 17alpha position has been converted to the corresponding pentanoate ester.	2.02	1	0	11beta-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(1),Delta(4)-steroid; fluorinated steroid; primary alpha-hydroxy ketone; steroid ester	anti-inflammatory drug
aminorex Aminorex: An amphetamine-like anorectic agent. It may cause pulmonary hypertension.	1.98	1	0	benzenes
methylprednisolone hemisuccinate Methylprednisolone Hemisuccinate: A water-soluble ester of METHYLPREDNISOLONE used for cardiac, allergic, and hypoxic emergencies.	2.02	1	0	corticosteroid hormone; hemisuccinate
dexbrompheniramine dexbrompheniramine : The (pharmacologically active) (S)-(+)-enantiomer of brompheniramine. A histamine H1 receptor antagonist, it is used (commonly as its maleate salt) for the symptomatic relief of allergic conditions, including rhinitis and conjunctivitis.	3.23	1	0	brompheniramine	anti-allergic agent; H1-receptor antagonist
chlordesmethyldiazepam [no description available]	2.04	1	0	benzodiazepine
stavudine Stavudine: A dideoxynucleoside analog that inhibits reverse transcriptase and has in vitro activity against HIV.. stavudine : A nucleoside analogue obtained by formal dehydration across positions 2 and 3 of thymidine. An inhibitor of HIV-1 reverse transcriptase	3.84	3	0	dihydrofuran; nucleoside analogue; organic molecular entity	antimetabolite; antiviral agent; EC 2.7.7.49 (RNA-directed DNA polymerase) inhibitor
doxifluridine doxifluridine : A pyrimidine 5'-deoxyribonucleoside that is 5-fluorouridine in which the hydroxy group at the 5' position is replaced by a hydrogen. It is an oral prodrug of the antineoplastic agent 5-fluorouracil. Designed to circumvent the rapid degradation of 5-fluorouracil by dihydropyrimidine dehydrogenase in the gut wall, it is converted into 5-fluorouracil in the presence of pyrimidine nucleoside phosphorylase.	2.04	1	0	organofluorine compound; pyrimidine 5'-deoxyribonucleoside	antimetabolite; antineoplastic agent; prodrug
dicloxacillin Dicloxacillin: One of the PENICILLINS which is resistant to PENICILLINASE.. dicloxacillin : A penicillin that is 6-aminopenicillanic acid in which one of the amino hydrogens is replaced by a 3-(2,6-dichlorophenyl)-5-methyl-1,2-oxazol-4-yl]formyl group.	3.58	2	0	dichlorobenzene; penicillin	antibacterial drug
pronarcon pronarcon: RN given refers to cpd without isomeric designation; structure	1.94	1	0	barbiturates
cyclacillin Cyclacillin: A cyclohexylamido analog of PENICILLANIC ACID.	2.02	1	0	penicillin	antibacterial drug
megestrol Megestrol: A progestational hormone used most commonly as the acetate ester. As the acetate, it is more potent than progesterone both as a progestagen and as an ovulation inhibitor. It has also been used in the palliative treatment of breast cancer.. megestrol : A 3-oxo Delta(4)-steroid that is pregna-4,6-diene-3,20-dione substituted by a methyl group at position 6 and a hydroxy group at position 17.	3.23	1	0	17alpha-hydroxy steroid; 20-oxo steroid; 3-oxo-Delta(4) steroid; tertiary alpha-hydroxy ketone	antineoplastic agent; appetite enhancer; contraceptive drug; progestin; synthetic oral contraceptive
tranylcypromine Tranylcypromine: A propylamine formed from the cyclization of the side chain of amphetamine. This monoamine oxidase inhibitor is effective in the treatment of major depression, dysthymic disorder, and atypical depression. It also is useful in panic and phobic disorders. (From AMA Drug Evaluations Annual, 1994, p311). tranylcypromine : A racemate comprising equal amounts of (1R,2S)- and (1S,2R)-2-phenylcyclopropan-1-amine. An irreversible monoamine oxidase inhibitor that is used as an antidepressant (INN tranylcypromine).. (1R,2S)-tranylcypromine : A 2-phenylcyclopropan-1-amine that is the (1R,2S)-enantiomer of tranylcypromine.	2.02	1	0	2-phenylcyclopropan-1-amine
streptomycin [no description available]	3.58	2	0	antibiotic antifungal drug; antibiotic fungicide; streptomycins	antibacterial drug; antifungal agrochemical; antimicrobial agent; antimicrobial drug; bacterial metabolite; protein synthesis inhibitor
carbonates Carbonates: Salts or ions of the theoretical carbonic acid, containing the radical CO2(3-). Carbonates are readily decomposed by acids. The carbonates of the alkali metals are water-soluble; all others are insoluble. (From Grant & Hackh's Chemical Dictionary, 5th ed). carbonates : Organooxygen compounds that are salts or esters of carbonic acid, H2CO3.	3.39	1	1	carbon oxoanion
cladribine [no description available]	3.84	3	0	organochlorine compound; purine 2'-deoxyribonucleoside	antineoplastic agent; immunosuppressive agent
beclomethasone [no description available]	2.02	1	0	11beta-hydroxy steroid; 17alpha-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(1),Delta(4)-steroid; chlorinated steroid; corticosteroid; glucocorticoid; primary alpha-hydroxy ketone; tertiary alpha-hydroxy ketone	anti-asthmatic drug; anti-inflammatory drug
carbenicillin Carbenicillin: Broad-spectrum semisynthetic penicillin derivative used parenterally. It is susceptible to gastric juice and penicillinase and may damage platelet function.. carbenicillin : A penicillin antibiotic having a 6beta-2-carboxy-2-phenylacetamido side-chain.	3.58	2	0	penicillin allergen; penicillin	antibacterial drug
estradiol enanthate [no description available]	2.02	1	0	steroid ester
floxacillin Floxacillin: Antibiotic analog of CLOXACILLIN.. flucloxacillin : A penicillin compound having a 6beta-[3-(2-chloro-6-fluorophenyl)-5-methyl-1,2-oxazole-4-carboxamido] side-chain.	2.04	1	0	penicillin allergen; penicillin	antibacterial drug
clomacran clomacran: RN given refers to parent cpd; structure	3.23	1	0	acridines
beclomethasone dipropionate beclomethasone dipropionate : A steroid ester comprising beclomethasone having propionyl groups at the 17- and 21-positions.	2.04	1	0	11beta-hydroxy steroid; 20-oxo steroid; 3-oxo-Delta(1),Delta(4)-steroid; chlorinated steroid; corticosteroid; enone; glucocorticoid; propanoate ester; steroid ester	anti-arrhythmia drug; anti-asthmatic drug; anti-inflammatory drug; prodrug
betamethasone-17,21-dipropionate [no description available]	2.02	1	0	11beta-hydroxy steroid; 20-oxo steroid; 3-oxo-Delta(1),Delta(4)-steroid; fluorinated steroid; propanoate ester; steroid ester	antipsoriatic
methenamine hippurate methenamine hippurate: both parts of molecule contribute to its antibacterial action	3.23	1	0	N-acylglycine
olsalazine olsalazine: cpd with 2 salicylate molecules linked together by an azo bond. olsalazine : An azobenzene that consists of two molecules of 4-aminosalicylic acid joined by an azo linkage. A prodrug for mesalazine, an anti-inflammatory drug, it is used (as the disodium salt) in the treatment of inflammatory bowel disease.	3.84	3	0	azobenzenes; dicarboxylic acid	non-steroidal anti-inflammatory drug; prodrug
n-methylaspartate N-Methylaspartate: An amino acid that, as the D-isomer, is the defining agonist for the NMDA receptor subtype of glutamate receptors (RECEPTORS, NMDA).. N-methyl-D-aspartic acid : An aspartic acid derivative having an N-methyl substituent and D-configuration.	2.66	3	0	amino dicarboxylic acid; D-alpha-amino acid; D-aspartic acid derivative; secondary amino compound	neurotransmitter agent
terodiline [no description available]	2.04	1	0	diarylmethane
1-(4-carboxyphenyl)-3,3-dimethyltriazene 1-(4-carboxyphenyl)-3,3-dimethyltriazene: RN given refers to parent cpd	2.04	1	0
tantalum Tantalum: A rare metallic element, atomic number 73, atomic weight 180.948, symbol Ta. It is a noncorrosive and malleable metal that has been used for plates or disks to replace cranial defects, for wire sutures, and for making prosthetic devices.	1.95	1	0	vanadium group element atom
helium Helium: A noble gas with the atomic symbol He, atomic number 2, and atomic weight 4.003. It is a colorless, odorless, tasteless gas that is not combustible and does not support combustion. It was first detected in the sun and is now obtained from natural gas. Medically it is used as a diluent for other gases, being especially useful with oxygen in the treatment of certain cases of respiratory obstruction, and as a vehicle for general anesthetics.	1.99	1	0	monoatomic helium; noble gas atom; s-block element atom	food packaging gas
xenon Xenon: A noble gas with the atomic symbol Xe, atomic number 54, and atomic weight 131.30. It is found in the earth's atmosphere and has been used as an anesthetic.	2.35	2	0	monoatomic xenon; noble gas atom; p-block element atom
zalcitabine Zalcitabine: A dideoxynucleoside compound in which the 3'-hydroxy group on the sugar moiety has been replaced by a hydrogen. This modification prevents the formation of phosphodiester linkages which are needed for the completion of nucleic acid chains. The compound is a potent inhibitor of HIV replication at low concentrations, acting as a chain-terminator of viral DNA by binding to reverse transcriptase. Its principal toxic side effect is axonal degeneration resulting in peripheral neuropathy.. zalcitabine : A pyrimidine 2',3'-dideoxyribonucleoside compound having cytosine as the nucleobase.	2.43	2	0	pyrimidine 2',3'-dideoxyribonucleoside	antimetabolite; antiviral drug; HIV-1 reverse transcriptase inhibitor
magnesium sulfate Magnesium Sulfate: A small colorless crystal used as an anticonvulsant, a cathartic, and an electrolyte replenisher in the treatment of pre-eclampsia and eclampsia. It causes direct inhibition of action potentials in myometrial muscle cells. Excitation and contraction are uncoupled, which decreases the frequency and force of contractions. (From AMA Drug Evaluations Annual, 1992, p1083). magnesium sulfate : A magnesium salt having sulfate as the counterion.	2.05	1	0	magnesium salt; metal sulfate; organic magnesium salt	anaesthetic; analgesic; anti-arrhythmia drug; anticonvulsant; calcium channel blocker; cardiovascular drug; fertilizer; tocolytic agent
metocurine iodide [no description available]	2.04	1	0	aromatic ether
sodium thiosulfate sodium thiosulfate: do not confuse synonym sodium hyposulfite with sodium hyposulfite, synonym for di-Na salt of dithionous acid. sodium thiosulfate : An inorganic sodium salt composed of sodium and thiosulfate ions in a 2:1 ratio.	3.23	1	0	inorganic sodium salt	antidote to cyanide poisoning; antifungal drug; nephroprotective agent
apazone Apazone: An anti-inflammatory agent used in the treatment of rheumatoid arthritis. It also has uricosuric properties and has been used to treat gout.. apazone : A member of the class of benzotriazines that is 1,2-dihydro-1,2,4-benzotriazine bearing a dimethylamino substitutent at position 3 and a methyl substituent at position 7 and in which the nitrogens at positions 1 and 2 are both acylated by a carboxy group of propylmalonic acid.	2.04	1	0	benzotriazines	non-steroidal anti-inflammatory drug; uricosuric drug
tiletamine Tiletamine: Proposed anesthetic with possible anticonvulsant and sedative properties.	3.05	1	0	aralkylamine
etorphine Etorphine: A narcotic analgesic morphinan used as a sedative in veterinary practice.	2.36	2	0
selegiline Selegiline: A selective, irreversible inhibitor of Type B monoamine oxidase that is used for the treatment of newly diagnosed patients with PARKINSON DISEASE, and for the treatment of depressive disorders. The compound without isomeric designation is Deprenyl.	3.84	3	0	selegiline; terminal acetylenic compound	geroprotector
levamisole Levamisole: An antihelminthic drug that has been tried experimentally in rheumatic disorders where it apparently restores the immune response by increasing macrophage chemotaxis and T-lymphocyte function. Paradoxically, this immune enhancement appears to be beneficial in rheumatoid arthritis where dermatitis, leukopenia, and thrombocytopenia, and nausea and vomiting have been reported as side effects. (From Smith and Reynard, Textbook of Pharmacology, 1991, p435-6). levamisole : A 6-phenyl-2,3,5,6-tetrahydroimidazo[2,1-b][1,3]thiazole that has S configuration. It is used (generally as the monohydrochloride salt) to treat parasitic worm infections in pigs, sheep and cattle and was formerly used in humans as an adjuvant to chemotherapy for the treatment of various cancers. It is also widely used as an adulterant to coccaine.	2.02	1	0	6-phenyl-2,3,5,6-tetrahydroimidazo[2,1-b][1,3]thiazole	antinematodal drug; antirheumatic drug; EC 3.1.3.1 (alkaline phosphatase) inhibitor; immunological adjuvant; immunomodulator
clemastine Clemastine: A histamine H1 antagonist used as the hydrogen fumarate in hay fever, rhinitis, allergic skin conditions, and pruritus. It causes drowsiness.. clemastine : 2-[(2R)-1-Methylpyrrolidin-2-yl]ethanol in which the hydrogen of the hydroxy group is substituted by a 1-(4-chlorophenyl)-1-phenylethyl group (R configuration). An antihistamine with antimuscarinic and moderate sedative properties, it is used as its fumarate salt for the symptomatic relief of allergic conditions such as rhinitis, urticaria, conjunctivitis and in pruritic (severe itching) skin conditions.	3.23	1	0	monochlorobenzenes; N-alkylpyrrolidine	anti-allergic agent; antipruritic drug; H1-receptor antagonist; muscarinic antagonist
cephalexin Cephalexin: A semisynthetic cephalosporin antibiotic with antimicrobial activity similar to that of CEPHALORIDINE or CEPHALOTHIN, but somewhat less potent. It is effective against both gram-positive and gram-negative organisms.. cephalexin : A semisynthetic first-generation cephalosporin antibiotic having methyl and beta-(2R)-2-amino-2-phenylacetamido groups at the 3- and 7- of the cephem skeleton, respectively. It is effective against both Gram-negative and Gram-positive organisms, and is used for treatment of infections of the skin, respiratory tract and urinary tract.	3.84	3	0	beta-lactam antibiotic allergen; cephalosporin; semisynthetic derivative	antibacterial drug
isosorbide-5-mononitrate isosorbide-5-mononitrate: for prevention of angina pectoris; structure given in first source; a Russian drug	2.43	2	0	glucitol derivative; nitrate ester	nitric oxide donor; vasodilator agent
fluorides [no description available]	1.95	1	0	halide anion; monoatomic fluorine
hypnorm Hypnorm: contains fentanyl & fluanisone	2	1	0
danazol Danazol: A synthetic steroid with antigonadotropic and anti-estrogenic activities that acts as an anterior pituitary suppressant by inhibiting the pituitary output of gonadotropins. It possesses some androgenic properties. Danazol has been used in the treatment of endometriosis and some benign breast disorders.	3.56	2	0	17beta-hydroxy steroid; terminal acetylenic compound	anti-estrogen; estrogen antagonist; geroprotector
fenclozic acid fenclozic acid: an analgesic & antipyretic with anti-inflammatory properties; minor descriptor (75-86); on-line & INDEX MEDICUS search THIAZOLES (75-86); RN given refers to parent cpd	3.23	1	0
laxagetten 4,4'-diacetoxydiphenylpyridylemethane [no description available]	3.23	1	0
daunorubicin Daunorubicin: A very toxic anthracycline aminoglycoside antineoplastic isolated from Streptomyces peucetius and others, used in treatment of LEUKEMIA and other NEOPLASMS.. anthracycline : Anthracyclines are polyketides that have a tetrahydronaphthacenedione ring structure attached by a glycosidic linkage to the amino sugar daunosamine.. daunorubicin : A natural product found in Actinomadura roseola.	3.56	2	0	aminoglycoside antibiotic; anthracycline; p-quinones; tetracenequinones	antineoplastic agent; bacterial metabolite
cephapirin Cephapirin: Cephalosporin antibiotic, partly plasma-bound, that is effective against gram-negative and gram-positive organisms.. cephapirin : A cephalosporin with acetoxymethyl and 2(pyridin-4-ylsulfanyl)acetamido substituents at positions 3 and 7, respectively, of the cephem skeleton. It is used (as its sodium salt) as an antibiotic, being effective against gram-negative and gram-positive organisms.	2.43	2	0	cephalosporin	antibacterial drug
fludarabine phosphate fludarabine phosphate: structure given in first source. fludarabine phosphate : A purine arabinonucleoside monophosphate having 2-fluoroadenine as the nucleobase. A prodrug, it is rapidly dephosphorylated to 2-fluoro-ara-A and then phosphorylated intracellularly by deoxycytidine kinase to the active triphosphate, 2-fluoro-ara-ATP. Once incorporated into DNA, 2-fluoro-ara-ATP functions as a DNA chain terminator. It is used for the treatment of adult patients with B-cell chronic lymphocytic leukemia (CLL) who have not responded to, or whose disease has progressed during, treatment with at least one standard alkylating-agent containing regimenas.	3.23	1	0	nucleoside analogue; organofluorine compound; purine arabinonucleoside monophosphate	antimetabolite; antineoplastic agent; antiviral agent; DNA synthesis inhibitor; immunosuppressive agent; prodrug
alclofenac alclofenac: was heading 1975-94 (was see under PHENYLACETATES 1975-90); use PHENYLACETATES to search ALCLOFENAC 1975-94; an anti-inflammatory agent used in the treatment of rheumatoid arthritis; acts also as an analgesic and an antipyretic. alclofenac : An aromatic ether in which the ether oxygen links an allyl group to the 4-position of (3-chlorophenyl)acetic acid.A non-steroidal anti-inflammatory drug, it was withdrawn from the UK market in 1979 due to concerns with its association with vasculitis and rash.	3.23	1	0	aromatic ether; monocarboxylic acid; monochlorobenzenes	drug allergen; non-narcotic analgesic; non-steroidal anti-inflammatory drug
bromocriptine Bromocriptine: A semisynthetic ergotamine alkaloid that is a dopamine D2 agonist. It suppresses prolactin secretion.	3.56	2	0	indole alkaloid	antidyskinesia agent; antiparkinson drug; dopamine agonist; hormone antagonist
phenyl acetate phenyl acetate: The ester formed between phenol and acetic acid. Don't confuse with phenylacetic acid derivatives listed under PHENYLACETATES.. phenyl acetate : An acetate ester obtained by the formal condensation of phenol with acetic acid.	2.63	3	0	benzenes; phenyl acetates
paraldehyde Paraldehyde: A hypnotic and sedative with anticonvulsant effects. However, because of the hazards associated with its administration, its tendency to react with plastic, and the risks associated with its deterioration, it has largely been superseded by other agents. It is still occasionally used to control status epilepticus resistant to conventional treatment. (From Martindale, The Extra Pharmacopoeia, 30th ed, p608-9). paraldehyde : A trioxane that is 1,3,5-trioxane substituted by methyl groups at positions 2, 4 and 6.	2.35	2	0	trioxane	sedative
oxyphenisatin [no description available]	3.23	1	0	indoles
fludrocortisone Fludrocortisone: A synthetic mineralocorticoid with anti-inflammatory activity.	3.23	1	0	11beta-hydroxy steroid; 17alpha-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(4) steroid; C21-steroid; fluorinated steroid; mineralocorticoid	adrenergic agent; anti-inflammatory drug
ursodeoxycholic acid Ursodeoxycholic Acid: An epimer of chenodeoxycholic acid. It is a mammalian bile acid found first in the bear and is apparently either a precursor or a product of chenodeoxycholate. Its administration changes the composition of bile and may dissolve gallstones. It is used as a cholagogue and choleretic.. ursodeoxycholic acid : A bile acid found in the bile of bears (Ursidae) as a conjugate with taurine. Used therapeutically, it prevents the synthesis and absorption of cholesterol and can lead to the dissolution of gallstones.. ursodeoxycholate : A bile acid anion that is the conjugate base of ursodeoxycholic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3.	3.56	2	0	bile acid; C24-steroid; dihydroxy-5beta-cholanic acid	human metabolite; mouse metabolite
pregnanolone Pregnanolone: A pregnane found in the urine of pregnant women and sows. It has anesthetic, hypnotic, and sedative properties.. 3alpha-hydroxy-5beta-pregnan-20-one : The 3alpha-stereoisomer of 3-hydroxy-5beta-pregnan-20-one.	3.98	4	0	3-hydroxy-5beta-pregnan-20-one; 3alpha-hydroxy steroid	human metabolite; intravenous anaesthetic; sedative
metipranolol Metipranolol: A beta-adrenergic antagonist effective for both beta-1 and beta-2 receptors. It is used as an antiarrhythmic, antihypertensive, and antiglaucoma agent.. metipranolol : 3-(Propan-2-ylamino)propane-1,2-diol in which the hydrogen of the primary hydroxy group is substituted by a 4-acetoxy-2,3,5-trimethylphenoxy group. A non-cardioselective beta-blocker, it is used to lower intra-ocular pressure in the management of open-angle glaucoma.	2.02	1	0	acetate ester; aromatic ether; propanolamine; secondary amino compound	anti-arrhythmia drug; antiglaucoma drug; antihypertensive agent; beta-adrenergic antagonist
halazepam halazepam: structure	2.02	1	0	organic molecular entity
4-methoxyamphetamine 4-methoxyamphetamine: para-methoxy derivative to amphetamine with hallucinogenic properties; minor descriptor (75-86); on line & INDEX MEDICUS search AMPHETAMINES (75-86); RN given refers to parent compound without isomeric designation	1.94	1	0
du-21220 Ritodrine: An adrenergic beta-2 agonist used to control PREMATURE LABOR.. 4-[2-[[1-hydroxy-1-(4-hydroxyphenyl)propan-2-yl]amino]ethyl]phenol : A secondary amino compound that is 4-(2-amino-1-hydroxypropyl)phenol in which one of the hydrogens attached to the nitrogen is replaced by a 2-(4-hydroxyphenyl)ethyl group.	2.43	2	0	benzyl alcohols; polyphenol; secondary alcohol; secondary amino compound
androstane-3,17-diol Androstane-3,17-diol: The unspecified form of the steroid, normally a major metabolite of TESTOSTERONE with androgenic activity. It has been implicated as a regulator of gonadotropin secretion.	3.36	1	1	17-hydroxy steroid; 3-hydroxy steroid; androstanoid
glutamic acid Glutamic Acid: A non-essential amino acid naturally occurring in the L-form. Glutamic acid is the most common excitatory neurotransmitter in the CENTRAL NERVOUS SYSTEM.. glutamic acid : An alpha-amino acid that is glutaric acid bearing a single amino substituent at position 2.	2.4	2	0	glutamic acid; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid	Escherichia coli metabolite; ferroptosis inducer; micronutrient; mouse metabolite; neurotransmitter; nutraceutical
dexchlorpheniramine dexchlorpheniramine: RN given refers to parent cpd(S)-isomer	3.23	1	0	chlorphenamine
ribostamycin Ribostamycin: A broad-spectrum antimicrobial isolated from Streptomyces ribosifidicus.. ribostamycin : An amino cyclitol glycoside that is 4,6-diaminocyclohexane-1,2,3-triol having a 2,6-diamino-2,6-dideoxy-alpha-D-glucosyl residue attached at position 1 and a beta-D-ribosyl residue attached at position 2. It is an antibiotic produced by Streptomyces ribosidificus (formerly S. thermoflavus).	2.04	1	0	amino cyclitol glycoside; aminoglycoside antibiotic	antibacterial drug; antimicrobial agent; metabolite
clometacin clometacin: structure	3.23	1	0	N-acylindole
cefazolin Cefazolin: A semisynthetic cephalosporin analog with broad-spectrum antibiotic action due to inhibition of bacterial cell wall synthesis. It attains high serum levels and is excreted quickly via the urine.. cefazolin : A first-generation cephalosporin compound having [(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl and (1H-tetrazol-1-ylacetyl)amino side-groups at positions 3 and 7 respectively.	3.84	3	0	beta-lactam antibiotic allergen; cephalosporin; tetrazoles; thiadiazoles	antibacterial drug
azides Azides: Organic or inorganic compounds that contain the -N3 group.. azide : Any nitrogen molecular entity containing the group -N3.	1.97	1	0	pseudohalide anion	mitochondrial respiratory-chain inhibitor
amoxicillin Amoxicillin: A broad-spectrum semisynthetic antibiotic similar to AMPICILLIN except that its resistance to gastric acid permits higher serum levels with oral administration.. amoxicillin : A penicillin in which the substituent at position 6 of the penam ring is a 2-amino-2-(4-hydroxyphenyl)acetamido group.	3.84	3	0	penicillin allergen; penicillin	antibacterial drug
timolol (S)-timolol (anhydrous) : The (S)-(-) (more active) enantiomer of timolol. A beta-adrenergic antagonist, both the hemihydrate and the maleate salt are used in the mangement of glaucoma, hypertension, angina pectoris and myocardial infarction, and for the prevention of migraine.	4.03	4	0	timolol	anti-arrhythmia drug; antiglaucoma drug; antihypertensive agent; beta-adrenergic antagonist
indoramin Indoramin: An alpha-1 adrenergic antagonist that is commonly used as an antihypertensive agent.	2.04	1	0	tryptamines
oxcarbazepine Oxcarbazepine: A carbamazepine derivative that acts as a voltage-gated sodium channel blocker. It is used for the treatment of PARTIAL SEIZURES with or without secondary generalization. It is also an inducer of CYTOCHROME P-450 CYP3A4.. oxcarbazepine : A dibenzoazepine derivative, having a carbamoyl group at the ring nitrogen, substituted with an oxo group at C-4 of the azepeine ring which is also hydrogenated at C-4 and C-5. It is a anticholinergic anticonvulsant and mood stabilizing drug, used primarily in the treatment of epilepsy.	3.23	1	0	cyclic ketone; dibenzoazepine	anticonvulsant; drug allergen
carbidopa carbidopa (anhydrous) : 3-(3,4-Dihydroxyphenyl)propanoic acid in which the hydrogens alpha- to the carboxyl group are substituted by hydrazinyl and methyl groups (S-configuration). Carbidopa is a dopa decarboxylase inhibitor, so prevents conversion of levodopa to dopamine. It has no antiparkinson activity by itself, but is used (commonly as its hydrate) in the management of Parkinson's disease to reduce peripheral adverse effects of levodopa.	3.23	1	0	catechols; hydrazines; monocarboxylic acid	antiparkinson drug; dopaminergic agent; EC 4.1.1.28 (aromatic-L-amino-acid decarboxylase) inhibitor
toloxatone toloxatone: oxazolidinone derivative; psychotropic drug; structure. toloxatone : A racemate consisting of equimolar amounts of (R)- and (S)-toloxatone. It is a reversible monoamine oxidase A inhibitor and antidepressant.. 5-(hydroxymethyl)-3-(3-methylphenyl)-1,3-oxazolidin-2-one : A member of the class of oxazolidinones that is 5-(hydroxymethyl)-1,3-oxazolidin-2-one substituted by a 3-methylphenyl group at position 3.	2.04	1	0	oxazolidinone; primary alcohol; toluenes
moricizine Moricizine: An antiarrhythmia agent used primarily for ventricular rhythm disturbances.. moricizine : A phenothiazine substituted on the nitrogen by a 3-(morpholin-4-yl)propanoyl group, and at position 2 by an (ethoxycarbonyl)amino group.	3.56	2	0	carbamate ester; morpholines; phenothiazines	anti-arrhythmia drug
amineptin amineptin: used in treatment of neuroses with psychoasthenic, anxio-phobic & depressive manifestations; synonym S 1694 refers to HCl; structure. amineptine : A carbocyclic fatty acid that is 5-aminoheptanoic acid in which one of the hydrogens attached to the nitrogen is replaced by a 10,11-dihydro-5H-dibenzo[a,d][7]annulen-5-yl group. A tricyclic antidepressant, it was never approved in the US and was withdrawn from the French market in 1999 due to concerns over abuse, dependence and severe acne.	3.23	1	0	amino acid; carbocyclic fatty acid; carbotricyclic compound; secondary amino compound	antidepressant; dopamine uptake inhibitor
bitolterol bitolterol: RN given refers to parent cpd; structure. bitolterol : The di-4-toluate ester of (+-)-N-tert-butylnoradrenaline (colterol). A pro-drug for colterol, a beta2-adrenergic receptor agonist, bitolterol is used as its methanesulfonate salt for relief of bronchospasm in conditions such as asthma, chronic bronchitis and emphysema.	2.02	1	0	carboxylic ester; diester; ethanolamines; secondary alcohol; secondary amino compound	anti-asthmatic drug; beta-adrenergic agonist; bronchodilator agent; prodrug
zidovudine Zidovudine: A dideoxynucleoside compound in which the 3'-hydroxy group on the sugar moiety has been replaced by an azido group. This modification prevents the formation of phosphodiester linkages which are needed for the completion of nucleic acid chains. The compound is a potent inhibitor of HIV replication, acting as a chain-terminator of viral DNA during reverse transcription. It improves immunologic function, partially reverses the HIV-induced neurological dysfunction, and improves certain other clinical abnormalities associated with AIDS. Its principal toxic effect is dose-dependent suppression of bone marrow, resulting in anemia and leukopenia.. zidovudine : A pyrimidine 2',3'-dideoxyribonucleoside compound having a 3'-azido substituent and thymine as the nucleobase.	3.84	3	0	azide; pyrimidine 2',3'-dideoxyribonucleoside	antimetabolite; antiviral drug; HIV-1 reverse transcriptase inhibitor
zolazepam Zolazepam: A pyrazolodiazepinone with pharmacological actions similar to ANTI-ANXIETY AGENTS. It is commonly used in combination with TILETAMINE to obtain immobilization and anesthesia in animals.	3.05	1	0
pirprofen pirprofen: anti-inflammatory agent used in therapy of rheumatoid arthritis; prostaglandin synthetase inhibitor; more potent than indomethacin; structure	3.23	1	0	pyrroline
sisomicin Sisomicin: Antibiotic produced by Micromonospora inyoensis. It is closely related to gentamicin C1A, one of the components of the gentamicin complex (GENTAMICINS).	2.04	1	0	amino cyclitol glycoside; aminoglycoside antibiotic; beta-L-arabinoside; monosaccharide derivative
amdinocillin Amdinocillin: An amidinopenicillanic acid derivative with broad spectrum antibacterial action.. mecillinam : A penicillin in which the 6beta substituent is [(azepan-1-yl)methylidene]amino; an extended-spectrum penicillin antibiotic that binds specifically to penicillin binding protein 2 (PBP2), and is only considered to be active against Gram-negative bacteria.	2.04	1	0	penicillin	antibacterial drug; antiinfective agent
tobramycin Tobramycin: An aminoglycoside, broad-spectrum antibiotic produced by Streptomyces tenebrarius. It is effective against gram-negative bacteria, especially the PSEUDOMONAS species. It is a 10% component of the antibiotic complex, NEBRAMYCIN, produced by the same species.. tobramycin : A amino cyclitol glycoside that is kanamycin B lacking the 3-hydroxy substituent from the 2,6-diaminoglucose ring.	2.43	2	0	amino cyclitol glycoside	antibacterial agent; antimicrobial agent; toxin
paclitaxel Taxus: Genus of coniferous yew trees or shrubs, several species of which have medicinal uses. Notable is the Pacific yew, Taxus brevifolia, which is used to make the anti-neoplastic drug taxol (PACLITAXEL).	3.84	3	0	taxane diterpenoid; tetracyclic diterpenoid	antineoplastic agent; human metabolite; metabolite; microtubule-stabilising agent
etoposide [no description available]	3.84	3	0	beta-D-glucoside; furonaphthodioxole; organic heterotetracyclic compound	antineoplastic agent; DNA synthesis inhibitor
dobutamine Dobutamine: A catecholamine derivative with specificity for BETA-1 ADRENERGIC RECEPTORS. It is commonly used as a cardiotonic agent after CARDIAC SURGERY and during DOBUTAMINE STRESS ECHOCARDIOGRAPHY.. dobutamine : A catecholamine that is 4-(3-aminobutyl)phenol in which one of the hydrogens attached to the nitrogen is substituted by a 2-(3,4-dihydroxyphenyl)ethyl group. A beta1-adrenergic receptor agonist that has cardiac stimulant action without evoking vasoconstriction or tachycardia, it is used as the hydrochloride to increase the contractility of the heart in the management of acute heart failure.	3.56	2	0	catecholamine; secondary amine	beta-adrenergic agonist; cardiotonic drug; sympathomimetic agent
ticarcillin Ticarcillin: An antibiotic derived from penicillin similar to CARBENICILLIN in action.. ticarcillin : A penicillin compound having a 6beta-[(2R)-2-carboxy-2-thiophen-3-ylacetyl]amino side-group.	2.04	1	0	penicillin allergen; penicillin	antibacterial drug
trimazosin trimazosin: RN given refers to parent cpd; structure	2.04	1	0	N-arylpiperazine
penbutolol Penbutolol: A nonselective beta-blocker used as an antihypertensive and an antianginal agent.	3.56	2	0	ethanolamines
ribavirin Rebetron: Rebetron is tradename	3.84	3	0	1-ribosyltriazole; aromatic amide; monocarboxylic acid amide; primary carboxamide	anticoronaviral agent; antiinfective agent; antimetabolite; antiviral agent; EC 2.7.7.49 (RNA-directed DNA polymerase) inhibitor
adinazolam adinazolam: structure in first source. adinazolam : A triazolo[4,3-a][1,4]benzodiazepine having a dimethylaminomethyl group at the 1-position, a phenyl group at the 6-position and a chloro substituent at the 8-position.	2.04	1	0	triazolobenzodiazepine	anticonvulsant; antidepressant; anxiolytic drug; sedative
amikacin Amikacin: A broad-spectrum antibiotic derived from KANAMYCIN. It is reno- and oto-toxic like the other aminoglycoside antibiotics.. amikacin : An amino cyclitol glycoside that is kanamycin A acylated at the N-1 position by a 4-amino-2-hydroxybutyryl group.	3.58	2	0	alpha-D-glucoside; amino cyclitol glycoside; aminoglycoside; carboxamide	antibacterial drug; antimicrobial agent; nephrotoxin
tolamolol [no description available]	2.04	1	0
cephradine Cephradine: A semi-synthetic cephalosporin antibiotic.. cephradine : A first-generation cephalosporin antibiotic with a methyl substituent at position 3, and a (2R)-2-amino-2-cyclohexa-1,4-dien-1-ylacetamido substituent at position 7, of the cephem skeleton.	3.58	2	0	beta-lactam antibiotic allergen; cephalosporin	antibacterial drug
ticrynafen Ticrynafen: A novel diuretic with uricosuric action. It has been proposed as an antihypertensive agent.. tienilic acid : An aromatic ketone that is 2,3-dichlorophenoxyacetic acid in which the hydrogen at position 4 on the benzene ring is replaced by a thiophenecarbonyl group. A loop diuretic used to treat hypertension, it was withdrawn from the market in 1982 due to links with hepatitis.	3.23	1	0	aromatic ether; aromatic ketone; dichlorobenzene; monocarboxylic acid; thiophenes	antihypertensive agent; hepatotoxic agent; loop diuretic
guanadrel guanadrel: RN given refers to parent cpd; structure. guanadrel : A spiroketal resulting from the formal condensation of the keto group of cyclohexanone with the hydroxy groups of 1-(2,3-dihydroxypropyl)guanidine. A postganglionic adrenergic blocking agent formerly used (generally as the sulfate salt) for the management of hypertension, it has been largely superseded by other drugs less likely to cause orthostatic hypotension (dizzy spells on standing up or stretching).	2.02	1	0	guanidines; spiroketal	adrenergic antagonist; antihypertensive agent
methyldopa Methyldopa: An alpha-2 adrenergic agonist that has both central and peripheral nervous system effects. Its primary clinical use is as an antihypertensive agent.. alpha-methyl-L-dopa : A derivative of L-tyrosine having a methyl group at the alpha-position and an additional hydroxy group at the 3-position on the phenyl ring.	4.01	4	0	L-tyrosine derivative; non-proteinogenic L-alpha-amino acid	alpha-adrenergic agonist; antihypertensive agent; hapten; peripheral nervous system drug; sympatholytic agent
tocainide Tocainide: An antiarrhythmic agent which exerts a potential- and frequency-dependent block of SODIUM CHANNELS.. tocainide : A monocarboxylic acid amide in which 2,6-dimethylphenylaniline and isobutyric acid have combined to form the amide bond; used as a local anaesthetic.	2.43	2	0	monocarboxylic acid amide	anti-arrhythmia drug; local anaesthetic; sodium channel blocker
sulbenicillin Sulbenicillin: Semisynthetic penicillin-type antibiotic.. sulbenicillin : A penicillin antibiotic having a 6beta-[phenyl(sulfo)acetamido] side-chain.	2.04	1	0	penicillin
sq-11725 Nadolol: A non-selective beta-adrenergic antagonist with a long half-life, used in cardiovascular disease to treat arrhythmias, angina pectoris, and hypertension. Nadolol is also used for MIGRAINE DISORDERS and for tremor.. nadolol : Nadolol is a diastereoisomeric mixture consisting of equimolar amounts of the four possible 2,3-cis-isomers of 5-[3-(tert-butylamino)-2-hydroxypropoxy]-1,2,3,4-tetrahydronaphthalene-2,3-diol.	2.43	2	0
diltiazem Diltiazem: A benzothiazepine derivative with vasodilating action due to its antagonism of the actions of CALCIUM ion on membrane functions.. diltiazem : A 5-[2-(dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl acetate in which both stereocentres have S configuration. A calcium-channel blocker and vasodilator, it is used as the hydrochloride in the management of angina pectoris and hypertension.	3.84	3	0	5-[2-(dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl acetate	antihypertensive agent; calcium channel blocker; vasodilator agent
levobunolol Levobunolol: The L-Isomer of bunolol.. levobunolol : A cyclic ketone that is 3,4-dihydronaphthalen-1-one substituted at position 5 by a 3-(tert-butylamino)-2-hydroxypropoxy group (the S-enantiomer). A non-selective beta-adrenergic antagonist used (as its hydrochloride salt) for treatment of glaucoma.	2.02	1	0	aromatic ether; cyclic ketone; propanolamine	antiglaucoma drug; beta-adrenergic antagonist
vecuronium bromide Vecuronium Bromide: Monoquaternary homolog of PANCURONIUM. A non-depolarizing neuromuscular blocking agent with shorter duration of action than pancuronium. Its lack of significant cardiovascular effects and lack of dependence on good kidney function for elimination as well as its short duration of action and easy reversibility provide advantages over, or alternatives to, other established neuromuscular blocking agents.. vecuronium bromide : The organic bromide salt of a 5alpha-androstane compound having 3alpha-acetoxy-, 17beta-acetoxy-, 2beta-piperidinino- and 16beta-N-methylpiperidinium substituents.	2.91	4	0	organic bromide salt; quaternary ammonium salt	muscle relaxant; neuromuscular agent; nicotinic antagonist
vecuronium vecuronium : A 5alpha-androstane compound having 3alpha-acetoxy-, 17beta-acetoxy-, 2beta-piperidino- and 16beta-N-methylpiperidinium substituents.	3.23	1	0	acetate ester; androstane; quaternary ammonium ion	drug allergen; muscle relaxant; neuromuscular agent; nicotinic antagonist
benoxaprofen benoxaprofen: RN given refers to parent cpd; structure. benoxaprofen : A monocarboxylic acid that is propionic acid substituted at position 2 by a 2-(4-chlorophenyl)-1,3-benzoxazol-5-yl group. It was used as a non-steroidal anti-inflammatory drug until 1982 when it was withdrawn from the market due to adverse side-effects including liver necrosis, photosensitivity, and carcinogenicity in animals.	3.23	1	0	1,3-benzoxazoles; monocarboxylic acid; monochlorobenzenes	antipsoriatic; antipyretic; EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor; hepatotoxic agent; nephrotoxin; non-narcotic analgesic; non-steroidal anti-inflammatory drug; protein kinase C agonist
permethrin hemoglobin Atlanta-Coventry: Leu replaced by Pro at beta75 and Leu deleted at beta141	2.02	1	0	cyclopropanecarboxylate ester; cyclopropanes	agrochemical; ectoparasiticide; pyrethroid ester acaricide; pyrethroid ester insecticide; scabicide
exifone [no description available]	3.23	1	0	benzophenones
mefloquine (-)-(11S,2'R)-erythro-mefloquine : An optically active form of [2,8-bis(trifluoromethyl)quinolin-4-yl]-(2-piperidyl)methanol having (-)-(11S,2'R)-erythro-configuration. An antimalarial agent, used in racemic form, which acts as a blood schizonticide; its mechanism of action is unknown.	3.23	1	0	[2,8-bis(trifluoromethyl)quinolin-4-yl]-(2-piperidyl)methanol	antimalarial
meptazinol Meptazinol: A narcotic antagonist with analgesic properties. It is used for the control of moderate to severe pain.	2.04	1	0	azepanes
nitazoxanide nitazoxanide: a 5-nitrothiazolyl derivative used for a broad range of intestinal parasitic infections including CRYPTOSPORIDIUM and GIARDIA; it is a redox-active nitrothiazolyl-salicylamide prodrug	3.23	1	0	benzamides; carboxylic ester
sufentanil Sufentanil: An opioid analgesic that is used as an adjunct in anesthesia, in balanced anesthesia, and as a primary anesthetic agent.. sufentanil : An anilide resulting from the formal condensation of the aryl amino group of 4-(methoxymethyl)-N-phenyl-1-[2-(2-thienyl)ethyl]piperidin-4-amine with propanoic acid.	5.61	5	1	anilide; ether; piperidines; thiophenes	anaesthesia adjuvant; intravenous anaesthetic; mu-opioid receptor agonist; opioid analgesic
acarbose [no description available]	3.23	1	0	tetrasaccharide derivative	EC 3.2.1.1 (alpha-amylase) inhibitor; EC 3.2.1.20 (alpha-glucosidase) inhibitor; geroprotector; hypoglycemic agent
torsemide Torsemide: A pyridine and sulfonamide derivative that acts as a sodium-potassium chloride symporter inhibitor (loop diuretic). It is used for the treatment of EDEMA associated with CONGESTIVE HEART FAILURE; CHRONIC RENAL INSUFFICIENCY; and LIVER DISEASES. It is also used for the management of HYPERTENSION.. torasemide : An N-sulfonylurea obtained by formal condensation of [(3-methylphenyl)amino]pyridine-3-sulfonic acid with the free amino group of N-isopropylurea. It is a potent loop diuretic used for the treatment of hypertension and edema in patients with congestive heart failure.	3.84	3	0	aminopyridine; N-sulfonylurea; secondary amino compound	antihypertensive agent; loop diuretic
medroxalol medroxalol: RN given refers to parent cpd without isomeric designation	2.04	1	0	salicylamides
epirubicin Epirubicin: An anthracycline which is the 4'-epi-isomer of doxorubicin. The compound exerts its antitumor effects by interference with the synthesis and function of DNA.	3.58	2	0	aminoglycoside; anthracycline antibiotic; anthracycline; deoxy hexoside; monosaccharide derivative; p-quinones; primary alpha-hydroxy ketone; tertiary alpha-hydroxy ketone	antimicrobial agent; antineoplastic agent; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor
cefmetazole Cefmetazole: A semisynthetic cephamycin antibiotic with a broad spectrum of activity against both gram-positive and gram-negative microorganisms. It has a high rate of efficacy in many types of infection and to date no severe side effects have been noted.. cefmetazole : A second-generation cephalosporin antibiotic having N(1)-methyltetrazol-5-ylthiomethyl, {[(cyanomethyl)sulfanyl]acetyl}amino and methoxy side-groups at positions 3, 7beta and 7alpha respectively of the parent cephem bicyclic structure.	2.43	2	0	cephalosporin	antibacterial drug
desflurane Desflurane: A fluorinated ether that is used as a volatile anesthetic for maintenance of general anesthesia.	4.08	3	1	organofluorine compound	inhalation anaesthetic
lorcainide [no description available]	2.04	1	0	acetamides
idarubicin Idarubicin: An orally administered anthracycline antineoplastic. The compound has shown activity against BREAST NEOPLASMS; LYMPHOMA; and LEUKEMIA.	3.84	3	0	anthracycline antibiotic; deoxy hexoside; monosaccharide derivative
propiconazole Orbit: Bony cavity that holds the eyeball and its associated tissues and appendages.	3.78	2	1	conazole fungicide; cyclic ketal; dichlorobenzene; triazole fungicide; triazoles	antifungal agrochemical; EC 1.14.13.70 (sterol 14alpha-demethylase) inhibitor; environmental contaminant; xenobiotic
ceforanide ceforanide: RN given refers to (6R-(trans))-isomer. ceforanide : A second-generation cephalosporin antibiotic with {[1-(carboxymethyl)-1H-tetrazol-5-yl]sulfanyl}methyl and 2-(aminomethyl)phenylacetamido groups at positions 3 and 7, respectively, of the cephem skeleton. It is effective against many coliforms, including Escherichia coli, Klebsiella, Enterobacter and Proteus, and most strains of Salmonella, Shigella, Hemophilus, Citrobacter and Arizona species.	2.04	1	0	cephalosporin	antibacterial drug
cefonicid Cefonicid: A second-generation cephalosporin administered intravenously or intramuscularly. Its bactericidal action results from inhibition of cell wall synthesis. It is used for urinary tract infections, lower respiratory tract infections, and soft tissue and bone infections.. cefonicid : A cephalosporin bearing {[1-(sulfomethyl)-1H-tetrazol-5-yl]sulfanyl}methyl and (R)-2-hydroxy-2-phenylacetamido groups at positions 3 and 7, respectively, of the cephem skeleton.	2.02	1	0	cephalosporin	antibacterial drug
piperacillin Piperacillin: Semisynthetic, broad-spectrum, AMPICILLIN derived ureidopenicillin antibiotic proposed for PSEUDOMONAS infections. It is also used in combination with other antibiotics.. piperacillin : A penicillin in which the substituent at position 6 of the penam ring is a 2-[(4-ethyl-2,3-dioxopiperazin-1-yl)carboxamido]-2-phenylacetamido group.	3.84	3	0	penicillin allergen; penicillin	antibacterial drug
paroxetine Paroxetine: A serotonin uptake inhibitor that is effective in the treatment of depression.. paroxetine : A benzodioxole that consists of piperidine bearing 1,3-benzodioxol-5-yloxy)methyl and 4-fluorophenyl substituents at positions 3 and 4 respectively; the (3S,4R)-diastereomer. Highly potent and selective 5-HT uptake inhibitor that binds with high affinity to the serotonin transporter (Ki = 0.05 nM). Ki values are 1.1, 350 and 1100 nM for inhibition of [3H]-5-HT, [3H]-l-NA and [3H]-DA uptake respectively. Displays minimal affinity for alpha1-, alpha2- or beta-adrenoceptors, 5-HT2A, 5-HT1A, D2 or H1 receptors at concentrations below 1000 nM, however displays weak affinity for muscarinic ACh receptors (Ki = 42 nM). Antidepressant and anxiolytic in vivo.	9.04	4	0	aromatic ether; benzodioxoles; organofluorine compound; piperidines	antidepressant; anxiolytic drug; hepatotoxic agent; P450 inhibitor; serotonin uptake inhibitor
captopril Captopril: A potent and specific inhibitor of PEPTIDYL-DIPEPTIDASE A. It blocks the conversion of ANGIOTENSIN I to ANGIOTENSIN II, a vasoconstrictor and important regulator of arterial blood pressure. Captopril acts to suppress the RENIN-ANGIOTENSIN SYSTEM and inhibits pressure responses to exogenous angiotensin.. captopril : A L-proline derivative in which L-proline is substituted on nitrogen with a (2S)-2-methyl-3-sulfanylpropanoyl group. It is used as an anti-hypertensive ACE inhibitor drug.	4.03	4	0	alkanethiol; L-proline derivative; N-acylpyrrolidine; pyrrolidinemonocarboxylic acid	antihypertensive agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
cefoperazone Cefoperazone: Semisynthetic broad-spectrum cephalosporin with a tetrazolyl moiety that is resistant to beta-lactamase. It may be used to treat Pseudomonas infections.. cefoperazone : A semi-synthetic parenteral cephalosporin with a tetrazolyl moiety that confers beta-lactamase resistance.	3.84	3	0	cephalosporin	antibacterial drug
lodoxamide [no description available]	2.02	1	0	organonitrogen compound; organooxygen compound
atracurium Atracurium: A non-depolarizing neuromuscular blocking agent with short duration of action. Its lack of significant cardiovascular effects and its lack of dependence on good kidney function for elimination provide clinical advantage over alternate non-depolarizing neuromuscular blocking agents.. atracurium : A diester compound consisting of pentane-1,5-diol with both hydroxyls bearing 3-[1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-3,4-dihydroisoquinolinium-2(1H)-yl]propanoyl groups.	6.11	5	1	diester; quaternary ammonium ion	muscle relaxant; nicotinic antagonist
butoconazole butoconazole: RN given refers to parent cpd; structure. butoconazole : A member of the class of imidazoles that is 1H-imidazole in which the hydrogen attached to the nitrogen is substituted by a 4-(4-chlorophenyl)-2-[(2,6-dichlorophenyl)sulfanyl]butyl group. An antifungal agent, it is used as its nitrate salt in gynaecology for treatment of vulvovaginal infections caused by Candida species, particularly Candida albicans.	2.02	1	0	aryl sulfide; conazole antifungal drug; dichlorobenzene; imidazole antifungal drug; imidazoles; monochlorobenzenes
moxalactam Moxalactam: Broad- spectrum beta-lactam antibiotic similar in structure to the CEPHALOSPORINS except for the substitution of an oxaazabicyclo moiety for the thiaazabicyclo moiety of certain CEPHALOSPORINS. It has been proposed especially for the meningitides because it passes the blood-brain barrier and for anaerobic infections.. moxalactam : A broad-spectrum oxacephem antibiotic in which the oxazine ring is substituted with a tetrazolylthiomethyl group and the azetidinone ring carries methoxy and 2-carboxy-2-(4-hydroxyphenyl)acetamido substituents.	2.04	1	0	cephalosporin; oxacephem	antibacterial drug
endralazine BQ 22-708: RN given refers to parent cpd	2.04	1	0	benzamides
naftifine naftifine: allylamine der; RN given refers to unlabeled parent cpd. naftifine : A tertiary amine in which the nitrogen is substituted by methyl, alpha-naphthylmethyl, and (1E)-cinnamyl groups. It is used (usually as its hydrochloride salt) for the treatment of fungal skin infections.	2.02	1	0	allylamine antifungal drug; naphthalenes; tertiary amine	EC 1.14.13.132 (squalene monooxygenase) inhibitor; sterol biosynthesis inhibitor
pergolide Pergolide: A long-acting dopamine agonist which has been used to treat PARKINSON DISEASE and HYPERPROLACTINEMIA but withdrawn from some markets due to potential for HEART VALVE DISEASES.. pergolide : A diamine that is ergoline in which the beta-hydrogen at position 8 is replaced by a (methylthio)methyl group and the hydrogen attached to the piperidine nitrogen (position 6) is replaced by a propyl group. A dopamine D2 receptor agonist which also has D1 and D2 agonist properties, it is used as the mesylate salt in the management of Parkinson's disease, although it was withdrawn from the U.S. and Canadian markets in 2007 due to an increased risk of cardiac valve dysfunction.	3.56	2	0	diamine; methyl sulfide; organic heterotetracyclic compound	antiparkinson drug; dopamine agonist
colforsin Colforsin: Potent activator of the adenylate cyclase system and the biosynthesis of cyclic AMP. From the plant COLEUS FORSKOHLII. Has antihypertensive, positive inotropic, platelet aggregation inhibitory, and smooth muscle relaxant activities; also lowers intraocular pressure and promotes release of hormones from the pituitary gland.	1.96	1	0	acetate ester; cyclic ketone; labdane diterpenoid; organic heterotricyclic compound; tertiary alpha-hydroxy ketone; triol	adenylate cyclase agonist; anti-HIV agent; antihypertensive agent; plant metabolite; platelet aggregation inhibitor; protein kinase A agonist
cefadroxil anhydrous Cefadroxil: Long-acting, broad-spectrum, water-soluble, CEPHALEXIN derivative.. cefadroxil : A cephalosporin bearing methyl and (2R)-2-amino-2-(4-hydroxyphenyl)acetamido groups at positions 3 and 7, respectively, of the cephem skeleton.	3.84	3	0	cephalosporin	antibacterial drug
encainide Encainide: One of the ANTI-ARRHYTHMIA AGENTS, it blocks VOLTAGE-GATED SODIUM CHANNELS and slows conduction within the His-Purkinje system and MYOCARDIUM.. encainide : 4-Methoxy-N-phenylbenzamide in which the hydrogen at the 2 position of the phenyl group is substituted by a 2-(1-methylpiperidin-2-yl)ethyl group. A class Ic antiarrhythmic, the hydrochloride was used for the treatment of severe or life-threatening ventricular arrhythmias, but it was associated with increased death rates in patients who had asymptomatic heart rhythm abnormalities after a recent heart attack and was withdrawn from the market.	2.43	2	0	benzamides; piperidines	anti-arrhythmia drug; sodium channel blocker
pipecuronium Pipecuronium: A piperazinyl androstane derivative which is a non-depolarizing neuromuscular blocking agent (NEUROMUSCULAR NONDEPOLARIZING AGENTS). It is used as a muscle relaxant during ANESTHESIA and surgical procedures.	3.36	1	1	steroid ester
nedocromil Nedocromil: A pyranoquinolone derivative that inhibits activation of inflammatory cells which are associated with ASTHMA, including EOSINOPHILS; NEUTROPHILS; MACROPHAGES; MAST CELLS; MONOCYTES; AND PLATELETS.	2.02	1	0	dicarboxylic acid; organic heterotricyclic compound	anti-allergic agent; anti-asthmatic drug; non-steroidal anti-inflammatory drug
fialuridine [no description available]	3.23	1	0
cefaclor anhydrous Cefaclor: Semisynthetic, broad-spectrum antibiotic derivative of CEPHALEXIN.. cefaclor : A cephalosporin bearing chloro and (R)-2-amino-2-phenylacetamido groups at positions 3 and 7, respectively, of the cephem skeleton.	3.56	2	0	cephalosporin	antibacterial drug; drug allergen
pefloxacin Pefloxacin: A synthetic broad-spectrum fluoroquinolone antibacterial agent active against most gram-negative and gram-positive bacteria.. pefloxacin : A quinolone that is 4-oxo-1,4-dihydroquinoline which is substituted at positions 1, 3, 6 and 7 by ethyl, carboxy, fluorine, and 4-methylpiperazin-1-yl groups, respectively.	2.04	1	0	fluoroquinolone antibiotic; monocarboxylic acid; N-alkylpiperazine; N-arylpiperazine; quinolone antibiotic; quinolone	antibacterial drug; antiinfective agent; DNA synthesis inhibitor
alfentanil Alfentanil: A short-acting opioid anesthetic and analgesic derivative of FENTANYL. It produces an early peak analgesic effect and fast recovery of consciousness. Alfentanil is effective as an anesthetic during surgery, for supplementation of analgesia during surgical procedures, and as an analgesic for critically ill patients.. alfentanil : A member of the class of piperidines that is piperidine having a 2-(4-ethyl-5-oxo-4,5-dihydro-1H-tetrazol-1-yl)ethyl group at the 1-position as well as N-phenylpropanamido- and methoxymethyl groups at the 4-position.	10.77	40	21	monocarboxylic acid amide; piperidines	central nervous system depressant; intravenous anaesthetic; mu-opioid receptor agonist; opioid analgesic; peripheral nervous system drug
fomesafen fomesafen: a protoporphyrinogen oxidase-inhibiting herbicide. fomesafen : An N-sulfonylcarboxamide that is N-(methylsulfonyl)benzamide in which the phenyl ring is substituted by a nitro group at position 2 and a 2-chloro-4-(trifluoromethyl)phenoxy group at position 5. A protoporphyrinogen oxidase inhibitor, it was specially developed for use (generally as the corresponding sodium salt, fomesafen-sodium) for post-emergence control of broad-leaf weeds in soya.	6.61	20	1	aromatic ether; C-nitro compound; monochlorobenzenes; N-sulfonylcarboxamide; organofluorine compound; phenols	agrochemical; EC 1.3.3.4 (protoporphyrinogen oxidase) inhibitor; herbicide
miglustat miglustat: a glucosylceramide synthase inhibitor. miglustat : A hydroxypiperidine that is deoxynojirimycin in which the amino hydrogen is replaced by a butyl group.	3.23	1	0	piperidines; tertiary amino compound	anti-HIV agent; EC 2.4.1.80 (ceramide glucosyltransferase) inhibitor
haloperidol decanoate [no description available]	3.23	1	0	organic molecular entity
cefotetan Cefotetan: A semisynthetic cephamycin antibiotic that is administered intravenously or intramuscularly. The drug is highly resistant to a broad spectrum of beta-lactamases and is active against a wide range of both aerobic and anaerobic gram-positive and gram-negative microorganisms.. cefotetan : A semi-synthetic second-generation cephamycin antibiotic with [(1-methyl-1H-tetrazol-5-yl)sulfanyl]methyl, methoxy and {[4-(2-amino-1-carboxy-2-oxoethylidene)-1,3-dithietan-2-yl]carbonyl}amino groups at the 3, 7alpha, and 7beta positions, respectively, of the cephem skeleton. It is resistant to a wide range of beta-lactamases and is active against a broad spectrum of aerobic and anaerobic Gram-positive and Gram-negative microorganisms.	3.84	3	0
recainam recainam: structure given in first source	2.04	1	0
lovastatin Lovastatin: A fungal metabolite isolated from cultures of Aspergillus terreus. The compound is a potent anticholesteremic agent. It inhibits 3-hydroxy-3-methylglutaryl coenzyme A reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES), which is the rate-limiting enzyme in cholesterol biosynthesis. It also stimulates the production of low-density lipoprotein receptors in the liver.. lovastatin : A fatty acid ester that is mevastatin carrying an additional methyl group on the carbobicyclic skeleton. It is used in as an anticholesteremic drug and has been found in fungal species such as Aspergillus terreus and Pleurotus ostreatus (oyster mushroom).	3.84	3	0	delta-lactone; fatty acid ester; hexahydronaphthalenes; polyketide; statin (naturally occurring)	anticholesteremic drug; antineoplastic agent; Aspergillus metabolite; prodrug
flupirtine flupirtine: RN given refers to parent cpd without isomeric designation	2.04	1	0	aminopyridine
tolrestat tolrestat: RN & structure given in first source	3.23	1	0	naphthalenes	EC 1.1.1.21 (aldehyde reductase) inhibitor
enoximone Enoximone: A selective phosphodiesterase inhibitor with vasodilating and positive inotropic activity that does not cause changes in myocardial oxygen consumption. It is used in patients with CONGESTIVE HEART FAILURE.	2.04	1	0	aromatic ketone
levocabastine levocabastine: for the temporary relief of the signs and symptoms of seasonal allergic conjunctivitis	2.02	1	0	piperidines
simvastatin Simvastatin: A derivative of LOVASTATIN and potent competitive inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES), which is the rate-limiting enzyme in cholesterol biosynthesis. It may also interfere with steroid hormone production. Due to the induction of hepatic LDL RECEPTORS, it increases breakdown of LDL CHOLESTEROL.. simvastatin : A member of the class of hexahydronaphthalenes that is lovastatin in which the 2-methylbutyrate ester moiety has been replaced by a 2,2-dimethylbutyrate ester group. It is used as a cholesterol-lowering and anti-cardiovascular disease drug.	3.56	2	0	delta-lactone; fatty acid ester; hexahydronaphthalenes; statin (semi-synthetic)	EC 1.1.1.34/EC 1.1.1.88 (hydroxymethylglutaryl-CoA reductase) inhibitor; EC 3.4.24.83 (anthrax lethal factor endopeptidase) inhibitor; ferroptosis inducer; geroprotector; prodrug
idazoxan Idazoxan: A benzodioxane-linked imidazole that has alpha-2 adrenoceptor antagonist activity.. idazoxan : A benzodioxine that is 2,3-dihydro-1,4-benzodioxine in which one of the hydrogens at position 2 has been replaced by a 4,5-dihydro-1H-imidazol-2-yl group.	2.04	1	0	benzodioxine; imidazolines	alpha-adrenergic antagonist
remoxipride Remoxipride: An antipsychotic agent that is specific for dopamine D2 receptors. It has been shown to be effective in the treatment of schizophrenia.	2.04	1	0	dimethoxybenzene
balsalazide balsalazide: a mesalamine 5-aminosalicylate prodrug; 99% of ingested drug remains intact through the stomach and is delivered to and activated in the colon; used for inflammatory bowel disease, ulcerative colitis and radiation-induced proctosigmoiditis but avoided in patients with known hypersensitivity reaction to salicylates or mesalamine; structure in first source. balsalazide : A monohydroxybenzoic acid consisting of 5-aminosalicylic acid (mesalazine) linked to 4-aminobenzoyl-beta-alanine via an azo bond.	3.23	1	0
pravastatin Pravastatin: An antilipemic fungal metabolite isolated from cultures of Nocardia autotrophica. It acts as a competitive inhibitor of HMG CoA reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES).. pravastatin : A carboxylic ester resulting from the formal condensation of (S)-2-methylbutyric acid with the hydroxy group adjacent to the ring junction of (3R,5R)-7-[(1S,2S,6S,8S,8aR)-6,8-dihydroxy-2-methyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]-3,5-dihydroxyheptanoic acid. Derived from microbial transformation of mevastatin, pravastatin is a reversible inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA). The sodium salt is used for lowering cholesterol and preventing cardiovascular disease. It is one of the lower potency statins, but has the advantage of fewer side effects compared with lovastatin and simvastatin.	3.84	3	0	3-hydroxy carboxylic acid; carbobicyclic compound; carboxylic ester; hydroxy monocarboxylic acid; secondary alcohol; statin (semi-synthetic)	anticholesteremic drug; environmental contaminant; metabolite; xenobiotic
cabergoline Cabergoline: An ergoline derivative and dopamine D2-agonist that inhibits PROLACTIN secretion. It is used in the management of HYPERPROLACTINEMIA, and to suppress lactation following childbirth for medical reasons. Cabergoline is also used in the management of PARKINSON DISEASE.. cabergoline : An N-acylurea that is (8R)-ergoline-8-carboxamide in which the hydrogen attached to the piperidine nitrogen (position 6) is substituted by an allyl group and the hydrogens attached to the carboxamide nitrogen are substituted by a 3-(dimethylamino)propyl group and an N-ethylcarbamoyl group. A dopamine D2 receptor agonist, cabergoline is used in the management of Parkinson's disease and of disorders associated with hyperprolactinaemia.	3.56	2	0	N-acylurea	antineoplastic agent; antiparkinson drug; dopamine agonist
bambuterol bambuterol: selective inhibitor of butyrylcholinesterase & acetylcholinesterase. bambuterol : A carbamate ester that is terbutaline in which both of the phenolic hydroxy groups have been protected as the corresponding N,N-dimethylcarbamates. A long acting beta-adrenoceptor agonist used in the treatment of asthma, it is a prodrug for terbutaline.	2.04	1	0	carbamate ester; phenylethanolamines	anti-asthmatic drug; beta-adrenergic agonist; bronchodilator agent; EC 3.1.1.7 (acetylcholinesterase) inhibitor; prodrug; sympathomimetic agent; tocolytic agent
atomoxetine atomoxetine : A secondary amino compound having methyl and 3-(2-methylphenoxy)-3-phenylpropan-1-yl substituents.	3.58	2	0	aromatic ether; secondary amino compound; toluenes	adrenergic uptake inhibitor; antidepressant; environmental contaminant; xenobiotic
quinapril Quinapril: A tetrahydroisoquinoline derivative and ANGIOTENSIN CONVERTING ENZYME inhibitor that is used in the treatment of HYPERTENSION and HEART FAILURE.. quinapril : A member of the class of isoquinolines that is (3S)-2-L-alanyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid in which the alpha-amino group of the alanyl residue has been substituted by a 1-ethoxycarbonyl-4-phenylbutan-2-yl group (the all-S isomer). A prodrug for quinaprilat (by hydrolysis of the ethyl ester to the corresponding carboxylic acid), it is used as an angiotensin-converting enzyme inhibitor (ACE inhibitor) used (generally as the hydrochloride salt) for the treatment of hypertension and congestive heart failure.	3.56	2	0	dicarboxylic acid monoester; ethyl ester; isoquinolines; tertiary carboxamide	antihypertensive agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor; prodrug
alpidem [no description available]	3.23	1	0	imidazoles
mifepristone Mifepristone: A progestational and glucocorticoid hormone antagonist. Its inhibition of progesterone induces bleeding during the luteal phase and in early pregnancy by releasing endogenous prostaglandins from the endometrium or decidua. As a glucocorticoid receptor antagonist, the drug has been used to treat hypercortisolism in patients with nonpituitary CUSHING SYNDROME.	3.23	1	0	3-oxo-Delta(4) steroid; acetylenic compound; tertiary amino compound	abortifacient; contraceptive drug; hormone antagonist; synthetic oral contraceptive
trospectomycin trospectomycin: active against Neisseria gonorrhoeae; RN refers to 2R-(2alpha,4abeta,5abeta,6beta,7beta,8beta,9beta,9alpha,9aalpha,10abeta)-(9CI)-isomer	2.04	1	0	dioxanes
fosphenytoin fosphenytoin: structure given in first & second source	3.56	2	0	imidazolidine-2,4-dione
ranolazine Ranolazine: An acetanilide and piperazine derivative that functions as a SODIUM CHANNEL BLOCKER and prevents the release of enzymes during MYOCARDIAL ISCHEMIA. It is used in the treatment of ANGINA PECTORIS.. N-(2,6-dimethylphenyl)-2-{4-[2-hydroxy-3-(2-methoxyphenoxy)propyl]piperazin-1-yl}acetamide : An aromatic amide obtained by formal condensation of the carboxy group of 2-{4-[2-hydroxy-3-(2-methoxyphenoxy)propyl]piperazin-1-yl}acetic acid with the amino group of 2,6-dimethylaniline.. ranolazine : A racemate comprising equal amounts of (R)- and (S)-ranolazine. Used for treatment of chronic angina.	3.23	1	0	aromatic amide; monocarboxylic acid amide; monomethoxybenzene; N-alkylpiperazine; secondary alcohol
finasteride Finasteride: An orally active 3-OXO-5-ALPHA-STEROID 4-DEHYDROGENASE inhibitor. It is used as a surgical alternative for treatment of benign PROSTATIC HYPERPLASIA.. finasteride : An aza-steroid that is a synthetic drug for the treatment of benign prostatic hyperplasia.	3.84	3	0	3-oxo steroid; aza-steroid; delta-lactam	androgen antagonist; antihyperplasia drug; EC 1.3.1.22 [3-oxo-5alpha-steroid 4-dehydrogenase (NADP(+))] inhibitor
sematilide sematilide: RN refers to HCl; structure given in first source	2.04	1	0
esmolol methyl 3-{4-[2-hydroxy-3-(propan-2-ylamino)propoxy]phenyl}propanoate : A methyl ester that is methyl 3-(4-hydroxyphenyl)propanoate in which the hydrogen attached to the phenolic hydroxy group is substituted by a 2-hydroxy-3-(isopropylamino)propyl group.. esmolol : A racemate comprising equimolar amounts of (R)- and (S)-esmolol. A cardioselective and short-acting beta1 receptor blocker with rapid onset but lacking intrinsic sympathomimetic and membrane-stabilising properties, it is used as the hydrochloride salt in the management of supraventricular arrhythmias, and for the control of hypertension and tachycardia during surgery. While the S enantiomer possesses all of the heart rate control, both enantiomers contribute to lowering blood pressure.	5.44	4	1	aromatic ether; ethanolamines; methyl ester; secondary alcohol; secondary amino compound
clinafloxacin clinafloxacin: structure given in first source; RN given is for monoHCl	2.04	1	0	quinolines
adapalene Adapalene: A naphthalene derivative that has specificity for RETINOIC ACID RECEPTORS. It is used as a DERMATOLOGIC AGENT for the treatment of ACNE.. adapalene : A naphthoic acid that is CD437 in which the phenolic hydroxy group has been converted to its methyl ether.	2.02	1	0	adamantanes; monocarboxylic acid; naphthoic acid	dermatologic drug; EC 2.7.11.22 (cyclin-dependent kinase) inhibitor; non-steroidal anti-inflammatory drug
adefovir adefovir: inhibitor of African swine fever virus. adefovir(1-) : A organophosphonate oxoanion obtained by removal of a proton from the phosphonate group of adefovir, a nucleoside reverse transcriptase inhibitor. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.).. adefovir : A member of the class of phosphonic acids that is methylphosphonic acid in which one of the methyl hydrogens has been replaced by a 2-(6-amino-9H-purin-9-yl)ethoxy group. An inhibitor of HIV-1 reverse transcriptase, the bis(t-butoxycarbonyloxymethyl) ester (dipivoxil ester) prodrug is used to treat chronic hepatitis B viral infection.	3.58	2	0	6-aminopurines; ether; phosphonic acids	antiviral drug; DNA synthesis inhibitor; drug metabolite; HIV-1 reverse transcriptase inhibitor; nephrotoxic agent
loxiglumide loxiglumide: cholecystokinin receptor antagonist; RN refers to (+-)-isomer; structure in first source	2.04	1	0	organic molecular entity
aromasil [no description available]	3.23	1	0	17-oxo steroid; 3-oxo-Delta(1),Delta(4)-steroid	antineoplastic agent; EC 1.14.14.14 (aromatase) inhibitor; environmental contaminant; xenobiotic
sparfloxacin [no description available]	2.43	2	0	fluoroquinolone antibiotic; N-arylpiperazine; quinolinemonocarboxylic acid; quinolone antibiotic; quinolone
zileuton [no description available]	3.56	2	0	1-benzothiophenes; ureas	anti-asthmatic drug; EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor; ferroptosis inhibitor; leukotriene antagonist; non-steroidal anti-inflammatory drug
clopidogrel Clopidogrel: A ticlopidine analog and platelet purinergic P2Y receptor antagonist that inhibits adenosine diphosphate-mediated PLATELET AGGREGATION. It is used to prevent THROMBOEMBOLISM in patients with ARTERIAL OCCLUSIVE DISEASES; MYOCARDIAL INFARCTION; STROKE; or ATRIAL FIBRILLATION.. clopidogrel : A thienopyridine that is 4,5,6,7-tetrahydrothieno[3,2-c]pyridine in which the hydrogen attached to the nitrogen is replaced by an o-chlorobenzyl group, the methylene hydrogen of which is replaced by a methoxycarbonyl group (the S enantiomer). A P2Y12 receptor antagonist, it is used to inhibit blood clots and prevent heart attacks.	3.23	1	0	methyl ester; monochlorobenzenes; thienopyridine	anticoagulant; P2Y12 receptor antagonist; platelet aggregation inhibitor
cidofovir anhydrous Cidofovir: An acyclic nucleoside phosphonate that acts as a competitive inhibitor of viral DNA polymerases. It is used in the treatment of RETINITIS caused by CYTOMEGALOVIRUS INFECTIONS and may also be useful for treating HERPESVIRUS INFECTIONS.. cidofovir anhydrous : Cytosine substituted at the 1 position by a 3-hydroxy-2-(phosphonomethoxy)propyl group (S configuration). A nucleoside analogue, it is an injectable antiviral used for the treatment of cytomegalovirus (CMV) retinitis in AIDS patients.	3.84	3	0	phosphonic acids; pyrimidone	anti-HIV agent; antineoplastic agent; antiviral drug; photosensitizing agent
tiagabine Tiagabine: A nipecotic acid derivative that acts as a GABA uptake inhibitor and anticonvulsant agent. It is used in the treatment of EPILEPSY, for refractory PARTIAL SEIZURES.. tiagabine : A piperidinemonocarboxylic acid that is (R)-nipecotic acid in which the hydrogen attached to the nitrogen has been replaced by a 1,1-bis(3-methyl-2-thienyl)but-1-en-4-yl group. A GABA reuptake inhibitor, it is used (generally as the hydrochloride salt) for the treatment of epilepsy.	3.58	2	0	beta-amino acid; piperidinemonocarboxylic acid; tertiary amino compound; thiophenes	anticonvulsant; GABA reuptake inhibitor
mibefradil Mibefradil: A benzimidazoyl-substituted tetraline that selectively binds and inhibits CALCIUM CHANNELS, T-TYPE.	2.04	1	0	tetralins	T-type calcium channel blocker
topotecan Topotecan: An antineoplastic agent used to treat ovarian cancer. It works by inhibiting DNA TOPOISOMERASES, TYPE I.. topotecan : A pyranoindolizinoquinoline used as an antineoplastic agent. It is a derivative of camptothecin and works by binding to the topoisomerase I-DNA complex and preventing religation of these 328 single strand breaks.	3.84	3	0	pyranoindolizinoquinoline	antineoplastic agent; EC 5.99.1.2 (DNA topoisomerase) inhibitor
bromfenac bromfenac: bromfenac sodium is the active cpd; structure in first source. bromfenac : Amfenac in which the the hydrogen at the 4 position of the benzoyl group is substituted by bromine. It is used for the management of ocular pain and treatment of postoperative inflammation in patients who have undergone cataract extraction. It was withdrawn from the US market in 1998, following concerns over off-label abuse and hepatic failure.	3.58	2	0	aromatic amino acid; benzophenones; organobromine compound; substituted aniline	non-narcotic analgesic; non-steroidal anti-inflammatory drug
gemcitabine gemcitabine : A 2'-deoxycytidine having geminal fluoro substituents in the 2'-position. An inhibitor of ribonucleotide reductase, gemcitabine is used in the treatment of various carcinomas, particularly non-small cell lung cancer, pancreatic cancer, bladder cancer and breast cancer.	3.84	3	0	organofluorine compound; pyrimidine 2'-deoxyribonucleoside	antimetabolite; antineoplastic agent; antiviral drug; DNA synthesis inhibitor; EC 1.17.4.1 (ribonucleoside-diphosphate reductase) inhibitor; environmental contaminant; immunosuppressive agent; photosensitizing agent; prodrug; radiosensitizing agent; xenobiotic
ibutilide ibutilide: RN & structure in first source; RN refers to the fumarate salt	3.84	3	0	benzenes; organic amino compound
aripiprazole Aripiprazole: A piperazine and quinolone derivative that is used primarily as an antipsychotic agent. It is a partial agonist of SEROTONIN RECEPTOR, 5-HT1A and DOPAMINE D2 RECEPTORS, where it also functions as a post-synaptic antagonist, and an antagonist of SEROTONIN RECEPTOR, 5-HT2A. It is used for the treatment of SCHIZOPHRENIA and BIPOLAR DISORDER, and as an adjunct therapy for the treatment of depression.. aripiprazole : An N-arylpiperazine that is piperazine substituted by a 4-[(2-oxo-1,2,3,4-tetrahydroquinolin-7-yl)oxy]butyl group at position 1 and by a 2,3-dichlorophenyl group at position 4. It is an antipsychotic drug used for the treatment of Schizophrenia, and other mood disorders.	3.58	2	0	aromatic ether; delta-lactam; dichlorobenzene; N-alkylpiperazine; N-arylpiperazine; quinolone	drug metabolite; H1-receptor antagonist; second generation antipsychotic; serotonergic agonist
remifentanil Remifentanil: A piperidine-propionate derivative and opioid analgesic structurally related to FENTANYL. It functions as a short-acting MU OPIOID RECEPTOR agonist, and is used as an analgesic during induction or maintenance of general anesthesia, following surgery, during childbirth, and in mechanically ventilated patients under intensive care.. remifentanil : A piperidinecarboxylate ester that is methyl piperidine-4-carboxylate in which the hydrogen attached to the nitrogen is substituted by a 3-methoxy-3-oxopropyl group and the hydrogen at position 4 is substituted the nitrogen of N-propanoylaniline.	7.85	13	5	alpha-amino acid ester; anilide; monocarboxylic acid amide; piperidinecarboxylate ester	intravenous anaesthetic; mu-opioid receptor agonist; opioid analgesic; sedative
atorvastatin [no description available]	3.56	2	0	aromatic amide; dihydroxy monocarboxylic acid; monofluorobenzenes; pyrroles; statin (synthetic)	environmental contaminant; xenobiotic
lamivudine [no description available]	3.84	3	0	monothioacetal; nucleoside analogue; oxacycle; primary alcohol	allergen; anti-HBV agent; antiviral drug; EC 2.7.7.49 (RNA-directed DNA polymerase) inhibitor; HIV-1 reverse transcriptase inhibitor; prodrug
duloxetine [no description available]	3.23	1	0	duloxetine
irinotecan [no description available]	3.84	3	0	carbamate ester; delta-lactone; N-acylpiperidine; pyranoindolizinoquinoline; ring assembly; tertiary alcohol; tertiary amino compound	antineoplastic agent; apoptosis inducer; EC 5.99.1.2 (DNA topoisomerase) inhibitor; prodrug
valsartan Valsartan: A tetrazole derivative and ANGIOTENSIN II TYPE 1 RECEPTOR BLOCKER that is used to treat HYPERTENSION.. valsartan : A monocarboxylic acid amide consisting of L-valine in which the amino hydrogens have been replaced by a pentanoyl and a [2'-(1H-tetrazol-5-yl)biphenyl]-4-yl]methyl group. It exhibits antihypertensive activity.	3.84	3	0	biphenylyltetrazole; monocarboxylic acid amide; monocarboxylic acid	angiotensin receptor antagonist; antihypertensive agent; environmental contaminant; xenobiotic
ibandronic acid Ibandronic Acid: Aminobisphosphonate that is a potent inhibitor of BONE RESORPTION. It is used in the treatment of HYPERCALCEMIA associated with malignancy, for the prevention of fracture and bone complications in patients with breast cancer and bone metastases, and for the treatment and prevention of POSTMENOPAUSAL OSTEOPOROSIS.	3.58	2	0
ziprasidone ziprasidone: a benzisothiazoylpiperazine derivative; has combined dopamine and serotonin receptor antagonist activity; structurally related to tiospirone. ziprasidone : A piperazine compound having 1,2-benzothiazol-3-yl- and 2-(6-chloro-1,3-dihydro-2-oxindol-5-yl)ethyl substituents attached to the nitrogen atoms.	3.58	2	0	1,2-benzisothiazole; indolones; organochlorine compound; piperazines	antipsychotic agent; dopaminergic antagonist; histamine antagonist; muscarinic antagonist; psychotropic drug; serotonergic antagonist
zanamivir Zanamivir: A guanido-neuraminic acid that is used to inhibit NEURAMINIDASE.	2.04	1	0	guanidines	antiviral agent; EC 3.2.1.18 (exo-alpha-sialidase) inhibitor
zolmitriptan zolmitriptan: an antimigraine compound; a serotonin (5HT)-1D receptor agonist. zolmitriptan : A member of the class of tryptamines that is N,N-dimethyltryptamine in which the hydrogen at position 5 of the indole ring has been replaced by a [(4S)-2-oxo-1,3-oxazolidin-4-yl]methyl group. A serotonin 5-HT1 B and D receptor agonist, it is used for the treatment of migraine.	3.58	2	0	oxazolidinone; tryptamines	anti-inflammatory drug; serotonergic agonist; vasoconstrictor agent
emtricitabine Emtricitabine: A deoxycytidine analog and REVERSE TRANSCRIPTASE INHIBITOR with antiviral activity against HIV-1 and HEPATITIS B viruses. It is used to treat HIV INFECTIONS.. emtricitabine : An organofluorine compound that is 5-fluorocytosine substituted at the 1 position by a 2-(hydroxymethyl)-1,3-oxathiolan-5-yl group (2R,5S configuration). It is used in combination therapy for the treatment of HIV-1 infection.	3.23	1	0	monothioacetal; nucleoside analogue; organofluorine compound; pyrimidone	antiviral drug; HIV-1 reverse transcriptase inhibitor
tasosartan tasosartan: angiotensin II antagonist; structure given in first source	3.23	1	0	biphenyls
tiludronic acid tiludronic acid: a bone resorption inhibitor; an antihypercalcemic agent; used in the tratment of Paget's disease; used in the treatment and prevention of osteoporosis; structure given in first source	3.23	1	0	organochlorine compound
tirofiban Tirofiban: Tyrosine analog and PLATELET GLYCOPROTEIN GPIIB-IIIA COMPLEX antagonist that inhibits PLATELET AGGREGATION and is used in the treatment of ACUTE CORONARY SYNDROME.. tirofiban : A member of the class of piperidines that is L-tyrosine in which a hydrogen attached to the amino group is replaced by a butylsulfonyl group and in which the hydrogen attached to the phenolic hydroxy group is replaced by a 4-(piperidin-4-yl)butyl group.	3.58	2	0	L-tyrosine derivative; piperidines; sulfonamide	anticoagulant; fibrin modulating drug; platelet glycoprotein-IIb/IIIa receptor antagonist
capecitabine Capecitabine: A deoxycytidine derivative and fluorouracil PRODRUG that is used as an ANTINEOPLASTIC ANTIMETABOLITE in the treatment of COLON CANCER; BREAST CANCER and GASTRIC CANCER.. capecitabine : A carbamate ester that is cytidine in which the hydrogen at position 5 is replaced by fluorine and in which the amino group attached to position 4 is converted into its N-(penyloxy)carbonyl derivative. Capecitabine is a antineoplastic agent used in the treatment of cancers.	3.23	1	0	carbamate ester; cytidines; organofluorine compound	antimetabolite; antineoplastic agent; prodrug
adenosine quinquefolan B: isolated from roots of Panax quinquefolium L.; RN not in Chemline 10/87; RN from Toxlit	3.82	3	0	adenosines; purines D-ribonucleoside	analgesic; anti-arrhythmia drug; fundamental metabolite; human metabolite; vasodilator agent
cisatracurium cisatracurium: RN refers to (1R-(1alpha,2alpha(1'R,2'R)))-isomer. cisatracurium : A diester that is the (1R,1'R,2R,2'R)-diastereoisomer of atracurium, a quaternary ammonium ion consisting of pentane-1,5-diol with both hydroxy functions bearing 3-[1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-3,4-dihydroisoquinolinium-2(1H)-yl]propanoyl groups. The active species in the skeletal muscle relaxant cisatracurium besylate.	2.04	1	0	diester; quaternary ammonium ion	muscle relaxant; nicotinic antagonist
fosinoprilat fosinoprilat: active phosphinic acid metabolite of prodrug fosenopril, which is activated by esterases in vivo; structure given in first source; binds zinc with phosphinic acid group. fosinoprilat : A phosphinic acid-containing N-acyl derivative of (4S)-cyclohexyl-L-proline. An inhibitor of angiotensin converting enzyme (ACE), it is used as the phosphinate ester pro-drug fosinopril for treatment of hypertension and chronic heart failure.	2.04	1	0	L-proline derivative; phosphinic acids	antihypertensive agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
trovafloxacin trovafloxacin: a trifluoronaphthyridone derivative of 7-(3-azabicyclo(3.1.0)hexyl)naphthyridone; has antineoplastic activity. trovafloxacin : A 1,8-naphthyridine derivative that is 4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid bearing additional 2,4-difluorophenyl, fluoro and 6-amino-3-azabicyclo[3.1.0]hex-3-yl substituents at positions 1, 6 and 7 respectively. A broad-spectrum antibiotic that was withdrawn from the market due to risk of liver failure.	3.58	2	0
cefprozil [no description available]	3.84	3	0	cephalosporin; semisynthetic derivative	antibacterial drug
methylprednisolone aceponate methylprednisolone aceponate: RN given for (6alpha,11beta)-isomer	2.02	1	0	corticosteroid hormone
dexamethasone 17-valerate dexamethasone 17-valerate: RN given refers to (11beta,16alpha)-isomer; structure	2.02	1	0	21-hydroxy steroid
dexamethasone dipropionate [no description available]	2.02	1	0	corticosteroid hormone
efavirenz efavirenz: HIV-1 reverse transcriptase inhibitor. efavirenz : 1,4-Dihydro-2H-3,1-benzoxazin-2-one substituted at the 4 position by cyclopropylethynyl and trifluoromethyl groups (S configuration) and at the 6 position by chlorine. A non-nucleoside reverse transcriptase inhibitor with activity against HIV, it is used with other antiretrovirals for combination therapy of HIV infection.	3.23	1	0	acetylenic compound; benzoxazine; cyclopropanes; organochlorine compound; organofluorine compound	antiviral drug; HIV-1 reverse transcriptase inhibitor
nelfinavir Nelfinavir: A potent HIV protease inhibitor. It is used in combination with other antiviral drugs in the treatment of HIV in both adults and children.. nelfinavir : An aryl sulfide that is used (as its mesylate salt) for treatment of HIV and also exhibits some anticancer properties.	3.23	1	0	aryl sulfide; benzamides; organic heterobicyclic compound; phenols; secondary alcohol; tertiary amino compound	antineoplastic agent; HIV protease inhibitor
glucose, (beta-d)-isomer beta-D-glucose : D-Glucopyranose with beta configuration at the anomeric centre.. (1->4)-beta-D-glucan : A beta-D-glucan in which the glucose units are connected by (1->4) linkages.. (1->3)-beta-D-glucan : A beta-D-glucan in which the glucose units are connected by (1->3) linkages.	2.39	2	0	D-glucopyranose	epitope; mouse metabolite
fenofibric acid fenofibric acid: RN given refers to parent cpd without isomeric designation; structure. fenofibric acid : A monocarboxylic acid that is 2-methylpropanoic acid substituted by a 4-(4-chlorobenzoyl)phenoxy group at position 2. It is a metabolite of the drug fenofibrate.	3.23	1	0	aromatic ketone; chlorobenzophenone; monocarboxylic acid	drug metabolite; marine xenobiotic metabolite
plerixafor plerixafor: a bicyclam derivate, highly potent & selective inhibitor of HIV-1 & HIV-2. plerixafor : An azamacrocycle consisting of two cyclam rings connected by a 1,4-phenylenebis(methylene) linker. It is a CXCR4 chemokine receptor antagonist and a hematopoietic stem cell mobilizer. It is used in combination with grulocyte-colony stimulating factor (G-CSF) to mobilize hematopoietic stem cells to the perpheral blood for collection and subsequent autologous transplantation in patients with non-Hodgkin's lymphoma and multiple myeloma.	3.23	1	0	azacycloalkane; azamacrocycle; benzenes; crown amine; secondary amino compound; tertiary amino compound	anti-HIV agent; antineoplastic agent; C-X-C chemokine receptor type 4 antagonist; immunological adjuvant
amprenavir [no description available]	3.23	1	0	carbamate ester; sulfonamide; tetrahydrofuryl ester	antiviral drug; HIV protease inhibitor
oseltamivir Oseltamivir: An acetamido cyclohexene that is a structural homolog of SIALIC ACID and inhibits NEURAMINIDASE.. oseltamivir : A cyclohexenecarboxylate ester that is the ethyl ester of oseltamivir acid. An antiviral prodrug (it is hydrolysed to the active free carboxylic acid in the liver), it is used to slow the spread of influenza.	3.23	1	0	acetamides; amino acid ester; cyclohexenecarboxylate ester; primary amino compound	antiviral drug; EC 3.2.1.18 (exo-alpha-sialidase) inhibitor; environmental contaminant; prodrug; xenobiotic
iopamidol Iopamidol: A non-ionic, water-soluble contrast agent which is used in myelography, arthrography, nephroangiography, arteriography, and other radiological procedures.. iopamidol : A benzenedicarboxamide compound having N-substituted carbamoyl groups at the 1- and 3-positions, iodo substituents at the 2-, 4- and 6-positions and a (2S)-2-hydroxypropanamido group at the 5-position.	2.43	2	0	benzenedicarboxamide; organoiodine compound; pentol	environmental contaminant; radioopaque medium; xenobiotic
histamine phosphate histamine phosphate : A phosphate salt that is the diphosphate salt of histamine.	3.23	1	0	phosphate salt	histamine agonist
imipramine n-oxide imipramine N-oxide: RN given refers to parent cpd; structure	2.04	1	0	dibenzooxazepine
tilbroquinol [no description available]	3.23	1	0	organohalogen compound; quinolines
bendamustine [no description available]	3.23	1	0	benzimidazoles
droxicam droxicam: structure given in first source. droxicam : An organic heterotricyclic compound that is 2H,5H-[1,3]oxazino[5,6-c][1,2]benzothiazine-2,4(3H)-dione 6,6-dioxide substituted at positions 3 and 5 by pyridin-2-yl and methyl groups respectively. A prodrug of piroxicam, it is used for the relief of pain and inflammation in musculoskeletal disorders such as rheumatoid arthritis and osteoarthritis.	3.23	1	0	organic heterotricyclic compound; pyridines	cyclooxygenase 1 inhibitor; hepatotoxic agent; non-narcotic analgesic; non-steroidal anti-inflammatory drug; platelet aggregation inhibitor; prodrug
ebrotidine ebrotidine: an H2-receptor antagonist and gastric mucosa protector	3.23	1	0	sulfonamide
dexloxiglumide dexloxiglumide: a CCK receptor antagonist; structure given in first source	2.04	1	0	glutamic acid derivative
intoplicine intoplicine: structure in first source	2.04	1	0	pyridoindole
repaglinide [no description available]	3.58	2	0	piperidines
telmisartan Telmisartan: A biphenyl compound and benzimidazole derivative that acts as an angiotensin II type 1 receptor antagonist. It is used in the management of HYPERTENSION.. telmisartan : A member of the class of benzimidazoles used widely in the treatment of hypertension.	3.58	2	0	benzimidazoles; biphenyls; carboxybiphenyl	angiotensin receptor antagonist; antihypertensive agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor; environmental contaminant; xenobiotic
dexfenfluramine Dexfenfluramine: The S-isomer of FENFLURAMINE. It is a serotonin agonist and is used as an anorectic. Unlike fenfluramine, it does not possess any catecholamine agonist activity.. (S)-fenfluramine : The S-enantiomer of fenfluramine. It stimulates the release of serotonin and selectively inhibits its reuptake, but unlike fenfluramine it does not possess catecholamine agonist activity. It was formerly given by mouth as the hydrochloride in the treatment of obesity, but, like fenfluramine, was withdrawn wolrdwide following reports of valvular heart defects.	2.43	2	0	fenfluramine	appetite depressant; serotonergic agonist; serotonin uptake inhibitor
ethinyl estradiol-17-sulfate ethinyl estradiol-17-sulfate: RN given refers to the (17alpha)-isomer	2.04	1	0
triazoles Triazoles: Heterocyclic compounds containing a five-membered ring with two carbon atoms and three nitrogen atoms with the molecular formula C2H3N3.. triazoles : An azole in which the five-membered heterocyclic aromatic skeleton contains three N atoms and two C atoms.	1.96	1	0	1,2,3-triazole
g 29505 G 29505: structure	7.34	2	0	methoxybenzenes
ethinylestradiol-3-sulfate ethinylestradiol-3-sulfate: binds to albumin at 2 sites	2.04	1	0	17beta-hydroxy steroid; steroid sulfate	antineoplastic agent; estrogen
medetomidine Medetomidine: An agonist of RECEPTORS, ADRENERGIC ALPHA-2 that is used in veterinary medicine for its analgesic and sedative properties. It is the racemate of DEXMEDETOMIDINE.	2.39	2	0	imidazoles
sertraline Sertraline: A selective serotonin uptake inhibitor that is used in the treatment of depression.. sertraline : A member of the class of tetralins that is tetralin which is substituted at positions 1 and 4 by a methylamino and a 3,4-dichlorophenyl group, respectively (the S,S diastereoisomer). A selective serotonin-reuptake inhibitor (SSRI), it is administered orally as the hydrochloride salt as an antidepressant for the treatment of depression, obsessive-compulsive disorder, panic disorder and post-traumatic stress disorder.	3.56	2	0	dichlorobenzene; secondary amino compound; tetralins	antidepressant; serotonin uptake inhibitor
cefcanel cefcanel: RN given refers to (6R-(6 alpha,7 beta(R*)))-isomer; structure	2.04	1	0
zoledronic acid Zoledronic Acid: An imidobisphosphonate inhibitor of BONE RESORPTION that is used for the treatment of malignancy-related HYPERCALCEMIA; OSTEITIS DEFORMANS; and OSTEOPOROSIS.. zoledronic acid : An imidazole compound having a 2,2-bis(phosphono)-2-hydroxyethane-1-yl substituent at the 1-position.	3.58	2	0	1,1-bis(phosphonic acid); imidazoles	bone density conservation agent
epristeride epristeride: structure given in first source	2.04	1	0	steroid acid
talinolol [no description available]	2.04	1	0	ureas
denaverine denaverine: RN given refers to parent cpd; structure	2.04	1	0	diarylmethane
acamprosate Acamprosate: Structural analog of taurine that is used for the prevention of relapse in individuals with ALCOHOLISM.. acamprosate : An organosulfonic acid that is propane-1-sulfonic acid substituted by an acetylamino group at position 3.	3.23	1	0	acetamides; organosulfonic acid	environmental contaminant; neurotransmitter agent; xenobiotic
isaxonine isaxonine: promotes nerve growth	3.23	1	0	aminopyrimidine
diprafenone diprafenone: structure given in first source	2.04	1	0	aromatic compound
erythromycin propionate erythromycin propionate: form in which erythromycin estolate is principally absorbed	2.02	1	0	erythromycin derivative
nebivolol 2,2'-iminobis[1-(6-fluoro-3,4-dihydro-2H-chromen-2-yl)ethanol] : A member of the class of chromanes that is 2,2'-iminodiethanol in which one hydrogen attached to each hydroxy-bearing carbon is replaced by a 6-fluorochroman-2-yl group.	3.58	2	0	chromanes; diol; organofluorine compound; secondary alcohol; secondary amino compound
atipamezole [no description available]	1.98	1	0
uk 68798 [no description available]	3.58	2	0	aromatic ether; sulfonamide; tertiary amino compound	anti-arrhythmia drug; potassium channel blocker
ljc 10627 biapenem: structure given in first source. biapenem : A carbapenem antibiotic in which the azetidine and pyrroline rings carry 1-hydroxymethyl and pyrazolo[1,2-a][1,2,4]triazolium-6-ylthio substituents respectively.	2.04	1	0	carbapenems; organic sulfide; pyrazolotriazole	antibacterial drug
hp 873 iloperidone: an atypical, negative symptom antipsychotic agent. iloperidone : A member of the class of piperidines that is the 4-acetyl-2-methoxyphenyl ether of 3-(piperidin-1-yl)propan-1-ol which is substituted at position 4 of the piperidine ring by a 6-fluoro-1,2-benzoxazol-3-yl group. A member of the group of second generation antipsychotics (also known as an atypical antipsychotics), it is used for the treatment of schizophrenia.	3.23	1	0	1,2-benzoxazoles; aromatic ether; aromatic ketone; methyl ketone; monoamine; organofluorine compound; piperidines; tertiary amino compound	dopaminergic antagonist; second generation antipsychotic; serotonergic antagonist
dexrazoxane Dexrazoxane: The (+)-enantiomorph of razoxane.	3.84	3	0	razoxane	antineoplastic agent; cardiovascular drug; chelator; immunosuppressive agent
fenoxypropazine [no description available]	3.23	1	0	aromatic ether
antebate betamethasone butyrate propionate: a topical corticosteroid	2.02	1	0	corticosteroid hormone
voriconazole Voriconazole: A triazole antifungal agent that specifically inhibits STEROL 14-ALPHA-DEMETHYLASE and CYTOCHROME P-450 CYP3A.. voriconazole : A triazole-based antifungal agent used for the treatment of esophageal candidiasis, invasive pulmonary aspergillosis, and serious fungal infections caused by Scedosporium apiospermum and Fusarium spp. It is an inhibitor of cytochrome P450 2C9 (CYP2C9) and CYP3A4.	3.58	2	0	conazole antifungal drug; difluorobenzene; pyrimidines; tertiary alcohol; triazole antifungal drug	P450 inhibitor
betamipron [no description available]	2.04	1	0	organonitrogen compound; organooxygen compound
bufuralol bufuralol: RN given refers to cpd without isomeric designation; structure	2.04	1	0	benzofurans
aceclofenac [no description available]	3.23	1	0	amino acid; carboxylic ester; dichlorobenzene; monocarboxylic acid; secondary amino compound	EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; non-narcotic analgesic; non-steroidal anti-inflammatory drug
nitrefazole [no description available]	3.23	1	0	imidazoles
minaxolone minaxolone: RN given refers to parent cpd(2beta,3alpha,5alpha,11alpha)-isomer	3.75	3	0
panipenem panipenem: synthetic cpd; structure given in first source	2.04	1	0	organic molecular entity
perindoprilat perindoprilat : A dipeptide obtained by formal condensation of one of the carboxy groups of N-[(1S)-1-carboxyethyl]-L-norvaline with the amino group of (2S,3aS,7aS)-octahydroindole-2-carboxylic acid. The major active metabolite of perindopril.	2.04	1	0	dicarboxylic acid; dipeptide; L-alanine derivative; organic heterobicyclic compound	antihypertensive agent; drug metabolite; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
7-hydroxystaurosporine [no description available]	2.04	1	0
methotrimeprazine Methotrimeprazine: A phenothiazine with pharmacological activity similar to that of both CHLORPROMAZINE and PROMETHAZINE. It has the histamine-antagonist properties of the antihistamines together with CENTRAL NERVOUS SYSTEM effects resembling those of chlorpromazine. (From Martindale, The Extra Pharmacopoeia, 30th ed, p604). methotrimeprazine : A member of the class of phenothiazines that is 10H-phenothiazine substituted by a (2R)-3-(dimethylamino)-2-methylpropyl group and a methoxy group at positions 10 and 2 respectively.	2.87	4	0	phenothiazines; tertiary amine	anticoronaviral agent; cholinergic antagonist; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; non-narcotic analgesic; phenothiazine antipsychotic drug; serotonergic antagonist
9-aminocamptothecin [no description available]	2.04	1	0	pyranoindolizinoquinoline
sch 34343 Sch 34343: structure given in first source; RN given refers to (5R-(5alpha,6alpha))-isomer	2.04	1	0
squalamine squalamine: from dogfish shark Squalus acanthias; structure given in first source	2.04	1	0	bile acid
doripenem Doripenem: A carbapenem derivative antibacterial agent that is more stable to renal dehydropeptidase I than IMIPENEM, but does not need to be given with an enzyme inhibitor such as CILASTATIN. It is used in the treatment of infections such as HOSPITAL-ACQUIRED PNEUMONIA, and complicated intra-abdominal or urinary-tract infections, including PYELONEPHRITIS.	3.23	1	0	carbapenems
atovaquone Atovaquone: A hydroxynaphthoquinone that has antimicrobial activity and is being used in antimalarial protocols.. atovaquone : A naphthoquinone compound having a 4-(4-chlorophenyl)cyclohexyl group at the 2-position and a hydroxy substituent at the 3-position.	3.84	3	0	hydroxy-1,2-naphthoquinone
rivastigmine [no description available]	3.58	2	0	carbamate ester; tertiary amino compound	cholinergic drug; EC 3.1.1.8 (cholinesterase) inhibitor; neuroprotective agent
frovatriptan [no description available]	3.58	2	0	carbazoles
eletriptan eletriptan: 5-HT(1B/1D) receptor agonist; structure in first source. eletriptan : An N-alkylpyrrolidine, that is N-methylpyrrolidine in which the pro-R hydrogen at position 2 is replaced by a {5-[2-(phenylsulfonyl)ethyl]-1H-indol-3-yl}methyl group.	3.58	2	0	indoles; N-alkylpyrrolidine; sulfone	non-steroidal anti-inflammatory drug; serotonergic agonist; vasoconstrictor agent
rosiglitazone [no description available]	3.58	2	0	aminopyridine; thiazolidinediones	EC 6.2.1.3 (long-chain-fatty-acid--CoA ligase) inhibitor; ferroptosis inhibitor; insulin-sensitizing drug
bexarotene [no description available]	3.23	1	0	benzoic acids; naphthalenes; retinoid	antineoplastic agent
flunisolide flunisolide: flunisolide HFA is a formulation of flunisolide using hydrofluoroalkane (HFA) as propellant in place of chlorofluorocarbon (CFC) ones	2.02	1	0	11beta-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(1),Delta(4)-steroid; cyclic ketal; fluorinated steroid; primary alpha-hydroxy ketone	anti-asthmatic drug; anti-inflammatory drug; immunosuppressive agent
clarithromycin Clarithromycin: A semisynthetic macrolide antibiotic derived from ERYTHROMYCIN that is active against a variety of microorganisms. It can inhibit PROTEIN SYNTHESIS in BACTERIA by reversibly binding to the 50S ribosomal subunits. This inhibits the translocation of aminoacyl transfer-RNA and prevents peptide chain elongation.. clarithromycin : The 6-O-methyl ether of erythromycin A, clarithromycin is a macrolide antibiotic used in the treatment of respiratory-tract, skin and soft-tissue infections. It is also used to eradicate Helicobacter pylori in the treatment of peptic ulcer disease. It prevents bacteria from growing by interfering with their protein synthesis.	3.84	3	0	macrolide antibiotic	antibacterial drug; environmental contaminant; protein synthesis inhibitor; xenobiotic
nicotine (S)-nicotine : A 3-(1-methylpyrrolidin-2-yl)pyridine in which the chiral centre has S-configuration. The naturally occurring and most active enantiomer of nicotine, isolated from Nicotiana tabacum.	2.74	3	0	3-(1-methylpyrrolidin-2-yl)pyridine	anxiolytic drug; biomarker; immunomodulator; mitogen; neurotoxin; nicotinic acetylcholine receptor agonist; peripheral nervous system drug; phytogenic insecticide; plant metabolite; psychotropic drug; teratogenic agent; xenobiotic
moexipril [no description available]	3.56	2	0	peptide
mci 9038 [no description available]	3.58	2	0	peptide
dextromoramide Dextromoramide: An opioid analgesic structurally related to METHADONE and used in the treatment of severe pain. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1070). dextromoramide : An N-acylpyrrolidine arising by formal condensation of pyrrolidine with (3S)-3-methyl-4-(morpholin-4-yl)-2,2-diphenylbutanoic acid. An opioid analgesic that is structurally related to methadone, it is more poweful than morphine but shorter acting. It has been used (particularly as the hydrogen tartrate salt) for the treatment of severe pain, but was discontinued in the UK in 2004.	1.94	1	0	morpholines; N-acylpyrrolidine	opioid analgesic
fulvestrant Fulvestrant: An estradiol derivative and estrogen receptor antagonist that is used for the treatment of estrogen receptor-positive, locally advanced or metastatic breast cancer.. fulvestrant : A 3-hydroxy steroid that is 17beta-estradiol in which the 7alpha hydrogen has been replaced by a nonyl group in which one of the hydrogens of the terminal methyl has been replaced by a (4,4,5,5,5-pentafluoropentyl)sulfinyl group. An estrogen receptor antagonist, it is used in the treatment of breast cancer.	3.23	1	0	17beta-hydroxy steroid; 3-hydroxy steroid; organofluorine compound; sulfoxide	antineoplastic agent; estrogen antagonist; estrogen receptor antagonist
tert-butylbicyclophosphorothionate tert-butylbicyclophosphorothionate: binds to GABA & ion recognition sites; structure given in first source	1.97	1	0	organic thiophosphate
imipenem, anhydrous Imipenem: Semisynthetic thienamycin that has a wide spectrum of antibacterial activity against gram-negative and gram-positive aerobic and anaerobic bacteria, including many multiresistant strains. It is stable to beta-lactamases. Clinical studies have demonstrated high efficacy in the treatment of infections of various body systems. Its effectiveness is enhanced when it is administered in combination with CILASTATIN, a renal dipeptidase inhibitor.. imipenem : A broad-spectrum, intravenous beta-lactam antibiotic of the carbapenem subgroup.	2.04	1	0	beta-lactam antibiotic allergen; carbapenems; zwitterion	antibacterial drug
alphaxalone alphaxalone: RN given refers to (3alpha,5alpha)-isomer; structure	2.88	4	0	corticosteroid hormone
bosentan anhydrous Bosentan: A sulfonamide and pyrimidine derivative that acts as a dual endothelin receptor antagonist used to manage PULMONARY HYPERTENSION and SYSTEMIC SCLEROSIS.	3.58	2	0	primary alcohol; pyrimidines; sulfonamide	antihypertensive agent; endothelin receptor antagonist
u 74006f tirilazad: a lazaroid; potent inhibitor of iron-dependent lipid peroxidation; has shown excellent activity in in vivo models of experimental central nervous system trauma & ischemia; structure given in first source; tradename Freedox	2.01	1	0	corticosteroid hormone
beta-carboline-3-carboxylic acid ethyl ester beta-carboline-3-carboxylic acid ethyl ester: isolated from brain tissue & urine; extremely potent displacer of diazepam from brain benzodiazepam receptors; structure in first source	2.37	2	0	beta-carbolines
perindopril Perindopril: An angiotensin-converting enzyme inhibitor. It is used in patients with hypertension and heart failure.. perindopril : An alpha-amino acid ester that is the ethyl ester of N-{(2S)-1-[(2S,3aS,7aS)-2-carboxyoctahydro-1H-indol-1-yl]-1-oxopropan-2-yl}-L-norvaline	3.23	1	0	alpha-amino acid ester; dicarboxylic acid monoester; ethyl ester; organic heterobicyclic compound	antihypertensive agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
asulacrine asulacrine: derivative of amsacrine; structure given in first source	2.04	1	0	acridines
hydroxycotinine hydroxycotinine: metabolite of nicotine; RN given refers to (S)-isomer; structure. trans-3-hydroxycotinine : An N-alkylpyrrolidine that is cotinine substituted at position C-3 by a hydroxy group (the 3R,5S-diastereomer).	2.04	1	0	N-alkylpyrrolidine; pyridines; pyrrolidin-2-ones; pyrrolidine alkaloid
quinaprilat quinaprilat: metabolite of quinapril. quinaprilat : A dicarboxylic acid resulting from the hydrolysis of the ethyl ester group of quinapril to give the corresponding dicarboxylic acid. The active angiotensin-converting enzyme inhibitor (ACE inhibitor) of the prodrug quinapril.	2.04	1	0	dicarboxylic acid; isoquinolines; tertiary carboxamide	antihypertensive agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor; vasodilator agent
1h-indene-2-carboxylic acid, 1-(1,3-benzodioxol-5-yl)-3-(2- (carboxymethoxy)-4-methoxyphenyl)-2,3-dihydro-5-propoxy-, (1s,2r,3s)- 1H-Indene-2-carboxylic acid, 1-(1,3-benzodioxol-5-yl)-3-(2- (carboxymethoxy)-4-methoxyphenyl)-2,3-dihydro-5-propoxy-, (1S,2R,3S)-: an ET(A) and ET(B) endothelin receptor antagonist; structure in first source	2	1	0
2-hydroxyimipramine 2-hydroxyimipramine: RN given refers to parent cpd	2.04	1	0	dibenzoazepine
ecteinascidin 743 [no description available]	2.04	1	0	acetate ester; azaspiro compound; bridged compound; hemiaminal; isoquinoline alkaloid; lactone; organic heteropolycyclic compound; organic sulfide; oxaspiro compound; polyphenol; tertiary amino compound	alkylating agent; angiogenesis modulating agent; anti-inflammatory agent; antineoplastic agent; marine metabolite
tadalafil [no description available]	3.23	1	0	benzodioxoles; pyrazinopyridoindole	EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor; vasodilator agent
paliperidone 3-{2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl}-9-hydroxy-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one : A member of the class of pyridopyrimidines that is 9-hydroxy-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one carrying an additional 2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl group at position 2.. paliperidone : A racemate comprising equimolar amounts of (R)- and (S)-paliperidone. Paliperidone is the primary active metabolite of the older antipsychotic risperidone and is used for treatment of schizophrenia.	3.23	1	0	1,2-benzoxazoles; heteroarylpiperidine; organofluorine compound; pyridopyrimidine; secondary alcohol
nitisinone [no description available]	3.23	1	0	(trifluoromethyl)benzenes; C-nitro compound; cyclohexanones; mesotrione	EC 1.13.11.27 (4-hydroxyphenylpyruvate dioxygenase) inhibitor
clofarabine [no description available]	3.23	1	0	adenosines; organofluorine compound	antimetabolite; antineoplastic agent
pramipexole Pramipexole: A benzothiazole derivative and dopamine agonist with antioxidant properties that is used in the treatment of PARKINSON DISEASE and RESTLESS LEGS SYNDROME.. pramipexole : A member of the class of benzothiazoles that is 4,5,6,7-tetrahydro-1,3-benzothiazole in which the hydrogens at the 2 and 6-pro-S-positions are substituted by amino and propylamino groups, respectively.	3.23	1	0	benzothiazoles; diamine	antidyskinesia agent; antiparkinson drug; dopamine agonist; radical scavenger
valdecoxib [no description available]	3.23	1	0	isoxazoles; sulfonamide	antipyretic; antirheumatic drug; cyclooxygenase 2 inhibitor; non-narcotic analgesic; non-steroidal anti-inflammatory drug
alphaprodine Alphaprodine: An opioid analgesic chemically related to and with an action resembling that of MEPERIDINE, but more rapid in onset and of shorter duration. It has been used in obstetrics, as pre-operative medication, for minor surgical procedures, and for dental procedures. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1067)	2.64	3	0	piperidines
almotriptan almotriptan : An indole compound having a 2-(dimethylamino)ethyl group at the 3-position and a (pyrrolidin-1-ylsulfonyl)methyl group at the 5-position.	3.58	2	0	indoles; sulfonamide; tertiary amine	non-steroidal anti-inflammatory drug; serotonergic agonist; vasoconstrictor agent
mk 0663 [no description available]	2.04	1	0	bipyridines; organochlorine compound; sulfone	cyclooxygenase 2 inhibitor; non-steroidal anti-inflammatory drug
gefitinib [no description available]	3.58	2	0	aromatic ether; monochlorobenzenes; monofluorobenzenes; morpholines; quinazolines; secondary amino compound; tertiary amino compound	antineoplastic agent; epidermal growth factor receptor antagonist
desloratadine desloratadine: major metabolite of loratadine. desloratadine : Loratadine in which the ethoxycarbonyl group attached to the piperidine ring is replaced by hydrogen. The major metabolite of loratidine, desloratadine is an antihistamine which is used for the symptomatic relief of allergic conditions including rhinitis and chronic urticaria. It does not readily enter the central nervous system, so does not cause drowsiness.	3.23	1	0	benzocycloheptapyridine	anti-allergic agent; cholinergic antagonist; drug metabolite; H1-receptor antagonist
desvenlafaxine O-desmethylvenlafaxine : A tertiary amino compound that is N,N-dimethylethanamine substituted at position 1 by a 1-hydroxycyclohexyl and 4-hydroxyphenyl group. It is a metabolite of the drug venlafaxine.	3.23	1	0	cyclohexanols; phenols; tertiary amino compound	antidepressant; drug metabolite; marine xenobiotic metabolite
methotrexate [no description available]	4.01	4	0	dicarboxylic acid; monocarboxylic acid amide; pteridines	abortifacient; antimetabolite; antineoplastic agent; antirheumatic drug; dermatologic drug; DNA synthesis inhibitor; EC 1.5.1.3 (dihydrofolate reductase) inhibitor; immunosuppressive agent
tamsulosin [no description available]	3.58	2	0	5-(2-{[2-(2-ethoxyphenoxy)ethyl]amino}propyl)-2-methoxybenzenesulfonamide	alpha-adrenergic antagonist; antineoplastic agent
rufinamide rufinamide: for treatment of Lennox-Gastaut syndrome; structure in first source	3.23	1	0	aromatic amide; heteroarene
sulbactam [no description available]	2.04	1	0	penicillanic acids
olmesartan medoxomil Olmesartan Medoxomil: An ANGIOTENSIN II TYPE 1 RECEPTOR BLOCKER that is used to manage HYPERTENSION.	3.23	1	0	biphenyls
dexpanthenol dexpanthenol: The alcohol of pantothenic acid	3.23	1	0	amino alcohol; monocarboxylic acid amide	cholinergic drug; provitamin
fosamprenavir fosamprenavir: a prodrug of the protease inhibitor amprenavir. fosamprenavir : A sulfonamide with a structure based on that of sulfanilamide substituted on the sulfonamide nitrogen by a (2R,3S)-4-phenyl-2-(phosphonooxy)-3-({[(3S)-tetrahydrofuran-3-yloxy]carbonyl}amino)butyl group. It is a pro-drug of the HIV protease inhibitor and antiretroviral drug amprenavir.	3.23	1	0	sulfonamide	prodrug
febuxostat Febuxostat: A thiazole derivative and inhibitor of XANTHINE OXIDASE that is used for the treatment of HYPERURICEMIA in patients with chronic GOUT.. febuxostat : A 1,3-thiazolemonocarboxylic acid that is 4-methyl-1,3-thiazole-5-carboxylic acid which is substituted by a 3-cyano-4-(2-methylpropoxy)phenyl group at position 2. It is an orally-active, potent, and selective xanthine oxidase inhibitor used for the treatment of chronic hyperuricaemia in patients with gout.	3.23	1	0	1,3-thiazolemonocarboxylic acid; aromatic ether; nitrile	EC 1.17.3.2 (xanthine oxidase) inhibitor
dilevalol (R,R)-labetalol : A 2-hydroxy-5-{1-hydroxy-2-[(4-phenylbutan-2-yl)amino]ethyl}benzamide that has 1R,2R-configuration.	2.04	1	0	2-hydroxy-5-{1-hydroxy-2-[(4-phenylbutan-2-yl)amino]ethyl}benzamide
escitalopram Escitalopram: S-enantiomer of CITALOPRAM. Belongs to a class of drugs known as SELECTIVE SEROTONIN REUPTAKE INHIBITORS, used to treat depression and generalized anxiety disorder.. escitalopram : A 1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-2-benzofuran-5-carbonitrile that has S-configuration at the chiral centre. It is the active enantiomer of citalopram.	3.23	1	0	1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-2-benzofuran-5-carbonitrile	antidepressant; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
10-propargyl-10-deazaaminopterin 10-propargyl-10-deazaaminopterin: structure in first source. pralatrexate : A pteridine that is the N-4-[1-(2,4-diaminopteridin-6-yl)pent-4-yn-2-yl]benzoyl derivative of L-glutamic acid. Used for treatment of Peripheral T-Cell Lymphoma, an aggressive form of non-Hodgkins lymphoma.	3.23	1	0	N-acyl-L-glutamic acid; pteridines; terminal acetylenic compound	antimetabolite; antineoplastic agent; EC 1.5.1.3 (dihydrofolate reductase) inhibitor
docetaxel [no description available]	2.43	2	0	hydrate; secondary alpha-hydroxy ketone	antineoplastic agent
docetaxel anhydrous Docetaxel: A semisynthetic analog of PACLITAXEL used in the treatment of locally advanced or metastatic BREAST NEOPLASMS and NON-SMALL CELL LUNG CANCER.. docetaxel anhydrous : A tetracyclic diterpenoid that is paclitaxel with the N-benzyloxycarbonyl group replaced by N-tert-butoxycarbonyl, and the acetoxy group at position 10 replaced by a hydroxy group.	3.23	1	0	secondary alpha-hydroxy ketone; tetracyclic diterpenoid	antimalarial; antineoplastic agent; photosensitizing agent
irofulven irofulven: structure in first source	2.04	1	0	cyclohexenones
atazanavir atazanavir : A heavily substituted carbohydrazide that is an antiretroviral drug of the protease inhibitor (PI) class used to treat infection of human immunodeficiency virus (HIV).	3.23	1	0	carbohydrazide	antiviral drug; HIV protease inhibitor
ym 872 YM 872: structure in first source	2.04	1	0
levofloxacin Levofloxacin: The L-isomer of Ofloxacin.. levofloxacin : An optically active form of ofloxacin having (S)-configuration; an inhibitor of bacterial topoisomerase IV and DNA gyrase.	3.84	3	0	9-fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid; fluoroquinolone antibiotic; quinolone antibiotic	antibacterial drug; DNA synthesis inhibitor; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; topoisomerase IV inhibitor
ezetimibe Ezetimibe: An azetidine derivative and ANTICHOLESTEREMIC AGENT that inhibits intestinal STEROL absorption. It is used to reduce total CHOLESTEROL; LDL CHOLESTEROL, and APOLIPOPROTEINS B in the treatment of HYPERLIPIDEMIAS.. ezetimibe : A beta-lactam that is azetidin-2-one which is substituted at 1, 3, and 4 by p-fluorophenyl, 3-(p-fluorophenyl)-3-hydroxypropyl, and 4-hydroxyphenyl groups, respectively (the 3R,3'S,4S enantiomer).	3.23	1	0	azetidines; beta-lactam; organofluorine compound	anticholesteremic drug; antilipemic drug; antimetabolite
ertapenem Ertapenem: A carbapenem derivative antibacterial agent that is more stable to renal dehydropeptidase I than IMIPENEM, but does not need to be given with an enzyme inhibitor such as CILASTATIN. It is used in the treatment of Gram-positive and Gram-negative bacterial infections including intra-abdominal infections, acute gynecological infections, complicated urinary tract infections, skin infections, and respiratory tract infections. It is also used to prevent infection in colorectal surgery.. ertapenem : Meropenem in which the one of the two methyl groups attached to the amide nitrogen is replaced by hydrogen while the other is replaced by a 3-carboxyphenyl group. The sodium salt is used for the treatment of moderate to severe susceptible infections including intra-abdominal and acute gynaecological infections, pneumonia, and infections of the skin and of the urinary tract.	3.58	2	0	carbapenemcarboxylic acid; pyrrolidinecarboxamide	antibacterial drug
dx 8951 [no description available]	2.04	1	0	pyranoindolizinoquinoline
cox 189 lumiracoxib: a COX-2 inhibitor. lumiracoxib : An amino acid that is phenylacetic acid which is substituted at position 2 by the nitrogen of 2-chloro-6-fluoroaniline and at position 5 by a methyl group. A highly selective cyclooxygenase 2 inhibitor, it was briefly used for the treatment of osteoarthritis, but was withdrawn due to concersns of hepatotoxicity.	3.23	1	0	amino acid; monocarboxylic acid; organochlorine compound; organofluorine compound; secondary amino compound	cyclooxygenase 2 inhibitor; non-steroidal anti-inflammatory drug
cilomilast [no description available]	2.04	1	0	methoxybenzenes
conivaptan conivaptan : The amide resulting from the formal condensation of 4-[(biphenyl-2-ylcarbonyl)amino]benzoic acid with the benzazepine nitrogen of 2-methyl-1,4,5,6-tetrahydroimidazo[4,5-d][1]benzazepine. It is an antagonist for two of the three types of arginine vasopressin (AVP) receptors, V1a and V2. It is used as its hydrochloride salt for the treatment of hyponatraemia (low blood sodium levels) caused by syndrome of inappropriate antidiuretic hormone (SIADH).	3.58	2	0	benzazepine	aquaretic; vasopressin receptor antagonist
tezosentan tezosentan: structure in first source	2.04	1	0
sabarubicin sabarubicin: structure given in first source	2.04	1	0
moxifloxacin Moxifloxacin: A fluoroquinolone that acts as an inhibitor of DNA TOPOISOMERASE II and is used as a broad-spectrum antibacterial agent.. moxifloxacin : A quinolone that consists of 4-oxo-1,4-dihydroquinoline-3-carboxylic acid bearing a cyclopropyl substituent at position 1, a fluoro substitiuent at position 6, a (4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl group at position 7 and a methoxy substituent at position 8. A member of the fluoroquinolone class of antibacterial agents.	3.58	2	0	aromatic ether; cyclopropanes; fluoroquinolone antibiotic; pyrrolidinopiperidine; quinolinemonocarboxylic acid; quinolone antibiotic; quinolone	antibacterial drug
pralnacasan pralnacasan: NSAID, ICE inhibitor & metastasis inhibitor; RN & structure in first source	3.23	1	0
clevidipine clevidipine: a calcium channel blocker and antihypertensive agent; structure in first source	3.58	2	0	dihydropyridine
solifenacin [no description available]	3.58	2	0	isoquinolines
dexmethylphenidate dexmethylphenidate : A methyl phenyl(piperidin-2-yl)acetate in which both stereocentres have R configuration. It is the active enantiomer in the racemic drug methylphenidate.	3.23	1	0	methyl phenyl(piperidin-2-yl)acetate	adrenergic agent
xamoterol Xamoterol: A phenoxypropanolamine derivative that is a selective beta-1-adrenergic agonist.	2.04	1	0	morpholines
naproxen Naproxen: An anti-inflammatory agent with analgesic and antipyretic properties. Both the acid and its sodium salt are used in the treatment of rheumatoid arthritis and other rheumatic or musculoskeletal disorders, dysmenorrhea, and acute gout.. naproxen : A methoxynaphthalene that is 2-methoxynaphthalene substituted by a carboxy ethyl group at position 6. Naproxen is a non-steroidal anti-inflammatory drug commonly used for the reduction of pain, fever, inflammation and stiffness caused by conditions such as osteoarthritis, kidney stones, rheumatoid arthritis, psoriatic arthritis, gout, ankylosing spondylitis, menstrual cramps, tendinitis, bursitis, and for the treatment of primary dysmenorrhea. It works by inhibiting both the COX-1 and COX-2 enzymes.	3.56	2	0	methoxynaphthalene; monocarboxylic acid	antipyretic; cyclooxygenase 1 inhibitor; cyclooxygenase 2 inhibitor; drug allergen; environmental contaminant; gout suppressant; non-narcotic analgesic; non-steroidal anti-inflammatory drug; xenobiotic
cinacalcet cinacalcet : A secondary amino compound that is (1R)-1-(naphthalen-1-yl)ethanamine in which one of the hydrogens attached to the nitrogen is substituted by a 3-[3-(trifluoromethyl)phenyl]propyl group.	3.23	1	0	(trifluoromethyl)benzenes; naphthalenes; secondary amino compound	calcimimetic; P450 inhibitor
lubiprostone [no description available]	3.23	1	0
telbivudine [no description available]	3.23	1	0	pyrimidine 2'-deoxyribonucleoside	antiviral drug; EC 2.7.7.49 (RNA-directed DNA polymerase) inhibitor
asenapine asenapine : A racemate consisting of equal amounts of (R,R)- and (S,S)-asenapine. Used as its maleate salt for the acute treatment of schizophrenia and acute treatment of manic or mixed episodes associated with bipolar I disorder with or without psychotic features.. (S,S)-asenapine : A 5-chloro-2-methyl-2,3,3a,12b-tetrahydrodibenzo[2,3:6,7]oxepino[4,5-c]pyrrole in which both of the stereocentres have S configuration.	2.08	1	0	5-chloro-2-methyl-2,3,3a,12b-tetrahydrodibenzo[2,3:6,7]oxepino[4,5-c]pyrrole
abanoquil [no description available]	2.04	1	0
paromomycin Paromomycin: An aminoglycoside antibacterial and antiprotozoal agent produced by species of STREPTOMYCES.. paromomycin : An amino cyclitol glycoside that is the 1-O-(2-amino-2-deoxy-alpha-D-glucopyranoside) and the 3-O-(2,6-diamino-2,6-dideoxy-beta-L-idopyranosyl)-beta-D-ribofuranoside of 4,6-diamino-2,3-dihydroxycyclohexane (the 1R,2R,3S,4R,6S diastereoisomer). It is obtained from various Streptomyces species. A broad-spectrum antibiotic, it is used (generally as the sulfate salt) for the treatment of acute and chronic intestinal protozoal infections, but is not effective for extraintestinal protozoal infections. It is also used as a therapeutic against visceral leishmaniasis.	3.23	1	0	amino cyclitol glycoside; aminoglycoside antibiotic	anthelminthic drug; antibacterial drug; antiparasitic agent; antiprotozoal drug
anidulafungin Anidulafungin: Echinocandin antifungal agent that is used in the treatment of CANDIDEMIA and CANDIDIASIS.. anidulafungin : A semisynthetic echinocandin anti-fungal drug. It is active against Aspergillus and Candida species and is used for the treatment of invasive candidiasis.	3.58	2	0	antibiotic antifungal drug; azamacrocycle; echinocandin; heterodetic cyclic peptide; semisynthetic derivative
17 alpha-hydroxyprogesterone caproate 17 alpha-Hydroxyprogesterone Caproate: Hydroxyprogesterone derivative that acts as a PROGESTIN and is used to reduce the risk of recurrent MISCARRIAGE and of PREMATURE BIRTH. It is also used in combination with ESTROGEN in the management of MENSTRUATION DISORDERS.	3.23	1	0	corticosteroid hormone
chloropent chloropent: RN given refers to sulfuric acid magnesium salt combination of sodium pentobarbital & chloral hydrate	2.05	1	0
varenicline Varenicline: A benzazepine derivative that functions as an ALPHA4-BETA2 NICOTINIC RECEPTOR partial agonist. It is used for SMOKING CESSATION.. varenicline : An organic heterotetracyclic compound that acts as a partial agonist for nicotinic cholinergic receptors and is used (in the form of its tartate salt) as an aid to giving up smoking.	3.23	1	0
angiotensin ii Giapreza: injectable form of angiotensin II used to increase blood pressure in adult patients with septic or other distributive shock. Ile(5)-angiotensin II : An angiotensin II that acts on the central nervous system (PDB entry: 1N9V).	3.8	2	1	amino acid zwitterion; angiotensin II	human metabolite
fiduxosin fiduxosin: fiduxosin (ABT-980) is the (3aR,9bR)-isomer; structure in first source	3.23	1	0
atropine tropan-3alpha-yl 3-hydroxy-2-phenylpropanoate : A tropane alkaloid that is (1R,5)-8-methyl-8-azabicyclo[3.2.1]octane substituted by a (3-hydroxy-2-phenylpropanoyl)oxy group at position 3.	11.95	73	11
ropivacaine Ropivacaine: An anilide used as a long-acting local anesthetic. It has a differential blocking effect on sensory and motor neurons.. ropivacaine : The piperidinecarboxamide obtained by the formal condensation of N-propylpipecolic acid and 2,6-dimethylaniline.. (S)-ropivacaine : A piperidinecarboxamide-based amide-type local anaesthetic (amide caine) in which (S)-N-propylpipecolic acid and 2,6-dimethylaniline are combined to form the amide bond.	2.43	2	0	piperidinecarboxamide; ropivacaine	local anaesthetic
erlotinib [no description available]	3.23	1	0	aromatic ether; quinazolines; secondary amino compound; terminal acetylenic compound	antineoplastic agent; epidermal growth factor receptor antagonist; protein kinase inhibitor
antalarmin antalarmin : A pyrrolopyrimidine that is 7H-pyrrolo[2,3-d]pyrimidin-4-amine which is substituted by methyl groups at positions 2, 5, and 6, by a mesityl group at position 7, and in which the amino substituent at position 4 has been substituted by ethyl and butyl groups. It is an antagonist of corticotropin-releasing factor 1 (CRF-1) receptors (Ki = 1 nM).	2.01	1	0	pyrrolopyrimidine; tertiary amino compound	corticotropin-releasing factor receptor antagonist
esketamine esketamine : The S- (more active) enantiomer of ketamine.	2.6	1	0	ketamine	analgesic; intravenous anaesthetic; NMDA receptor antagonist
melagatran [no description available]	2.04	1	0	azetidines; carboxamidine; dicarboxylic acid monoamide; non-proteinogenic alpha-amino acid; secondary amino compound	anticoagulant; EC 3.4.21.5 (thrombin) inhibitor; serine protease inhibitor
etravirine [no description available]	3.23	1	0	aminopyrimidine; aromatic ether; dinitrile; organobromine compound	antiviral agent; HIV-1 reverse transcriptase inhibitor
dronedarone Dronedarone: A non-iodinated derivative of amiodarone that is used for the treatment of ARRHYTHMIA.. dronedarone : A member of the class of 1-benzofurans used for the treatment of cardiac arrhythmias.	3.23	1	0	1-benzofurans; aromatic ether; aromatic ketone; sulfonamide; tertiary amino compound	anti-arrhythmia drug; environmental contaminant; xenobiotic
tesaglitazar tesaglitazar: structure in first source	2.04	1	0
ramelteon ramelteon: melatonin MT1/MT2 receptor agonist	3.23	1	0	indanes
lapatinib [no description available]	3.23	1	0	furans; organochlorine compound; organofluorine compound; quinazolines	antineoplastic agent; tyrosine kinase inhibitor
darunavir Darunavir: An HIV PROTEASE INHIBITOR that is used in the treatment of AIDS and HIV INFECTIONS. Due to the emergence of ANTIVIRAL DRUG RESISTANCE when used alone, it is administered in combination with other ANTI-HIV AGENTS.. darunavir : An N,N-disubstituted benzenesulfonamide bearing an unsubstituted amino group at the 4-position, used for the treatment of HIV infection. A second-generation HIV protease inhibitor, darunavir was designed to form robust interactions with the protease enzyme from many strains of HIV, including those from treatment-experienced patients with multiple resistance mutations to other protease inhibitors.	3.23	1	0	carbamate ester; furofuran; sulfonamide	antiviral drug; HIV protease inhibitor
deferasirox Deferasirox: A triazole and benzoate derivative that acts as a selective iron chelator. It is used in the management of chronic IRON OVERLOAD due to blood transfusion or non-transfusion dependent THALASSEMIA.. deferasirox : A member of the class of triazoles, deferasirox is 1,2,4-triazole substituted by a 4-carboxyphenyl group at position 1 and by 2-hydroxyphenyl groups at positions 3 and 5. An orally active iron chelator, it is used to manage chronic iron overload in patients receiving long-term blood transfusions.	3.23	1	0	benzoic acids; monocarboxylic acid; phenols; triazoles	iron chelator
bms204352 BMS204352: a calcium-sensitive opener of maxi-K potassium channels; structure in first source	2.04	1	0
fosfluconazole fosfluconazole: prodrug of fluconazole	2.04	1	0	conazole antifungal drug; triazole antifungal drug; triazoles	prodrug
tbc-11251 sitaxsentan: endothelin A receptor antagonist; structure in first source	3.23	1	0	benzodioxoles
tolvaptan [no description available]	3.23	1	0	benzazepine; benzenedicarboxamide	aquaretic; vasopressin receptor antagonist
sorafenib [no description available]	3.23	1	0	(trifluoromethyl)benzenes; aromatic ether; monochlorobenzenes; phenylureas; pyridinecarboxamide	angiogenesis inhibitor; anticoronaviral agent; antineoplastic agent; EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor; ferroptosis inducer; tyrosine kinase inhibitor
lenalidomide [no description available]	3.23	1	0	aromatic amine; dicarboximide; isoindoles; piperidones	angiogenesis inhibitor; antineoplastic agent; immunomodulator
regadenoson [no description available]	3.23	1	0	purine nucleoside
lacosamide Lacosamide: An acetamide derivative that acts as a blocker of VOLTAGE-GATED SODIUM CHANNELS. It is used as an anticonvulsant, for adjunctive or monotherapy, in the treatment of PARTIAL SEIZURES.	3.23	1	0	N-acyl-amino acid
cp 101,606 traxoprodil mesylate: a selective NMDA antagonist; structure given in first source	2.04	1	0
estradiol 3-benzoate 17beta-estradiol 3-benzoate : A benzoate ester resulting from the formal condensation of benzoic acid with the phenolic hydroxy group of 17beta-estradiol.	2.02	1	0	17beta-hydroxy steroid; benzoate ester	estrogen receptor agonist; xenoestrogen
cortisone [no description available]	1.94	1	0	11-oxo steroid; 17alpha-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(4) steroid; C21-steroid; glucocorticoid; primary alpha-hydroxy ketone; tertiary alpha-hydroxy ketone	human metabolite; mouse metabolite
vincaleukoblastine [no description available]	3.23	1	0	acetate ester; indole alkaloid fundamental parent; methyl ester; organic heteropentacyclic compound; organic heterotetracyclic compound; tertiary alcohol; tertiary amino compound; vinca alkaloid	antineoplastic agent; immunosuppressive agent; microtubule-destabilising agent; plant metabolite
benzarone benzarone: antihemorrhagic agent; structure	3.23	1	0	1-benzofurans
hydroxydione 5beta-dihydrodeoxycorticosterone : A 3-oxo-5beta-steroid formed from 11-deoxycorticosterone by reduction across the C4-C5 double bond.	1.94	1	0	20-oxo steroid; 21-hydroxy steroid; 3-oxo-5beta-steroid; primary alpha-hydroxy ketone	human xenobiotic metabolite
nsc-89199 estramustine phosphate : A steroid phosphate which is the 17-O-phospho derivative of estramustine.	2.04	1	0	carbamate ester; organochlorine compound; steroid phosphate
estramustine Estramustine: A nitrogen mustard linked to estradiol, usually as phosphate; used to treat prostatic neoplasms; also has radiation protective properties.. estramustine : A carbamate ester obtained by the formal condensation of the hydroxy group of 17beta-estradiol with the carboxy group of bis(2-chloroethyl)carbamic acid.	3.56	2	0	17beta-hydroxy steroid; carbamate ester; organochlorine compound	alkylating agent; antineoplastic agent; radiation protective agent
phenethicillin phenethicillin: minor descriptor (85); major descriptor (63-84); on-line search PENICILLIN, PHENOXYMETHYL/AA (66-85); Index Medicus search PHENETHICILLIN (63-84); RN given refers to (2S-(2alpha,5alpha,6beta))-isomer. phenethicillin : A penicillin in which the substituent at position 6 of the penam ring is a 2-phenoxypropanamido group.	2.04	1	0	penicillin allergen; penicillin
acivicin [no description available]	2.04	1	0	isoxazoles; non-proteinogenic L-alpha-amino acid; organochlorine compound	antileishmanial agent; antimetabolite; antimicrobial agent; antineoplastic agent; EC 2.3.2.2 (gamma-glutamyltransferase) inhibitor; glutamine antagonist; metabolite
bortezomib [no description available]	3.58	2	0	amino acid amide; L-phenylalanine derivative; pyrazines	antineoplastic agent; antiprotozoal drug; protease inhibitor; proteasome inhibitor
ritonavir Ritonavir: An HIV protease inhibitor that works by interfering with the reproductive cycle of HIV. It also inhibits CYTOCHROME P-450 CYP3A.. ritonavir : An L-valine derivative that is L-valinamide in which alpha-amino group has been acylated by a [(2-isopropyl-1,3-thiazol-4-yl)methyl]methylcarbamoyl group and in which a hydrogen of the carboxamide amino group has been replaced by a (2R,4S,5S)-4-hydroxy-1,6-diphenyl-5-{[(1,3-thiazol-5-ylmethoxy)carbonyl]amino}hexan-2-yl group. A CYP3A inhibitor and antiretroviral drug from the protease inhibitor class used to treat HIV infection and AIDS, it is often used as a fixed-dose combination with another protease inhibitor, lopinavir. Also used in combination with dasabuvir sodium hydrate, ombitasvir and paritaprevir (under the trade name Viekira Pak) for treatment of chronic hepatitis C virus genotype 1 infection as well as cirrhosis of the liver.	3.56	2	0	1,3-thiazoles; carbamate ester; carboxamide; L-valine derivative; ureas	antiviral drug; environmental contaminant; HIV protease inhibitor; xenobiotic
oxytocin Oxytocin: A nonapeptide hormone released from the neurohypophysis (PITUITARY GLAND, POSTERIOR). It differs from VASOPRESSIN by two amino acids at residues 3 and 8. Oxytocin acts on SMOOTH MUSCLE CELLS, such as causing UTERINE CONTRACTIONS and MILK EJECTION.. oxytocin : A cyclic nonapeptide hormone with amino acid sequence CYIQNCPLG that also acts as a neurotransmitter in the brain; the principal uterine-contracting and milk-ejecting hormone of the posterior pituitary. Together with the neuropeptide vasopressin, it is believed to influence social cognition and behaviour.	4.31	6	0	heterodetic cyclic peptide; peptide hormone	oxytocic; vasodilator agent
ouabain Ouabain: A cardioactive glycoside consisting of rhamnose and ouabagenin, obtained from the seeds of Strophanthus gratus and other plants of the Apocynaceae; used like DIGITALIS. It is commonly used in cell biological studies as an inhibitor of the NA(+)-K(+)-EXCHANGING ATPASE.. cardiac glycoside : Steroid lactones containing sugar residues that act on the contractile force of the cardiac muscles.. ouabain : A steroid hormone that is a multi-hydroxylated alpha-L-rhamnosyl cardenoloide. It binds to and inhibits the plasma membrane Na(+)/K(+)-ATPase (sodium pump). It has been isolated naturally from Strophanthus gratus.	1.96	1	0	11alpha-hydroxy steroid; 14beta-hydroxy steroid; 5beta-hydroxy steroid; alpha-L-rhamnoside; cardenolide glycoside; steroid hormone	anti-arrhythmia drug; cardiotonic drug; EC 2.3.3.1 [citrate (Si)-synthase] inhibitor; EC 3.1.3.41 (4-nitrophenylphosphatase) inhibitor; EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor; EC 3.6.3.9 (Na(+)/K(+)-transporting ATPase) inhibitor; ion transport inhibitor; plant metabolite
pentostatin Pentostatin: A potent inhibitor of ADENOSINE DEAMINASE. The drug induces APOPTOSIS of LYMPHOCYTES, and is used in the treatment of many lymphoproliferative malignancies, particularly HAIRY CELL LEUKEMIA. It is also synergistic with some other antineoplastic agents and has immunosuppressive activity.. pentostatin : A member of the class of coformycins that is coformycin in which the hydroxy group at position 2' is replaced with a hydrogen. It is a drug used for the treatment of hairy cell leukaemia.	3.56	2	0	coformycins	antimetabolite; antineoplastic agent; Aspergillus metabolite; bacterial metabolite; EC 3.5.4.4 (adenosine deaminase) inhibitor
strychnine Strychnine: An alkaloid found in the seeds of STRYCHNOS NUX-VOMICA. It is a competitive antagonist at glycine receptors and thus a convulsant. It has been used as an analeptic, in the treatment of nonketotic hyperglycinemia and sleep apnea, and as a rat poison.. strychnine : A monoterpenoid indole alkaloid that is strychnidine bearing a keto substituent at the 10-position.	2.38	2	0	monoterpenoid indole alkaloid; organic heteroheptacyclic compound	avicide; cholinergic antagonist; glycine receptor antagonist; neurotransmitter agent; rodenticide
quinidine Quinidine: An optical isomer of quinine, extracted from the bark of the CHINCHONA tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular ACTION POTENTIALS, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission.. quinidine : A cinchona alkaloid consisting of cinchonine with the hydrogen at the 6-position of the quinoline ring substituted by methoxy.	3.84	3	0	cinchona alkaloid	alpha-adrenergic antagonist; anti-arrhythmia drug; antimalarial; drug allergen; EC 1.14.13.181 (13-deoxydaunorubicin hydroxylase) inhibitor; EC 3.6.3.44 (xenobiotic-transporting ATPase) inhibitor; muscarinic antagonist; P450 inhibitor; potassium channel blocker; sodium channel blocker
meropenem Meropenem: A thienamycin derivative antibacterial agent that is more stable to renal dehydropeptidase I than IMIPENEM, but does not need to be given with an enzyme inhibitor such as CILASTATIN. It is used in the treatment of bacterial infections, including infections in immunocompromised patients.. meropenem : A carbapenemcarboxylic acid in which the azetidine and pyrroline rings carry 1-hydroxymethyl and in which the azetidine and pyrroline rings carry 1-hydroxymethyl and 5-(dimethylcarbamoyl)pyrrolidin-3-ylthio substituents respectively.	3.84	3	0	alpha,beta-unsaturated monocarboxylic acid; carbapenemcarboxylic acid; organic sulfide; pyrrolidinecarboxamide	antibacterial agent; antibacterial drug; drug allergen
griseofulvin Griseofulvin: An antifungal agent used in the treatment of TINEA infections.. griseofulvin : An oxaspiro compound produced by Penicillium griseofulvum. It is used by mouth as an antifungal drug for infections involving the scalp, hair, nails and skin that do not respond to topical treatment.	3.56	2	0	1-benzofurans; antibiotic antifungal drug; benzofuran antifungal drug; organochlorine compound; oxaspiro compound	antibacterial agent; Penicillium metabolite
cefoxitin Cefoxitin: A semisynthetic cephamycin antibiotic resistant to beta-lactamase.. cefoxitin : A semisynthetic cephamycin antibiotic which, in addition to the methoxy group at the 7alpha position, has 2-thienylacetamido and carbamoyloxymethyl side-groups. It is resistant to beta-lactamase.	3.84	3	0	beta-lactam antibiotic allergen; cephalosporin; cephamycin; semisynthetic derivative	antibacterial drug
digitoxin Digitoxin: A cardiac glycoside sometimes used in place of DIGOXIN. It has a longer half-life than digoxin; toxic effects, which are similar to those of digoxin, are longer lasting. (From Martindale, The Extra Pharmacopoeia, 30th ed, p665). digitoxin : A cardenolide glycoside in which the 3beta-hydroxy group of digitoxigenin carries a 2,6-dideoxy-beta-D-ribo-hexopyranosyl-(1->4)-2,6-dideoxy-beta-D-ribo-hexopyranosyl-(1->4)-2,6-dideoxy-beta-D-ribo-hexopyranosyl trisaccharide chain.	2.04	1	0	cardenolide glycoside	EC 3.6.3.9 (Na(+)/K(+)-transporting ATPase) inhibitor
saquinavir Saquinavir: An HIV protease inhibitor which acts as an analog of an HIV protease cleavage site. It is a highly specific inhibitor of HIV-1 and HIV-2 proteases, and also inhibits CYTOCHROME P-450 CYP3A.. saquinavir : An aspartic acid derivative obtained by formal condensation of the primary amino group of (2S,3R)-4-[(3S,4aS,8aS)-3-(tert-butylcarbamoyl)octahydroisoquinolin-2(1H)-yl]-3-hydroxy-1-phenylbutan-2-ylamine with the carboxy group of N(2)(-quinolin-2-ylcarbonyl)-L-asparagine. An inhibitor of HIV-1 protease.	3.84	3	0	L-asparagine derivative; quinolines	antiviral drug; HIV protease inhibitor
pentazocine Pentazocine: The first mixed agonist-antagonist analgesic to be marketed. It is an agonist at the kappa and sigma opioid receptors and has a weak antagonist action at the mu receptor. (From AMA Drug Evaluations Annual, 1991, p97)	4.72	7	1	benzazocine
pancuronium Pancuronium: A bis-quaternary steroid that is a competitive nicotinic antagonist. As a neuromuscular blocking agent it is more potent than CURARE but has less effect on the circulatory system and on histamine release.. pancuronium : A steroid ester in which a 5alpha-androstane skeleton is C-3alpha- and C-17beta-disubstituted with acetoxy groups and 2beta- and 16beta-disubstituted with 1-methylpiperidinium-1-yl groups. It is a non-depolarizing curare-mimetic muscle relaxant.	6.62	9	2	acetate ester; steroid ester	cholinergic antagonist; muscle relaxant; nicotinic antagonist
rocuronium Rocuronium: An androstanol non-depolarizing neuromuscular blocking agent. It has a mono-quaternary structure and is a weaker nicotinic antagonist than PANCURONIUM.. rocuronium : A 5alpha-androstane compound having 3alpha-hydroxy-, 17beta-acetoxy-, 2beta-morpholino- and 16beta-N-allyllyrrolidinium substituents.	2.76	3	0	3alpha-hydroxy steroid; acetate ester; androstane; morpholines; quaternary ammonium ion; tertiary amino compound	drug allergen; muscle relaxant; neuromuscular agent
abacavir abacavir: a carbocyclic nucleoside with potent selective anti-HIV activity. abacavir : A 2,6-diaminopurine that is (1S)-cyclopent-2-en-1-ylmethanol in which the pro-R hydrogen at the 4-position is substituted by a 2-amino-6-(cyclopropylamino)-9H-purin-9-yl group. A nucleoside analogue reverse transcriptase inhibitor (NRTI) with antiretroviral activity against HIV, it is used (particularly as the sulfate) with other antiretrovirals in combination therapy of HIV infection.	3.58	2	0	2,6-diaminopurines	antiviral drug; drug allergen; HIV-1 reverse transcriptase inhibitor
netilmicin Netilmicin: Semisynthetic 1-N-ethyl derivative of SISOMYCIN, an aminoglycoside antibiotic with action similar to gentamicin, but less ear and kidney toxicity.	2.43	2	0
miglitol [no description available]	3.58	2	0	piperidines
metyrosine alpha-methyl-L-tyrosine : An L-tyrosine derivative that consists of L-tyrosine bearing an additional methyl substituent at position 2. An inhibitor of the enzyme tyrosine 3-monooxygenase, and consequently of the synthesis of catecholamines. It is used to control the symptoms of excessive sympathetic stimulation in patients with pheochromocytoma.	3.56	2	0	L-tyrosine derivative; non-proteinogenic L-alpha-amino acid	antihypertensive agent; EC 1.14.16.2 (tyrosine 3-monooxygenase) inhibitor
rocuronium bromide rocuronium bromide : The organic bromide salt of a 5alpha androstane compound having 3alpha-hydroxy-, 17beta-acetoxy-, 2beta-morpholino- and 16beta-N-allyllyrrolidinium substituents.	2.02	1	0	organic bromide salt; quaternary ammonium salt	muscle relaxant; neuromuscular agent
terconazole terconazole: structure & RN for (cis)-isomer from first source. terconazole : A racemate consisting of equimolar amounts of (2R,4S)- and (2S,4R)-terconazole. It has broad-spectrum antifungal activitiy and is used for the treatment of vaginal yeast infections (Candida).. (2R,4S)-terconazole : A 1-(4-{[2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)-4-isopropylpiperazine in which positions 2 and 4 of the 1,3-dioxolane moiety have R and S configuration, respectively.	2.02	1	0	1-(4-{[2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)-4-isopropylpiperazine
bacampicillin bacampicillin: ester prodrug that is hydrolyzed to ampicillin after its absorption from the gastrointestinal tract; RN given refers to parent cpd; structure. bacampicillin : A penicillanic acid ester that is the 1-ethoxycarbonyloxyethyl ester of ampicillin. It is a semi-synthetic, microbiologically inactive prodrug of ampicillin.	2.02	1	0	penicillanic acid ester	prodrug
linezolid [no description available]	3.58	2	0	acetamides; morpholines; organofluorine compound; oxazolidinone	antibacterial drug; protein synthesis inhibitor
n-formylmethionine leucyl-phenylalanine N-Formylmethionine Leucyl-Phenylalanine: A formylated tripeptide originally isolated from bacterial filtrates that is positively chemotactic to polymorphonuclear leucocytes, and causes them to release lysosomal enzymes and become metabolically activated.. N-formyl-L-methionyl-L-leucyl-L-phenylalanine : A tripeptide composed of L-Met, L-Leu and L-Phe in a linear sequence with a formyl group at the amino terminus. It acts as a potent inducer of leucocyte chemotaxis and macrophage activator as well as a ligand for the FPR receptor.	3.09	5	0	tripeptide
clindamycin phosphate [no description available]	3.23	1	0
eplerenone Eplerenone: A spironolactone derivative and selective ALDOSTERONE RECEPTOR antagonist that is used in the management of HYPERTENSION and CONGESTIVE HEART FAILURE, post-MYOCARDIAL INFARCTION.	3.23	1	0	3-oxo-Delta(4) steroid; epoxy steroid; gamma-lactone; methyl ester; organic heteropentacyclic compound; oxaspiro compound; steroid acid ester	aldosterone antagonist; antihypertensive agent
tolterodine [no description available]	3.58	2	0	tertiary amine	antispasmodic drug; muscarinic antagonist; muscle relaxant
erythromycin ethylsuccinate Erythromycin Ethylsuccinate: A macrolide antibiotic, produced by Streptomyces erythreus. This compound is an ester of erythromycin base and succinic acid. It acts primarily as a bacteriostatic agent. In sensitive organisms, it inhibits protein synthesis by binding to 50S ribosomal subunits. This binding process inhibits peptidyl transferase activity and interferes with translocation of amino acids during translation and assembly of proteins.. erythromycin ethylsuccinate : A erythromycin derivative that is erythromycin A in which the hydroxy group at position 3R is substituted by a (4-ethoxy-4-oxobutanoyl)oxy group. It is used for the treatment of a wide variety of bacterial infections.	2.02	1	0	cyclic ketone; erythromycin derivative; ethyl ester; succinate ester
amcinonide amcinonide: structure	2.02	1	0	11beta-hydroxy steroid; 20-oxo steroid; 3-oxo-Delta(1),Delta(4)-steroid; acetate ester; corticosteroid; fluorinated steroid; spiroketal	anti-inflammatory drug
betamethasone acetate [no description available]	2.02	1	0	11beta-hydroxy steroid; 17alpha-hydroxy steroid; 20-oxo steroid; 3-oxo-Delta(1),Delta(4)-steroid; acetate ester; fluorinated steroid; steroid ester; tertiary alpha-hydroxy ketone
darifenacin darifenacin : 2-[(3S)-1-Ethylpyrrolidin-3-yl]-2,2-diphenylacetamide in which one of the hydrogens at the 2-position of the ethyl group is substituted by a 2,3-dihydro-1-benzofuran-5-yl group. It is a selective antagonist for the M3 muscarinic acetylcholine receptor, which is primarily responsible for bladder muscle contractions, and is used as the hydrobromide salt in the management of urinary incontinence.	3.58	2	0	1-benzofurans; monocarboxylic acid amide; pyrrolidines	antispasmodic drug; muscarinic antagonist
fluticasone propionate fluticasone propionate : A trifluorinated corticosteroid that consists of 6alpha,9-difluoro-11beta,17alpha-dihydroxy-17beta-{[(fluoromethyl)sulfanyl]carbonyl}-16-methyl-3-oxoandrosta-1,4-diene bearing a propionyl substituent at position 17; has anti-inflammatory, anti-asthmatic and anti-allergic activity.	2.04	1	0	11beta-hydroxy steroid; 3-oxo-Delta(1),Delta(4)-steroid; corticosteroid; fluorinated steroid; propanoate ester; steroid ester; thioester	adrenergic agent; anti-allergic agent; anti-asthmatic drug; anti-inflammatory drug; bronchodilator agent; dermatologic drug
acarbose [no description available]	2.43	2	0	amino cyclitol; glycoside
tretinoin Tretinoin: An important regulator of GENE EXPRESSION during growth and development, and in NEOPLASMS. Tretinoin, also known as retinoic acid and derived from maternal VITAMIN A, is essential for normal GROWTH; and EMBRYONIC DEVELOPMENT. An excess of tretinoin can be teratogenic. It is used in the treatment of PSORIASIS; ACNE VULGARIS; and several other SKIN DISEASES. It has also been approved for use in promyelocytic leukemia (LEUKEMIA, PROMYELOCYTIC, ACUTE).. retinoic acid : A retinoid consisting of 3,7-dimethylnona-2,4,6,8-tetraenoic acid substituted at position 9 by a 2,6,6-trimethylcyclohex-1-en-1-yl group (geometry of the four exocyclic double bonds is not specified).. all-trans-retinoic acid : A retinoic acid in which all four exocyclic double bonds have E- (trans-) geometry.	3.56	2	0	retinoic acid; vitamin A	anti-inflammatory agent; antineoplastic agent; antioxidant; AP-1 antagonist; human metabolite; keratolytic drug; retinoic acid receptor agonist; retinoid X receptor agonist; signalling molecule
retinol Vitamin A: Retinol and derivatives of retinol that play an essential role in metabolic functioning of the retina, the growth of and differentiation of epithelial tissue, the growth of bone, reproduction, and the immune response. Dietary vitamin A is derived from a variety of CAROTENOIDS found in plants. It is enriched in the liver, egg yolks, and the fat component of dairy products.. vitamin A : Any member of a group of fat-soluble retinoids produced via metabolism of provitamin A carotenoids that exhibit biological activity against vitamin A deficiency. Vitamin A is involved in immune function, vision, reproduction, and cellular communication.. all-trans-retinol : A retinol in which all four exocyclic double bonds have E- (trans-) geometry.. retinol : A retinoid consisting of 3,7-dimethylnona-2,4,6,8-tetraen-1-ol substituted at position 9 by a 2,6,6-trimethylcyclohex-1-en-1-yl group (geometry of the four exocyclic double bonds is not specified).	3.23	1	0	retinol; vitamin A	human metabolite; mouse metabolite; plant metabolite
tacrolimus Tacrolimus: A macrolide isolated from the culture broth of a strain of Streptomyces tsukubaensis that has strong immunosuppressive activity in vivo and prevents the activation of T-lymphocytes in response to antigenic or mitogenic stimulation in vitro.. tacrolimus (anhydrous) : A macrolide lactam containing a 23-membered lactone ring, originally isolated from the fermentation broth of a Japanese soil sample that contained the bacteria Streptomyces tsukubaensis.	3.58	2	0	macrolide lactam	bacterial metabolite; immunosuppressive agent
cerivastatin cerivastatin: cerivastatin is the ((E)-(+))-isomer; structure given in first source. cerivastatin : (3R,5S)-3,5-dihydroxyhept-6-enoic acid in which the (7E)-hydrogen is substituted by a 4-(4-fluorophenyl)-2,6-diisopropyl-5-(methoxymethyl)pyridin-3-yl group. Formerly used (as its sodium salt) to lower cholesterol and prevent cardiovascular disease, it was withdrawn from the market worldwide in 2001 following reports of a severe form of muscle toxicity.	2.04	1	0	dihydroxy monocarboxylic acid; pyridines; statin (synthetic)
rosuvastatin rosuvastatin : A dihydroxy monocarboxylic acid that is (6E)-7-{4-(4-fluorophenyl)-2-[methyl(methylsulfonyl)amino]-6-(propan-2-yl)pyrimidin-5-yl} hept-6-enoic acid carrying two hydroxy substituents at positions 3 and 5 (the 3R,5S-diastereomer).	3.58	2	0	dihydroxy monocarboxylic acid; monofluorobenzenes; pyrimidines; statin (synthetic); sulfonamide	anti-inflammatory agent; antilipemic drug; cardioprotective agent; CETP inhibitor; environmental contaminant; xenobiotic
cocaine Cocaine: An alkaloid ester extracted from the leaves of plants including coca. It is a local anesthetic and vasoconstrictor and is clinically used for that purpose, particularly in the eye, ear, nose, and throat. It also has powerful central nervous system effects similar to the amphetamines and is a drug of abuse. Cocaine, like amphetamines, acts by multiple mechanisms on brain catecholaminergic neurons; the mechanism of its reinforcing effects is thought to involve inhibition of dopamine uptake.. cocaine : A tropane alkaloid obtained from leaves of the South American shrub Erythroxylon coca.	8.59	9	0	benzoate ester; methyl ester; tertiary amino compound; tropane alkaloid	adrenergic uptake inhibitor; central nervous system stimulant; dopamine uptake inhibitor; environmental contaminant; local anaesthetic; mouse metabolite; plant metabolite; serotonin uptake inhibitor; sodium channel blocker; sympathomimetic agent; vasoconstrictor agent; xenobiotic
mycophenolic acid Mycophenolic Acid: Compound derived from Penicillium stoloniferum and related species. It blocks de novo biosynthesis of purine nucleotides by inhibition of the enzyme inosine monophosphate dehydrogenase (IMP DEHYDROGENASE). Mycophenolic acid exerts selective effects on the immune system in which it prevents the proliferation of T-CELLS, LYMPHOCYTES, and the formation of antibodies from B-CELLS. It may also inhibit recruitment of LEUKOCYTES to sites of INFLAMMATION.. mycophenolate : A monocarboxylic acid anion resulting from the removal of a proton from the carboxy group of mycophenolic acid.. mycophenolic acid : A member of the class of 2-benzofurans that is 2-benzofuran-1(3H)-one which is substituted at positions 4, 5, 6, and 7 by methyl, methoxy, (2E)-5-carboxy-3-methylpent-2-en-1-yl, and hydroxy groups, respectively. It is an antibiotic produced by Penicillium brevi-compactum, P. stoloniferum, P. echinulatum and related species. An immunosuppressant, it is widely used (partiularly as its sodium salt and as the 2-(morpholin-4-yl)ethyl ester prodrug, mycophenolate mofetil) to prevent tissue rejection following organ transplants and for the treatment of certain autoimmune diseases.	3.56	2	0	2-benzofurans; gamma-lactone; monocarboxylic acid; phenols	anticoronaviral agent; antimicrobial agent; antineoplastic agent; EC 1.1.1.205 (IMP dehydrogenase) inhibitor; environmental contaminant; immunosuppressive agent; mycotoxin; Penicillium metabolite; xenobiotic
mupirocin Mupirocin: A topically used antibiotic from a strain of Pseudomonas fluorescens. It has shown excellent activity against gram-positive staphylococci and streptococci. The antibiotic is used primarily for the treatment of primary and secondary skin disorders, nasal infections, and wound healing.. mupirocin : An alpha,beta-unsaturated ester resulting from the formal condensation of the alcoholic hydroxy group of 9-hydroxynonanoic acid with the carboxy group of (2E)-4-[(2S)-tetrahydro-2H-pyran-2-yl]-3-methylbut-2-enoic acid in which the tetrahydropyranyl ring is substituted at positions 3 and 4 by hydroxy groups and at position 5 by a {(2S,3S)-3-[(2S,3S)-3-hydroxybutan-2-yl]oxiran-2-yl}methyl group. Originally isolated from the Gram-negative bacterium Pseudomonas fluorescens, it is used as a topical antibiotic for the treatment of Gram-positive bacterial infections.	2.02	1	0	alpha,beta-unsaturated carboxylic ester; epoxide; monocarboxylic acid; oxanes; secondary alcohol; triol	antibacterial drug; bacterial metabolite; protein synthesis inhibitor
clindamycin Clindamycin: An antibacterial agent that is a semisynthetic analog of LINCOMYCIN.. clindamycin : A carbohydrate-containing antibiotic that is the semisynthetic derivative of lincomycin, a natural antibiotic.	3.58	2	0
fosfomycin Fosfomycin: An antibiotic produced by Streptomyces fradiae.. fosfomycin : A phosphonic acid having an (R,S)-1,2-epoxypropyl group attached to phosphorus.	3.84	3	0	epoxide; phosphonic acids	antimicrobial agent; EC 2.5.1.7 (UDP-N-acetylglucosamine 1-carboxyvinyltransferase) inhibitor
zithromax Azithromycin: A semi-synthetic macrolide antibiotic structurally related to ERYTHROMYCIN. It has been used in the treatment of Mycobacterium avium intracellulare infections, toxoplasmosis, and cryptosporidiosis.. azithromycin : A macrolide antibiotic useful for the treatment of bacterial infections.	3.84	3	0	macrolide antibiotic	antibacterial drug; environmental contaminant; xenobiotic
bms 214662 7-cyano-2,3,4,5-tetrahydro-1-(1H-imidazol-4-ylmethyl)-3-(phenylmethyl)-4-(2-thienylsulfonyl)-1H-1,4-benzodiazepine: a farnesyltransferase inhibitor; structure in first source. BMS-214662 : A member of the class of benzodiazepines that is 2,3,4,5-tetrahydro-1H-1,4-benzodiazepine substituted by (1H-imidazol-5-yl)methyl, benzyl, (thiophen-2-yl)sulfonyl, and cyano groups at positions 1, 3R, 4 and 7, respectively. It is a potent inhibitor of farnesyltransferase (IC50 = 1.35nM) which was under clinical development for the treatment of solid tumors.	2.04	1	0	benzenes; benzodiazepine; imidazoles; nitrile; sulfonamide; thiophenes	antineoplastic agent; apoptosis inducer; EC 2.5.1.58 (protein farnesyltransferase) inhibitor
octreotide [no description available]	3.23	1	0
eptifibatide [no description available]	3.58	2	0	homodetic cyclic peptide; macrocycle; organic disulfide	anticoagulant; platelet aggregation inhibitor
gs 4071 GS 4071: The acid form.. oseltamivir acid : A cyclohexenecarboxylic acid that is cyclohex-1-ene-1-carboxylic acid which is substituted at positions 3, 4, and 5 by pentan-3-yloxy, acetamido, and amino groups, respectively (the 3R,4R,5S enantiomer). An antiviral drug, it is used as the corresponding ethyl ester prodrug, oseltamivir, to slow the spread of influenza.	2.04	1	0	acetate ester; amino acid; cyclohexenecarboxylic acid; primary amino compound	antiviral drug; EC 3.2.1.18 (exo-alpha-sialidase) inhibitor; marine xenobiotic metabolite
decitabine [no description available]	3.58	2	0	2'-deoxyribonucleoside
sm 8668 Sch 39304: Sch 42427 is the active entantiomer of the antifungal agent Sch 39304 which consists of Sch 42426 & Sch 42427; Sch 42426, the (S,S)-isomer, is inactive	2.04	1	0
teniposide [no description available]	3.84	3	0	aromatic ether; beta-D-glucoside; cyclic acetal; furonaphthodioxole; gamma-lactone; monosaccharide derivative; phenols; thiophenes	antineoplastic agent; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor
troxacitabine troxacitabine: shows good anti-HIV activity without cytotoxicity	2.04	1	0	carbohydrate derivative; nucleobase-containing molecular entity
cefamandole Cefamandole: Semisynthetic wide-spectrum cephalosporin with prolonged action, probably due to beta-lactamase resistance. It is used also as the nafate.. cefamandole : A cephalosporin compound having (R)-mandelamido and N-methylthiotetrazole side-groups.	2.43	2	0	cephalosporin; semisynthetic derivative	antibacterial drug
dactinomycin Dactinomycin: A compound composed of a two CYCLIC PEPTIDES attached to a phenoxazine that is derived from STREPTOMYCES parvullus. It binds to DNA and inhibits RNA synthesis (transcription), with chain elongation more sensitive than initiation, termination, or release. As a result of impaired mRNA production, protein synthesis also declines after dactinomycin therapy. (From AMA Drug Evaluations Annual, 1993, p2015)	3.82	3	0	actinomycin	mutagen
tiazofurin tiazofurin: RN given refers to (beta-D)-isomer; structure given in first source. tiazofurine : A C-glycosyl compound that is 1,3-thiazole-4-carboxamide in which the hydrogen at position 2 has been replaced by a beta-D-ribofuranosyl group. It is metabolised to thiazole-4-carboxamide adenine dinucleotide (TAD), a selective inhibitor of inosine monophosphate dehydrogenase (IMP dehydrogenase).	2.04	1	0	1,3-thiazoles; C-glycosyl compound; monocarboxylic acid amide	antineoplastic agent; EC 1.1.1.205 (IMP dehydrogenase) inhibitor; prodrug
melphalan Melphalan: An alkylating nitrogen mustard that is used as an antineoplastic in the form of the levo isomer - MELPHALAN, the racemic mixture - MERPHALAN, and the dextro isomer - MEDPHALAN; toxic to bone marrow, but little vesicant action; potential carcinogen.. melphalan : A phenylalanine derivative comprising L-phenylalanine having [bis(2-chloroethyl)amino group at the 4-position on the phenyl ring.	3.84	3	0	L-phenylalanine derivative; nitrogen mustard; non-proteinogenic L-alpha-amino acid; organochlorine compound	alkylating agent; antineoplastic agent; carcinogenic agent; drug allergen; immunosuppressive agent
sitafloxacin [no description available]	2.04	1	0	fluoroquinolone antibiotic; quinolines; quinolone antibiotic
tenofovir tenofovir (anhydrous) : A member of the class of phosphonic acids that is methylphosphonic acid in which one of the methyl hydrogens is replaced by a [(2R)-1-(6-amino-9H-purin-9-yl)propan-2-yl]oxy group. An inhibitor of HIV-1 reverse transcriptase, the bis(isopropyloxycarbonyloxymethyl) ester (disoproxil ester) prodrug is used as the fumaric acid salt in combination therapy for the treatment of HIV infection.	3.58	2	0	nucleoside analogue; phosphonic acids	antiviral drug; drug metabolite; HIV-1 reverse transcriptase inhibitor
posaconazole [no description available]	3.23	1	0	aromatic ether; conazole antifungal drug; N-arylpiperazine; organofluorine compound; oxolanes; triazole antifungal drug; triazoles	trypanocidal drug
dibekacin Dibekacin: Analog of KANAMYCIN with antitubercular as well as broad-spectrum antimicrobial properties.. dibekacin : A kanamycin that is kanamycin B lacking the 3- and 4-hydroxy groups on the 2,6-diaminosugar ring.	2.04	1	0	kanamycins	antibacterial agent; protein synthesis inhibitor
micafungin Micafungin: A cyclic lipo-hexapeptide echinocandin antifungal agent that is used for the treatment and prevention of CANDIDIASIS.. micafungin : A cyclic hexapeptide echinocandin antibiotic which exerts its effect by inhibiting the synthesis of 1,3-beta-D-glucan, an integral component of the fungal cell wall. It is used as the sodium salt for the treatment of invasive candidiasis, and of aspergillosis in patients who are intolerant of other therapy.	3.58	2	0	antibiotic antifungal drug; echinocandin	antiinfective agent
riboflavin vitamin B2 : Any member of a group of vitamers that belong to the chemical structural class called flavins that exhibit biological activity against vitamin B2 deficiency. Symptoms associated with vitamin B2 deficiency include glossitis, seborrhea, angular stomaitis, cheilosis and photophobia. The vitamers include riboflavin and its phosphate derivatives (and includes their salt, ionised and hydrate forms).	3.23	1	0	flavin; vitamin B2	anti-inflammatory agent; antioxidant; cofactor; Escherichia coli metabolite; food colouring; fundamental metabolite; human urinary metabolite; mouse metabolite; photosensitizing agent; plant metabolite
sodium bicarbonate Sodium Bicarbonate: A white, crystalline powder that is commonly used as a pH buffering agent, an electrolyte replenisher, systemic alkalizer and in topical cleansing solutions.	3.23	1	0	one-carbon compound; organic sodium salt	antacid; food anticaking agent
arsenic trioxide Tetraarsenic Oxide: A form of As2O3 that exists as As4O6 in the solid state. It dissociates to As2O3 upon heating to the vapor phase above 800 degrees Celsius.	3.23	1	0	arsenic oxide	antineoplastic agent; insecticide
sch 22219 alclometasone dipropionate : A prednisolone compound having an alpha-chloro substituent at the 7-position, an alpha-methyl substituent at the 16-position and O-propanoyl groups at the 17- and 21-positions.	2.02	1	0	11beta-hydroxy steroid; 20-oxo steroid; 3-oxo-Delta(1),Delta(4)-steroid; chlorinated steroid; glucocorticoid; propanoate ester; steroid ester	anti-inflammatory drug
sr 90107 fondaparinux sodium : An organic sodium salt, being the decasodium salt of fondaparinux.	3.23	1	0
meglumine iodipamide [no description available]	3.23	1	0	organoammonium salt	radioopaque medium
isomethyleugenol Methylation: Addition of methyl groups. In histo-chemistry methylation is used to esterify carboxyl groups and remove sulfate groups by treating tissue sections with hot methanol in the presence of hydrochloric acid. (From Stedman, 25th ed)	2.35	2	0	isomethyleugenol
thyrotropin-releasing hormone PR 546: no other info available 9/89. protirelin : A tripeptide composed of L-pyroglutamyl, L-histidyl and L-prolinamide residues joined in sequence.	3.23	1	0	peptide hormone; tripeptide	human metabolite
cannabidiol Cannabidiol: Compound isolated from Cannabis sativa extract.. cannabidiol : An cannabinoid that is cyclohexene which is substituted by a methyl group at position 1, a 2,6-dihydroxy-4-pentylphenyl group at position 3, and a prop-1-en-2-yl group at position 4.	1.96	1	0	olefinic compound; phytocannabinoid; resorcinols	antimicrobial agent; plant metabolite
buprenorphine Buprenorphine: A derivative of the opioid alkaloid THEBAINE that is a more potent and longer lasting analgesic than MORPHINE. It appears to act as a partial agonist at mu and kappa opioid receptors and as an antagonist at delta receptors. The lack of delta-agonist activity has been suggested to account for the observation that buprenorphine tolerance may not develop with chronic use.. buprenorphine : A morphinane alkaloid that is 7,8-dihydromorphine 6-O-methyl ether in which positions 6 and 14 are joined by a -CH2CH2- bridge, one of the hydrogens of the N-methyl group is substituted by cyclopropyl, and a hydrogen at position 7 is substituted by a 2-hydroxy-3,3-dimethylbutan-2-yl group. It is highly effective for the treatment of opioid use disorder and is also increasingly being used in the treatment of chronic pain.	2.01	1	0	morphinane alkaloid	delta-opioid receptor antagonist; kappa-opioid receptor antagonist; mu-opioid receptor agonist; opioid analgesic
arginine vasopressin Arginine Vasopressin: The predominant form of mammalian antidiuretic hormone. It is a nonapeptide containing an ARGININE at residue 8 and two disulfide-linked cysteines at residues of 1 and 6. Arg-vasopressin is used to treat DIABETES INSIPIDUS or to improve vasomotor tone and BLOOD PRESSURE.. argipressin : The predominant form of mammalian vasopressin (antidiuretic hormone). It is a nonapeptide containing an arginine at residue 8 and two disulfide-linked cysteines at residues of 1 and 6.	5.2	3	1	vasopressin	cardiovascular drug; hematologic agent; mitogen
s 1033 [no description available]	3.23	1	0	(trifluoromethyl)benzenes; imidazoles; pyridines; pyrimidines; secondary amino compound; secondary carboxamide	anticoronaviral agent; antineoplastic agent; tyrosine kinase inhibitor
mezlocillin Mezlocillin: Semisynthetic ampicillin-derived acylureido penicillin. It has been proposed for infections with certain anaerobes and may be useful in inner ear, bile, and CNS infections.. mezlocillin : A penicillin in which the substituent at position 6 of the penam ring is a (2R)-2-[3-(methanesulfonyl)-2-oxoimidazolidine-1-carboxamido]-2-phenylacetamido group.	2.43	2	0	penicillin allergen; penicillin	antibacterial drug
cholinophyllin [no description available]	2.02	1	0
tropisetron Tropisetron: An indole derivative and 5-HT3 RECEPTOR antagonist that is used for the prevention of nausea and vomiting.. tropisetron : An indolyl carboxylate ester obtained by formal condensation of the carboxy group of indole-3-carboxylic acid with the hydroxy group of tropine.	2.04	1	0	indolyl carboxylic acid
sodium metabisulfite sodium metabisulfite: request from searcher; RN given refers to disulfurous acid, di-Na salt. sodium disulfite : An inorganic sodium salt composed of sodium and disulfite ions in a 2:1 ratio.	2.01	1	0	inorganic sodium salt	food antioxidant
leuprolide Leuprolide: A potent synthetic long-acting agonist of GONADOTROPIN-RELEASING HORMONE that regulates the synthesis and release of pituitary gonadotropins, LUTEINIZING HORMONE and FOLLICLE STIMULATING HORMONE.. leuprolide : An oligopeptide comprising pyroglutamyl, histidyl, tryptophyl, seryl, tyrosyl, D-leucyl, leucyl, arginyl, and N-ethylprolinamide residues joined in sequence. It is a synthetic nonapeptide analogue of gonadotropin-releasing hormone, and is used as a subcutaneous hydrogel implant (particularly as the acetate salt) for the treatment of prostate cancer and for the suppression of gonadal sex hormone production in children with central precocious puberty.	2.04	1	0	oligopeptide	anti-estrogen; antineoplastic agent; gonadotropin releasing hormone agonist
fludarabine [no description available]	2.43	2	0	purine nucleoside
propylthiouracil Propylthiouracil: A thiourea antithyroid agent. Propythiouracil inhibits the synthesis of thyroxine and inhibits the peripheral conversion of throxine to tri-iodothyronine. It is used in the treatment of hyperthyroidism. (From Martindale, The Extra Pharmacopeoia, 30th ed, p534). 6-propyl-2-thiouracil : A pyrimidinethione consisting of uracil in which the 2-oxo group is substituted by a thio group and the hydrogen at position 6 is substituted by a propyl group.	3.84	3	0	pyrimidinethione	antidote to paracetamol poisoning; antimetabolite; antioxidant; antithyroid drug; carcinogenic agent; EC 1.14.13.39 (nitric oxide synthase) inhibitor; hormone antagonist
ipratropium bromide anhydrous [no description available]	2.02	1	0
chlorprothixene Chlorprothixene: A thioxanthine with effects similar to the phenothiazine antipsychotics.. (Z)-chlorprothixene : A chlorprothixene in which the double bond adopts a (Z)-configuration.	1.94	1	0	chlorprothixene
etomidate Etomidate: Imidazole derivative anesthetic and hypnotic with little effect on blood gases, ventilation, or the cardiovascular system. It has been proposed as an induction anesthetic.. etomidate : The ethyl ester of 1-[(1R)-1-phenylethyl]-1H-imidazole-5-carboxylic acid. It is an intravenous general anaesthetic with no analgesic activity.	14.53	92	22	ethyl ester; imidazoles	intravenous anaesthetic; sedative
mercaptopurine Mercaptopurine: An antimetabolite antineoplastic agent with immunosuppressant properties. It interferes with nucleic acid synthesis by inhibiting purine metabolism and is used, usually in combination with other drugs, in the treatment of or in remission maintenance programs for leukemia.. purine-6-thiol : A thiol that is the tautomer of mercaptopurine.. mercaptopurine : A member of the class of purines that is 6,7-dihydro-1H-purine carrying a thione group at position 6. An adenine analogue, it is used in the treatment of acute lymphocytic leukemia (ALL), chronic myeloid leukemia (CML), Crohn's disease, and ulcerative colitis.	3.84	3	0	aryl thiol; purines; thiocarbonyl compound	anticoronaviral agent; antimetabolite; antineoplastic agent
pyrantel Pyrantel: A depolarizing neuromuscular-blocking agent, that causes persistent nicotinic activation resulting in spastic paralysis of susceptible nematodes. It is a drug of second-choice after benzimidazoles for treatment of ascariasis, hookworm, and pinworm infections, being effective after a single dose. (From Smith and Reynard, Textbook of Pharmacology, 1992, p920). pyrantel : A carboxamidine that is 1,4,5,6-tetrahydropyrimidine that is substituted at position 1 by a methyl group and at position 2 by an (E)-2-(2-thienyl)vinyl group. It is used, particularly as the embonate [4,4'-methylenebis(3-hydroxy-2-naphthoate)] salt, as an anthelmintic that is effective against intestinal nematodes including threadworms, roundworms and hookworms, and is included in the WHO 'Model List of Essential Medicines'.	3.23	1	0	1,4,5,6-tetrahydropyrimidines; carboxamidine; thiophenes	antinematodal drug
cotinine Cotinine: The N-glucuronide conjugate of cotinine is a major urinary metabolite of NICOTINE. It thus serves as a biomarker of exposure to tobacco SMOKING. It has CNS stimulating properties.. (-)-cotinine : An N-alkylpyrrolidine that consists of N-methylpyrrolidinone bearing a pyridin-3-yl substituent at position C-5 (the 5S-enantiomer). It is an alkaloid commonly found in Nicotiana tabacum.	2.04	1	0	N-alkylpyrrolidine; pyridines; pyrrolidin-2-ones; pyrrolidine alkaloid	antidepressant; biomarker; human xenobiotic metabolite; plant metabolite
thiothixene [no description available]	3.56	2	0	N-methylpiperazine	anticoronaviral agent
eszopiclone Eszopiclone: A pyridine, pyrazine, and piperazine derivative that is used as a HYPNOTIC AND SEDATIVE in the treatment of INSOMNIA.. eszopiclone : The (5S)- (active) enantiomer of zopiclone. Unlike almost all other hypnotic sedatives, which are approved only for the relief of short-term (6-8 weeks) insomnia, eszopiclone is approved by the U.S. Food and Drug Administration for long-term use.	3.23	1	0	zopiclone	central nervous system depressant; sedative
benztropine Benztropine: A centrally active muscarinic antagonist that has been used in the symptomatic treatment of PARKINSON DISEASE. Benztropine also inhibits the uptake of dopamine.. benzatropine : Tropane in which a hydrogen at position 3 is substituted by a diphenylmethoxy group (endo-isomer). An acetylcholine receptor antagonist, it is used (particularly as its methanesulphonate salt) in the treatment of Parkinson's disease, and to reduce parkinsonism and akathisia side effects of antipsychotic treatments.	3.56	2	0	diarylmethane
methimazole Methimazole: A thioureylene antithyroid agent that inhibits the formation of thyroid hormones by interfering with the incorporation of iodine into tyrosyl residues of thyroglobulin. This is done by interfering with the oxidation of iodide ion and iodotyrosyl groups through inhibition of the peroxidase enzyme.. methimazole : A member of the class of imidazoles that it imidazole-2-thione in which a methyl group replaces the hydrogen which is attached to a nitrogen.	3.58	2	0	1,3-dihydroimidazole-2-thiones	antithyroid drug
sulindac Sulindac: A sulfinylindene derivative prodrug whose sulfinyl moiety is converted in vivo to an active NSAID analgesic. Specifically, the prodrug is converted by liver enzymes to a sulfide which is excreted in the bile and then reabsorbed from the intestine. This helps to maintain constant blood levels with reduced gastrointestinal side effects.. sulindac : A monocarboxylic acid that is 1-benzylidene-1H-indene which is substituted at positions 2, 3, and 5 by methyl, carboxymethyl, and fluorine respectively, and in which the phenyl group of the benzylidene moiety is substituted at the para position by a methylsulfinyl group. It is a prodrug for the corresponding sulfide, a non-steroidal anti-inflammatory drug, used particularly in the treatment of acute and chronic inflammatory conditions.	3.56	2	0	monocarboxylic acid; organofluorine compound; sulfoxide	analgesic; antineoplastic agent; antipyretic; apoptosis inducer; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; non-narcotic analgesic; non-steroidal anti-inflammatory drug; prodrug; tocolytic agent
capsaicin ALGRX-4975: an injectable capsaicin (TRPV1 receptor agonist) formulation for longlasting pain relief. capsaicinoid : A family of aromatic fatty amides produced as secondary metabolites by chilli peppers.	1.97	1	0	capsaicinoid	non-narcotic analgesic; TRPV1 agonist; voltage-gated sodium channel blocker
enclomiphene Enclomiphene: The trans or (E)-isomer of clomiphene.	2.02	1	0
terbinafine [no description available]	3.56	2	0	acetylenic compound; allylamine antifungal drug; enyne; naphthalenes; tertiary amine	EC 1.14.13.132 (squalene monooxygenase) inhibitor; P450 inhibitor; sterol biosynthesis inhibitor
drotaverin drotaverin: Hungarian drug; RN given refers to parent cpd; structure	2.04	1	0	isoquinolines
thioguanine anhydrous Thioguanine: An antineoplastic compound which also has antimetabolite action. The drug is used in the therapy of acute leukemia.. tioguanine : A 2-aminopurine that is the 6-thiono derivative of 2-amino-1,9-dihydro-6H-purine. Incorporates into DNA and inhibits synthesis. Used in the treatment of leukaemia.	3.56	2	0	2-aminopurines	anticoronaviral agent; antimetabolite; antineoplastic agent
succimer Succimer: A mercaptodicarboxylic acid used as an antidote to heavy metal poisoning because it forms strong chelates with them.. succimer : A sulfur-containing carboxylic acid that is succinic acid bearing two mercapto substituents at positions 2 and 3. A lead chelator used as an antedote to lead poisoning.	3.56	2	0	dicarboxylic acid; dithiol; sulfur-containing carboxylic acid	chelator
digoxin Digoxin: A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666). digoxin : A cardenolide glycoside that is digitoxin beta-hydroxylated at C-12. A cardiac glycoside extracted from the foxglove plant, Digitalis lanata, it is used to control ventricular rate in atrial fibrillation and in the management of congestive heart failure with atrial fibrillation, but the margin between toxic and therapeutic doses is small.	3.78	3	0	cardenolide glycoside; steroid saponin	anti-arrhythmia drug; cardiotonic drug; EC 3.6.3.9 (Na(+)/K(+)-transporting ATPase) inhibitor; epitope
streptozocin [no description available]	3.56	2	0
tamoxifen [no description available]	3.56	2	0	stilbenoid; tertiary amino compound	angiogenesis inhibitor; antineoplastic agent; bone density conservation agent; EC 1.2.3.1 (aldehyde oxidase) inhibitor; EC 2.7.11.13 (protein kinase C) inhibitor; estrogen antagonist; estrogen receptor antagonist; estrogen receptor modulator
nadp [no description available]	1.94	1	0
ethionamide Ethionamide: A second-line antitubercular agent that inhibits mycolic acid synthesis.. ethionamide : A thiocarboxamide that is pyridine-4-carbothioamide substituted by an ethyl group at position 2. A prodrug that undergoes metabolic activation by conversion to the corresponding S-oxide.	3.56	2	0	pyridines; thiocarboxamide	antilipemic drug; antitubercular agent; fatty acid synthesis inhibitor; leprostatic drug; prodrug
cancidas [no description available]	3.58	2	0
lincomycin Lincomycin: An antibiotic produced by Streptomyces lincolnensis var. lincolnensis. It has been used in the treatment of staphylococcal, streptococcal, and Bacteroides fragilis infections.. lincomycin : A carbohydrate-containing antibiotic produced by the actinomyces Streptomyces lincolnensis.	3.58	2	0	carbohydrate-containing antibiotic; L-proline derivative; monocarboxylic acid amide; pyrrolidinecarboxamide; S-glycosyl compound	antimicrobial agent; bacterial metabolite
thiopental Thiopental: A barbiturate that is administered intravenously for the induction of general anesthesia or for the production of complete anesthesia of short duration.. thiopental : A barbiturate, the structure of which is that of 2-thiobarbituric acid substituted at C-5 by ethyl and sec-pentyl groups.	16.39	275	48	barbiturates	anticonvulsant; drug allergen; environmental contaminant; intravenous anaesthetic; sedative; xenobiotic
ranitidine Ranitidine: A non-imidazole blocker of those histamine receptors that mediate gastric secretion (H2 receptors). It is used to treat gastrointestinal ulcers.. ranitidine : A member of the class of furans used to treat peptic ulcer disease (PUD) and gastroesophageal reflux disease.	3.23	1	0	C-nitro compound; furans; organic sulfide; tertiary amino compound	anti-ulcer drug; drug allergen; environmental contaminant; H2-receptor antagonist; xenobiotic
aplaviroc aplaviroc: a spiro-diketo-piperazine; a potent noncompetitive allosteric antagonist of the CCR5 receptor with concomitantly potent antiviral effects for HIV-1; structure in first source	3.23	1	0
hmr 3647 [no description available]	3.58	2	0
maraviroc [no description available]	3.23	1	0	tropane alkaloid
toremifene Toremifene: A first generation selective estrogen receptor modulator (SERM). Like TAMOXIFEN, it is an estrogen agonist for bone tissue and cholesterol metabolism but is antagonistic on mammary and uterine tissue.	3.23	1	0	aromatic ether; organochlorine compound; tertiary amine	antineoplastic agent; bone density conservation agent; estrogen antagonist; estrogen receptor modulator
nelarabine nelarabine: prodrug of ara-G. nelarabine : A purine nucleoside in which O-methylguanine is attached to arabinofuranose via a beta-N(9)-glycosidic bond. Inhibits DNA synthesis and causes cell death; a prodrug of 9-beta-D-arabinofuranosylguanine (ara-G).	3.58	2	0	beta-D-arabinoside; monosaccharide derivative; purine nucleoside	antineoplastic agent; DNA synthesis inhibitor; prodrug
2-[(2-ethoxyphenoxy)-phenylmethyl]morpholine [no description available]	2.04	1	0	aromatic ether
lithium Lithium: An element in the alkali metals family. It has the atomic symbol Li, atomic number 3, and atomic weight [6.938; 6.997]. Salts of lithium are used in treating BIPOLAR DISORDER.	2.35	2	0	alkali metal atom
thiamylal Thiamylal: A barbiturate that is administered intravenously for the production of complete anesthesia of short duration, for the induction of general anesthesia, or for inducing a hypnotic state. (From Martindale, The Extra Pharmacopoeia, 30th ed, p919). thiamylal : A member of the class of barbiturates that is 2-thioxodihydropyrimidine-4,6(1H,5H)-dione substituted by a pentan-2-yl and prop-2-en-1-yl group at position 5.	5.2	16	0	barbiturates; organosulfur compound	sedative
methitural methitural: RN given refers to parent cpd; structure	6.93	1	0	barbiturates
thiobutabarbital thiobutabarbital: RN given refers to parent cpd	2.38	2	0
dermatan sulfate Dermatan Sulfate: A naturally occurring glycosaminoglycan found mostly in the skin and in connective tissue. It differs from CHONDROITIN SULFATE A (see CHONDROITIN SULFATES) by containing IDURONIC ACID in place of glucuronic acid, its epimer, at carbon atom 5. (from Merck, 12th ed). alpha-L-IdopA-(1->3)-beta-D-GalpNAc4S : An oligosaccharide sulfate that is 2-acetamido-2-deoxy-4-O-sulfo-beta-D-galactopyranose in which the hydroxy group at position 3 has been converted to the corresponding alpha-L-idopyranuronoside.. dermatan sulfate : Any of a group of glycosaminoglycans with repeating units consisting of variously sulfated beta1->4-linked L-iduronyl-(alpha1->3)-N-acetyl-D-galactosamine units.	3.23	1	0	amino disaccharide; glycosylgalactose derivative; iduronic acids; oligosaccharide sulfate
dezocine dezocine: potent analgesic; RN given refers to ((5R-(5alpha,11alpha,13S*)))-isomer (dezocin); structure. dezocine : (7S,8S)-7-Amino-8-methyl-5,6,7,8-tetrahydronaphthalen-2-ol in which the hydrogen at position 8 and one of the hydrogens at position 6 are substituted by each end of a tetramethylene bridge. A synthetic opioid analgesic, it has mixed opiod agonist and antagonist properties. Although it is used for pain management, it can produce opioid withdrawal syndrome in patients already dependent on other opioids, and its clinical application is limited by side effects such as dizziness.	2.02	1	0	phenols; primary amino compound	opioid analgesic
dapiprazole [no description available]	2.02	1	0	N-alkylpiperazine; N-arylpiperazine; pyridines	alpha-adrenergic antagonist; antipsychotic agent; miotic; ophthalmology drug
dolasetron [no description available]	3.58	2	0	indolyl carboxylic acid
or 1259 [no description available]	2.04	1	0	hydrazone; nitrile; pyridazinone	anti-arrhythmia drug; cardiotonic drug; EC 3.1.4.17 (3',5'-cyclic-nucleotide phosphodiesterase) inhibitor; vasodilator agent
gestodene Gestodene: synthetic steroid with progestational activity; RN given refers to (17alpha)-isomer	2.04	1	0	steroid	estrogen
orlistat Orlistat: A lactone derivative of LEUCINE that acts as a pancreatic lipase inhibitor to limit the absorption of dietary fat; it is used in the management of obesity.. orlistat : A carboxylic ester resulting from the formal condensation of the carboxy group of N-formyl-L-leucine with the hydroxy group of (3S,4S)-3-hexyl-4-[(2S)-2-hydroxytridecyl]oxetan-2-one. A pancreatic lipase inhibitor, it is used as an anti-obesity drug.	3.23	1	0	beta-lactone; carboxylic ester; formamides; L-leucine derivative	anti-obesity agent; bacterial metabolite; EC 2.3.1.85 (fatty acid synthase) inhibitor; EC 3.1.1.3 (triacylglycerol lipase) inhibitor
quinine [no description available]	3.78	3	0	cinchona alkaloid	antimalarial; muscle relaxant; non-narcotic analgesic
isepamicin [no description available]	2.04	1	0
ifetroban ifetroban: thromboxane receptor antagonist; structure given in first source; a 7-oxabicyclo(2.2.1)heptane derivative	2.04	1	0	benzenes; monocarboxylic acid
lamifiban lamifiban: a nonpeptide glycoprotein IIb/IIIa antagonist; prevents platelet loss during experimental cardiopulmonary bypass	2.04	1	0	N-acylglycine
fospropofol [no description available]	3.23	1	0	alkylbenzene
rasagiline [no description available]	3.23	1	0	indanes; secondary amine; terminal acetylenic compound	EC 1.4.3.4 (monoamine oxidase) inhibitor; neuroprotective agent
dasatinib N-(2-chloro-6-methylphenyl)-2-((6-(4-(2-hydroxyethyl)piperazin-1-yl)-2-methylpyrimidin-4-yl)amino)-1,3-thiazole-5-carboxamide: a dasatinib prodrug; structure in first source. dasatinib (anhydrous) : An aminopyrimidine that is 2-methylpyrimidine which is substituted at position 4 by the primary amino group of 2-amino-1,3-thiazole-5-carboxylic acid and at position 6 by a 4-(2-hydroxyethyl)piperazin-1-yl group, and in which the carboxylic acid group has been formally condensed with 2-chloro-6-methylaniline to afford the corresponding amide. A multi-targeted kinase inhibitor, it is used, particularly as the monohydrate, for the treatment of chronic, accelerated, or myeloid or lymphoid blast phase chronic myeloid leukemia. Note that the name 'dasatinib' is used to refer to the monohydrate (USAN) as well as to anhydrous dasatinib (INN).	3.23	1	0	1,3-thiazoles; aminopyrimidine; monocarboxylic acid amide; N-(2-hydroxyethyl)piperazine; N-arylpiperazine; organochlorine compound; secondary amino compound; tertiary amino compound	anticoronaviral agent; antineoplastic agent; tyrosine kinase inhibitor
telavancin telavancin: an anti-infective agent; structure in first source. telavancin : A glycopeptide that is vancomycin substituted at position N-3'' by a 2-(decylamino)ethyl group and at position C-29 by a (phosphonomethyl)aminomethyl group. Used as its hydrochloride salt for treatment of adults with complicated skin and skin structure infections caused by bacteria.	2.04	1	0	glycopeptide	antibacterial drug; antimicrobial agent
immobilon Immobilon: etorphine-methotrimeprazine combination used as tranquilizer for small animals; methotrimeprazine replaced by acepromazine for use in cattle & horses; do not confuse with Immobilon P (a component of artificial membranes)	1.96	1	0
2,3-dioxo-6-nitro-7-sulfamoylbenzo(f)quinoxaline 2,3-dioxo-6-nitro-7-sulfamoylbenzo(f)quinoxaline: structure given in first source; neuroprotectant for cerebral ischemia; AMPA receptor antagonist	2.38	2	0	naphthalenes; sulfonic acid derivative
sitagliptin sitagliptin : A triazolopyrazine that exhibits hypoglycemic activity.	3.58	2	0	triazolopyrazine; trifluorobenzene	EC 3.4.14.5 (dipeptidyl-peptidase IV) inhibitor; environmental contaminant; hypoglycemic agent; serine proteinase inhibitor; xenobiotic
flosequinan [no description available]	2.02	1	0	quinolines
tolcapone Tolcapone: A benzophenone and nitrophenol compound that acts as an inhibitor of CATECHOL O-METHYLTRANSFERASE, an enzyme involved in the metabolism of DOPAMINE and LEVODOPA. It is used in the treatment of PARKINSON DISEASE in patients for whom levodopa is ineffective or contraindicated.. tolcapone : Benzophenone substituted on one of the phenyl rings at C-3 and C-4 by hydroxy groups and at C-5 by a nitro group, and on the other phenyl ring by a methyl group at C-4. It is an inhibitor of catechol O-methyltransferase.	3.58	2	0	2-nitrophenols; benzophenones; catechols	antiparkinson drug; EC 2.1.1.6 (catechol O-methyltransferase) inhibitor
quercetin [no description available]	2.39	2	0	7-hydroxyflavonol; pentahydroxyflavone	antibacterial agent; antineoplastic agent; antioxidant; Aurora kinase inhibitor; chelator; EC 1.10.99.2 [ribosyldihydronicotinamide dehydrogenase (quinone)] inhibitor; geroprotector; phytoestrogen; plant metabolite; protein kinase inhibitor; radical scavenger
calcitriol dihydroxy-vitamin D3: as a major in vitro metabolite of 1alpha,25-dihydroxyvitamin D3, produced in primary cultures of neonatal human keratinocytes	3.56	2	0	D3 vitamins; hydroxycalciol; triol	antineoplastic agent; antipsoriatic; bone density conservation agent; calcium channel agonist; calcium channel modulator; hormone; human metabolite; immunomodulator; metabolite; mouse metabolite; nutraceutical
alprostadil [no description available]	2.02	1	0	prostaglandins E	anticoagulant; human metabolite; platelet aggregation inhibitor; vasodilator agent
vitamin d 2 Ergocalciferols: Derivatives of ERGOSTEROL formed by ULTRAVIOLET RAYS breaking of the C9-C10 bond. They differ from CHOLECALCIFEROL in having a double bond between C22 and C23 and a methyl group at C24.. vitamin D2 : A vitamin D supplement and has been isolated from alfalfa.	3.23	1	0	hydroxy seco-steroid; seco-ergostane; vitamin D	bone density conservation agent; nutraceutical; plant metabolite; rodenticide
amphotericin b Amphotericin B: Macrolide antifungal antibiotic produced by Streptomyces nodosus obtained from soil of the Orinoco river region of Venezuela.. amphotericin B : A macrolide antibiotic used to treat potentially life-threatening fungal infections.	3.56	2	0	antibiotic antifungal drug; macrolide antibiotic; polyene antibiotic	antiamoebic agent; antiprotozoal drug; bacterial metabolite
clavulanic acid Clavulanic Acid: A beta-lactam antibiotic produced by the actinobacterium Streptomyces clavuligerus. It is a suicide inhibitor of bacterial beta-lactamase enzymes. Administered alone, it has only weak antibacterial activity against most organisms, but given in combination with other beta-lactam antibiotics it prevents antibiotic inactivation by microbial lactamase.. clavulanate : The conjugate base of clavulanic acid.. clavulanic acid : Antibiotic isolated from Streptomyces clavuligerus. It acts as a suicide inhibitor of bacterial beta-lactamase enzymes.	2.04	1	0	oxapenam	antibacterial drug; anxiolytic drug; bacterial metabolite; EC 3.5.2.6 (beta-lactamase) inhibitor
pulmicort Budesonide: A glucocorticoid used in the management of ASTHMA, the treatment of various skin disorders, and allergic RHINITIS.. budesonide : A glucocorticoid steroid having a highly oxygenated pregna-1,4-diene structure. It is used mainly in the treatment of asthma and non-infectious rhinitis and for treatment and prevention of nasal polyposis.	3.84	3	0	11beta-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(1),Delta(4)-steroid; cyclic acetal; glucocorticoid; primary alpha-hydroxy ketone	anti-inflammatory drug; bronchodilator agent; drug allergen
oxymetholone Oxymetholone: A synthetic hormone with anabolic and androgenic properties. It is used mainly in the treatment of anemias. According to the Fourth Annual Report on Carcinogens (NTP 85-002), this compound may reasonably be anticipated to be a carcinogen. (From Merck Index, 11th ed). oxymetholone : A 3-oxo-5alpha- steroid that is 4,5alpha-dihydrotestosterone which is substituted by a hydroxymethylidene group at position 2 and by a methyl group at the 17alpha position. A synthetic androgen, it was mainly used for the treatment of anaemias until being replaced by treatments with fewer side effects.	3.23	1	0
eprosartan eprosartan: angiotensin II receptor antagonist. eprosartan : A member of the class of imidazoles and thiophenes that is an angiotensin II receptor antagonist used for the treatment of high blood pressure.	3.58	2	0	dicarboxylic acid; imidazoles; thiophenes	angiotensin receptor antagonist; antihypertensive agent; environmental contaminant; xenobiotic
montelukast montelukast: a leukotriene D4 receptor antagonist	3.58	2	0	aliphatic sulfide; monocarboxylic acid; quinolines	anti-arrhythmia drug; anti-asthmatic drug; leukotriene antagonist
mivacurium Mivacurium: An isoquinoline derivative that is used as a short-acting non-depolarizing agent.	6.11	5	1	isoquinolines
olopatadine [no description available]	2.02	1	0
hemabate carboprost tromethamine : The tromethamine salt of carboprost. It is used as an abortifacient agent that is effective in both the first and second trimesters of pregnancy.	3.23	1	0
mycophenolate mofetil mycophenolate mofetil : A carboxylic ester resulting from the formal condensation between the carboxylic acid group of mycophenolic acid and the hydroxy group of 2-(morpholin-4-yl)ethanol. In the liver, it is metabolised to mycophenolic acid, an immunosuppressant for which it is a prodrug. It is widely used to prevent tissue rejection following organ transplants as well as for the treatment of certain autoimmune diseases.	3.23	1	0	carboxylic ester; ether; gamma-lactone; phenols; tertiary amino compound	anticoronaviral agent; EC 1.1.1.205 (IMP dehydrogenase) inhibitor; immunosuppressive agent; prodrug
bw b1090u [no description available]	2.02	1	0	isoquinolines
entacapone entacapone: structure given in first source. entacapone : A monocarboxylic acid amide that is N,N-diethylprop-2-enamide in which the hydrogen at position 2 is substituted by a cyano group and the hydrogen at the 3E position is substituted by a 3,4-dihydroxy-5-nitrophenyl group.	3.58	2	0	2-nitrophenols; catechols; monocarboxylic acid amide; nitrile	antidyskinesia agent; antiparkinson drug; central nervous system drug; EC 2.1.1.6 (catechol O-methyltransferase) inhibitor
paricalcitol [no description available]	3.58	2	0	hydroxy seco-steroid; seco-cholestane	antiparathyroid drug
toxiferine Toxiferine: A curare alkaloid that is a very potent competitive nicotinic antagonist at the neuromuscular junction.	1.94	1	0	alkaloid
sdz psc 833 valspodar: nonimmunosuppressive cyclosporin analog which is a potent multidrug resistance modifier; 7-10 fold more potent than cyclosporin A; a potent P glycoprotein inhibitor; MW 1215	2.04	1	0	homodetic cyclic peptide
7432 s Ceftibuten: A cephalosporin antibacterial agent that is used in the treatment of infections, including urinary-tract and respiratory-tract infections.. ceftibuten : A third-generation cephalosporin antibiotic with a [(2Z)-2-(2-amino-1,3-thiazol-4-yl)-4-carboxybut-2-enoyl]amino substituent at the 7 position of the cephem skeleton. An orally-administered agent, ceftibuten is used as the dihydrate to treat urinary-tract and respiratory-tract infections.	3.56	2	0	cephalosporin; dicarboxylic acid	antibacterial drug
etretinate retinoid : Oxygenated derivatives of 3,7-dimethyl-1-(2,6,6-trimethylcyclohex-1-enyl)nona-1,3,5,7-tetraene and derivatives thereof.	2.02	1	0	enoate ester; ethyl ester; retinoid	keratolytic drug
isotretinoin Isotretinoin: A topical dermatologic agent that is used in the treatment of ACNE VULGARIS and several other skin diseases. The drug has teratogenic and other adverse effects.. isotretinoin : A retinoic acid that is all-trans-retinoic acid in which the double bond which is alpha,beta- to the carboxy group is isomerised to Z configuration. A synthetic retinoid, it is used for the treatment of severe cases of acne and other skin diseases.	3.56	2	0	retinoic acid	antineoplastic agent; keratolytic drug; teratogenic agent
misoprostol Misoprostol: A synthetic analog of natural prostaglandin E1. It produces a dose-related inhibition of gastric acid and pepsin secretion, and enhances mucosal resistance to injury. It is an effective anti-ulcer agent and also has oxytocic properties.. misoprostol : A diastereoisomeric mixture composed of approximately equal amounts of a double racemate of four of the sixteen possible diastereoisomers of methyl (13E)-11,16-dihydroxy-16-methyl-9-oxoprost-13-en-1-oate that is racemic prostaglandin E1 which is lacking the hydroxy group at position 15, but which has an additional hydroxy group at position 16. It is a synthetic prostaglandin E1 analogue, used in the treatment of gastric and duodenal ulcers. A weak abortifacient, it is also used for cervical ripening prior to surgical termination of pregnancy. The (11R,16S)-diastereoisomer is the pharmacologically active form.	2.02	1	0
epoprostenol [no description available]	3.56	2	0	prostaglandins I	mouse metabolite
indocyanine green [no description available]	3.58	2	0	1,1-diunsubstituted alkanesulfonate; benzoindole; cyanine dye
triprolidine Triprolidine: Histamine H1 antagonist used in allergic rhinitis; ASTHMA; and URTICARIA. It is a component of COUGH and COLD medicines. It may cause drowsiness.. triprolidine : An N-alkylpyrrolidine that is acrivastine in which the pyridine ring is lacking the propenoic acid substituent. It is a sedating antihistamine that is used (generally as the monohydrochloride monohydrate) for the relief of the symptoms of uticaria, rhinitis, and various pruritic skin disorders.	3.23	1	0	N-alkylpyrrolidine; olefinic compound; pyridines	H1-receptor antagonist
pitavastatin pitavastatin : A dihydroxy monocarboxylic acid that is (6E)-7-[2-cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl]hept-6-enoic acid in which the two hydroxy groups are located at positions 3 and 5 (the 3R,5S-stereoisomer). Used as its calcium salt for treatment of hypercholesterolemia (elevated levels of cholesterol in the blood) on patients unable to sufficiently lower their cholesterol levels by diet and exercise.	3.23	1	0	cyclopropanes; dihydroxy monocarboxylic acid; monofluorobenzenes; quinolines; statin (synthetic)	antioxidant
ethamolin monoethanolamine oleate: used for treatment of pyogenic granuloma	3.23	1	0	long-chain fatty acid
betamethasone benzoate [no description available]	2.02	1	0	21-hydroxy steroid
alatrofloxacin mesylate [no description available]	3.23	1	0
codeine [no description available]	5.39	4	1	morphinane alkaloid; organic heteropentacyclic compound	antitussive; drug allergen; environmental contaminant; opioid analgesic; opioid receptor agonist; prodrug; xenobiotic
cyclosporine ramihyphin A: one of the metabolites produced by Fusarium sp. S-435; RN given refers to cpd with unknown MF	3.58	2	0	homodetic cyclic peptide	anti-asthmatic drug; anticoronaviral agent; antifungal agent; antirheumatic drug; carcinogenic agent; dermatologic drug; EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor; geroprotector; immunosuppressive agent; metabolite
acitretin Acitretin: An oral retinoid effective in the treatment of psoriasis. It is the major metabolite of ETRETINATE with the advantage of a much shorter half-life when compared with etretinate.. acitretin : A retinoid that consists of 3,7-dimethylnona-2,4,6,8-tetraenoic acid having a 4-methoxy-2,3,6-trimethylphenyl group attached at position 9.	3.23	1	0	acitretin; alpha,beta-unsaturated monocarboxylic acid; retinoid	keratolytic drug
dorzolamide dorzolamide: topically effective ocular hypotensive carbonic anhydrase inhibitor; RN refers to mono-HCl (4S-trans)-isomer. dorzolamide : 5,6-Dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide in which hydrogens at the 4 and 6 positions are substituted by ethylamino and methyl groups, respectively (4S, trans-configuration). A carbonic anhydrase inhibitor, it is used as the hydrochloride in ophthalmic solutions to lower increased intraocular pressure in the treatment of open-angle glaucoma and ocular hypertension.	2.02	1	0	sulfonamide; thiophenes	antiglaucoma drug; antihypertensive agent; EC 4.2.1.1 (carbonic anhydrase) inhibitor
estropipate estropipate: used therapeutically in menopausal patients	3.23	1	0	piperazinium salt; steroid sulfate
hydromorphone Hydromorphone: An opioid analgesic made from MORPHINE and used mainly as an analgesic. It has a shorter duration of action than morphine.. hydromorphone : A morphinane alkaloid that is a hydrogenated ketone derivative of morphine. A semi-synthetic drug, it is a centrally acting pain medication of the opioid class.	5.46	4	0	morphinane alkaloid; organic heteropentacyclic compound	mu-opioid receptor agonist; opioid analgesic
levetiracetam Levetiracetam: A pyrrolidinone and acetamide derivative that is used primarily for the treatment of SEIZURES and some movement disorders, and as a nootropic agent.. levetiracetam : A pyrrolidinone and carboxamide that is N-methylpyrrolidin-2-one in which one of the methyl hydrogens is replaced by an aminocarbonyl group, while another is replaced by an ethyl group (the S enantiomer). An anticonvulsant, it is used for the treatment of epilepsy in both human and veterinary medicine.	3.23	1	0	pyrrolidin-2-ones	anticonvulsant; environmental contaminant; xenobiotic
ly 163892 loracarbef: 1-carbacephem antibiotic; has a broad spectrum of antimicrobial activity; structure given in first source; carbacephems differ from cephalosporins in the substitution of a sulfur atom in the dihydrothiazine ring with a methylene group to form a tetrahydropyridine ring. loracarbef : A synthetic "carba" analogue of cefaclor, with carbon replacing sulfur at position 1. Used to treat a wide range of infections caused by both gram-positive and gram-negative bacteria.	3.56	2	0	carbacephem; zwitterion	antibacterial drug; antimicrobial agent
nabilone nabilone: cannabinol deriv; RN given refers to cpd without isomeric designation; structure	3.23	1	0
nalmefene nalmefene: RN given refers to 5-alpha isomer	2.43	2	0	morphinane alkaloid
nalorphine Nalorphine: A narcotic antagonist with some agonist properties. It is an antagonist at mu opioid receptors and an agonist at kappa opioid receptors. Given alone it produces a broad spectrum of unpleasant effects and it is considered to be clinically obsolete.	7.35	2	0	morphinane alkaloid
naloxone Naloxone: A specific opiate antagonist that has no agonist activity. It is a competitive antagonist at mu, delta, and kappa opioid receptors.. naloxone : A synthetic morphinane alkaloid that is morphinone in which the enone double bond has been reduced to a single bond, the hydrogen at position 14 has been replaced by a hydroxy group, and the methyl group attached to the nitrogen has been replaced by an allyl group. A specific opioid antagonist, it is used (commonly as its hydrochloride salt) to reverse the effects of opioids, both following their use of opioids during surgery and in cases of known or suspected opioid overdose.	7.51	12	4	morphinane alkaloid; organic heteropentacyclic compound; tertiary alcohol	antidote to opioid poisoning; central nervous system depressant; mu-opioid receptor antagonist
oxycodone Oxycodone: A semisynthetic derivative of CODEINE.. oxycodone : A semisynthetic opioid of formula C18H21NO4 that is derived from thebaine. It is a moderately potent opioid analgesic, generally used for relief of moderate to severe pain.	3.58	2	0	organic heteropentacyclic compound; semisynthetic derivative	antitussive; mu-opioid receptor agonist; opioid analgesic
oxymorphone Oxymorphone: An opioid analgesic with actions and uses similar to those of MORPHINE, apart from an absence of cough suppressant activity. It is used in the treatment of moderate to severe pain, including pain in obstetrics. It may also be used as an adjunct to anesthesia. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1092)	3.23	1	0	morphinane alkaloid
vitamin k 1 Vitamin K 1: A family of phylloquinones that contains a ring of 2-methyl-1,4-naphthoquinone and an isoprenoid side chain. Members of this group of vitamin K 1 have only one double bond on the proximal isoprene unit. Rich sources of vitamin K 1 include green plants, algae, and photosynthetic bacteria. Vitamin K1 has antihemorrhagic and prothrombogenic activity.. phylloquinone : A member of the class of phylloquinones that consists of 1,4-naphthoquinone having methyl and phytyl groups at positions 2 and 3 respectively. The parent of the class of phylloquinones.	3.23	1	0	phylloquinones; vitamin K	cofactor; human metabolite; plant metabolite
sirolimus Sirolimus: A macrolide compound obtained from Streptomyces hygroscopicus that acts by selectively blocking the transcriptional activation of cytokines thereby inhibiting cytokine production. It is bioactive only when bound to IMMUNOPHILINS. Sirolimus is a potent immunosuppressant and possesses both antifungal and antineoplastic properties.. sirolimus : A macrolide lactam isolated from Streptomyces hygroscopicus consisting of a 29-membered ring containing 4 trans double bonds, three of which are conjugated. It is an antibiotic, immunosupressive and antineoplastic agent.	3.23	1	0	antibiotic antifungal drug; cyclic acetal; cyclic ketone; ether; macrolide lactam; organic heterotricyclic compound; secondary alcohol	antibacterial drug; anticoronaviral agent; antineoplastic agent; bacterial metabolite; geroprotector; immunosuppressive agent; mTOR inhibitor
topiramate Topiramate: A sulfamate-substituted fructose analog that was originally identified as a hypoglycemic agent. It is used for the treatment of EPILEPSY and MIGRAINE DISORDERS, and may also promote weight loss.. topiramate : A hexose derivative that is 2,3:4,5-di-O-isopropylidene-beta-D-fructopyranose in which the hydroxy group has been converted to the corresponding sulfamate ester. It blocks voltage-dependent sodium channels and is used as an antiepileptic and for the prevention of migraine.	3.56	2	0	cyclic ketal; ketohexose derivative; sulfamate ester	anticonvulsant; sodium channel blocker
trospium chloride trospium chloride : An organic chloride salt of trospium. It is an antispasmodic drug used for the treatment of overactive bladder.	3.23	1	0
alvocidib alvocidib: structure given in first source. alvocidib : A synthetic dihydroxyflavone that is 5,7-dihydroxyflavone which is substituted by a 3-hydroxy-1-methylpiperidin-4-yl group at position 8 and by a chlorine at the 2' position (the (-)-3S,4R stereoisomer). A cyclin-dependent kinase 9 (CDK9) inhibitor, it has been studied for the treatment of acute myeloid leukaemia, arthritis and atherosclerotic plaque formation.	2.04	1	0	dihydroxyflavone; hydroxypiperidine; monochlorobenzenes; tertiary amino compound	antineoplastic agent; antirheumatic drug; apoptosis inducer; EC 2.7.11.22 (cyclin-dependent kinase) inhibitor
calcipotriene [no description available]	2.02	1	0	cyclopropanes; hydroxy seco-steroid; seco-cholestane; secondary alcohol; triol	antipsoriatic; drug allergen
morphine Meconium: The thick green-to-black mucilaginous material found in the intestines of a full-term fetus. It consists of secretions of the INTESTINAL GLANDS; BILE PIGMENTS; FATTY ACIDS; AMNIOTIC FLUID; and intrauterine debris. It constitutes the first stools passed by a newborn.	9.72	26	3	morphinane alkaloid; organic heteropentacyclic compound; tertiary amino compound	anaesthetic; drug allergen; environmental contaminant; geroprotector; mu-opioid receptor agonist; opioid analgesic; plant metabolite; vasodilator agent; xenobiotic
benzphetamine Benzphetamine: A sympathomimetic agent with properties similar to DEXTROAMPHETAMINE. It is used in the treatment of obesity. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1222). benzphetamine : Dextroamphetamine in which the the hydrogens attached to the amino group are substituted by a methyl and a benzyl group. A sympathomimetic agent with properties similar to dextroamphetamine, it is used as its hydrochloride salt in the treatment of obesity.	3.23	1	0	amphetamines; tertiary amine	adrenergic uptake inhibitor; appetite depressant; dopamine uptake inhibitor; sympathomimetic agent
cicaprost cicaprost: RN given refers to (3aS-(2E,3aalpha,4alpha(3R,4R),5beta,6aalpha))-isomer	2.04	1	0	monoterpenoid
clobetasol Clobetasol: A derivative of PREDNISOLONE with high glucocorticoid activity and low mineralocorticoid activity. Absorbed through the skin faster than FLUOCINONIDE, it is used topically in treatment of PSORIASIS but may cause marked adrenocortical suppression.. clobetasol : A 3-oxo-Delta(1),Delta(4)-steroid that is 16beta-methylpregna-1,4-diene-3,20-dione bearing hydroxy groups at the 11beta and 17alpha positions, fluorine at position 9, and a chlorine substituent at position 21. It is used as its 17alpha-propionate ester to treat various skin disorders, including exzema and psoriasis.	2.02	1	0	11beta-hydroxy steroid; 17alpha-hydroxy steroid; 20-oxo steroid; 3-oxo-Delta(1),Delta(4)-steroid; chlorinated steroid; fluorinated steroid; glucocorticoid; tertiary alpha-hydroxy ketone	anti-inflammatory drug; SMO receptor agonist
deamino arginine vasopressin Deamino Arginine Vasopressin: A synthetic analog of the pituitary hormone, ARGININE VASOPRESSIN. Its action is mediated by the VASOPRESSIN receptor V2. It has prolonged antidiuretic activity, but little pressor effects. It also modulates levels of circulating FACTOR VIII and VON WILLEBRAND FACTOR.	3.51	2	0	heterodetic cyclic peptide	diagnostic agent; renal agent; vasopressin receptor agonist
dexmedetomidine [no description available]	9.12	4	0	medetomidine	alpha-adrenergic agonist; analgesic; non-narcotic analgesic; sedative
fluticasone Fluticasone: A STEROID with GLUCOCORTICOID RECEPTOR activity that is used to manage the symptoms of ASTHMA; ALLERGIC RHINITIS, and ATOPIC DERMATITIS.. fluticasone : A trifluorinated corticosteroid used in the form of its propionate ester for treatment of allergic rhinitis.	2.02	1	0	11beta-hydroxy steroid; 17alpha-hydroxy steroid; 3-oxo-Delta(4) steroid; corticosteroid; fluorinated steroid; thioester	anti-allergic agent; anti-asthmatic drug
goserelin Goserelin: A synthetic long-acting agonist of GONADOTROPIN-RELEASING HORMONE. Goserelin is used in treatments of malignant NEOPLASMS of the prostate, uterine fibromas, and metastatic breast cancer.	3.23	1	0	organic molecular entity
halobetasol halobetasol: used in ointment to treat psoriasis; Ulobetasol cream contains 0.05% 6-fluoroclobetasol 17-propionate	2.02	1	0	corticosteroid hormone
iloprost Iloprost: An eicosanoid, derived from the cyclooxygenase pathway of arachidonic acid metabolism. It is a stable and synthetic analog of EPOPROSTENOL, but with a longer half-life than the parent compound. Its actions are similar to prostacyclin. Iloprost produces vasodilation and inhibits platelet aggregation.. iloprost : A carbobicyclic compound that is prostaglandin I2 in which the endocyclic oxygen is replaced by a methylene group and in which the (1E,3S)-3-hydroxyoct-1-en-1-yl side chain is replaced by a (3R)-3-hydroxy-4-methyloct-1-en-6-yn-1-yl group. A synthetic analogue of prostacyclin, it is used as the trometamol salt (generally by intravenous infusion) for the treatment of peripheral vascular disease and pulmonary hypertension.	2.04	1	0	carbobicyclic compound; monocarboxylic acid; secondary alcohol	platelet aggregation inhibitor; vasodilator agent
latanoprost Latanoprost: A prostaglandin F analog used to treat OCULAR HYPERTENSION in patients with GLAUCOMA.. latanoprost : A prostaglandin Falpha that is the isopropyl ester prodrug of latanoprost free acid. Used in the treatment of open-angle glaucoma and ocular hypertension.	2.02	1	0	isopropyl ester; prostaglandins Falpha; triol	antiglaucoma drug; antihypertensive agent; EC 4.2.1.1 (carbonic anhydrase) inhibitor; prodrug
nalbuphine Nalbuphine: A narcotic used as a pain medication. It appears to be an agonist at KAPPA RECEPTORS and an antagonist or partial agonist at MU RECEPTORS.	5.86	7	1	organic heteropentacyclic compound	mu-opioid receptor antagonist; opioid analgesic
nateglinide Nateglinide: A phenylalanine and cyclohexane derivative that acts as a hypoglycemic agent by stimulating the release of insulin from the pancreas. It is used in the treatment of TYPE 2 DIABETES.. nateglinide : An N-acyl-D-phenylalanine resulting from the formal condensation of the amino group of D-phenylalanine with the carboxy group of trans-4-isopropylcyclohexanecarboxylic acid. An orally-administered, rapidly-absorbed, short-acting insulinotropic agent, it is used for the treatment of type 2 diabetes mellitus.	3.58	2	0	phenylalanine derivative
rimexolone [no description available]	2.02	1	0	20-oxo steroid
sb 234551 SB 234551: a selective nonpeptide endothelin receptor antagonist	2	1	0
vinorelbine [no description available]	3.84	3	0	acetate ester; methyl ester; organic heteropentacyclic compound; organic heterotetracyclic compound; ring assembly; vinca alkaloid	antineoplastic agent; photosensitizing agent
silodosin silodosin: an alpha(1a)-adrenoceptor-selective antagonist; structure given in first source	3.23	1	0	indolecarboxamide
fluvoxamine Fluvoxamine: A selective serotonin reuptake inhibitor that is used in the treatment of DEPRESSION and a variety of ANXIETY DISORDERS.. fluvoxamine : An oxime O-ether that is benzene substituted by a (1E)-N-(2-aminoethoxy)-5-methoxypentanimidoyl group at position 1 and a trifluoromethyl group at position 4. It is a selective serotonin reuptake inhibitor that is used for the treatment of obsessive-compulsive disorder.	3.56	2	0	(trifluoromethyl)benzenes; 5-methoxyvalerophenone O-(2-aminoethyl)oxime	antidepressant; anxiolytic drug; serotonin uptake inhibitor
su 11248 [no description available]	3.23	1	0	monocarboxylic acid amide; pyrroles	angiogenesis inhibitor; antineoplastic agent; EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor; immunomodulator; neuroprotective agent; vascular endothelial growth factor receptor antagonist
romidepsin depsipeptide : A natural or synthetic compound having a sequence of amino and hydroxy carboxylic acid residues (usually alpha-amino and alpha-hydroxy acids), commonly but not necessarily regularly alternating.	2.04	1	0	cyclodepsipeptide; heterocyclic antibiotic; organic disulfide	antineoplastic agent; EC 3.5.1.98 (histone deacetylase) inhibitor
(6E)-7-[3-(4-fluorophenyl)-1-(propan-2-yl)-1H-indol-2-yl]-3,5-dihydroxyhept-6-enoic acid (6E)-7-[3-(4-fluorophenyl)-1-(propan-2-yl)-1H-indol-2-yl]-3,5-dihydroxyhept-6-enoic acid : A dihydroxy monocarboxylic acid that is N-isopropylindole which is substituted at position 3 by a p-fluorophenyl group and at position 2 by a 6-carboxy-3,5-dihydroxyhex-1-en-1-yl group. It has four possible diastereoisomers.	3.84	3	0	dihydroxy monocarboxylic acid; indoles; organofluorine compound
diamide Diamide: A sulfhydryl reagent which oxidizes sulfhydryl groups to the disulfide form. It is a radiation-sensitizing agent of anoxic bacterial and mammalian cells.	1.96	1	0	1,1'-azobis(N,N-dimethylformamide)
oxiconazole oxiconazole: RN given refers to parent cpd(Z)-isomer; structure given in first source. oxiconazole : An oxime O-ether that is the 2,4-dichlorobenzyl ether of the oxime obtained by formal condensation of hydroxylamine with the carbonyl group of acetopnenone in which the phenyl group is substituted by chlorines at positions 2 and 4, and in which one of the hydrogens of the methyl group is replaced by a 1H-imidazol-1-yl group. An antifungal agent, it is used (generally as the nitrate salt) in creams and powders for the topical treatment of fungal skin infections.	2.02	1	0	conazole antifungal drug; dichlorobenzene; imidazole antifungal drug; imidazoles; oxime O-ether	antiinfective agent
rubidium Rubidium: An element that is an alkali metal. It has an atomic symbol Rb, atomic number 37, and atomic weight 85.47. It is used as a chemical reagent and in the manufacture of photoelectric cells.	1.95	1	0	alkali metal atom
levorphanol Levorphanol: A narcotic analgesic that may be habit-forming. It is nearly as effective orally as by injection.	3.23	1	0	morphinane alkaloid
levallorphan Levallorphan: An opioid antagonist with properties similar to those of NALOXONE; in addition it also possesses some agonist properties. It should be used cautiously; levallorphan reverses severe opioid-induced respiratory depression but may exacerbate respiratory depression such as that induced by alcohol or other non-opioid central depressants. (From Martindale, The Extra Pharmacopoeia, 30th ed, p683)	1.94	1	0	morphinane alkaloid
naltrexone Naltrexone: Derivative of noroxymorphone that is the N-cyclopropylmethyl congener of NALOXONE. It is a narcotic antagonist that is effective orally, longer lasting and more potent than naloxone, and has been proposed for the treatment of heroin addiction. The FDA has approved naltrexone for the treatment of alcohol dependence.. naltrexone : An organic heteropentacyclic compound that is naloxone substituted in which the allyl group attached to the nitrogen is replaced by a cyclopropylmethyl group. A mu-opioid receptor antagonist, it is used to treat alcohol dependence.	3.84	3	0	cyclopropanes; morphinane-like compound; organic heteropentacyclic compound	antidote to opioid poisoning; central nervous system depressant; environmental contaminant; mu-opioid receptor antagonist; xenobiotic
morphine-6-glucuronide morphine-6-glucuronide: RN given refers to (5alpha,6alpha)-isomer	2.04	1	0	morphinane alkaloid
dextromethorphan Dextromethorphan: Methyl analog of DEXTRORPHAN that shows high affinity binding to several regions of the brain, including the medullary cough center. This compound is an NMDA receptor antagonist (RECEPTORS, N-METHYL-D-ASPARTATE) and acts as a non-competitive channel blocker. It is one of the widely used ANTITUSSIVES, and is also used to study the involvement of glutamate receptors in neurotoxicity.. dextromethorphan : A 6-methoxy-11-methyl-1,3,4,9,10,10a-hexahydro-2H-10,4a-(epiminoethano)phenanthrene in which the sterocenters at positions 4a, 10 and 10a have S-configuration. It is a prodrug of dextrorphan and used as an antitussive drug for suppressing cough.	3.23	1	0	6-methoxy-11-methyl-1,3,4,9,10,10a-hexahydro-2H-10,4a-(epiminoethano)phenanthrene	antitussive; environmental contaminant; neurotoxin; NMDA receptor antagonist; oneirogen; prodrug; xenobiotic
butorphanol Butorphanol: A synthetic morphinan analgesic with narcotic antagonist action. It is used in the management of severe pain.. butorphanol : Levorphanol in which a hydrogen at position 14 of the morphinan skeleton is substituted by hydroxy and one of the hydrogens of the N-methyl group is substituted by cyclopropyl. A semi-synthetic opioid agonist-antagonist analgesic, it is used as its (S,S)-tartaric acid salt for relief or moderate to severe pain.	5.42	4	1	morphinane alkaloid	antitussive; kappa-opioid receptor agonist; mu-opioid receptor agonist; opioid analgesic
cefodizime cefodizime: RN given refers to (6R-(6alpha,7beta(Z)))-isomer. cefodizime : A cephalosporin compound having 5-(carboxymethyl)-4-methyl-1,3-thiazol-2-yl]sulfanyl}methyl and [2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino side groups located at positions 3 and 7 respectively.	2.04	1	0	1,3-thiazoles; cephalosporin; oxime O-ether	antibacterial drug; EC 1.14.18.1 (tyrosinase) inhibitor
methylnaltrexone methylnaltrexone: RN given refers to parent cpd(5alpha)-isomer	2.04	1	0	phenanthrenes
cefixime [no description available]	3.84	3	0	cephalosporin	antibacterial drug; drug allergen
lisinopril Lisinopril: One of the ANGIOTENSIN-CONVERTING ENZYME INHIBITORS (ACE inhibitors), orally active, that has been used in the treatment of hypertension and congestive heart failure.	3.84	3	0	dipeptide	EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
benazepril benazepril: structure given in first source. benazepril : A benzazepine that is benazeprilat in which the carboxy group of the 2-amino-4-phenylbutanoic acid moiety has been converted to the corresponding ethyl ester. It is used (generally as its hydrochloride salt) as a prodrug for the angiotensin-converting enzyme inhibitor benazeprilat in the treatment of hypertension and heart failure.	3.56	2	0	benzazepine; dicarboxylic acid monoester; ethyl ester; lactam	EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor; prodrug
ramipril Ramipril: A long-acting angiotensin-converting enzyme inhibitor. It is a prodrug that is transformed in the liver to its active metabolite ramiprilat.. ramipril : A dipeptide that is the prodrug for ramiprilat, the active metabolite obtained by hydrolysis of the ethyl ester group. An angiotensin-converting enzyme (ACE) inhibitor, used to treat high blood pressure and congestive heart failure.. quark : Quarks comprise one of two classes of the fundamental particles. Quarks possess fractional electric charges and are not observed in free state. The word "quark" first appears in James Joyce's Finnegans Wake and has been chosen by Murray Gell-Mann as a name for fundamental building blocks of particles.	3.56	2	0	azabicycloalkane; cyclopentapyrrole; dicarboxylic acid monoester; dipeptide; ethyl ester	bradykinin receptor B2 agonist; cardioprotective agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor; matrix metalloproteinase inhibitor; prodrug
verteporfin (2R,2(1)S)-8-ethenyl-2(1),2(2)-bis(methoxycarbonyl)-17-(3-methoxy-3-oxopropyl)-2,7,12,18-tetramethyl-2,2(1)-dihydrobenzo[b]porphyrin-13-propanoic acid : The 2(1),2(2),17-trimethyl ester of (2R,2(1)S)-2(1),2(2)-dicarboxy-8-ethenyl-2,7,12,18-tetramethyl-2,2(1)-dihydrobenzo[b]porphyrin-13,17-dipropanoic acid.	3.23	1	0
indinavir sulfate Indinavir: A potent and specific HIV protease inhibitor that appears to have good oral bioavailability.	3.84	3	0	dicarboxylic acid diamide; N-(2-hydroxyethyl)piperazine; piperazinecarboxamide	HIV protease inhibitor
zimeldine Zimeldine: One of the SEROTONIN UPTAKE INHIBITORS formerly used for depression but was withdrawn worldwide in September 1983 because of the risk of GUILLAIN-BARRE SYNDROME associated with its use. (From Martindale, The Extra Pharmacopoeia, 29th ed, p385)	3.23	1	0	styrenes
enalapril Enalapril: An angiotensin-converting enzyme inhibitor that is used to treat HYPERTENSION and HEART FAILURE.. enalapril : A dicarboxylic acid monoester that is ethyl 4-phenylbutanoate in which a hydrogen alpha to the carboxy group is substituted by the amino group of L-alanyl-L-proline (S-configuration).	3.8	3	0	dicarboxylic acid monoester; dipeptide	antihypertensive agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor; geroprotector; prodrug
trientine hydrochloride [no description available]	3.23	1	0
n-methylscopolamine bromide scopolamine methobromide : A quaternary ammonium salt resulting from the reaction of the amino group of scopolamine with methyl bromide.	3.23	1	0
bleomycin [no description available]	3.23	1	0	bleomycin	antineoplastic agent; metabolite
heroin Heroin: A narcotic analgesic that may be habit-forming. It is a controlled substance (opium derivative) listed in the U.S. Code of Federal Regulations, Title 21 Parts 329.1, 1308.11 (1987). Sale is forbidden in the United States by Federal statute. (Merck Index, 11th ed). heroin : A morphinane alkaloid that is morphine bearing two acetyl substituents on the O-3 and O-6 positions. As with other opioids, heroin is used as both an analgesic and a recreational drug. Frequent and regular administration is associated with tolerance and physical dependence, which may develop into addiction. Its use includes treatment for acute pain, such as in severe physical trauma, myocardial infarction, post-surgical pain, and chronic pain, including end-stage cancer and other terminal illnesses.	1.94	1	0	morphinane alkaloid	mu-opioid receptor agonist; opioid analgesic; prodrug
enalaprilat anhydrous Enalaprilat: The active metabolite of ENALAPRIL and one of the potent, intravenously administered, ANGIOTENSIN-CONVERTING ENZYME INHIBITORS. It is an effective agent for the treatment of essential hypertension and has beneficial hemodynamic effects in heart failure. The drug produces renal vasodilation with an increase in sodium excretion.. enalaprilat dihydrate : The dihydrate form of enalaprilat, an angiotensin-converting enzyme (ACE) inhibitor that is used (often in the form of its prodrug, enalapril) in the treatment of hypertension and heart failure, for reduction of proteinuria and renal disease in patients with nephropathies, and for the prevention of stroke, myocardial infarction, and cardiac death in high-risk patients. Unlike enalapril, enalaprilat is not absorbed by mouth but is administered by intravenous injection.. enalaprilat (anhydrous) : Enalapril in which the ethyl ester group has been hydrolysed to the corresponding carboxylic acid. Enalaprilat is an angiotensin-converting enzyme (ACE) inhibitor and is used (often in the form of its prodrug, enalapril) in the treatment of hypertension and heart failure, for reduction of proteinuria and renal disease in patients with nephropathies, and for the prevention of stroke, myocardial infarction, and cardiac death in high-risk patients. Unlike enalapril, enalaprilat is not absorbed by mouth but is given by intravenous injection, usually as the dihydrate.	3.58	2	0	dicarboxylic acid; dipeptide	antihypertensive agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
ximelagatran ximelagatran: prodrug (via hydroxylation) of melagatran & a direct thrombin inhibitor; liver toxicity concerns so AZD0837 being developed to replace this. ximelagatran : A member of the class of azetidines that is melagatran in which the carboxylic acid group has been converted to the corresponding ethyl ester and in which the amidine group has been converted into the corresponding amidoxime. A prodrug for melagatran, ximelagatran was the first orally available direct thrombin inhibitor to be brought to market as an anticoagulant, but was withdrawn in 2006 following reports of it causing liver damage.	3.23	1	0	amidoxime; azetidines; carboxamide; ethyl ester; hydroxylamines; secondary amino compound; secondary carboxamide; tertiary carboxamide	anticoagulant; EC 3.4.21.5 (thrombin) inhibitor; prodrug; serine protease inhibitor
cefuroxime [no description available]	3.84	3	0	3-(carbamoyloxymethyl)cephalosporin; furans; oxime O-ether	drug allergen
ceftriaxone [no description available]	3.84	3	0	1,2,4-triazines; 1,3-thiazoles; cephalosporin; oxime O-ether	antibacterial drug; drug allergen; EC 3.5.2.6 (beta-lactamase) inhibitor
cefepime Cefepime: A fourth-generation cephalosporin antibacterial agent that is used in the treatment of infections, including those of the abdomen, urinary tract, respiratory tract, and skin. It is effective against PSEUDOMONAS AERUGINOSA and may also be used in the empiric treatment of FEBRILE NEUTROPENIA.. cefepime : A cephalosporin bearing (1-methylpyrrolidinium-1-yl)methyl and (2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetamido groups at positions 3 and 7, respectively, of the cephem skeleton.	3.84	3	0	cephalosporin; oxime O-ether	antibacterial drug
hr 810 cefpirome: structure in first source. cefpirome : A fourth-generation cephalosporin antibiotic having 6,7-dihydro-5H-cyclopenta[b]pyridinium-1-ylmethyl and [(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino side groups located at positions 3 and 7 respectively.	2.04	1	0	cephalosporin; cyclopentapyridine
pafuramidine pafuramidine: a prodrug of furamidine	3.23	1	0
ceftazidime [no description available]	3.84	3	0	cephalosporin; oxime O-ether	antibacterial drug; drug allergen; EC 2.4.1.129 (peptidoglycan glycosyltransferase) inhibitor
trandolapril trandolapril : A heterobicylic compound that is (2S,3aR,7aS)-1-[(2S)-2-aminopropanoyl]octahydro-1H-indole-2-carboxylic acid in which the hydrogen of the amino group is substituted by a (2R)-1-ethoxy-1-oxo-4-phenylbutan-2-yl group. It is a angiotensin-converting enzyme inhibitor and a prodrug used for the treatment of hypertension.	3.56	2	0	dicarboxylic acid monoester; dipeptide; ethyl ester; organic heterobicyclic compound; secondary amino compound; tertiary carboxamide	antihypertensive agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor; prodrug
pregabalin Pregabalin: A gamma-aminobutyric acid (GABA) derivative that functions as a CALCIUM CHANNEL BLOCKER and is used as an ANTICONVULSANT as well as an ANTI-ANXIETY AGENT. It is also used as an ANALGESIC in the treatment of NEUROPATHIC PAIN and FIBROMYALGIA.. pregabalin : A gamma-amino acid that is gamma-aminobutyric acid (GABA) carrying an isobutyl substitutent at the beta-position (the S-enantiomer). Binds with high affinity to the alpha2-delta site (an auxiliary subunit of voltage-gated calcium channels) in central nervous system tissues.	3.23	1	0	gamma-amino acid	anticonvulsant; calcium channel blocker
cefetamet cefetamet: active against Neisseria gonorrhoeae; structure given in first source. cefetamet : A cephalosporin compound having methyl and [(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino side-groups; a cephalosporin antibiotic active against Neisseria gonorrhoeae.	2.04	1	0	cephalosporin
alvimopan anhydrous alvimopan: mu opioid receptor antagonist; intended to treat constipation in patients taking opiates for pain	3.23	1	0	peptide
aliskiren aliskiren: orally active nonpeptidic renin inhibitor. aliskiren : A monomethoxybenzene compound having a 3-methoxypropoxy group at the 2-position and a multi-substituted branched alkyl substituent at the 4-position.	3.23	1	0	monocarboxylic acid amide; monomethoxybenzene	antihypertensive agent
guanabenz Guanabenz: An alpha-2 selective adrenergic agonist used as an antihypertensive agent.	2.02	1	0	dichlorobenzene
famotidine [no description available]	3.84	3	0	1,3-thiazoles; guanidines; sulfonamide	anti-ulcer drug; H2-receptor antagonist; P450 inhibitor
cefotaxime Cefotaxime: Semisynthetic broad-spectrum cephalosporin.. cefotaxime : A cephalosporin compound having acetoxymethyl and [2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino side groups.	3.84	3	0	1,3-thiazoles; cephalosporin; oxime O-ether	antibacterial drug; drug allergen
aztreonam [no description available]	3.84	3	0	beta-lactam antibiotic allergen; monobactam	antibacterial drug; drug allergen; EC 2.4.1.129 (peptidoglycan glycosyltransferase) inhibitor
cci 15641 [no description available]	2.02	1	0	cephalosporin
ginkgolide b [no description available]	2.04	1	0
saralasin Saralasin: An octapeptide analog of angiotensin II (bovine) with amino acids 1 and 8 replaced with sarcosine and alanine, respectively. It is a highly specific competitive inhibitor of angiotensin II that is used in the diagnosis of HYPERTENSION.	1.96	1	0	oligopeptide
cefpodoxime [no description available]	3.56	2	0	carboxylic acid; cephalosporin	antibacterial drug
palonosetron Palonosetron: Isoquinoline and quinuclidine derivative that acts as a 5-HT3 RECEPTOR antagonist. It is used in the prevention of nausea and vomiting induced by cytotoxic chemotherapy, and for the prevention of post-operative nausea and vomiting.. palonosetron : An organic heterotricyclic compound that is an antiemetic used (as its hydrochloride salt) in combination with netupitant (under the trade name Akynzeo) to treat nausea and vomiting in patients undergoing cancer chemotherapy.	3.58	2	0	azabicycloalkane; delta-lactam; organic heterotricyclic compound	antiemetic; serotonergic antagonist
cefatrizine Cefatrizine: Orally active semisynthetic cephalosporin antibiotic with broad-spectrum activity.. cefatrizine : A cephalosporin compound having (1H-1,2,3-triazol-4-ylsulfanyl)methyl and [(2R)-2-amino-2-(4-hydroxyphenyl)]acetamido side-groups. An antibacterial drug first prepared in the 1970s, it has more recently been found to be an inhibitor of eukaryotic elongation factor-2 kinase (eEF2K), which is known to regulate apoptosis, autophagy and ER stress in many types of human cancers.	2.04	1	0	amino acid amide; carboxylic acid; cephalosporin; phenols; semisynthetic derivative; triazoles	antibacterial drug; EC 2.7.11.20 (elongation factor 2 kinase) inhibitor
eniporide eniporide: inhibits NHE-1 isoform; structure in first source	2.04	1	0
cilastatin [no description available]	2.04	1	0	carboxamide; L-cysteine derivative; non-proteinogenic L-alpha-amino acid; organic sulfide	EC 3.4.13.19 (membrane dipeptidase) inhibitor; environmental contaminant; protease inhibitor; xenobiotic
rifaximin [no description available]	3.23	1	0	acetate ester; cyclic ketal; lactam; macrocycle; organic heterohexacyclic compound; rifamycins; semisynthetic derivative	antimicrobial agent; gastrointestinal drug; orphan drug
everolimus [no description available]	3.23	1	0	cyclic acetal; cyclic ketone; ether; macrolide lactam; primary alcohol; secondary alcohol	anticoronaviral agent; antineoplastic agent; geroprotector; immunosuppressive agent; mTOR inhibitor
ixabepilone [no description available]	3.58	2	0	1,3-thiazoles; beta-hydroxy ketone; epoxide; lactam; macrocycle	antineoplastic agent; microtubule-destabilising agent
dirithromycin [no description available]	2.02	1	0	macrolide antibiotic	prodrug
azlocillin Azlocillin: A semisynthetic ampicillin-derived acylureido penicillin.. azlocillin : A semisynthetic penicillin having a 6beta-{(2R)-2-[(2-oxoimidazolidine-1-carbonyl)amino]-2-phenylacetyl}amino side-group. It is an antibiotic used in treating infections caused by Pseudomonas aeruginosa, Escherichia coli and Haemophilus influenzae.	2.04	1	0	penicillin allergen; penicillin; semisynthetic derivative	antibacterial drug
verlukast verlukast: LTD4 receptor antagonist	2.04	1	0
cefpodoxime proxetil cefpodoxime proxetil: structure given in first source; prodrug for cefpodoxime. cefpodoxime proxetil : The 1-[(isopropoxycarbonyl)oxy]ethyl (proxetil) ester prodrug of cefpodoxime. After swallowing, hydrolysis of the ester group occurs in the intestinal epithelium, to release active cefpodoxime in the bloodstream. It is used to treat acute otitis media, pharyngitis, and sinusitis.	2.02	1	0	carboxylic acid; carboxylic ester; cephalosporin	antibacterial drug; prodrug
ceftizoxime [no description available]	3.84	3	0	cephalosporin	antibacterial drug
1-methyl-d-lysergic acid butanolamide [no description available]	3.23	1	0	ergot alkaloid; monocarboxylic acid amide	serotonergic antagonist; sympatholytic agent; vasoconstrictor agent
carumonam carumonam: structure given in first source; RN given refers to (2S-(2alpha,3alpha(Z))-isomer. carumonam : An N-sulfonated monobactam antibiotic.	2.04	1	0	monobactam	antibacterial drug
nitrofurantoin Nitrofurantoin: A urinary anti-infective agent effective against most gram-positive and gram-negative organisms. Although sulfonamides and antibiotics are usually the agents of choice for urinary tract infections, nitrofurantoin is widely used for prophylaxis and long-term suppression.. nitrofurantoin : An imidazolidine-2,4-dione that is hydantoin substituted at position 1 by a [(5-nitro-2-furyl)methylene]amino group. An antibiotic that damages bacterial DNA.	4.18	5	0	imidazolidine-2,4-dione; nitrofuran antibiotic; organonitrogen heterocyclic antibiotic; organooxygen heterocyclic antibiotic	antibacterial drug; antiinfective agent; hepatotoxic agent
morphinans Morphinans: Compounds based on a partially saturated iminoethanophenanthrene, which can be described as ethylimino-bridged benzo-decahydronaphthalenes. They include some of the OPIOIDS found in PAPAVER that are used as ANALGESICS.	4.04	3	1	isoquinoline alkaloid fundamental parent; morphinane alkaloid
eritoran eritoran : A lipid A derivative used for the treatment of severe sepsis.	2.04	1	0	lipid As
dantrolene [no description available]	3.84	3	0
cefdinir [no description available]	3.23	1	0	cephalosporin; ketoxime	antibacterial drug
etonogestrel [no description available]	3.23	1	0	17beta-hydroxy steroid; 3-oxo-Delta(4) steroid; terminal acetylenic compound	contraceptive drug; female contraceptive drug; progestin
tiapamil hydrochloride Tiapamil Hydrochloride: A phenylethylamine derivative that acts as a calcium antagonist showing hemodynamic effects in patients with acute myocardial infarction.	1.97	1	0
montirelin montirelin: structure given in first source	1.97	1	0	oligopeptide
artesunate artesunic acid: RN given for (3R-(3alpha,5abeta,6beta,8abeta,9alpha,10alpha,12beta,(2aR*))-isomer; succinic ester of artemether	2.04	1	0	artemisinin derivative; cyclic acetal; dicarboxylic acid monoester; hemisuccinate; semisynthetic derivative; sesquiterpenoid	antimalarial; antineoplastic agent; ferroptosis inducer
dexniguldipine niguldipine: structure given in first source; clinical modulator of multidrug resistance	2.04	1	0	diarylmethane
napsagatran napsagatran: structure given in first source	2.04	1	0
temsirolimus [no description available]	3.58	2	0	macrolide lactam
dutasteride Dutasteride: A 5-ALPHA-REDUCTASE INHIBITOR that is reported to inhibit both type-1 and type2 isoforms of the enzyme and is used to treat BENIGN PROSTATIC HYPERPLASIA.. dutasteride : An aza-steroid that is inasteride in which the tert-butyl group is replaced by a 2,5-bis(trifluoromethyl)phenyl group. A synthetic 4-azasteroid, dutasteride is a selective inhibitor of both the type 1 and type 2 isoforms of steroid 5alpha-reductase, an intracellular enzyme that converts testosterone to 5alpha-dihydrotestosterone. Dutasteride is used for the treatment of symptomatic benign prostatic hyperplasia in men with an enlarged prostate gland.	3.23	1	0	(trifluoromethyl)benzenes; aza-steroid; delta-lactam	antihyperplasia drug; EC 1.3.1.22 [3-oxo-5alpha-steroid 4-dehydrogenase (NADP(+))] inhibitor
lu 208075 ambrisentan: an ET(A) receptor antagonist and antihypertensive agent; studied for use in pulmonary arterial hypertension	3.23	1	0	diarylmethane
bms188797 [no description available]	2.04	1	0
bibx 1382bs BIBX 1382BS: an ErbB receptor kinase inhibitor; no further information available 4/2001	3.23	1	0	substituted aniline
fesoterodine fesoterodine: a muscarinic antagonist for treatment of overactive bladder	3.23	1	0	diarylmethane
chloralose Chloralose: A derivative of CHLORAL HYDRATE that was used as a sedative but has been replaced by safer and more effective drugs. Its most common use is as a general anesthetic in animal experiments.	8.65	10	0
azimilide azimilide: structure given in first source; RN given refers to dihydrochloride	2.04	1	0	imidazolidine-2,4-dione
fla-136 FLA-136: RN given refers to FLA 136	1.96	1	0
gemifloxacin Gemifloxacin: A naphthyridine and fluoroquinolone derivative antibacterial agent and DNA TOPOISOMERASE II inhibitor that is used for the treatment of community-acquired pneumonia and acute bacterial infections associated with chronic bronchitis.. gemifloxacin : A 1,4-dihydro-1,8-naphthyridine with a carboxy group at the 3-position, an oxo sustituent at the 4-position, a fluoro substituent at the 5-position and a substituted pyrrolin-1-yl group at the 7-position.	3.23	1	0	1,8-naphthyridine derivative; fluoroquinolone antibiotic; monocarboxylic acid; quinolone antibiotic	antibacterial drug; antimicrobial agent; topoisomerase IV inhibitor
dexlansoprazole Dexlansoprazole: The R-isomer of lansoprazole that is used to treat severe GASTROESOPHAGEAL REFLUX DISEASE.	3.23	1	0	benzimidazoles; sulfoxide
fosinopril [no description available]	3.56	2	0
armodafinil armodafinil : A 2-[(diphenylmethyl)sulfinyl]acetamide that has R configuration at the sulfur atom. Like its racemate, modafinil, it is used for the treatment of sleeping disorders such as narcolepsy, obstructive sleep apnoea, and shift-work sleep disorder. Peak concentration in the blood later occurs later following administration than with modafinil, so it is thought that armodafinil may be more effective than modafinil in treating people with excessive daytime sleepiness.	3.23	1	0	2-[(diphenylmethyl)sulfinyl]acetamide	central nervous system stimulant; eugeroic
alphadolone alphadolone: RN given refers to (3alpha,5alpha)-isomer	2.37	2	0
tomopenem [no description available]	2.04	1	0
sincalide Sincalide: An octapeptide hormone present in the intestine and brain. When secreted from the gastric mucosa, it stimulates the release of bile from the gallbladder and digestive enzymes from the pancreas.	3.23	1	0	oligopeptide
tapentadol Tapentadol: An opioid analgesic, MU OPIOID RECEPTOR agonist, and noradrenaline reuptake inhibitor that is used in the treatment of moderate to severe pain, and of pain associated with DIABETIC NEUROPATHIES.	3.23	1	0	alkylbenzene
bb-83698 BB-83698: peptide deformylase inhibitor	2.04	1	0
pentagastrin Pentagastrin: A synthetic pentapeptide that has effects like gastrin when given parenterally. It stimulates the secretion of gastric acid, pepsin, and intrinsic factor, and has been used as a diagnostic aid.	3.23	1	0	organic molecular entity
mocetinostat mocetinostat: undergoing phase II clinical trials for treatment of cancer. mocetinostat : A benzamide obtained by formal condensation of the carboxy group of 4-({[4-(pyridin-3-yl)pyrimidin-2-yl]amino}methyl)benzoic acid with one of the amino groups of benzene-1,2-diamine. It is an orally active and isotype-selective HDAC inhibitor which exhibits antitumour activity (IC50 = 0.15, 0.29, 1.66 and 0.59 muM for HDAC1, HDAC2, HDAC3 and HDAC11).	3.78	2	1	aminopyrimidine; benzamides; pyridines; secondary amino compound; secondary carboxamide; substituted aniline	antineoplastic agent; apoptosis inducer; autophagy inducer; cardioprotective agent; EC 3.5.1.98 (histone deacetylase) inhibitor; hepatotoxic agent
cefditoren cefditoren: structure given in first source; RN given refers to the (6R-(3(Z),6alpha,7beta(Z)))-isomer. cefditoren : A broad spectrum, third-generation cephalosporin antibiotic with (Z)-2-(4-methyl-1,3-thiazol-5-yl)ethenyl and (2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetamido groups at positions 3 and 7, respectively, of the cephem skeleton. Generally administered as its orally absorbed pivaloyloxymethyl ester prodrug, it is used for the treatment of mild to moderate infections caused by susceptible strains of microorganisms in acute bacterial exacerbation of chronic bronchitis, community-acquired pneumonia, pharyngitis/tonsillitis, and uncomplicated skin and skin-structure infections.	3.23	1	0	carboxylic acid; cephalosporin	antibacterial drug
zotarolimus zotarolimus: synthetic analog of rapamycin; structure in first source	2.04	1	0	lactam; macrolide
gentamicin sulfate [no description available]	2.04	1	0
bn 52020 [no description available]	2.04	1	0
pazopanib pazopanib: a protein kinase inhibitor. pazopanib : A pyrimidine that is 5-(pyrimidin-2-yl}amino-2-methylbenzenesulfonamide substituted at position 4 by a (2,3-dimethylindazol-6-yl)(methyl)amino group. Used as its hydrochloride salt for treatment of kidney cancer.	3.23	1	0	aminopyrimidine; indazoles; sulfonamide	angiogenesis modulating agent; antineoplastic agent; tyrosine kinase inhibitor; vascular endothelial growth factor receptor antagonist
prasugrel hydrochloride Prasugrel Hydrochloride: A piperazine derivative and PLATELET AGGREGATION INHIBITOR that is used to prevent THROMBOSIS in patients with ACUTE CORONARY SYNDROME; UNSTABLE ANGINA and MYOCARDIAL INFARCTION, as well as in those undergoing PERCUTANEOUS CORONARY INTERVENTIONS.. prasugrel hydrochloride : A racemate comprising equal amounts of (R)- and (S)-prasugrel hydrochloride. Used to prevent blood clots in people with acute coronary syndrome who are undergoing a procedure after a recent heart attack or stroke, and in people with certain disorders of the heart or blood vessels.	3.23	1	0
baci-im [no description available]	3.23	1	0	homodetic cyclic peptide; polypeptide; zwitterion	antibacterial agent; antimicrobial agent
bms 477118 [no description available]	3.23	1	0	adamantanes; azabicycloalkane; monocarboxylic acid amide; nitrile; tertiary alcohol	EC 3.4.14.5 (dipeptidyl-peptidase IV) inhibitor; hypoglycemic agent
nystatin a1 Nystatin: Macrolide antifungal antibiotic complex produced by Streptomyces noursei, S. aureus, and other Streptomyces species. The biologically active components of the complex are nystatin A1, A2, and A3.. nystatin : A heterogeneous mixture of polyene compounds produced by cultures of Streptomyces noursei. It mainly consists of three biologically active components designated nystatin A1, nystatin A2, and nystatin A3. It is used to treat oral and dermal fungal infections.. nystatin A1 : A polyene macrolide antibiotic; part of the nystatin complex produced by several Streptomyces species. It is an antifungal antibiotic used for the treatment of topical fungal infections caused by a broad spectrum of fungal pathogens comprising yeast-like and filamentous species.	3.56	2	0	nystatins
milnacipran [no description available]	3.23	1	0	acetamides
vindesine [no description available]	2.04	1	0
technetium tc 99m exametazime Technetium Tc 99m Exametazime: A gamma-emitting RADIONUCLIDE IMAGING agent used in the evaluation of regional cerebral blood flow and in non-invasive dynamic biodistribution studies and MYOCARDIAL PERFUSION IMAGING. It has also been used to label leukocytes in the investigation of INFLAMMATORY BOWEL DISEASES.	1.98	1	0
indocyanine green Indocyanine Green: A tricarbocyanine dye that is used diagnostically in liver function tests and to determine blood volume and cardiac output.	2	1	0	1,1-diunsubstituted alkanesulfonate; benzoindole; cyanine dye
scopolamine hydrobromide [no description available]	6.73	19	1
pituitrin Pituitrin: A substance or extract from the neurohypophysis (PITUITARY GLAND, POSTERIOR).	3.35	7	0
jaw [no description available]	2.36	2	0	indolecarboxamide
nad NAD(1-) : An anionic form of nicotinamide adenine dinucleotide arising from deprotonation of the two OH groups of the diphosphate moiety.	1.94	1	0	organophosphate oxoanion	cofactor; human metabolite; hydrogen acceptor; Saccharomyces cerevisiae metabolite
bisaramil [no description available]	2.04	1	0
cosyntropin Cosyntropin: A synthetic peptide that is identical to the 24-amino acid segment at the N-terminal of ADRENOCORTICOTROPIC HORMONE. ACTH (1-24), a segment similar in all species, contains the biological activity that stimulates production of CORTICOSTEROIDS in the ADRENAL CORTEX.. cosyntropin : A synthetic peptide that is identical to the 24-amino acid segment at the N-terminal of adrenocorticotropic hormone (corticotropin). A segment similar in all species, it contains the biological activity that stimulates production of corticosteroids in the adrenal cortex. It is used diagnostically to investigate adrenocortical insufficiency.	1.96	1	0
bivalirudin bivalirudin: designed to bind to the alpha-thrombin catalytic site and anion-binding exosite for fibrin(ogen) recognition. bivalirudin : A synthetic peptide of 20 amino acids, comprising D-Phe, Pro, Arg, Pro, Gly, Gly, Gly, Gly, Asn, Gly, Asp, Phe, Glu, Glu, Ile, Pro, Glu, Glu, Tyr, and Leu in sequence. A congener of hirudin (a naturally occurring drug found in the saliva of the medicinal leech), it a specific and reversible inhibitor of thrombin, and is used as an anticoagulant.	3.23	1	0	polypeptide	anticoagulant; EC 3.4.21.5 (thrombin) inhibitor
atrial natriuretic factor Atrial Natriuretic Factor: A potent natriuretic and vasodilatory peptide or mixture of different-sized low molecular weight PEPTIDES derived from a common precursor and secreted mainly by the HEART ATRIUM. All these peptides share a sequence of about 20 AMINO ACIDS.	1.97	1	0	polypeptide
teicoplanin teicoplanin A2-1 : A teicoplanin A2 that has (4Z)-dec-4-enoyl as the variable N-acyl group.	2.04	1	0
enfuvirtide Enfuvirtide: A synthetic 36-amino acid peptide that corresponds to the heptad repeat sequence of HIV-1 gp41. It blocks HIV cell fusion and viral entry and is used with other anti-retrovirals for combination therapy of HIV INFECTIONS and AIDS.. enfuvirtide : A synthetic 36-amino acid peptide consisting of N-acetyltyrosyl, threonyl, seryl, leucyl, isoleucyl, histidyl, seryl, leucyl, isoleucyl, alpha-glutamyl, alpha-glutamyl, seryl, glutaminyl, asparaginyl, glutaminyl, glutaminyl, alpha-glutamyl, lysyl, asparaginyl, alpha-glutamyl, alpha-glutamyl, alpha-glutamyl, leucyl, leucyl, alpha-glutamyl, leucyl, alpha-aspartyl, lysyl, tryptophyl, alanyl, seryl, leucyl, tryptophyl, asparaginyl, tryptophyl, and phenylalaninamide residues joined in sequence. An HIV fusion inhibitor, it was the first of a novel class of antiretroviral drugs used in combination therapy for the treatment of HIV-1 infection. It interferes with entry of HIV into cells by binding to the gp41 sub-unit of the viral envelope glycoprotein, so inhibiting fusion of viral and cellular membranes.	3.23	1	0
ganirelix [no description available]	3.23	1	0	polypeptide
beta-endorphin beta-Endorphin: A 31-amino acid peptide that is the C-terminal fragment of BETA-LIPOTROPIN. It acts on OPIOID RECEPTORS and is an analgesic. Its first four amino acids at the N-terminal are identical to the tetrapeptide sequence of METHIONINE ENKEPHALIN and LEUCINE ENKEPHALIN.. beta-endorphin : A polypeptide consisting of 31 amino acid residues in the sequence Tyr-Gly-Gly-Phe-Met-Thr-Ser-Glu-Lys-Ser-Gln-Thr-Pro-Leu-Val-Thr-Leu-Phe-Lys-Asn-Ala-Ile-Ile-Lys-Asn-Ala-Tyr-Lys-Lys-Gly-Glu. It is an endogenous opioid peptide neurotransmitter found in the neurons of both the central and peripheral nervous system and results from processing of the precursor protein proopiomelanocortin (POMC).	3.35	1	1
teriparatide [no description available]	3.23	1	0	polypeptide
salmon calcitonin [no description available]	3.23	1	0	heterodetic cyclic peptide; peptide hormone; polypeptide	bone density conservation agent; metabolite
ly-146032 [no description available]	3.58	2	0	heterodetic cyclic peptide; lipopeptide antibiotic; lipopeptide; macrocycle; macrolide	antibacterial drug; bacterial metabolite; calcium-dependent antibiotics
dalbavancin [no description available]	2.04	1	0	carbohydrate acid derivative; glycopeptide; monosaccharide derivative; semisynthetic derivative	antibacterial drug; antimicrobial agent
acetyl-2-naphthylalanyl-3-chlorophenylalanyl-1-oxohexadecyl-seryl-4-aminophenylalanyl(hydroorotyl)-4-aminophenylalanyl(carbamoyl)-leucyl-ilys-prolyl-alaninamide acetyl-2-naphthylalanyl-3-chlorophenylalanyl-1-oxohexadecyl-seryl-4-aminophenylalanyl(hydroorotyl)-4-aminophenylalanyl(carbamoyl)-leucyl-ILys-prolyl-alaninamide: FE-200486 is the acetate salt	3.23	1	0	polypeptide
exenatide [no description available]	3.23	1	0
endothelin-1 Endothelin-1: A 21-amino acid peptide produced in a variety of tissues including endothelial and vascular smooth-muscle cells, neurons and astrocytes in the central nervous system, and endometrial cells. It acts as a modulator of vasomotor tone, cell proliferation, and hormone production. (N Eng J Med 1995;333(6):356-63)	2	1	0
mesna Mesna: A sulfhydryl compound used to prevent urothelial toxicity by inactivating metabolites from ANTINEOPLASTIC AGENTS, such as IFOSFAMIDE or CYCLOPHOSPHAMIDE.	3.56	2	0	organosulfonic acid
sodium oxybate Sodium Oxybate: The sodium salt of 4-hydroxybutyric acid. It is used for both induction and maintenance of ANESTHESIA.	1.99	1	0
cefamandole nafate [no description available]	2.02	1	0	organic sodium salt	antibacterial drug; prodrug
sodium lactate Sodium Lactate: The sodium salt of racemic or inactive lactic acid. It is a hygroscopic agent used intravenously as a systemic and urinary alkalizer.. sodium lactate : An organic sodium salt having lactate as the counterion.	3.23	1	0	lactate salt; organic sodium salt	food acidity regulator; food preservative
sodium iothalamate [no description available]	3.23	1	0
picrotoxin Picrotoxin: A noncompetitive antagonist at GABA-A receptors and thus a convulsant. Picrotoxin blocks the GAMMA-AMINOBUTYRIC ACID-activated chloride ionophore. Although it is most often used as a research tool, it has been used as a CNS stimulant and an antidote in poisoning by CNS depressants, especially the barbiturates.. picrotoxin : A mixture consisting of equimolar amounts of picrotoxinin and picrotin found in the climbing plant Anamirta cocculus.	2.36	2	0
cardiovascular agents Cardiovascular Agents: Agents that affect the rate or intensity of cardiac contraction, blood vessel diameter, or blood volume.	2	1	0
cetrorelix cetrorelix: LHRH antagonist. cetrorelix : A synthetic ten-membered oligopeptide comprising N-acetyl-3-(naphthalen-2-yl)-D-alanyl, 4-chloro-D-phenylalanyl, 3-(pyridin-3-yl)-D-alanyl, L-seryl, L-tyrosyl, N(5)-carbamoyl-D-ornithyl, L-leucyl, L-arginyl, L-prolyl, and D-alaninamide residues coupled in sequence. A gonadotrophin-releasing hormone (GnRH) antagonist, it is used for treatment of infertility and of hormone-sensitive cancers of the prostate and breast.	3.58	2	0	oligopeptide	antineoplastic agent; GnRH antagonist
piperidines Piperidines: A family of hexahydropyridines.	6.58	11	5
ascorbic acid Ascorbic Acid: A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant.. L-ascorbic acid : The L-enantiomer of ascorbic acid and conjugate acid of L-ascorbate.. L-ascorbate : The L-enantiomer of ascorbate and conjugate base of L-ascorbic acid, arising from selective deprotonation of the 3-hydroxy group. Required for a range of essential metabolic reactions in all animals and plants.. vitamin C : Any member of a group of vitamers that belong to the chemical structural class called butenolides that exhibit biological activity against vitamin C deficiency in animals. The vitamers include L-ascorbic acid and its salt, ionized and oxidized forms.	3.23	1	0	ascorbic acid; vitamin C	coenzyme; cofactor; flour treatment agent; food antioxidant; food colour retention agent; geroprotector; plant metabolite; skin lightening agent
raltegravir [no description available]	3.23	1	0	1,2,4-oxadiazole; dicarboxylic acid amide; hydroxypyrimidine; monofluorobenzenes; pyrimidone; secondary carboxamide	antiviral drug; HIV-1 integrase inhibitor
tetracycline Tetracycline: A naphthacene antibiotic that inhibits AMINO ACYL TRNA binding during protein synthesis.. tetracycline : A broad-spectrum polyketide antibiotic produced by the Streptomyces genus of actinobacteria.	3.84	3	0
chlortetracycline Chlortetracycline: A TETRACYCLINE with a 7-chloro substitution.. chlortetracycline : A member of the class of tetracyclines with formula C22H23ClN2O8 isolated from Streptomyces aureofaciens.	2.04	1	0
oxytetracycline, anhydrous Oxytetracycline: A TETRACYCLINE analog isolated from the actinomycete STREPTOMYCES RIMOSUS and used in a wide variety of clinical conditions.. oxytetracycline : A tetracycline used for treatment of infections caused by a variety of Gram positive and Gram negative microorganisms including Mycoplasma pneumoniae, Pasteurella pestis, Escherichia coli, Haemophilus influenzae (respiratory infections), and Diplococcus pneumoniae.	3.84	3	0
minocycline Minocycline: A TETRACYCLINE analog, having a 7-dimethylamino and lacking the 5 methyl and hydroxyl groups, which is effective against tetracycline-resistant STAPHYLOCOCCUS infections.. minocycline : A tetracycline analogue having a dimethylamino group at position 7 and lacking the methyl and hydroxy groups at position 5.	3.84	3	0
salicylates Salicylates: The salts or esters of salicylic acids, or salicylate esters of an organic acid. Some of these have analgesic, antipyretic, and anti-inflammatory activities by inhibiting prostaglandin synthesis.. hydroxybenzoate : Any benzoate derivative carrying a single carboxylate group and at least one hydroxy substituent.. salicylates : Any salt or ester arising from reaction of the carboxy group of salicylic acid, or any ester resulting from the condensation of the phenolic hydroxy group of salicylic acid with an organic acid.. salicylate : A monohydroxybenzoate that is the conjugate base of salicylic acid.	2.34	2	0	monohydroxybenzoate	plant metabolite
piroxicam [no description available]	3.56	2	0	benzothiazine; monocarboxylic acid amide; pyridines	analgesic; antirheumatic drug; cyclooxygenase 1 inhibitor; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; non-steroidal anti-inflammatory drug
roquinimex roquinimex: structure in first source	2.04	1	0	aromatic amide
meclocycline [no description available]	2.02	1	0
mobic Meloxicam: A benzothiazine and thiazole derivative that acts as a NSAID and cyclooxygenase-2 (COX-2) inhibitor. It is used in the treatment of RHEUMATOID ARTHRITIS; OSTEOARTHRITIS; and ANKYLOSING SPONDYLITIS.. meloxicam : A benzothiazine that is piroxicam in which the pyridin-2-yl group is replaced by a 5-methyl-1,3-thiazol-2-yl group. A non-steroidal anti-inflammatory drug and selective inhibitor of COX-2, it is used particularly for the management of rheumatoid arthritis.	3.58	2	0	1,3-thiazoles; benzothiazine; monocarboxylic acid amide	analgesic; antirheumatic drug; cyclooxygenase 2 inhibitor; non-steroidal anti-inflammatory drug
mobiflex tenoxicam : A thienothiazine-derived monocarboxylic acid amide obtained by formal condensation of the carboxy group of 4-hydroxy-2-methylthieno[2,3-e][1,2]thiazine-3-carboxylic acid 1,1-dioxide with the amino group of 2-aminopyridine. Used for the treatment of pain and inflammation in osteoarthritis and rheumatoid arthritis. It is also indicated for short term treatment of acute musculoskeletal disorders including strains, sprains and other soft-tissue injuries.	2.04	1	0	heteroaryl hydroxy compound; monocarboxylic acid amide; pyridines; thienothiazine	antipyretic; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; non-narcotic analgesic; non-steroidal anti-inflammatory drug
isoxicam isoxicam : A monocarboxylic acid amide that is piroxicam in which the pyrid-2-yl group is replaced by a 5-methyl-1,2-oxazol-3-yl group. A non-steroidal anti-inflammatory drug, it was withdrawn from the market in the 1980s following its association with cases of Stevens-Johnson syndrome.	2.04	1	0	benzothiazine; isoxazoles; monocarboxylic acid amide	antirheumatic drug; non-steroidal anti-inflammatory drug
warfarin Warfarin: An anticoagulant that acts by inhibiting the synthesis of vitamin K-dependent coagulation factors. Warfarin is indicated for the prophylaxis and/or treatment of venous thrombosis and its extension, pulmonary embolism, and atrial fibrillation with embolization. It is also used as an adjunct in the prophylaxis of systemic embolism after myocardial infarction. Warfarin is also used as a rodenticide.. warfarin : A racemate comprising equal amounts of (R)- and (S)-warfarin. Extensively used as both an anticoagulant drug and as a pesticide against rats and mice.. 4-hydroxy-3-(3-oxo-1-phenylbutyl)-1-benzopyran-2-one : A member of the class of coumarins that is 4-hydroxycoumarin which is substituted at position 3 by a 1-phenyl-3-oxo-1-butyl group.	4.02	4	0	benzenes; hydroxycoumarin; methyl ketone
demeclocycline Demeclocycline: A TETRACYCLINE analog having a 7-chloro and a 6-methyl. Because it is excreted more slowly than tetracycline, it maintains effective blood levels for longer periods of time.. demeclocycline : Tetracycline which lacks the methyl substituent at position 7 and in which the hydrogen para- to the phenolic hydroxy group is substituted by chlorine. Like tetracycline, it is an antibiotic, but being excreted more slowly, effective blood levels are maintained for longer. It is used (mainly as the hydrochloride) for the treatment of Lyme disease, acne and bronchitis, as well as for hyponatraemia (low blood sodium concentration) due to the syndrome of inappropriate antidiuretic hormone (SIADH) where fluid restriction alone has been ineffective.	3.58	2	0
tipranavir tipranavir: inhibits HIV-1 protease. tipranavir : A pyridine-2-sulfonamide substituted at C-5 by a trifluoromethyl group and at the sulfonamide nitrogen by a dihydropyrone-containing m-tolyl substituent. It is an HIV-1 protease inhibitor.	3.23	1	0	sulfonamide	antiviral drug; HIV protease inhibitor
rolitetracycline Rolitetracycline: A pyrrolidinylmethyl TETRACYCLINE.. rolitetracycline : A derivative of tetracycline in which the amide function is substituted with a pyrrolidinomethyl group.	2.04	1	0
tigecycline [no description available]	3.58	2	0
saxitoxin Saxitoxin: A compound that contains a reduced purine ring system but is not biosynthetically related to the purine alkaloids. It is a poison found in certain edible mollusks at certain times; elaborated by GONYAULAX and consumed by mollusks, fishes, etc. without ill effects. It is neurotoxic and causes RESPIRATORY PARALYSIS and other effects in MAMMALS, known as paralytic SHELLFISH poisoning.. saxitoxin : An alkaloid isolated from the marine dinoflagellates and cyanobacteria that causes paralytic shellfish poisoning.	1.97	1	0	alkaloid; carbamate ester; guanidines; ketone hydrate; paralytic shellfish toxin; pyrrolopurine	cyanotoxin; marine metabolite; neurotoxin; sodium channel blocker; toxin
fertinex [no description available]	3.23	1	0
entecavir entecavir (anhydrous) : Guanine substituted at the 9 position by a 4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl group. A synthetic analogue of 2'-deoxyguanosine, it is a nucleoside reverse transcriptase inhibitor with selective antiviral activity against hepatitis B virus. Entecavir is phosphorylated intracellularly to the active triphosphate form, which competes with deoxyguanosine triphosphate, the natural substrate of hepatitis B virus reverse transcriptase, inhibiting every stage of the enzyme's activity, although it has no activity against HIV. It is used for the treatment of chronic hepatitis B.	3.23	1	0	2-aminopurines; oxopurine; primary alcohol; secondary alcohol	antiviral drug; EC 2.7.7.49 (RNA-directed DNA polymerase) inhibitor
acyclovir Acyclovir: A GUANOSINE analog that acts as an antimetabolite. Viruses are especially susceptible. Used especially against herpes.. acyclovir : An oxopurine that is guanine substituted by a (2-hydroxyethoxy)methyl substituent at position 9. Used in the treatment of viral infections.	3.84	3	0	2-aminopurines; oxopurine	antimetabolite; antiviral drug
folic acid folcysteine: used to promote fertility in chickens. vitamin B9 : Any B-vitamin that exhibits biological activity against vitamin B9 deficiency. Vitamin B9 refers to the many forms of folic acid and its derivatives, including tetrahydrofolic acid (the active form), methyltetrahydrofolate (the primary form found in blood), methenyltetrahydrofolate, folinic acid amongst others. They are present in abundance in green leafy vegetables, citrus fruits, and animal products. Lack of vitamin B9 leads to anemia, a condition in which the body cannot produce sufficient number of red blood cells. Symptoms of vitamin B9 deficiency include fatigue, muscle weakness, and pale skin.	3.23	1	0	folic acids; N-acyl-amino acid	human metabolite; mouse metabolite; nutrient
rifampin Rifampin: A semisynthetic antibiotic produced from Streptomyces mediterranei. It has a broad antibacterial spectrum, including activity against several forms of Mycobacterium. In susceptible organisms it inhibits DNA-dependent RNA polymerase activity by forming a stable complex with the enzyme. It thus suppresses the initiation of RNA synthesis. Rifampin is bactericidal, and acts on both intracellular and extracellular organisms. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p1160)	3.84	3	0	cyclic ketal; hydrazone; N-iminopiperazine; N-methylpiperazine; rifamycins; semisynthetic derivative; zwitterion	angiogenesis inhibitor; antiamoebic agent; antineoplastic agent; antitubercular agent; DNA synthesis inhibitor; EC 2.7.7.6 (RNA polymerase) inhibitor; Escherichia coli metabolite; geroprotector; leprostatic drug; neuroprotective agent; pregnane X receptor agonist; protein synthesis inhibitor
clozapine Clozapine: A tricylic dibenzodiazepine, classified as an atypical antipsychotic agent. It binds several types of central nervous system receptors, and displays a unique pharmacological profile. Clozapine is a serotonin antagonist, with strong binding to 5-HT 2A/2C receptor subtype. It also displays strong affinity to several dopaminergic receptors, but shows only weak antagonism at the dopamine D2 receptor, a receptor commonly thought to modulate neuroleptic activity. Agranulocytosis is a major adverse effect associated with administration of this agent.. clozapine : A benzodiazepine that is 5H-dibenzo[b,e][1,4]diazepine substituted by a chloro group at position 8 and a 4-methylpiperazin-1-yl group at position 11. It is a second generation antipsychotic used in the treatment of psychiatric disorders like schizophrenia.	3.84	3	0	benzodiazepine; N-arylpiperazine; N-methylpiperazine; organochlorine compound	adrenergic antagonist; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; environmental contaminant; GABA antagonist; histamine antagonist; muscarinic antagonist; second generation antipsychotic; serotonergic antagonist; xenobiotic
dacarbazine (E)-dacarbazine : A dacarbazine in which the N=N double bond adopts a trans-configuration.	3.58	2	0	dacarbazine
didanosine Didanosine: A dideoxynucleoside compound in which the 3'-hydroxy group on the sugar moiety has been replaced by a hydrogen. This modification prevents the formation of phosphodiester linkages which are needed for the completion of nucleic acid chains. Didanosine is a potent inhibitor of HIV replication, acting as a chain-terminator of viral DNA by binding to reverse transcriptase; ddI is then metabolized to dideoxyadenosine triphosphate, its putative active metabolite.. didanosine : A purine 2',3'-dideoxyribonucleoside that is inosine in which the hydroxy groups at both the 2' and the 3' positions on the sugar moiety have been replaced by hydrogen. An antiviral drug, it is used as a medication to treat HIV/AIDS.	3.84	3	0	purine 2',3'-dideoxyribonucleoside	antimetabolite; antiviral drug; EC 2.4.2.1 (purine-nucleoside phosphorylase) inhibitor; geroprotector; HIV-1 reverse transcriptase inhibitor
ganciclovir [no description available]	3.84	3	0	2-aminopurines; oxopurine	antiinfective agent; antiviral drug
valacyclovir Valacyclovir: A prodrug of acyclovir that is used in the treatment of HERPES ZOSTER and HERPES SIMPLEX VIRUS INFECTION of the skin and mucous membranes, including GENITAL HERPES.	3.56	2	0	L-valyl ester	antiviral drug
sildenafil sildenafil : A pyrazolo[4,3-d]pyrimidin-7-one having a methyl substituent at the 1-position, a propyl substituent at the 3-position and a 2-ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl group at the 5-position.	3.58	2	0	piperazines; pyrazolopyrimidine; sulfonamide	EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor; vasodilator agent
olanzapine Olanzapine: A benzodiazepine derivative that binds SEROTONIN RECEPTORS; MUSCARINIC RECEPTORS; HISTAMINE H1 RECEPTORS; ADRENERGIC ALPHA-1 RECEPTORS; and DOPAMINE RECEPTORS. It is an antipsychotic agent used in the treatment of SCHIZOPHRENIA; BIPOLAR DISORDER; and MAJOR DEPRESSIVE DISORDER; it may also reduce nausea and vomiting in patients undergoing chemotherapy.. olanzapine : A benzodiazepine that is 10H-thieno[2,3-b][1,5]benzodiazepine substituted by a methyl group at position 2 and a 4-methylpiperazin-1-yl group at position 4.	3.56	2	0	benzodiazepine; N-arylpiperazine; N-methylpiperazine	antiemetic; dopaminergic antagonist; histamine antagonist; muscarinic antagonist; second generation antipsychotic; serotonergic antagonist; serotonin uptake inhibitor
penciclovir penciclovir : A member of the class of 2-aminopurines that is guanine in which the hydrogen at position 9 is substituted by a 4-hydroxy-3-(hydroxymethyl)but-1-yl group. An antiviral drug, it is administered topically for treatment of herpes labialis. A prodrug, famciclovir, is used for oral administration.	2.43	2	0	2-aminopurines; propane-1,3-diols	antiviral drug
vardenafil vardenafil : The sulfonamide resulting from formal condensation of the sulfo group of 4-ethoxy-3-(5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(1H)-one-2-yl)benzenesulfonic acid and the secondary amino group of 4-ethylpiperazine.	3.58	2	0	imidazotriazine; N-alkylpiperazine; N-sulfonylpiperazine	EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; vasodilator agent
allopurinol Allopurinol: A XANTHINE OXIDASE inhibitor that decreases URIC ACID production. It also acts as an antimetabolite on some simpler organisms.. allopurinol : A bicyclic structure comprising a pyrazole ring fused to a hydroxy-substituted pyrimidine ring.	3.84	3	0	nucleobase analogue; organic heterobicyclic compound	antimetabolite; EC 1.17.3.2 (xanthine oxidase) inhibitor; gout suppressant; radical scavenger
citrovorum factor [no description available]	3.23	1	0	tetrahydrofolic acid
leucovorin 5-formyltetrahydrofolic acid : A formyltetrahydrofolic acid in which the formyl group is located at position 5.	3.58	2	0	formyltetrahydrofolic acid	Escherichia coli metabolite; mouse metabolite
rifapentine rifapentine: cyclopentyl derivative of rifampicin	3.23	1	0	N-alkylpiperazine; N-iminopiperazine; rifamycins	antitubercular agent; leprostatic drug
bl 4162a anagrelide: imidazoquinazoline derivative which lowers platelet count probably by inhibiting thrombopoiesis and reduces platelet aggregation; used for thrombocythemia; structure in first source. anagrelide : A 1,5-dihydroimidazo[2,1-]quinazoline having an oxo substituent at the 2-position and chloro substituents at the 6- and 7-positions.	3.23	1	0	imidazoquinazoline	anticoagulant; antifibrinolytic drug; cardiovascular drug; platelet aggregation inhibitor
tegaserod tegaserod: a nonbenzamide 5-hydroxytryptamine(4) agonist; used in treatment of irritable bowel syndrome; marketing suspended 2007 in US due to higher incidence of MI, stroke, and unstable angina; structure given in first source	3.58	2	0	carboxamidine; guanidines; hydrazines; indoles	gastrointestinal drug; serotonergic agonist
pemetrexed pemetrexed disodium : An organic sodium salt that is the disodium salt of N-{4-[2-(2-amino-4-oxo-4,7-dihydro-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl}-L-glutamic acid. Inhibits thymidylate synthase (TS), 421 dihydrofolate reductase (DHFR), and glycinamide ribonucleotide formyltransferase (GARFT).	3.23	1	0	N-acyl-L-glutamic acid; pyrrolopyrimidine	antimetabolite; antineoplastic agent; EC 1.5.1.3 (dihydrofolate reductase) inhibitor; EC 2.1.1.45 (thymidylate synthase) inhibitor; EC 2.1.2.2 (phosphoribosylglycinamide formyltransferase) inhibitor
tirapazamine Tirapazamine: A triazine derivative that introduces breaks into DNA strands in hypoxic cells, sensitizing tumor cells to the cytotoxic activity of other drugs and radiation.. tirapazamine : A member of the class of benzotriazines that is 1,2,4-benzotriazine carrying an amino substituent at position 3 and two oxido substituents at positions 1 and 4.	2.04	1	0	aromatic amine; benzotriazines; N-oxide	antibacterial agent; antineoplastic agent; apoptosis inducer
valganciclovir Valganciclovir: A ganciclovir prodrug and antiviral agent that is used to treat CYTOMEGALOVIRUS RETINITIS in patients with AIDS, and for the prevention of CYTOMEGALOVIRUS INFECTIONS in organ transplant recipients who have received an organ from a CMV-positive donor.. valganciclovir : The L-valinyl ester of ganciclovir, into which it is rapidly converted by intestinal and hepatic esterases. It is a synthetic analogue of 2'-deoxyguanosine.	3.23	1	0	L-valyl ester; purines	antiviral drug; prodrug
aprepitant Aprepitant: A morpholine neurokinin-1 (NK1) receptor antagonist that is used in the management of nausea and vomiting caused by DRUG THERAPY, and for the prevention of POSTOPERATIVE NAUSEA AND VOMITING.. aprepitant : A morpholine-based antiemetic, which is or the prevention of acute and delayed nausea and vomiting associated with initial and repeat courses of highly emetogenic cancer chemotherapy. Aprepitant is a selective high-affinity antagonist of human substance P/neurokinin 1 (NK1) receptors.	3.58	2	0	(trifluoromethyl)benzenes; cyclic acetal; morpholines; triazoles	antidepressant; antiemetic; neurokinin-1 receptor antagonist; peripheral nervous system drug; substance P receptor antagonist
fosaprepitant fosaprepitant: a pro-drug form of aprepitant. fosaprepitant : A morpholine derivative that is the (1R)-1-[3,5-bis(trifluoromethyl)phenyl]ethyl ether of (3-{[(2R,3S)-3-(4-fluorophenyl)-2-hydroxymorpholin-4-yl]methyl}-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)phosphonic acid.	3.23	1	0	(trifluoromethyl)benzenes; cyclic acetal; morpholines; phosphoramide; triazoles	antiemetic; neurokinin-1 receptor antagonist; prodrug
ceftobiprole ceftobiprole: BAL5788 is Ceftobiprole medocaril sodium. ceftobiprole : A fifth-generation cephalosporin antibiotic having (E)-[(3'R)-2-oxo[1,3'-bipyrrolidin]-3-ylidene]methyl and [(2Z)-2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(hydroxyimino)acetyl]amino side groups located at positions 3 and 7 respectively; developed for the treatment of hospital-acquired pneumonia (HAP, excluding ventilator-associated pneumonia, VAP) and community-acquired pneumonia (CAP).	2.04	1	0	cephalosporin; thiadiazoles	antimicrobial agent
rifabutin [no description available]	3.84	3	0
levomefolate calcium levomefolate calcium: an ingredient in Contraceptives, Oral, Combined. levomefolate calcium : An organic calcium salt of (6S)-5-methyltetrahydrofolic acid.	3.23	1	0	organic calcium salt	antidepressant
eye [no description available]	2.36	2	0

methohexital

Description

Cross-References

Synonyms (73)

Research Excerpts

Overview

Effects

Actions

Treatment

Toxicity

Pharmacokinetics

Compound-Compound Interactions

Bioavailability

Dosage Studied

Roles (2)

Drug Classes (2)

Bioassays (54)

Research

Studies (1,420)

Market Indicators

Research Demand Index: 53.66

Study Types

Clinical Trials (10)

Trial Overview

Trial Outcomes

Mean Post Anesthesia Recovery Side Effects

Mean Depression Rating Using the Patient Health Questionnaire-9 (PHQ-9)

Mean Depression Rating Using the Hospital Anxiety and Depression Scale (HADS)

Recovery Time

Re-orientation Time

Hamilton Rating Scale for Depression (HRSD) Improvement

Columbia Autobiographical Memory Interview-Short Form (AMI-SF)

Columbia Autobiographical Memory Interview-Short Form (AMI-SF)

Columbia Autobiographical Memory Interview-Short Form (AMI-SF)

Hamilton Depression Rating Scale (HDRS)

Diastolic Blood Pressure

Duration of Each Hypotension Episode

Heart Rate

Number of Participants Who Had Hypotensive Events

Number of Participants With Refractory Hypotension

Systolic Blood Pressure

Blood Levels of Angiotensin II (AII) (at Baseline (Time 0) and 3,5,10 and 15 Min After Anesthetic Induction)

Blood Levels of Arginine Vasopressin (AVP) (at Baseline (Time 0) and 3,5,10 and 15 Min After Anesthetic Induction) for Participants Who Did Not Receive AVP for Refractory Hypotension

Blood Levels of AVP (at Baseline (Time 0) and 3,5,10 and 15 Min) for Participants Who Received AVP for Refractory Hypotension

Blood Levels of Epinephrine (at Baseline (Time 0) and 3,5,10 and 15 Min After Induction of Anesthesia)

Serum Concentration of Norepinephrine (NE) (at Baseline (Time 0) and 3,5,10 and 15 Min After Anesthetic Induction)

Time to First Electrical Direct-current Shock

Diastolic Blood Pressure

Heart Rate

Mean Arterial Blood Pressure

Respiratory Rate

Saturation of Peripheral Oxygen (SpO2)

Systolic Blood Pressure

Time From Initiation of Sedation to Full Recovery

Time From End of Injection to Loss of Conscious

Recall of Pain at Injection Site - Visual Analog Scale

Recall of Anything Unpleasant About the Procedure - Visual Analog Scale

Time to Eyes Opening

Related Drugs (1,435)

Related Conditions (497)