3,4-dihydroxyphenylglycol profile

3,4-dihydroxyphenylglycol, also known as DOPET, is a catecholamine metabolite formed during the breakdown of dopamine. It is of interest to researchers studying Parkinson's disease, as it is a potential biomarker for the disease and can be measured in urine and cerebrospinal fluid. It is also a precursor to the neurotransmitter norepinephrine, and its synthesis involves the enzyme dopamine beta-hydroxylase. Studies have shown that levels of DOPET may be altered in individuals with Parkinson's disease, and its measurement may be useful in monitoring disease progression and treatment effectiveness. DOPET has also been studied for its potential role in other neurological disorders, such as Alzheimer's disease and depression.'

3,4-dihydroxyphenylglycol: noradrenaline metabolite in mouse brain; RN given refers to cpd without isomeric designation [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

3,4-dihydroxyphenylethyleneglycol : A tetrol composed of ethyleneglycol having a 3,4-dihydroxyphenyl group at the 1-position. [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	91528
CHEBI ID	1387
SCHEMBL ID	141609
MeSH ID	M0055398

Synonym
1-(3,4-dihydroxyphenyl)ethane-1,2-diol
3,4-dihydroxyphenylglycol
4-(1,2-dihydroxyethyl)benzene-1,2-diol
dihydroxyphenylethylene glycol
dopeg
nsc92532
nsc-92532
3,4-dihydroxyphenylethyleneglycol
3343-19-9
C05576
phenylglycol, 3,4-dihydroxy-
4740838A-79C1-450B-827D-A3B2F61834F4
28822-73-3
AKOS003368780
FT-0694582
3,4-dihydroxyphenethyl glycol
(3,4-dihydroxyphenyl)ethylene glycol
1-(3,4-dihydroxyphenyl)-1,2-ethanediol
CHEBI:1387
3,4-dihydroxyphenylethyl glycol
2-hydroxy-2-(3,4-dihydroxy)phenylethanol
beta,3,4-trihydroxy phenethyl alcohol
A819617
ba 2775
unii-ueh9k539kj
dl-3,4-dihydroxyphenylglycol
(+-)-3,4-dihydroxyphenylglycol
ueh9k539kj ,
(1)-4-(1,2-dihydroxyethyl)pyrocatechol
einecs 249-260-9
nsc 92532
4-(1,2-dihydroxyethyl)-1,2-benzenediol
rac 3,4-dihydroxyphenylethylene glycol
FT-0638811
1,2-benzenediol, 4-(1,2-dihydroxyethyl)-
SCHEMBL141609
AKOS016843225
1,2-ethanediol, 1-(3,4-dihydroxyphenyl)-, (.+/-.)-
1,2-benzenediol, 4-(1,2-dihydroxyethyl)-, (.+/-.)-
MTVWFVDWRVYDOR-UHFFFAOYSA-N
(3,4-dihydroxyphenyl)glycol
1,2-benzenediol, 4-(1,2-dihydroxyethyl)-, (-)-
HY-W010066
CS-W010782
(+/-)-3,4-dihydroxyphenylglycol
3,4-dihydroxyphenylglycol, (+/-)-
dhpg (3,4-dihydroxyphenylglycol)
3,4-dihydroxyphenylglycol, dl-
ba-2775
DTXSID20865451
EN300-1855459
Q262270
F85606
MS-22923

Excerpt	Reference	Relevance
" Pretreatment with desipramine did not alter any of the pharmacokinetic parameters of ISO."	( Haemodynamics as a determinant of the pharmacokinetics of and the plasma catecholamine responses to isoprenaline. Graefe, KH; Halbrügge, T; Ludwig, J; Vey, G; Walter, J, 1989)	0.28
"The pharmacodynamic equipotency of 2 dose regimens (5 mg twice daily versus 10 mg once daily) of befloxatone, a new reversible and selective monoamine oxidase A (MAO-A) inhibitor, after single and multiple doses for 6 days was examined in a randomized, double-blind, three-way crossover, placebo-controlled trial of 12 healthy volunteers."	( Pharmacodynamics and pharmacokinetics of two dose regimens of befloxatone, a new reversible and selective monoamine oxidase inhibitor, at steady state in healthy volunteers. Allain, H; Cimarosti, I; Curet, O; Dubruc, C; Durrieu, G; Gandon, JM; Jezequel, S; le Coz, F; Patat, A; Rosenzweig, P; Zieleniuk, I, 1996)	0.29
" Adverse events and vital signs were recorded and pharmacokinetic parameters of fluoxetine and moclobemide were determined."	( Pharmacokinetic and pharmacodynamic interactions between fluoxetine and moclobemide in the investigation of development of the "serotonin syndrome". Amrein, R; Dingemanse, J; Gieschke, R; Guentert, T; Wallnöfer, A, 1998)	0.3
" 3,4-Dihydroxyphenylglycol, 5-hydroxyindoleacetic acid, and 3,4-dihydroxyphenylacetic acid plasma levels and serotonin uptake did not reveal a pharmacodynamic interaction."	( Pharmacokinetic and pharmacodynamic interactions between fluoxetine and moclobemide in the investigation of development of the "serotonin syndrome". Amrein, R; Dingemanse, J; Gieschke, R; Guentert, T; Wallnöfer, A, 1998)	1.21
" Estimated pharmacokinetic parameters were CL (41."	( Mechanistic pharmacokinetic and pharmacodynamic modeling of CHF3381 (2-[(2,3-dihydro-1H-inden-2-yl)amino]acetamide monohydrochloride), a novel N-methyl-D-aspartate antagonist and monoamine oxidase-A inhibitor in healthy subjects. Csajka, C; Dostert, P; Imbimbo, BP; Piccinno, A; Verotta, D, 2005)	0.33
" The pharmacokinetic and pharmacodynamic profile of these drugs in plasma and cerebrospinal fluid (CSF) was assessed."	( A pharmacokinetic/pharmacodynamic investigation: assessment of edivoxetine and atomoxetine on systemic and central 3,4-dihydroxyphenylglycol, a biochemical marker for norepinephrine transporter inhibition. Kielbasa, W; Pan, A; Pereira, A, 2015)	0.63
" Pharmacokinetic and pharmacodynamic data were obtained from healthy subjects (n = 160) from 5 clinical trials."	( Pharmacodynamics of norepinephrine reuptake inhibition: Modeling the peripheral and central effects of atomoxetine, duloxetine, and edivoxetine on the biomarker 3,4-dihydroxyphenylglycol in humans. Kielbasa, W; Lobo, E, 2015)	0.61
" In an ADHD population treated with dasotraline 4 or 8 mg/day, dasotraline was characterized by a mean apparent half-life of 47 h and plasma concentrations reached steady-state by 10 days of dosing."	( Pharmacokinetics and Exposure-Response Relationships of Dasotraline in the Treatment of Attention-Deficit/Hyperactivity Disorder in Adults. Hing, J; Hopkins, SC; Koblan, KS; Loebel, A; Passarell, JA; Skende, E; Sunkaraneni, S, 2016)	0.43

Excerpt	Reference	Relevance
" The pharmacokinetic bioavailability at steady state of both dose regimens was also similar."	( Pharmacodynamics and pharmacokinetics of two dose regimens of befloxatone, a new reversible and selective monoamine oxidase inhibitor, at steady state in healthy volunteers. Allain, H; Cimarosti, I; Curet, O; Dubruc, C; Durrieu, G; Gandon, JM; Jezequel, S; le Coz, F; Patat, A; Rosenzweig, P; Zieleniuk, I, 1996)	0.29

Excerpt	Relevance	Reference
" In trachea and right atria of the guinea-pig, tertatolol inhibited, in a concentration-dependent manner, the dose-response curves to isoproterenol; the relative potency of tertatolol was higher than that of propranolol."	( Effects of tertatolol on post- and prejunctional beta adrenoceptors. Herman, AG; Jordaens, FH; Laekeman, G; Majchrowicz, BB; Verbeuren, TJ; Zonnekeyn, LL, 1985)	0.27
" The dose-response relations for exogenous noradrenaline measured in the absence or presence of 50 microM amiloride indicated that the drug acted as a reversible competitive alpha-adrenergic antagonist."	( Amiloride acts as an alpha-adrenergic antagonist in the isolated rat tail artery. Palatý, V, 1986)	0.27
" Dose-response regression lines showed that exercise in the heat increased the slope and shifted the Tco-NE dose relation to the left."	( Heat acclimation: role of norepinephrine in the anterior hypothalamus. Christman, JV; Gisolfi, CV, 1985)	0.27
" The dose-response curve for verapamil was bell-shaped and the activity resided in the l form."	( An inhibitory effect of verapamil and diltiazem on the release of noradrenaline from ischaemic and reperfused hearts. Nayler, WG; Sturrock, WJ, 1984)	0.27
" Oral dosing with amiodarone has no such effect."	( Sympatholytic action of intravenous amiodarone in the rat heart. Dart, AM; Du, XJ; Esler, MD, 1995)	0.29
" Blood pressure, heart rate, ECG, and plasma concentrations of unconjugated adrenaline and noradrenaline were not influenced after single and repeated dosing of entacapone."	( COMT inhibition by high-dose entacapone does not affect hemodynamics but changes catecholamine metabolism in healthy volunteers at rest and during exercise. Gordin, A; Heinävaara, S; Illi, A; Koulu, M; Scheinin, M; Sundberg, S, 1994)	0.29
" Both dose regimens provided equipotent extent and duration of MAO-A inhibition at steady state, suggesting a once daily dosage should be sufficient for most patients."	( Pharmacodynamics and pharmacokinetics of two dose regimens of befloxatone, a new reversible and selective monoamine oxidase inhibitor, at steady state in healthy volunteers. Allain, H; Cimarosti, I; Curet, O; Dubruc, C; Durrieu, G; Gandon, JM; Jezequel, S; le Coz, F; Patat, A; Rosenzweig, P; Zieleniuk, I, 1996)	0.29
" However, multiple dosing of moclobemide did not lead the excessive accumulation."	( Pharmacokinetic and pharmacodynamic interactions between fluoxetine and moclobemide in the investigation of development of the "serotonin syndrome". Amrein, R; Dingemanse, J; Gieschke, R; Guentert, T; Wallnöfer, A, 1998)	0.3
" These mGluRs are functionally active on catecholamine (CA) secretion in chromaffin cells because both (1S, 3R)-1-aminocyclopentane-1,3-dicarboxylic acid (t-ACPD) and the specific agonist of Group I mGluRs, (S)-3,5-dihydroxyphenylglycine (DHPG), were able to stimulate the release of CAs (adrenaline and noradrenaline) in a dose-response manner."	( Expression and functional properties of group I metabotropic glutamate receptors in bovine chromaffin cells. Aránguez, I; Arce, C; Del Campo, AB; Figueroa, S; González, MP; López, E; Oset-Gasque, MJ, 2004)	0.32
" The dose of intravenous tyramine required to raise systolic blood pressure by 30 mm Hg (PD30) increased dose-dependently with duloxetine and was significant at the end of the 120-mg/d dosage (P<0."	( Clinical assessment of norepinephrine transporter blockade through biochemical and pharmacological profiles. Bieck, PR; Black, BK; Bymaster, FP; Garland, EM; Gonzales, C; Loghin, C; Potter, WZ; Robertson, D; Vincent, S, 2004)	0.32
" Here, the in vivo effects of dosing with duloxetine 60 mg once daily for 11 days in healthy subjects were assessed in 2 studies: (1) centrally (n = 11), by measuring concentrations of 5-hydroxyindoleacetic acid, 3,4-dihydroxyphenylglycol (DHPG), and NE in cerebrospinal fluid, and (2) versus escitalopram 20 mg/d (n = 32) in a 2-period crossover study by assessing the ΔDHPG/ΔNE ratio in plasma during orthostatic testing and by pharmacokinetic/pharmacodynamic modeling of reuptake inhibition using subjects' serum in cell lines expressing cloned human 5-HTT or NET."	( Effects of duloxetine on norepinephrine and serotonin transporter activity in healthy subjects. Chappell, JC; Dean, RA; Detke, MJ; Eisenhofer, G; Haber, H; Iyengar, S; Knadler, MP; Lachno, DR; Lobo, ED; Mitchell, MI; Nemeroff, CB; Owens, MJ; Pangallo, B, 2014)	0.59
"These results related dasotraline pharmacokinetics to pharmacological activity in ADHD, and support the novel concept that maintaining constant, steady-state dopamine and norepinephrine reuptake inhibition throughout a 24-h dosing interval is a novel pharmacological approach to the management of ADHD symptoms."	( Pharmacokinetics and Exposure-Response Relationships of Dasotraline in the Treatment of Attention-Deficit/Hyperactivity Disorder in Adults. Hing, J; Hopkins, SC; Koblan, KS; Loebel, A; Passarell, JA; Skende, E; Sunkaraneni, S, 2016)	0.43

Role	Description
metabolite	Any intermediate or product resulting from metabolism. The term 'metabolite' subsumes the classes commonly known as primary and secondary metabolites.
mouse metabolite	Any mammalian metabolite produced during a metabolic reaction in a mouse (Mus musculus).
[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
catechols	Any compound containing an o-diphenol component.
tetrol	A polyol that contains 4 hydroxy groups.
[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]

Pathway	Proteins	Compounds
Tyrosine Metabolism	16	57
Alkaptonuria	16	57
Hawkinsinuria	16	57
Tyrosinemia Type I	16	57
Disulfiram Action Pathway	23	66
Tyrosinemia, Transient, of the Newborn	16	57
Dopamine beta-Hydroxylase Deficiency	16	57
Monoamine Oxidase-A Deficiency (MAO-A)	16	57
Tyrosine metabolism ( Tyrosine metabolism )	28	41
NAD+ + 3,4-Dihydroxy-phenyl-ethyleneglycol = NADH + 3,4-Dihydroxy-mandelaldehyde ( Tyrosine metabolism )	8	4

Timeframe	Studies, This Drug (%)	All Drugs %
pre-1990	207 (22.77)	18.7374
1990's	204 (22.44)	18.2507
2000's	281 (30.91)	29.6817
2010's	196 (21.56)	24.3611
2020's	21 (2.31)	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	55 (5.90%)	5.53%
Reviews	14 (1.50%)	6.00%
Case Studies	6 (0.64%)	4.05%
Observational	1 (0.11%)	0.25%
Other	856 (91.85%)	84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Substance	Relationship Strength	Studies	Trials	Classes	Roles
protocatechuic acid protocatechuic acid: RN given refers to parent cpd; structure. 3,4-dihydroxybenzoic acid : A dihydroxybenzoic acid in which the hydroxy groups are located at positions 3 and 4.	2.13	1	0	catechols; dihydroxybenzoic acid	antineoplastic agent; EC 1.1.1.25 (shikimate dehydrogenase) inhibitor; EC 1.14.11.2 (procollagen-proline dioxygenase) inhibitor; human xenobiotic metabolite; plant metabolite
phosphoserine Phosphoserine: The phosphoric acid ester of serine.	2.95	4	0	non-proteinogenic alpha-amino acid; O-phosphoamino acid; serine derivative	human metabolite
cysteine sulfinic acid cysteine sulfinic acid: metabolite of sulfur-containing amino acids	2.02	1	0
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.	5.57	22	0	amino acid zwitterion; gamma-amino acid; monocarboxylic acid	human metabolite; neurotransmitter; Saccharomyces cerevisiae metabolite; signalling molecule
5-hydroxytryptophan 5-Hydroxytryptophan: The immediate precursor in the biosynthesis of SEROTONIN from tryptophan. It is used as an antiepileptic and antidepressant.. 5-hydroxytryptophan : A tryptophan derivative that is tryptophan substituted by a hydroxy group at position 5.	3.47	2	0	hydroxytryptophan	human metabolite; neurotransmitter
acetic acid Acetic Acid: Product of the oxidation of ethanol and of the destructive distillation of wood. It is used locally, occasionally internally, as a counterirritant and also as a reagent. (Stedman, 26th ed). acetic acid : A simple monocarboxylic acid containing two carbons.	2.13	1	0	monocarboxylic acid	antimicrobial food preservative; Daphnia magna metabolite; food acidity regulator; protic solvent
ammonium hydroxide azane : Saturated acyclic nitrogen hydrides having the general formula NnHn+2.	2.45	2	0	azane; gas molecular entity; mononuclear parent hydride	EC 3.5.1.4 (amidase) inhibitor; metabolite; mouse metabolite; neurotoxin; NMR chemical shift reference compound; nucleophilic reagent; refrigerant
benzaldehyde [no description available]	1.96	1	0	benzaldehydes	EC 3.1.1.3 (triacylglycerol lipase) inhibitor; EC 3.5.5.1 (nitrilase) inhibitor; flavouring agent; fragrance; odorant receptor agonist; plant metabolite
chlorine chloride : A halide anion formed when chlorine picks up an electron to form an an anion.	3.08	5	0	halide anion; monoatomic chlorine	cofactor; Escherichia coli metabolite; human metabolite
3,4-dihydroxyphenylacetic acid 3,4-Dihydroxyphenylacetic Acid: A deaminated metabolite of LEVODOPA.. (3,4-dihydroxyphenyl)acetic acid : A dihydroxyphenylacetic acid having the two hydroxy substituents located at the 3- and 4-positions. It is a metabolite of dopamine.. dihydroxyphenylacetic acid : A dihydroxy monocarboxylic acid consisting of phenylacetic acid having two phenolic hydroxy substituents.	17.83	104	9	catechols; dihydroxyphenylacetic acid	human 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.	1.98	1	0	2-hydroxy monocarboxylic acid	algal metabolite; Daphnia magna metabolite
formaldehyde paraform: polymerized formaldehyde; RN given refers to parent cpd; used in root canal therapy	2.05	1	0	aldehyde; one-carbon compound	allergen; carcinogenic agent; disinfectant; EC 3.5.1.4 (amidase) inhibitor; environmental contaminant; Escherichia coli metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
glycine [no description available]	5.57	68	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.	2.05	1	0	alditol; triol	algal metabolite; detergent; Escherichia coli metabolite; geroprotector; human metabolite; mouse metabolite; osmolyte; Saccharomyces cerevisiae metabolite; solvent
histamine [no description available]	1.97	1	0	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.	13.03	63	6	hydroxyphenylalanine; non-proteinogenic alpha-amino acid; tyrosine derivative	human metabolite
inositol Inositol: An isomer of glucose that has traditionally been considered to be a B vitamin although it has an uncertain status as a vitamin and a deficiency syndrome has not been identified in man. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1379) Inositol phospholipids are important in signal transduction.. inositol : Any cyclohexane-1,2,3,4,5,6-hexol.. 1D-chiro-inositol : Belonging to the inositol family of compounds, D-chiro-inositol (DCI) is an isomer of glucose. It is an important secondary messenger in insulin signal transduction.. muco-inositol : An inositol that is cyclohexane-1,2,3,4,5,6-hexol having a (1R,2R,3r,4R,5S,6r)-configuration.	1.98	1	0	cyclitol; hexol
melatonin [no description available]	1.96	1	0	acetamides; tryptamines	anticonvulsant; central nervous system depressant; geroprotector; hormone; human metabolite; immunological adjuvant; mouse metabolite; radical scavenger
nickel Nickel: A trace element with the atomic symbol Ni, atomic number 28, and atomic weight 58.69. It is a cofactor of the enzyme UREASE.. nickel ion : A nickel atom having a net electric charge.. nickel atom : Chemical element (nickel group element atom) with atomic number 28.	2.03	1	0	metal allergen; nickel group element atom	epitope; micronutrient
nitrates Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical.	1.98	1	0	monovalent inorganic anion; nitrogen oxoanion; reactive nitrogen species
nitrites Nitrites: Salts of nitrous acid or compounds containing the group NO2-. The inorganic nitrites of the type MNO2 (where M=metal) are all insoluble, except the alkali nitrites. The organic nitrites may be isomeric, but not identical with the corresponding nitro compounds. (Grant & Hackh's Chemical Dictionary, 5th ed)	2.11	1	0	monovalent inorganic anion; nitrogen oxoanion; reactive nitrogen species	human metabolite
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.	3.36	1	1	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
pyrogallol benzenetriol : A triol in which three hydroxy groups are substituted onto a benzene ring.	1.95	1	0	benzenetriol; phenolic donor	plant metabolite
pyruvic acid Pyruvic Acid: An intermediate compound in the metabolism of carbohydrates, proteins, and fats. In thiamine deficiency, its oxidation is retarded and it accumulates in the tissues, especially in nervous structures. (From Stedman, 26th ed). pyruvic acid : A 2-oxo monocarboxylic acid that is the 2-keto derivative of propionic acid. It is a metabolite obtained during glycolysis.	1.98	1	0	2-oxo monocarboxylic acid	cofactor; fundamental metabolite
taurine [no description available]	2	1	0	amino sulfonic acid; zwitterion	antioxidant; Escherichia coli metabolite; glycine receptor agonist; human metabolite; mouse metabolite; nutrient; radical scavenger; 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.	4.12	15	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.	4.22	17	0	non-proteinogenic alpha-amino acid
4-iodo-2,5-dimethoxyphenylisopropylamine 4-iodo-2,5-dimethoxyphenylisopropylamine: RN given refers to unlabeled parent cpd without isomeric designation; a serotonin agonist. 2-(4-iodo-2,5-dimethoxyphenyl)-1-methylethylamine : An organoiodine compound that is amphetamine bearing two methoxy substituents at positions 2 and 5 as well as an iodo substituent at position 4.	1.98	1	0	amphetamines; dimethoxybenzene; organoiodine compound
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.	2.37	2	0	non-proteinogenic alpha-amino acid	neurotoxin
gallopamil Gallopamil: Coronary vasodilator that is an analog of iproveratril (VERAPAMIL) with one more methoxy group on the benzene ring.	1.97	1	0	benzenes; organic amino compound
normetanephrine Normetanephrine: A methylated metabolite of norepinephrine that is excreted in the urine and found in certain tissues. It is a marker for tumors.	6.86	21	1	catecholamine
sk&f-38393 2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine: A selective D1 dopamine receptor agonist used primarily as a research tool.. 1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine-7,8-diol : A benzazepine that is 2,3,4,5-tetrahydro-3-benzazepine bearing a phenyl substituent at position 1 and two hydroxy substituents at positions 7 and 8.. SKF 38393 : A racemate comprising equimolar amounts of (R)- and (S)-SKF 38393	2.02	1	0	benzazepine; catechols; secondary amino compound
vanilmandelic acid Vanilmandelic Acid: A 3-O-methyl ether of 3,4-dihydroxymandelic acid. It is an end-stage metabolite of CATECHOLAMINES; EPINEPHRINE; and NOREPINEPHRINE.. vanillylmandelic acid : An aromatic ether that is the 3-O-methyl ether of 3,4-dihydroxymandelic acid.	5.23	12	1	2-hydroxy monocarboxylic acid; aromatic ether; phenols	human metabolite
(alpha-carboxycyclopropyl)glycine (alpha-carboxycyclopropyl)glycine: structure given in first source; glutamate receptor agonist	2.7	3	0	alpha-amino acid
4-carboxy-3-hydroxyphenylglycine 4-carboxy-3-hydroxyphenylglycine: weak agonist at metabotropic glutamate receptors; occludes the action of 1-aminocyclopentyl-1,3-dicarboxylate in hippocampus	2	1	0	hydroxybenzoic acid
1,3-dipropyl-8-cyclopentylxanthine DPCPX : An oxopurine that is 7H-xanthine substituted at positions 1 and 3 by propyl groups and at position 8 by a cyclohexyl group.	2.05	1	0	oxopurine	adenosine A1 receptor antagonist; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor
1-anilino-8-naphthalenesulfonate 1-anilino-8-naphthalenesulfonate: RN given refers to parent cpd. 8-anilinonaphthalene-1-sulfonic acid : A naphthalenesulfonic acid that is naphthalene-1-sulfonic acid substituted by a phenylamino group at position 8.	2.13	1	0	aminonaphthalene; naphthalenesulfonic acid	fluorescent probe
1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine: A dopaminergic neurotoxic compound which produces irreversible clinical, chemical, and pathological alterations that mimic those found in Parkinson disease.. 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine : A tetrahydropyridine that is 1,2,3,6-tetrahydropyridine substituted by a methyl group at position 1 and a phenyl group at position 4.	2.68	3	0	methylpyridines; phenylpyridine; tetrahydropyridine	neurotoxin
2-aminoethoxydiphenyl borate 2-aminoethoxydiphenyl borate: is a novel membrane-penetrable modulator and transient receptor potential channel blocker; structure in first source; do not confuse with 2-APB cpd. 2-aminoethoxydiphenylborane : An organoboron compound that is diphenylborane in which the borane hydrogen is replaced by a 2-aminoethoxy group.	2.96	4	0	organoboron compound; primary amino compound	calcium channel blocker; IP3 receptor antagonist; potassium channel opener
3,4-methylenedioxyamphetamine 3,4-Methylenedioxyamphetamine: An amphetamine derivative that inhibits uptake of catecholamine neurotransmitters. It is a hallucinogen. It is less toxic than its methylated derivative but in sufficient doses may still destroy serotonergic neurons and has been used for that purpose experimentally.	1.97	1	0	benzodioxoles
n-methyl-3,4-methylenedioxyamphetamine N-Methyl-3,4-methylenedioxyamphetamine: An N-substituted amphetamine analog. It is a widely abused drug classified as a hallucinogen and causes marked, long-lasting changes in brain serotonergic systems. It is commonly referred to as MDMA or ecstasy.. 3,4-methylenedioxymethamphetamine : A member of the class of benzodioxoles that is 1,3-benzodioxole substituted by a 2-(methylamino)propyl group at position 5.	1.97	1	0	amphetamines; benzodioxoles	neurotoxin
phaclofen phaclofen: peripheral & central baclofen & GABA antagonist; structure given in first source	2.05	1	0	organophosphate oxoanion; zwitterion
3-hydroxybenzylhydrazine 3-hydroxybenzylhydrazine: decarboxylase inhibitor; RN given refers to parent cpd; structure	2.39	2	0	phenols
3-methoxytyramine 3-methoxytyramine: RN given refers to parent cpd. 3-methoxytyramine : A monomethoxybenzene that is dopamine in which the hydroxy group at position 3 is replaced by a methoxy group. It is a metabolite of the neurotransmitter dopamine and considered a potential biomarker of pheochromocytomas and paragangliomas.	1.99	1	0	monomethoxybenzene; phenols; phenylethylamine; primary amino compound	biomarker; human blood serum metabolite; human urinary metabolite
4-aminopyridine [no description available]	3.11	5	0	aminopyridine; aromatic amine	avicide; orphan drug; potassium channel blocker
homovanillic acid Homovanillic Acid: A 3-O-methyl ETHER of (3,4-dihydroxyphenyl)acetic acid.. homovanillate : A hydroxy monocarboxylic acid anion which is obtained by deprotonation of the carboxy group of homovanillic acid.. homovanillic acid : A monocarboxylic acid that is the 3-O-methyl ether of (3,4-dihydroxyphenyl)acetic acid. It is a catecholamine metabolite.	9.41	27	5	guaiacols; monocarboxylic acid	human metabolite; mouse metabolite
hydroxyindoleacetic acid (5-hydroxyindol-3-yl)acetic acid : A member of the class of indole-3-acetic acids that is indole-3-acetic acid substituted by a hydroxy group at C-5.	10.86	28	9	indole-3-acetic acids	drug metabolite; human metabolite; mouse metabolite
8-phenyltheophylline 8-phenyltheophylline: purinergic P1 receptor antagonist	1.97	1	0
1-aminoindan-1,5-dicarboxylic acid 1-aminoindan-1,5-dicarboxylic acid: structure given in first source	3.39	7	0
alpha-methyltyrosine methyl ester alpha-methyltyrosine methyl ester: RN given refers to parent cpd	1.96	1	0
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.	3.36	1	1	organochlorine compound; triazolobenzodiazepine	anticonvulsant; anxiolytic drug; GABA agonist; muscle relaxant; sedative; xenobiotic
am 251 AM 251: an analog of SR141716A; structure given in first source. AM-251 : A carbohydrazide obtained by formal condensation of the carboxy group of 1-(2,4-dichlorophenyl)-5-(4-iodophenyl)-4-methyl-1H-pyrazole-3-carboxylic acid with the amino group of 1-aminopiperidine. An antagonist at the CB1 cannabinoid receptor.	3.93	12	0	amidopiperidine; carbohydrazide; dichlorobenzene; organoiodine compound; pyrazoles	antidepressant; antineoplastic agent; apoptosis inducer; CB1 receptor antagonist
theophylline [no description available]	2.67	3	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.	2.69	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.	3.75	2	1	carbotricyclic compound; tertiary amine	adrenergic uptake inhibitor; antidepressant; environmental contaminant; tropomyosin-related kinase B receptor agonist; xenobiotic
2-amino-4-phosphonobutyric acid 2-amino-4-phosphonobutyric acid: glutamate antagonist in locust muscle; structure; do not confuse with L-AP4, which is the propionic acid version	3.13	5	0
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.	2.1	1	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
baclofen [no description available]	3.74	10	0	amino acid zwitterion; gamma-amino acid; monocarboxylic acid; monochlorobenzenes; primary amino compound	central nervous system depressant; GABA agonist; muscle relaxant
bay-k-8644 3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl ester: A dihydropyridine derivative, which, in contrast to NIFEDIPINE, functions as a calcium channel agonist. The compound facilitates Ca2+ influx through partially activated voltage-dependent Ca2+ channels, thereby causing vasoconstrictor and positive inotropic effects. It is used primarily as a research tool.. Bay-K-8644 : A racemate comprising equimolar amounts of (R)- and (S)-Bay-K-8644. methyl 2,6-dimethyl-5-nitro-4-[2-(trifluoromethyl)phenyl]-1,4-dihydropyridine-3-carboxylate : A pentasubstituted dihydropyridine carrying methoxycarbonyl, 2-(trifluoromethyl)phenyl and nitro substituents at positions 3, 4 and 5 respectively as well as two methyl substituents at positions 2 and 6.	2.4	2	0	(trifluoromethyl)benzenes; C-nitro compound; dihydropyridine; methyl ester
benserazide Benserazide: An inhibitor of DOPA DECARBOXYLASE that does not enter the central nervous system. It is often given with LEVODOPA in the treatment of parkinsonism to prevent the conversion of levodopa to dopamine in the periphery, thereby increasing the amount that reaches the central nervous system and reducing the required dose. It has no antiparkinson actions when given alone.. benserazide : A carbohydrazide that results from the formal condensation of the carboxy group of DL-serine with the primary amino group of 4-(hydrazinylmethyl)benzene-1,2,3-triol. An aromatic-L-amino-acid decarboxylase inhibitor (DOPA decarboxylase inhibitor) that does not enter the central nervous system, it is used as its hydrochloride salt as an adjunct to levodopa in the treatment of parkinsonism. By preventing the conversion of levodopa to dopamine in the periphery, it causes an increase in the amount of levodopa reaching the central nervous system and so reduces the required dose. Benserazide has no antiparkinson actions when given alone.	1.98	1	0	carbohydrazide; catechols; primary alcohol; primary amino compound	antiparkinson drug; dopaminergic agent; EC 4.1.1.28 (aromatic-L-amino-acid decarboxylase) inhibitor
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.	2.03	1	0	pyrrolidines; tertiary amine	anti-arrhythmia drug; antihypertensive agent; calcium channel blocker; vasodilator agent
bisindolylmaleimide i bisindolylmaleimide I: a bis(indolyl)maleimide	2.73	3	0
buflomedil buflomedil: RN given refers to parent cpd; synonym LL 1656 refers to HCl; structure	3.06	1	0	aromatic ketone
bunazosin bunazosin: structure	1.97	1	0	quinazolines
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.	3.37	1	1	azaspiro compound; N-alkylpiperazine; N-arylpiperazine; organic heteropolycyclic compound; piperidones; pyrimidines	anxiolytic drug; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; sedative; serotonergic agonist
caffeine [no description available]	3.39	7	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.	2.66	3	0	aromatic ether; nitrile; polyether; tertiary amino compound
carvedilol [no description available]	3.46	1	1	carbazoles; secondary alcohol; secondary amino compound	alpha-adrenergic antagonist; antihypertensive agent; beta-adrenergic antagonist; cardiovascular drug; vasodilator agent
chelerythrine chelerythrine : A benzophenanthridine alkaloid isolated from the root of Zanthoxylum simulans, Chelidonium majus L., and other Papaveraceae.	2.94	4	0	benzophenanthridine alkaloid; organic cation	antibacterial agent; antineoplastic agent; EC 2.7.11.13 (protein kinase C) inhibitor
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.	1.97	1	0	benzothiadiazine	antihypertensive agent; diuretic
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.	2.37	2	0	organochlorine compound; phenothiazines; tertiary amine	anticoronaviral agent; antiemetic; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; phenothiazine antipsychotic drug
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.	4.41	2	2	2-benzofurans; cyclic ether; nitrile; organofluorine compound; tertiary amino compound
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.	2.04	1	0	dibenzoazepine	anticoronaviral agent; antidepressant; EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor; serotonergic antagonist; serotonergic drug; serotonin uptake inhibitor
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.	7.87	25	2	clonidine; imidazoline
cycloleucine Cycloleucine: An amino acid formed by cyclization of leucine. It has cytostatic, immunosuppressive and antineoplastic activities.. 1-aminocyclopentanecarboxylic acid : A non-proteinogenic alpha-amino acid that is cyclopentane substituted at position 1 by amino and carboxy groups.	4.41	21	0	non-proteinogenic alpha-amino acid	EC 2.5.1.6 (methionine adenosyltransferase) inhibitor
dantrolene Dantrolene: Skeletal muscle relaxant that acts by interfering with excitation-contraction coupling in the muscle fiber. It is used in spasticity and other neuromuscular abnormalities. Although the mechanism of action is probably not central, dantrolene is usually grouped with the central muscle relaxants.. dantrolene : The hydrazone resulting from the formal condensation of 5-(4-nitrophenyl)furfural with 1-aminohydantoin. A ryanodine receptor antagonist used for the relief of chronic severe spasticity and malignant hyperthermia.	2	1	0	hydrazone; imidazolidine-2,4-dione	muscle relaxant; neuroprotective agent; ryanodine receptor antagonist
dapi DAPI: RN given refers to parent cpd.	2.02	1	0	indoles	fluorochrome
debrisoquin Debrisoquin: An adrenergic neuron-blocking drug similar in effects to GUANETHIDINE. It is also noteworthy in being a substrate for a polymorphic cytochrome P-450 enzyme. Persons with certain isoforms of this enzyme are unable to properly metabolize this and many other clinically important drugs. They are commonly referred to as having a debrisoquin 4-hydroxylase polymorphism.	1.97	1	0	carboxamidine; isoquinolines	adrenergic agent; antihypertensive agent; human metabolite; sympatholytic agent
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.	13.44	45	2	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
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.	2.4	2	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.	5.19	4	3	1,4-benzodiazepinone; organochlorine compound	anticonvulsant; anxiolytic drug; environmental contaminant; sedative; xenobiotic
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.	1.97	1	0	piperidines; pyrimidopyrimidine; tertiary amino compound; tetrol	adenosine phosphodiesterase inhibitor; EC 3.5.4.4 (adenosine deaminase) inhibitor; platelet aggregation inhibitor; vasodilator agent
racemetirosine alpha-Methyltyrosine: 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. (Martindale, The Extra Pharmacopoeia, 30th ed)	2.89	4	0
dsp 4 DSP 4: RN given refers to parent cpd	1.97	1	0
e 4031 E 4031: class III anti-arrhythmia agent; structure given in UD	2.05	1	0	sulfonamide
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.	2.04	1	0	phenols; quaternary ammonium ion	antidote; diagnostic agent; EC 3.1.1.8 (cholinesterase) inhibitor
erythrosine Fluoresceins: A family of spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one derivatives. These are used as dyes, as indicators for various metals, and as fluorescent labels in immunoassays.	2.03	1	0
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.	1.99	1	0	ether; volatile organic compound	inhalation anaesthetic; non-polar solvent; refrigerant
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.	1.96	1	0	anilide; monocarboxylic acid amide; piperidines	adjuvant; anaesthesia adjuvant; anaesthetic; intravenous anaesthetic; mu-opioid receptor agonist; opioid analgesic
fluphenazine [no description available]	3.77	2	1	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.	1.97	1	0	ethyl ester; imidazobenzodiazepine; organofluorine compound	antidote to benzodiazepine poisoning; GABA antagonist
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.	3.38	1	1	(trifluoromethyl)benzenes; aromatic ether; secondary amino compound
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.	1.96	1	0	pyrazoles	antidote; EC 1.1.1.1 (alcohol dehydrogenase) inhibitor; protective agent
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.	2.02	1	0	chlorobenzoic acid; furans; sulfonamide	environmental contaminant; loop diuretic; xenobiotic
gö6983 [no description available]	2.02	1	0	indoles; maleimides
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.	3.35	7	0	azocanes; guanidines	adrenergic antagonist; antihypertensive agent; sympatholytic agent
1-(5-isoquinolinesulfonyl)-2-methylpiperazine 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine: A specific protein kinase C inhibitor, which inhibits superoxide release from human neutrophils (PMN) stimulated with phorbol myristate acetate or synthetic diacylglycerol.. 1-(5-isoquinolinesulfonyl)-2-methylpiperazine : A member of the class of N-sulfonylpiperazines that is 2-methylpiperazine substituted at position 1 by a 5-isoquinolinesulfonyl group.	2.41	2	0	isoquinolines; N-sulfonylpiperazine	EC 2.7.11.13 (protein kinase C) inhibitor
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.	2.4	2	0	aromatic ketone; hydroxypiperidine; monochlorobenzenes; organofluorine compound; tertiary alcohol	antidyskinesia agent; antiemetic; dopaminergic antagonist; first generation antipsychotic; serotonergic antagonist
halothane [no description available]	7.68	3	0	haloalkane; organobromine compound; organochlorine compound; organofluorine compound	inhalation anaesthetic
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.	2.04	1	0	azaarene; hydrazines; ortho-fused heteroarene; phthalazines	antihypertensive agent; vasodilator agent
hypericin [no description available]	3.4	1	1
phenelzine Phenelzine: One of the MONOAMINE OXIDASE INHIBITORS used to treat DEPRESSION; PHOBIC DISORDERS; and PANIC.	3.35	1	1	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.	2.68	3	0	benzenes; monocarboxylic acid amide; tertiary amino compound	anti-arrhythmia drug; drug allergen; environmental contaminant; local anaesthetic; 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.	4.27	4	1	dibenzoazepine	adrenergic uptake inhibitor; antidepressant; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
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.	2.1	1	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
isoflurane Isoflurane: A stable, non-explosive inhalation anesthetic, relatively free from significant side effects.	3.36	1	1	organofluorine compound	inhalation anaesthetic
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.	4.77	12	0	catechols; secondary alcohol; secondary amino compound	beta-adrenergic agonist; bronchodilator agent; cardiotonic drug; sympathomimetic agent
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.	2.4	2	0	cyclohexanones; monochlorobenzenes; secondary amino compound	analgesic; environmental contaminant; intravenous anaesthetic; neurotoxin; NMDA receptor antagonist; xenobiotic
kynurenic acid Kynurenic Acid: A broad-spectrum excitatory amino acid antagonist used as a research tool.. kynurenic acid : A quinolinemonocarboxylic acid that is quinoline-2-carboxylic acid substituted by a hydroxy group at C-4.	2	1	0	monohydroxyquinoline; quinolinemonocarboxylic acid	G-protein-coupled receptor agonist; human metabolite; neuroprotective agent; nicotinic antagonist; NMDA receptor antagonist; Saccharomyces cerevisiae metabolite
2-amino-3-phosphonopropionic acid 2-amino-3-phosphonopropionic acid: metabotropic glutamate receptor antagonist; do not confuse AP-3 used as an abbreviation for this with enhancer-binding protein AP-3 (a trans-activator) or clathrin assembly protein AP-3. 2-amino-3-phosphonopropanoic acid : A non-proteinogenc alpha-amino acid that is alanine in which one of the hydrogens of the terminal methyl group has been replaced by a dihydroxy(oxido)-lambda(5)-phosphanyl group.	2.42	2	0	alanine derivative; non-proteinogenic alpha-amino acid; phosphonic acids	human metabolite; metabotropic glutamate receptor antagonist
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.	3.36	1	1	benzamides; benzenes; phenols; primary carboxamide; salicylamides; secondary alcohol; secondary amino compound
lamotrigine [no description available]	2	1	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
lavendustin a lavendustin A: from Streptomyces griseolavendus; structure given in first source	2	1	0	aromatic amine
nordefrin Nordefrin: A norepinephrine derivative used as a vasoconstrictor agent.	1.96	1	0	catecholamine
qx-314 QX-314: triethyl analog of lidocaine; RN & NM refer to ion	2.42	2	0	monocarboxylic acid amide	local anaesthetic
2-(4-morpholinyl)-8-phenyl-4h-1-benzopyran-4-one 2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one: specific inhibitor of phosphatidylinositol 3-kinase; structure in first source	2.44	2	0	chromones; morpholines; organochlorine compound	autophagy inhibitor; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor; geroprotector
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.	2.88	4	0	anthracenes
mazindol Mazindol: Tricyclic anorexigenic agent unrelated to and less toxic than AMPHETAMINE, but with some similar side effects. It inhibits uptake of catecholamines and blocks the binding of cocaine to the dopamine uptake transporter.	1.96	1	0	organic molecular entity
memantine [no description available]	2.98	1	0	adamantanes; primary aliphatic amine	antidepressant; antiparkinson drug; dopaminergic agent; neuroprotective agent; NMDA receptor antagonist
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.	3.38	1	1	ethyl ester; piperidinecarboxylate ester; tertiary amino compound	antispasmodic drug; kappa-opioid receptor agonist; mu-opioid receptor agonist; opioid analgesic
mianserin Mianserin: A tetracyclic compound with antidepressant effects. It may cause drowsiness and hematological problems. Its mechanism of therapeutic action is not well understood, although it apparently blocks alpha-adrenergic, histamine H1, and some types of serotonin receptors.. mianserin : A dibenzoazepine (specifically 1,2,3,4,10,14b-hexahydrodibenzo[c,f]pyrazino[1,2-a]azepine) methyl-substituted on N-2. Closely related to (and now mostly superseded by) the tetracyclic antidepressant mirtazapinean, it is an atypical antidepressant used in the treatment of depression throughout Europe and elsewhere.	1.97	1	0	dibenzoazepine	adrenergic uptake inhibitor; alpha-adrenergic antagonist; antidepressant; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; geroprotector; H1-receptor antagonist; histamine agonist; sedative; serotonergic antagonist
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.	6.58	8	7	benzamides; monochlorobenzenes; morpholines	antidepressant; environmental contaminant; xenobiotic
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.	1.96	1	0	alkaloid; isoxazoles; primary amino compound	fungal metabolite; GABA agonist; oneirogen; psychotropic drug
ethylmaleimide Ethylmaleimide: A sulfhydryl reagent that is widely used in experimental biochemical studies.	2	1	0	maleimides	anticoronaviral agent; EC 1.3.1.8 [acyl-CoA dehydrogenase (NADP(+))] inhibitor; EC 2.1.1.122 [(S)-tetrahydroprotoberberine N-methyltransferase] inhibitor; EC 2.7.1.1 (hexokinase) inhibitor
fg 7142 FG 7142: benzodiazepine receptor agonist	1.97	1	0	beta-carbolines
clorgyline Clorgyline: An antidepressive agent and monoamine oxidase inhibitor related to PARGYLINE.. clorgyline : An aromatic ether that is the 2,4-dichlorophenyl ether of 3-aminopropan-1-ol in which the nitrogen is substituted by a methyl group and a prop-1-yn-3-yl group. A monoamine oxidase inhibitor, it was formerly used as an antidepressant.	3.48	8	0	aromatic ether; dichlorobenzene; terminal acetylenic compound; tertiary amino compound	antidepressant; EC 1.4.3.4 (monoamine oxidase) inhibitor
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.	2.9	4	0	quaternary ammonium ion	antidote to curare poisoning; EC 3.1.1.7 (acetylcholinesterase) inhibitor
nialamide Nialamide: An MAO inhibitor that is used as an antidepressive agent.	2.37	2	0	organonitrogen compound; organooxygen compound
nifedipine Nifedipine: A potent vasodilator agent with calcium antagonistic action. It is a useful anti-anginal agent that also lowers blood pressure.	2.01	1	0	C-nitro compound; dihydropyridine; methyl ester	calcium channel blocker; human metabolite; tocolytic agent; vasodilator agent
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.	2.02	1	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.	3.36	1	1	C-nitro compound; dicarboxylic acids and O-substituted derivatives; diester; dihydropyridine; methyl ester
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.	2.4	2	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.	2.67	3	0	nitroglycerol	explosive; muscle relaxant; nitric oxide donor; prodrug; tocolytic agent; vasodilator agent; xenobiotic
norfenefrine norfenefrine: RN given refers to cpd without isomeric designation; structure	1.97	1	0	phenols
5-nitro-2-(3-phenylpropylamino)benzoic acid 5-nitro-2-(3-phenylpropylamino)benzoic acid: structure given in first source; chloride channel antagonist	2.02	1	0	nitrobenzoic acid
octopamine Octopamine: An alpha-adrenergic sympathomimetic amine, biosynthesized from tyramine in the CNS and platelets and also in invertebrate nervous systems. It is used to treat hypotension and as a cardiotonic. The natural D(-) form is more potent than the L(+) form in producing cardiovascular adrenergic responses. It is also a neurotransmitter in some invertebrates.. octopamine : A member of the class of phenylethanolamines that is phenol which is substituted at the para- position by a 2-amino-1-hydroxyethyl group. A biogenic phenylethanolamine which has been found to act as a neurotransmitter, neurohormone or neuromodulator in invertebrates.	1.97	1	0	phenylethanolamines; tyramines	neurotransmitter
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).	3.39	7	0	benzenetriol; catecholamine; primary amino compound	drug metabolite; human metabolite; neurotoxin
oxotremorine m oxotremorine M: structure given in first source	2.08	1	0	quaternary ammonium ion	muscarinic agonist
oxotremorine Oxotremorine: A non-hydrolyzed muscarinic agonist used as a research tool.	2.08	1	0	N-alkylpyrrolidine
pargyline Pargyline: A monoamine oxidase inhibitor with antihypertensive properties.	3.58	9	0	aromatic amine
pd 98059 2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one: inhibits MAP kinase kinase (MEK) activity, p42 MAPK and p44 MAPK; structure in first source. 2-(2-amino-3-methoxyphenyl)chromen-4-one : A member of the class of monomethoxyflavones that is 3'-methoxyflavone bearing an additional amino substituent at position 2'.	2.01	1	0	aromatic amine; monomethoxyflavone	EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor; geroprotector
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.	1.98	1	0	barbiturates	GABAA receptor agonist
phenazopyridine Phenazopyridine: A local anesthetic that has been used in urinary tract disorders. Its use is limited by problems with toxicity (primarily blood disorders) and potential carcinogenicity.. phenazopyridine : A diaminopyridine that is 2,6-diaminopyridine substituted at position 3 by a phenylazo group. A local anesthetic that has topical analgesic effect on mucosa lining of the urinary tract. Its use is limited by problems with toxicity (primarily blood disorders) and potential carcinogenicity.	2	1	0	diaminopyridine; monoazo compound	anticoronaviral agent; carcinogenic agent; local anaesthetic; non-narcotic analgesic
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.	1.95	1	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.	1.99	1	0	aromatic amine
moxonidine moxonidine: structure given in first source	1.98	1	0	organohalogen compound; pyrimidines
pinacidil Pinacidil: A guanidine that opens POTASSIUM CHANNELS producing direct peripheral vasodilatation of the ARTERIOLES. It reduces BLOOD PRESSURE and peripheral resistance and produces fluid retention. (Martindale The Extra Pharmacopoeia, 31st ed)	1.97	1	0	pyridines
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.	4.4	1	1	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
pirenzepine Pirenzepine: An antimuscarinic agent that inhibits gastric secretion at lower doses than are required to affect gastrointestinal motility, salivary, central nervous system, cardiovascular, ocular, and urinary function. It promotes the healing of duodenal ulcers and due to its cytoprotective action is beneficial in the prevention of duodenal ulcer recurrence. It also potentiates the effect of other antiulcer agents such as CIMETIDINE and RANITIDINE. It is generally well tolerated by patients.	2.45	2	0	pyridobenzodiazepine	anti-ulcer drug; antispasmodic drug; muscarinic antagonist
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.	3.13	5	0	inorganic chloride; inorganic potassium salt; potassium salt	fertilizer
ag 1879 3-(4-chlorophenyl)-1-(1,1-dimethylethyl)-1H-pyrazolo(3,4-d)pyrimidin-4-amine: Fyn kinase inhibitor	2.04	1	0	aromatic amine; monochlorobenzenes; pyrazolopyrimidine	beta-adrenergic antagonist; EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor; geroprotector
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.	2.66	3	0	aromatic ether; furans; monocarboxylic acid amide; piperazines; quinazolines	alpha-adrenergic antagonist; antihypertensive agent; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
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.	3.06	5	0	benzoic acids; sulfonamide	uricosuric drug
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.	1.96	1	0	benzoate ester; substituted aniline; tertiary amino compound	central nervous system depressant; drug allergen; local anaesthetic; peripheral nervous system drug
propidium Propidium: Quaternary ammonium analog of ethidium; an intercalating dye with a specific affinity to certain forms of DNA and, used as diiodide, to separate them in density gradients; also forms fluorescent complexes with cholinesterase which it inhibits.	2.44	2	0	phenanthridines; quaternary ammonium ion	fluorochrome; intercalator
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.	3.81	2	1	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.	2.66	3	0	naphthalenes; propanolamine; secondary amine	anti-arrhythmia drug; antihypertensive agent; anxiolytic drug; beta-adrenergic antagonist; environmental contaminant; human blood serum metabolite; vasodilator agent; xenobiotic
1,6-bis(cyclohexyloximinocarbonyl)hexane 1,6-bis(cyclohexyloximinocarbonyl)hexane: selective inhibitor of canine platelet diglyceride lipase	2.07	1	0	carbamate ester; organonitrogen compound
riluzole Riluzole: A glutamate antagonist (RECEPTORS, GLUTAMATE) used as an anticonvulsant (ANTICONVULSANTS) and to prolong the survival of patients with AMYOTROPHIC LATERAL SCLEROSIS.	2	1	0	benzothiazoles
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.	2.01	1	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	3.38	1	1	tryptamines	anti-inflammatory drug; serotonergic agonist; vasoconstrictor agent
ro 31-8220 Ro 31-8220: a protein kinase C inhibitor	2.41	2	0	imidothiocarbamic ester; indoles; maleimides	EC 2.7.11.13 (protein kinase C) inhibitor
4-carboxyphenylglycine 4-carboxyphenylglycine: RN given for (+-)-isomer; RN for cpd without isomeric designation not available 3/93; glutamate receptor antagonist	2.74	3	0	alpha-amino acid
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.	2	1	0	ether; organofluorine compound	central nervous system depressant; inhalation anaesthetic; platelet aggregation inhibitor
sk&f 97541 3-aminopropyl(methyl)phosphinic acid: structure given in first source; GABA-A receptor antagonist	2.01	1	0
spiperone Spiperone: A spiro butyrophenone analog similar to HALOPERIDOL and other related compounds. It has been recommended in the treatment of SCHIZOPHRENIA.. spiperone : An azaspiro compound that is 1,3,8-triazaspiro[4.5]decane which is substituted at positions 1, 4, and 8 by phenyl, oxo, and 4-(p-fluorophenyl)-4-oxobutyl groups, respectively.	1.97	1	0	aromatic ketone; azaspiro compound; organofluorine compound; piperidines; tertiary amino compound	alpha-adrenergic antagonist; antipsychotic agent; dopaminergic antagonist; psychotropic drug; serotonergic antagonist
sulpiride Sulpiride: A dopamine D2-receptor antagonist. It has been used therapeutically as an antidepressant, antipsychotic, and as a digestive aid. (From Merck Index, 11th ed). sulpiride : A member of the class of benzamides obtained from formal condensation between the carboxy group of 2-methoxy-5-sulfamoylbenzoic acid and the primary amino group of (1-ethylpyrrolidin-2-yl)methylamine.	2.43	2	0	benzamides; N-alkylpyrrolidine; sulfonamide	antidepressant; antiemetic; antipsychotic agent; dopaminergic antagonist
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.	3.38	1	1	sulfonamide; tryptamines	serotonergic agonist; vasoconstrictor agent
tetraethylammonium Tetraethylammonium: A potassium-selective ion channel blocker. (From J Gen Phys 1994;104(1):173-90)	2.05	1	0	quaternary ammonium ion
3-hydroxyaspartic acid 3-hydroxyaspartic acid: RN given refers to cpd without isomeric designation. 3-hydroxyaspartic acid : A hydroxy-amino acid that is aspartic acid in which one of the methylene hydrogens has been replaced by a hydroxy group.	2	1	0	amino dicarboxylic acid; aspartic acid derivative; C4-dicarboxylic acid; hydroxy-amino acid
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.	1.96	1	0	N-sulfonylurea	human metabolite; hypoglycemic agent; insulin secretagogue; potassium channel blocker
(1,2,5,6-tetrahydropyridin-4-yl)methylphosphinic acid (1,2,5,6-tetrahydropyridin-4-yl)methylphosphinic acid: a GABA-C receptor antagonist; structure in first source	2.15	1	0
tyramine [no description available]	8.33	21	4	monoamine molecular messenger; primary amino compound; tyramines	EC 3.1.1.8 (cholinesterase) inhibitor; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter
tyrphostin a9 [no description available]	2.03	1	0	alkylbenzene	geroprotector
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.	2.02	1	0	imidazopyridine	central nervous system depressant; GABA agonist; sedative
corticosterone [no description available]	4.24	18	0	11beta-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(4) steroid; C21-steroid; glucocorticoid; primary alpha-hydroxy ketone	human metabolite; mouse metabolite
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.	4.17	17	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
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.	2.88	4	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).	2.67	3	0	glucitol	cathartic; Escherichia coli metabolite; food humectant; human metabolite; laxative; metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite; sweetening agent
thymidine [no description available]	1.96	1	0	pyrimidine 2'-deoxyribonucleoside	Escherichia coli metabolite; human metabolite; metabolite; mouse metabolite
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.	2.39	2	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.	3.9	12	0	ammonium salt; carbamate ester	cardiotonic drug; miotic; muscarinic agonist; nicotinic acetylcholine receptor agonist; non-narcotic analgesic
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.	3.37	1	1	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
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.	2.74	3	0	pilocarpine	antiglaucoma drug
dimethylphenylpiperazinium iodide Dimethylphenylpiperazinium Iodide: A selective nicotinic cholinergic agonist used as a research tool. DMPP activates nicotinic receptors in autonomic ganglia but has little effect at the neuromuscular junction.	1.99	1	0	N-arylpiperazine; organic iodide salt; piperazinium salt; quaternary ammonium salt	nicotinic acetylcholine receptor agonist
alanine Alanine: A non-essential amino acid that occurs in high levels in its free state in plasma. It is produced from pyruvate by transamination. It is involved in sugar and acid metabolism, increases IMMUNITY, and provides energy for muscle tissue, BRAIN, and the CENTRAL NERVOUS SYSTEM.. alanine : An alpha-amino acid that consists of propionic acid bearing an amino substituent at position 2.	2.93	4	0	alanine zwitterion; alanine; L-alpha-amino acid; proteinogenic amino acid; pyruvate family amino acid	EC 4.3.1.15 (diaminopropionate ammonia-lyase) inhibitor; fundamental metabolite
serine Serine: A non-essential amino acid occurring in natural form as the L-isomer. It is synthesized from GLYCINE or THREONINE. It is involved in the biosynthesis of PURINES; PYRIMIDINES; and other amino acids.. serine : An alpha-amino acid that is alanine substituted at position 3 by a hydroxy group.	4.92	8	1	L-alpha-amino acid; proteinogenic amino acid; serine family amino acid; serine zwitterion; serine	algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
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.	4.04	14	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.	3.65	2	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
lysine Lysine: An essential amino acid. It is often added to animal feed.. lysine : A diamino acid that is caproic (hexanoic) acid bearing two amino substituents at positions 2 and 6.. L-lysine : An L-alpha-amino acid; the L-isomer of lysine.	2.07	1	0	aspartate family amino acid; L-alpha-amino acid zwitterion; L-alpha-amino acid; lysine; organic molecular entity; proteinogenic amino acid	algal metabolite; anticonvulsant; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; 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.	3.07	5	0	pseudohalide anion	EC 1.9.3.1 (cytochrome c oxidase) inhibitor
sucrose Saccharum: A plant genus of the family POACEAE widely cultivated in the tropics for the sweet cane that is processed into sugar.	2.73	3	0	glycosyl glycoside	algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; osmolyte; Saccharomyces cerevisiae metabolite; sweetening agent
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.	2.01	1	0	bisbenzylisoquinoline alkaloid	drug allergen; muscle relaxant; nicotinic antagonist
2,3,4,6-tetrachlorophenol 2,3,4,6-tetrachlorophenol: RN given refers to parent cpd; see also record for tetrachlorophenol with locants for chloro groups not specified. 2,3,4,6-tetrachlorophenol : A tetrachlorophenol in which the chlorines are located at positions 2, 3, 4, and 6.	1.97	1	0	tetrachlorophenol	xenobiotic metabolite
piperoxan Piperoxan: A benzodioxane alpha-adrenergic blocking agent with considerable stimulatory action. It has been used to diagnose PHEOCHROMOCYTOMA and as an antihypertensive agent.	1.96	1	0
phenylephrine Phenylephrine: An alpha-1 adrenergic agonist used as a mydriatic, nasal decongestant, and cardiotonic agent.. phenylephrine : A member of the class of the class of phenylethanolamines that is (1R)-2-(methylamino)-1-phenylethan-1-ol carrying an additional hydroxy substituent at position 3 on the phenyl ring.	4.06	3	1	phenols; phenylethanolamines; secondary amino compound	alpha-adrenergic agonist; cardiotonic drug; mydriatic agent; nasal decongestant; protective agent; sympathomimetic agent; vasoconstrictor agent
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	4.87	8	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.	1.97	1	0	ethylenediamine derivative; polyamino carboxylic acid; tetracarboxylic acid	anticoagulant; antidote; chelator; copper chelator; geroprotector
phenylethyl alcohol Phenylethyl Alcohol: An antimicrobial, antiseptic, and disinfectant that is used also as an aromatic essence and preservative in pharmaceutics and perfumery.. 2-phenylethanol : A primary alcohol that is ethanol substituted by a phenyl group at position 2.	5.68	18	1	benzenes; primary alcohol	Aspergillus metabolite; fragrance; plant growth retardant; plant metabolite; Saccharomyces cerevisiae metabolite
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.	4.67	9	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.	2.37	2	0	amine; thiol	geroprotector; human metabolite; mouse metabolite; radiation protective agent
methylene blue Methylene Blue: A compound consisting of dark green crystals or crystalline powder, having a bronze-like luster. Solutions in water or alcohol have a deep blue color. Methylene blue is used as a bacteriologic stain and as an indicator. It inhibits GUANYLATE CYCLASE, and has been used to treat cyanide poisoning and to lower levels of METHEMOGLOBIN.. methylene blue : An organic chloride salt having 3,7-bis(dimethylamino)phenothiazin-5-ium as the counterion. A commonly used dye that also exhibits antioxidant, antimalarial, antidepressant and cardioprotective properties.	1.97	1	0	organic chloride salt	acid-base indicator; antidepressant; antimalarial; antimicrobial agent; antioxidant; cardioprotective agent; EC 1.4.3.4 (monoamine oxidase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; EC 4.6.1.2 (guanylate cyclase) inhibitor; fluorochrome; histological dye; neuroprotective agent; physical tracer
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.	2.01	1	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
phenylalanine Phenylalanine: An essential aromatic amino acid that is a precursor of MELANIN; DOPAMINE; noradrenalin (NOREPINEPHRINE), and THYROXINE.. L-phenylalanine : The L-enantiomer of phenylalanine.. phenylalanine : An aromatic amino acid that is alanine in which one of the methyl hydrogens is substituted by a phenyl group.	2.39	2	0	amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; phenylalanine; proteinogenic amino acid	algal metabolite; EC 3.1.3.1 (alkaline phosphatase) inhibitor; Escherichia coli metabolite; human xenobiotic metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite
desoxycorticosterone Desoxycorticosterone: A steroid metabolite that is the 11-deoxy derivative of CORTICOSTERONE and the 21-hydroxy derivative of PROGESTERONE	1.96	1	0	20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(4) steroid; mineralocorticoid; primary alpha-hydroxy ketone	human metabolite; mouse metabolite
cycloheximide Cycloheximide: Antibiotic substance isolated from streptomycin-producing strains of Streptomyces griseus. It acts by inhibiting elongation during protein synthesis.. cycloheximide : A dicarboximide that is 4-(2-hydroxyethyl)piperidine-2,6-dione in which one of the hydrogens attached to the carbon bearing the hydroxy group is replaced by a 3,5-dimethyl-2-oxocyclohexyl group. It is an antibiotic produced by the bacterium Streptomyces griseus.	3.43	7	0	antibiotic fungicide; cyclic ketone; dicarboximide; piperidine antibiotic; piperidones; secondary alcohol	anticoronaviral agent; bacterial metabolite; ferroptosis inhibitor; neuroprotective agent; protein synthesis inhibitor
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.	3.42	7	0	diether; tertiary amino compound; tetracarboxylic acid	chelator
chlorisondamine Chlorisondamine: A nicotinic antagonist used primarily as a ganglionic blocker in animal research. It has been used as an antihypertensive agent but has been supplanted by more specific drugs in most clinical applications.	2.66	3	0	isoindoles
asparagine Asparagine: A non-essential amino acid that is involved in the metabolic control of cell functions in nerve and brain tissue. It is biosynthesized from ASPARTIC ACID and AMMONIA by asparagine synthetase. (From Concise Encyclopedia Biochemistry and Molecular Biology, 3rd ed). asparagine : An alpha-amino acid in which one of the hydrogens attached to the alpha-carbon of glycine is substituted by a 2-amino-2-oxoethyl group.	2.04	1	0	amino acid zwitterion; asparagine; aspartate family amino acid; L-alpha-amino acid; proteinogenic amino acid	Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite
n-pentanol n-pentanol: RN given refers to parent cpd. pentan-1-ol : A short-chain primary fatty alcohol that is pentane in which a hydrogen of one of the methyl groups is substituted by a hydroxy group. It has been isolated from Melicope ptelefolia.	1.98	1	0	pentanol; short-chain primary fatty alcohol	human metabolite; plant metabolite
valine Valine: A branched-chain essential amino acid that has stimulant activity. It promotes muscle growth and tissue repair. It is a precursor in the penicillin biosynthetic pathway.. valine : A branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isopropyl group.. L-valine : The L-enantiomer of valine.	3.3	6	0	L-alpha-amino acid zwitterion; L-alpha-amino acid; proteinogenic amino acid; pyruvate family amino acid; valine	algal metabolite; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite
threonine Threonine: An essential amino acid occurring naturally in the L-form, which is the active form. It is found in eggs, milk, gelatin, and other proteins.. threonine : An alpha-amino acid in which one of the hydrogens attached to the alpha-carbon of glycine is substituted by a 1-hydroxyethyl group.	2.05	1	0	amino acid zwitterion; aspartate family amino acid; L-alpha-amino acid; proteinogenic amino acid; threonine	algal metabolite; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite
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.	5.38	4	1	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
isoleucine Isoleucine: An essential branched-chain aliphatic amino acid found in many proteins. It is an isomer of LEUCINE. It is important in hemoglobin synthesis and regulation of blood sugar and energy levels.. isoleucine : A 2-amino-3-methylpentanoic acid having either (2R,3R)- or (2S,3S)-configuration.. L-isoleucine : The L-enantiomer of isoleucine.	2.04	1	0	aspartate family amino acid; isoleucine; L-alpha-amino acid zwitterion; L-alpha-amino acid; proteinogenic amino acid	algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; 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.	1.98	1	0	arginine; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid	biomarker; Escherichia coli metabolite; micronutrient; mouse metabolite; nutraceutical
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)	1.96	1	0	primary amino compound; triol	buffer
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.	1.98	1	0	glucitol derivative; nitrate ester	nitric oxide donor; vasodilator agent
quinoxalines quinoxaline : A naphthyridine in which the nitrogens are at positions 1 and 4.	3.99	13	0	mancude organic heterobicyclic parent; naphthyridine; ortho-fused heteroarene
xanthenes Xanthenes: Compounds with three aromatic rings in linear arrangement with an OXYGEN in the center ring.	4.1	15	0	xanthene
benzoyl chloride benzoyl chloride: potential carcinogens in manufacturing process. benzoyl chloride : An acyl chloride consisting of benzene in which a hydrogen is replaced by an acyl chloride group. It is an important chemical intermediate for the manufacture of other chemicals, dyes, perfumes, herbicides and pharmaceuticals.	2.11	1	0	acyl chloride; benzenes	carcinogenic agent
allylamine Allylamine: Possesses an unusual and selective cytotoxicity for VASCULAR SMOOTH MUSCLE cells in dogs and rats. Useful for experiments dealing with arterial injury, myocardial fibrosis or cardiac decompensation.	1.97	1	0	alkylamine
cyclohexanol Cyclohexanols: Monohydroxy derivatives of cyclohexanes that contain the general formula R-C6H11O. They have a camphorlike odor and are used in making soaps, insecticides, germicides, dry cleaning, and plasticizers.. cyclohexanols : An alcohol in which one or more hydroxy groups are attached to a cyclohexane skeleton.	3.51	1	1	cyclohexanols; secondary alcohol	solvent
thiophenes Thiophenes: A monocyclic heteroarene furan in which the oxygen atom is replaced by a sulfur.. thiophenes : Compounds containing at least one thiophene ring.	5.98	5	2	mancude organic heteromonocyclic parent; monocyclic heteroarene; thiophenes; volatile organic compound	non-polar solvent
pyrazolanthrone pyrazolanthrone: JNK (c-Jun N-terminal kinase) inhibitor; structure in first source. anthra[1,9-cd]pyrazol-6(2H)-one : A member of the class of anthrapyrazoles that is anthra[1,9-cd]pyrazole substituted at position 6 by an oxo group. An inhibitor of c-Jun N-terminal kinase.	2.03	1	0	anthrapyrazole; aromatic ketone; cyclic ketone	antineoplastic agent; c-Jun N-terminal kinase inhibitor; geroprotector
1-naphthylamine 1-Naphthylamine: A suspected industrial carcinogen (and listed as such by OSHA). Its N-hydroxy metabolite is strongly carcinogenic and mutagenic.. naphthylamine : A primary arylamine that is naphthalene substituted by an amino group at unspecified position.. 1-naphthylamine : A naphthylamine that is naphthalene substituted by an amino group at position 1.	3.04	1	0	naphthylamine	human xenobiotic metabolite
2-naphthol 2-naphthol: RN given refers to parent cpd. 2-naphthol : A naphthol carrying a hydroxy group at position 2.. naphthols : Any hydroxynaphthalene derivative that has a single hydroxy substituent.	2.41	2	0	naphthol	antinematodal drug; genotoxin; human urinary metabolite; human xenobiotic metabolite; mouse metabolite; radical scavenger
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.	9.42	30	4	methyl 17-hydroxy-20xi-yohimban-16-carboxylate	alpha-adrenergic antagonist; dopamine receptor D2 antagonist; serotonergic antagonist
ditiocarb Ditiocarb: A chelating agent that has been used to mobilize toxic metals from the tissues of humans and experimental animals. It is the main metabolite of DISULFIRAM.. diethyldithiocarbamic acid : A member of the class of dithiocarbamic acids that is diethylcarbamic acid in which both of the oxygens are replaced by sulfur.	1.96	1	0	dithiocarbamic acids	chelator; copper chelator
perylene Perylene: A 20-carbon dibenz(de,kl)anthracene that can be viewed as a naphthalene fused to a phenalene or as dinaphthalene. It is used as fluorescent lipid probe in the cytochemistry of membranes and is a polycyclic hydrocarbon pollutant in soil and water. Derivatives may be carcinogenic.. perylene : An ortho- and peri-fused polycyclic arene comprising of five benzene rings that is anthracene in which the d,e and k,l sides are fused to benzene rings.	3.4	1	1	ortho- and peri-fused polycyclic arene; perylenes
quinazolines Quinazolines: A group of aromatic heterocyclic compounds that contain a bicyclic structure with two fused six-membered aromatic rings, a benzene ring and a pyrimidine ring.. quinazoline : A mancude organic heterobicyclic parent that is naphthalene in which the carbon atoms at positions 1 and 3 have been replaced by nitrogen atoms.. quinazolines : Any organic heterobicyclic compound based on a quinazoline skeleton and its substituted derivatives.	1.97	1	0	azaarene; mancude organic heterobicyclic parent; ortho-fused heteroarene; quinazolines
oxazoles Oxazoles: Five-membered heterocyclic ring structures containing an oxygen in the 1-position and a nitrogen in the 3-position, in distinction from ISOXAZOLES where they are at the 1,2 positions.. 1,3-oxazole : A five-membered monocyclic heteroarene that is an analogue of cyclopentadiene with O in place of CH2 at position 1 and N in place of CH at position 3.. oxazole : An azole based on a five-membered heterocyclic aromatic skeleton containing one N and one O atom.	5.81	6	4	1,3-oxazoles; mancude organic heteromonocyclic parent; monocyclic heteroarene
thiazoles [no description available]	3.43	7	0	1,3-thiazoles; mancude organic heteromonocyclic parent; monocyclic heteroarene
pyrazines Pyrazines: A heterocyclic aromatic organic compound with the chemical formula C4H4N2.. pyrazine : A diazine that is benzene in which the carbon atoms at positions 1 and 4 have been replaced by nitrogen atoms.	2.07	1	0	diazine; pyrazines	Daphnia magna metabolite
muscarine Muscarine: A toxic alkaloid found in Amanita muscaria (fly fungus) and other fungi of the Inocybe species. It is the first parasympathomimetic substance ever studied and causes profound parasympathetic activation that may end in convulsions and death. The specific antidote is atropine.	2.07	1	0	monosaccharide
hydrazine diamine : Any polyamine that contains two amino groups.	2.39	2	0	azane; hydrazines	EC 4.3.1.10 (serine-sulfate ammonia-lyase) inhibitor
2h-benzo(a)quinolizin-2-ol, 2-ethyl-1,3,4,6,7,11b-hexahydro-3-isobutyl-9,10-dimethoxy- 2H-Benzo(a)quinolizin-2-ol, 2-Ethyl-1,3,4,6,7,11b-hexahydro-3-isobutyl-9,10-dimethoxy-: Proposed catecholamine depletor.	3.07	5	0
methysergide Methysergide: An ergot derivative that is a congener of LYSERGIC ACID DIETHYLAMIDE. It antagonizes the effects of serotonin in blood vessels and gastrointestinal smooth muscle, but has few of the properties of other ergot alkaloids. Methysergide is used prophylactically in migraine and other vascular headaches and to antagonize serotonin in the carcinoid syndrome.. methysergide : A synthetic ergot alkaloid, structurally related to the oxytocic agent methylergonovine and to the potent hallucinogen LSD and used prophylactically to reduce the frequency and intensity of severe vascular headaches.	3.36	1	1	ergoline alkaloid
hydantoins Hydantoins: Compounds based on imidazolidine dione. Some derivatives are ANTICONVULSANTS.. imidazolidine-2,4-dione : An imidazolidinone with oxo groups at position 2 and 4.	2	1	0	imidazolidine-2,4-dione
fluorobenzenes Fluorobenzenes: Derivatives of BENZENE that contain FLUORINE.. monofluorobenzene : The simplest member of the class of monofluorobenzenes that is benzene carrying a single fluoro substituent.. fluorobenzenes : Any fluoroarene that is a benzene or a substituted benzene carrying at least one fluoro group.	2.06	1	0	monofluorobenzenes	NMR chemical shift reference compound
emetine Emetine: The principal alkaloid of ipecac, from the ground roots of Uragoga (or Cephaelis) ipecacuanha or U. acuminata, of the Rubiaceae. It is used as an amebicide in many different preparations and may cause serious cardiac, hepatic, or renal damage and violent diarrhea and vomiting. Emetine inhibits protein synthesis in EUKARYOTIC CELLS but not PROKARYOTIC CELLS.. emetine : A pyridoisoquinoline comprising emetam having methoxy substituents at the 6'-, 7'-, 10- and 11-positions. It is an antiprotozoal agent and emetic. It inhibits SARS-CoV2, Zika and Ebola virus replication and displays antimalarial, antineoplastic and antiamoebic properties.	2	1	0	isoquinoline alkaloid; pyridoisoquinoline	antiamoebic agent; anticoronaviral agent; antiinfective agent; antimalarial; antineoplastic agent; antiprotozoal drug; antiviral agent; autophagy inhibitor; emetic; expectorant; plant metabolite; protein synthesis inhibitor
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.	3.97	13	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.	3.52	8	0	dicarboxylic acid; L-proline derivative; non-proteinogenic L-alpha-amino acid; pyrrolidinecarboxylic acid	antinematodal drug; excitatory amino acid agonist
4-hydroxyphenylethanol 4-hydroxyphenylethanol: in chest gland secretion of galagos. 2-(4-hydroxyphenyl)ethanol : A phenol substituted at position 4 by a 2-hydroxyethyl group.	2.05	1	0	phenols	anti-arrhythmia drug; antioxidant; cardiovascular drug; fungal metabolite; geroprotector; plant metabolite; protective agent
thiazolidines Thiazolidines: Reduced (protonated) form of THIAZOLES. They can be oxidized to THIAZOLIDINEDIONES.	2.02	1	0	thiazolidine
oleanolic acid [no description available]	2.03	1	0	hydroxy monocarboxylic acid; pentacyclic triterpenoid	plant metabolite
hematoxylin Hematoxylin: A dye obtained from the heartwood of logwood (Haematoxylon campechianum Linn., Leguminosae) used as a stain in microscopy and in the manufacture of ink.	2.41	1	0	organic heterotetracyclic compound; oxacycle; polyphenol; tertiary alcohol	histological dye; plant metabolite
dihydrotestosterone Dihydrotestosterone: A potent androgenic metabolite of TESTOSTERONE. It is produced by the action of the enzyme 3-OXO-5-ALPHA-STEROID 4-DEHYDROGENASE.. 17beta-hydroxyandrostan-3-one : A 17beta-hydroxy steroid that is testosterone in which the 4-5 double bond has been reduced to a single bond with unspecified configuration at position 5.. 17beta-hydroxy-5alpha-androstan-3-one : A 17beta-hydroxy steroid that is testosterone in which the 4,5 double bond has been reduced to a single bond with alpha-configuration at position 5.	2.01	1	0	17beta-hydroxy steroid; 17beta-hydroxyandrostan-3-one; 3-oxo-5alpha-steroid	androgen; Daphnia magna metabolite; human metabolite; mouse metabolite
tropolone Tropolone: A seven-membered aromatic ring compound. It is structurally related to a number of naturally occurring antifungal compounds (ANTIFUNGAL AGENTS).. tropolone : A cyclic ketone that is cyclohepta-2,4,6-trien-1-one substituted by a hydroxy group at position 2. It is a toxin produced by the agricultural pathogen Burkholderia plantarii.	1.96	1	0	alpha-hydroxy ketone; cyclic ketone; enol	bacterial metabolite; fungicide; toxin
methoxyhydroxyphenylglycol Methoxyhydroxyphenylglycol: Synthesized from endogenous epinephrine and norepinephrine in vivo. It is found in brain, blood, CSF, and urine, where its concentrations are used to measure catecholamine turnover.	20.43	910	58	methoxybenzenes; phenols
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.	2.15	1	0	amphetamines; secondary amine	central nervous system stimulant; environmental contaminant; neurotoxin; psychotropic drug; xenobiotic
malondialdehyde Malondialdehyde: The dialdehyde of malonic acid.. malonaldehyde : A dialdehyde that is propane substituted by two oxo groups at the terminal carbon atoms respectively. A biomarker of oxidative damage to lipids caused by smoking, it exists in vivo mainly in the enol form.	1.99	1	0	dialdehyde	biomarker
eosine yellowish-(ys) Eosine Yellowish-(YS): A versatile red dye used in cosmetics, pharmaceuticals, textiles, etc., and as tissue stain, vital stain, and counterstain with HEMATOXYLIN. It is also used in special culture media.. eosin YS dye : An organic sodium salt that is 2',4',5',7'-tetrabromofluorescein in which the carboxy group and the phenolic hydroxy group have been deprotonated and the resulting charge is neutralised by two sodium ions.	2.41	1	0	organic sodium salt; organobromine compound	fluorochrome; histological dye
acetylcysteine N-acetyl-L-cysteine : An N-acetyl-L-amino acid that is the N-acetylated derivative of the natural amino acid L-cysteine.	2.07	1	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
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.	2.11	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
pristane pristane: structure. pristane : A norterpene that is an acyclic saturated hydrocarbon derived from phytane by loss of its C-16 terminal methyl group.	2.15	1	0	long-chain alkane; norterpene	biomarker; immunological adjuvant
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.	2.97	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.	2.42	2	0	aromatic amine; guanidines; organochlorine compound; pyrazines	diuretic; sodium channel blocker
azetidyl-2-carboxylic acid azetidyl-2-carboxylic acid: a proline analog (with 4-membered ring in place of 5); a toxic non-protein amino acid that is misincorporated into protein in place of proline; induces nonfunctional heat-shock proteins; inhibits acquired thermotolerance; RN given refers to (L)-isomer; found in beets and Liliaceae. (S)-azetidine-2-carboxylic acid : The (S)-enantiomer of azetidine-2-carboxylic acid.. azetidinecarboxylic acid : A member of the class of azetidines that is azetidine substituted by at least one carboxy group at unspecified position.	2.02	1	0	azetidine-2-carboxylic acid
3-methoxy-4-hydroxyphenylethanol 3-Methoxy-4-hydroxyphenylethanol: Metabolite of serotonin and norepinephrine.	2.36	2	0	methoxybenzenes; phenols
2,3-diketogulonic acid 2,3-Diketogulonic Acid: Metabolite of ASCORBIC ACID and the oxidized form of the lactone DEHYDROASCORBIC ACID.. 2,3-diketogulonic acid : A carbohydrate acid formally derived from gulonic acid by oxidation of the -OH groups at positions 2 and 3 to keto groups.	2.02	1	0
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.	3.57	3	0	2-phenylcyclopropan-1-amine
metanephrine Metanephrine: Product of epinephrine O-methylation. It is a commonly occurring, pharmacologically and physiologically inactive metabolite of epinephrine.	4.18	5	0	catecholamine
u 0521 U 0521: catechol methyltransferase antagonist; structure	2.66	3	0	acetophenones
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.	6.01	42	0	amino dicarboxylic acid; D-alpha-amino acid; D-aspartic acid derivative; secondary amino compound	neurotransmitter agent
trimethaphan Trimethaphan: A nicotinic antagonist that has been used as a ganglionic blocker in hypertension, as an adjunct to anesthesia, and to induce hypotension during surgery.. trimethaphan : A complex heterocyclic sulfonium compound with an imidazolium core, used to treat hypertension.	5.22	4	1	sulfonium compound	anaesthesia adjuvant; antihypertensive agent; nicotinic antagonist; vasodilator agent
cadmium Cadmium: An element with atomic symbol Cd, atomic number 48, and atomic weight 112.41. It is a metal and ingestion will lead to CADMIUM POISONING.. elemental cadmium : An element in the zinc group of the periodic table with atomic number 48, atomic mass 112, M.P. 321degreeC, and B.P. 765degreeC). An odourless, tasteless, and highly poisonous soft, ductile, lustrous metal with electropositive properties. It has eight stable isotopes: (106)Cd, (108)Cd,(110)Cd, (111)Cd, (112)Cd, (113)Cd, (114)Cd and (116)Cd, with (112)Cd and (114)Cd being the most common.	2.42	2	0	cadmium molecular entity; zinc group element atom
deuterium Deuterium: The stable isotope of hydrogen. It has one neutron and one proton in the nucleus.	2.65	3	0	dihydrogen
deuterium oxide Deuterium Oxide: The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes.	2.06	1	0	deuterated compound; water	NMR solvent
barium chloride barium chloride: RN given refers to parent cpd. barium chloride : The inorganic dichloride salt of barium.	2.4	2	0	barium salt; inorganic chloride	potassium channel blocker
ammonium chloride Ammonium Chloride: An acidifying agent that has expectorant and diuretic effects. Also used in etching and batteries and as a flux in electroplating.. ammonium chloride : An inorganic chloride having ammonium as the counterion.	2.1	1	0	ammonium salt; inorganic chloride	ferroptosis inhibitor
tiletamine hydrochloride Cyclohexanones: Cyclohexane ring substituted by one or more ketones in any position.. cyclohexanones : Any alicyclic ketone based on a cyclohexane skeleton and its substituted derivatives thereof.	2.07	1	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.	6.23	7	2	selegiline; terminal acetylenic compound	geroprotector
isosorbide-5-mononitrate isosorbide-5-mononitrate: for prevention of angina pectoris; structure given in first source; a Russian drug	1.98	1	0	glucitol derivative; nitrate ester	nitric oxide donor; vasodilator agent
tetradecanoylphorbol acetate Tetradecanoylphorbol Acetate: A phorbol ester found in CROTON OIL with very effective tumor promoting activity. It stimulates the synthesis of both DNA and RNA.. phorbol ester : Esters of phorbol, originally found in croton oil (from Croton tiglium, of the family Euphorbiaceae). A number of phorbol esters possess activity as tumour promoters and activate the mechanisms associated with cell growth. Some of these are used in experiments as activators of protein kinase C.. phorbol 13-acetate 12-myristate : A phorbol ester that is phorbol in which the hydroxy groups at the cyclopropane ring juction (position 13) and the adjacent carbon (position 12) have been converted into the corresponding acetate and myristate esters. It is a major active constituent of the seed oil of Croton tiglium. It has been used as a tumour promoting agent for skin carcinogenesis in rodents and is associated with increased cell proliferation of malignant cells. However its function is controversial since a decrease in cell proliferation has also been observed in several cancer cell types.	2.96	4	0	acetate ester; diester; phorbol ester; tertiary alpha-hydroxy ketone; tetradecanoate ester	antineoplastic agent; apoptosis inducer; carcinogenic agent; mitogen; plant metabolite; protein kinase C agonist; reactive oxygen species generator
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.	2.52	2	0	benzenes; phenyl acetates
8-bromo cyclic adenosine monophosphate 8-Bromo Cyclic Adenosine Monophosphate: A long-acting derivative of cyclic AMP. It is an activator of cyclic AMP-dependent protein kinase, but resistant to degradation by cyclic AMP phosphodiesterase.. 8-Br-cAMP : A 3',5'-cyclic purine nucleotide that is 3',5'-cyclic AMP bearing an additional bromo substituent at position 8 on the adenine ring. An activator of cyclic AMP-dependent protein kinase, but resistant to degradation by cyclic AMP phosphodiesterase.	2.01	1	0	3',5'-cyclic purine nucleotide; adenyl ribonucleotide; organobromine compound	antidepressant; protein kinase agonist
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.	7.31	55	0	glutamic acid; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid	Escherichia coli metabolite; ferroptosis inducer; micronutrient; mouse metabolite; neurotransmitter; nutraceutical
adenylyl imidodiphosphate Adenylyl Imidodiphosphate: 5'-Adenylic acid, monoanhydride with imidodiphosphoric acid. An analog of ATP, in which the oxygen atom bridging the beta to the gamma phosphate is replaced by a nitrogen atom. It is a potent competitive inhibitor of soluble and membrane-bound mitochondrial ATPase and also inhibits ATP-dependent reactions of oxidative phosphorylation.	1.97	1	0	adenosine 5'-phosphate
bis(4-methyl-1-homopiperazinylthiocarbonyl)disulfide Bis(4-Methyl-1-Homopiperazinylthiocarbonyl)disulfide: An inhibitor of the last step of noradrenaline biosynthesis.	2.88	4	0
tramadol Tramadol: A narcotic analgesic proposed for severe pain. It may be habituating.. tramadol : A racemate consisting of equal amounts of (R,R)- and (S,S)-tramadol. A centrally acting synthetic opioid analgesic, used (as the hydrochloride salt) to treat moderately severe pain. The (R,R)-enantiomer exhibits ten-fold higher analgesic potency than the (S,S)-enantiomer. Originally developed by Gruenenthal GmbH and launched in 1977, it was subsequently isolated from the root bark of the South African tree Nauclea latifolia.. (R,R)-tramadol : A 2-[(dimethylamino)methyl]-1-(3-methoxyphenyl)cyclohexanol in which both stereocentres have R-configuration; the (R,R)-enantiomer of the racemic opioid analgesic tramadol, it exhibits ten-fold higher analgesic potency than the (S,S)-enantiomer.	3.38	1	1	2-[(dimethylamino)methyl]-1-(3-methoxyphenyl)cyclohexanol	adrenergic uptake inhibitor; antitussive; capsaicin receptor antagonist; delta-opioid receptor agonist; kappa-opioid receptor agonist; metabolite; mu-opioid receptor agonist; muscarinic antagonist; nicotinic antagonist; NMDA receptor antagonist; opioid analgesic; serotonergic antagonist; serotonin uptake 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.	3.36	1	1	oxazolidinone; primary alcohol; toluenes
substance p [no description available]	2.41	2	0	peptide	neurokinin-1 receptor agonist; neurotransmitter; vasodilator agent
tertatolol tertatolol: RN given refers to parent cpd; structure given in first source	1.96	1	0	thiochromane
2,2',3',4,4',5-hexachlorobiphenyl [no description available]	2.06	1	0	polychlorobiphenyl
pcb 180 PCB 180: C12-H3-Cl7	2.06	1	0	polychlorobiphenyl
2,5,2',5'-tetrachlorobiphenyl 2,2',5,5'-tetrachlorobiphenyl : A tetrachlorobiphenyl that is biphenyl in which the hydrogens at the 2 and 5 position of each benzene ring are replaced by chlorines.	2.06	1	0	dichlorobenzene; tetrachlorobiphenyl
etidocaine Etidocaine: A local anesthetic with rapid onset and long action, similar to BUPIVACAINE.. etidocaine : An amino acid amide in which 2-[ethyl(propyl)amino]butanoic acid and 2,6-dimethylaniline have combined to form the amide bond. Used as a local anaesthetic (amide caine), it has rapid onset and long action properties, similar to bupivacaine, and is given by injection during surgical procedures and during labour and delivery.	1.96	1	0	amino acid amide	local anaesthetic
phorbol 12,13-dibutyrate Phorbol 12,13-Dibutyrate: A phorbol ester found in CROTON OIL which, in addition to being a potent skin tumor promoter, is also an effective activator of calcium-activated, phospholipid-dependent protein kinase (protein kinase C). Due to its activation of this enzyme, phorbol 12,13-dibutyrate profoundly affects many different biological systems.	2.69	3	0	butyrate ester; phorbol ester; tertiary alpha-hydroxy ketone
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.	2.39	2	0	L-tyrosine derivative; non-proteinogenic L-alpha-amino acid	alpha-adrenergic agonist; antihypertensive agent; hapten; peripheral nervous system drug; sympatholytic agent
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.	1.96	1	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
ng-nitroarginine methyl ester NG-Nitroarginine Methyl Ester: A non-selective inhibitor of nitric oxide synthase. It has been used experimentally to induce hypertension.	2.39	2	0	alpha-amino acid ester; L-arginine derivative; methyl ester; N-nitro compound	EC 1.14.13.39 (nitric oxide synthase) inhibitor
quisqualic acid Quisqualic Acid: An agonist at two subsets of excitatory amino acid receptors, ionotropic receptors that directly control membrane channels and metabotropic receptors that indirectly mediate calcium mobilization from intracellular stores. The compound is obtained from the seeds and fruit of Quisqualis chinensis.	2.92	4	0	non-proteinogenic alpha-amino acid
dihydroalprenolol Dihydroalprenolol: Hydrogenated alprenolol derivative where the extra hydrogens are often tritiated. This radiolabeled form of ALPRENOLOL, a beta-adrenergic blocker, is used to label the beta-adrenergic receptor for isolation and study.	1.97	1	0
progabide progabide: GABA agonist; structure	1.96	1	0	diarylmethane
indalpine indalpine: selective 5-hydroxytryptamine uptake inhibitor; RN given refers to parent cpd	2.66	3	0	indoles
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.	2.96	4	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
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.	3.07	5	0	benzodioxine; imidazolines	alpha-adrenergic antagonist
fengabine [no description available]	1.97	1	0
quinpirole Quinpirole: A dopamine D2/D3 receptor agonist.. quinpirole : A pyrazoloquinoline that is (4aR,8aR)-4,4a,5,6,7,8,8a,9-octahydro-1H-pyrazolo[3,4-g]quinoline substituted by a propyl group at position 5. It acts as a dopamine agonist.	2.45	2	0	pyrazoloquinoline	dopamine agonist
atomoxetine hydrochloride Atomoxetine Hydrochloride: A propylamine derivative and selective ADRENERGIC UPTAKE INHIBITOR that is used in the treatment of ATTENTION DEFICIT HYPERACTIVITY DISORDER.. atomoxetine hydrochloride : The hydrochloride salt of atomoxetine.	5.32	4	3	hydrochloride	adrenergic uptake inhibitor; antidepressant
detomidine detomidine: structure given in first source	3.36	1	1
ipsapirone [no description available]	3.37	1	1	N-arylpiperazine
fura-2 Fura-2: A fluorescent calcium chelating agent which is used to study intracellular calcium in tissues.	3.13	5	0
eticlopride eticlopride: blocks dopamine-D2 binding sites; structure given in first source; RN given refers to (S)-isomer	2.06	1	0	salicylamides
befloxatone befloxatone: selectively inhibits monoamine oxidase A; structure in first source; RN given refers to (R)-isomer	4.63	3	2
duloxetine hydrochloride Duloxetine Hydrochloride: A thiophene derivative and selective NEUROTRANSMITTER UPTAKE INHIBITOR for SEROTONIN and NORADRENALINE (SNRI). It is an ANTIDEPRESSIVE AGENT and ANXIOLYTIC, and is also used for the treatment of pain in patients with DIABETES MELLITUS and FIBROMYALGIA.. (S)-duloxetine hydrochloride : A duloxetine hydrochloride in which the duloxetine moiety has S configuration.	6.21	4	3	duloxetine hydrochloride	antidepressant
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.	3.38	1	1	oxazolidinone; tryptamines	anti-inflammatory drug; serotonergic agonist; vasoconstrictor agent
adenosine quinquefolan B: isolated from roots of Panax quinquefolium L.; RN not in Chemline 10/87; RN from Toxlit	3.62	9	0	adenosines; purines D-ribonucleoside	analgesic; anti-arrhythmia drug; fundamental metabolite; human metabolite; vasodilator agent
amyl nitrate [no description available]	1.98	1	0
vanadates Vanadates: Oxyvanadium ions in various states of oxidation. They act primarily as ion transport inhibitors due to their inhibition of Na(+)-, K(+)-, and Ca(+)-ATPase transport systems. They also have insulin-like action, positive inotropic action on cardiac ventricular muscle, and other metabolic effects.. vanadate(3-) : A vanadium oxoanion that is a trianion with formula VO4 in which the vanadium is in the +5 oxidation state and is attached to four oxygen atoms.	2.02	1	0	trivalent inorganic anion; vanadium oxoanion	EC 3.1.3.1 (alkaline phosphatase) inhibitor; EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor; EC 3.1.3.41 (4-nitrophenylphosphatase) inhibitor; EC 3.1.3.48 (protein-tyrosine-phosphatase) 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.	2.05	1	0	D-glucopyranose	epitope; mouse metabolite
imirestat imirestat: structure given in first source	2	1	0
metapramine metapramine: structure	3.35	1	1	dibenzooxazepine
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.	3.85	2	1	1,2,3-triazole
silver [no description available]	2.15	1	0
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.	4.33	2	2	imidazoles
fluorodeoxyglucose f18 Fluorodeoxyglucose F18: The compound is given by intravenous injection to do POSITRON-EMISSION TOMOGRAPHY for the assessment of cerebral and myocardial glucose metabolism in various physiological or pathological states including stroke and myocardial ischemia. It is also employed for the detection of malignant tumors including those of the brain, liver, and thyroid gland. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1162)	2.07	1	0	2-deoxy-2-((18)F)fluoro-D-glucose; 2-deoxy-2-fluoro-aldehydo-D-glucose
atipamezole [no description available]	3.36	1	1
amezinium amezinium: RN &N1 for parent cpd from 9th CI Form Index; structure in Negwer, 5th ed, #6252. amezinium : A pyridazinium ion that is pyridazin-1-ium which is substituted by a phenyl, amino and methoxy groups at positions 1, 4 and 6, respectively.	1.97	1	0	aromatic ether; primary arylamine; pyridazinium ion	adrenergic uptake inhibitor; antihypotensive agent; EC 1.4.3.4 (monoamine oxidase) inhibitor; sympathomimetic agent
4-o-methyl-12-o-tetradecanoylphorbol 13-acetate [no description available]	2.05	1	0
tetrandrine tetrandrine: a bisbenzylisoquinoline that exhibits antifibrogenic activity	1.99	1	0	bisbenzylisoquinoline alkaloid; isoquinolines
oxazolidin-2-one Oxazolidinones: Derivatives of oxazolidin-2-one. They represent an important class of synthetic antibiotic agents.. oxazolidin-2-one : An oxazolidinone that is 1,3-oxazolidine with an oxo substituent at position 2.. oxazolidinone : An oxazolidine containing one or more oxo groups.	4.33	2	2	carbamate ester; oxazolidinone	metabolite
pentafluorobenzyl bromide pentafluorobenzyl bromide : A member of the class benzyl bromides that is benzyl bromide in which the hydrogens at positions 2, 3, 4, 5 and 6 of the phenyl ring are replaced by fluoro groups. It is a versatile derivatization agent in chromatography and mass spectrometry.	2.06	1	0	benzyl bromides; fluorobenzenes
2-(2-aminoethyl)pyridine 2-(2-aminoethyl)pyridine: histamine H1 receptor agonist inducing cross-tolerance to histamine; RN given refers to parent cpd; structure	1.97	1	0	aminoalkylpyridine; primary amine	histamine agonist; metabolite
3,4-dihydroxyphenylethanol 3,4-dihydroxyphenylethanol: serotonin metabolite; structure	4.18	16	0	catechols; primary alcohol	antineoplastic agent; antioxidant; metabolite
biocytin biocytin : A monocarboxylic acid amide that results from the formal condensation of the carboxylic acid group of biotin with the N(6)-amino group of L-lysine.	2.07	1	0	azabicycloalkane; L-alpha-amino acid zwitterion; L-lysine derivative; monocarboxylic acid amide; non-proteinogenic L-alpha-amino acid; thiabicycloalkane; ureas	mouse metabolite
3,4-dihydroxymandelic acid 3,4-dihydroxymandelic acid: metabolite of L-dopa; RN given refers to parent cpd without isomeric designation. 3,4-dihydroxymandelic acid : A catechol that is the 3,4-dihydroxy derivative of mandelic acid; a metabolite of L-dopa.	11.65	30	2	2-hydroxy monocarboxylic acid; catechols	antioxidant; drug metabolite; human metabolite; mouse metabolite
2-(2-aminoethyl)thiazole 2-(2-aminoethyl)thiazole: receptor H1 agonist; RN given refers to parent cpd	1.97	1	0	1,3-thiazoles
kampirone 1-(2-pyrimidinyl)piperazine: metabolite of buspirone; structure given in first source	3.37	1	1	N-arylpiperazine
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.	2.88	4	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
fibrinogen Fibrinogen: Plasma glycoprotein clotted by thrombin, composed of a dimer of three non-identical pairs of polypeptide chains (alpha, beta, gamma) held together by disulfide bonds. Fibrinogen clotting is a sol-gel change involving complex molecular arrangements: whereas fibrinogen is cleaved by thrombin to form polypeptides A and B, the proteolytic action of other enzymes yields different fibrinogen degradation products.. D-iditol : The D-enantiomer of iditol.	2.06	1	0	iditol	fungal metabolite
alpha,beta-methyleneadenosine 5'-triphosphate alpha,beta-methyleneadenosine 5'-triphosphate: do not confuse with beta,gamma-methylene ATP; RN given refers to parent cpd	2.37	2	0	nucleoside triphosphate analogue
3,4-dihydroxybenzylamine 3,4-dihydroxybenzylamine: RN given refers to parent cpd; structure	1.96	1	0	catechols
droxidopa Droxidopa: A synthetic precursor of norepinephrine that is used in the treatment of PARKINSONIAN DISORDERS and ORTHOSTATIC HYPOTENSION.. droxidopa : A serine derivative that is L-serine substituted at the beta-position by a 3,4-dihydroxyphenyl group. A prodrug for noradrenalone, it is used for treatment of neurogenic orthostatic hypotension	6.59	4	3	catechols; L-tyrosine derivative	antihypertensive agent; prodrug; vasoconstrictor agent
cobalt Cobalt: A trace element that is a component of vitamin B12. It has the atomic symbol Co, atomic number 27, and atomic weight 58.93. It is used in nuclear weapons, alloys, and pigments. Deficiency in animals leads to anemia; its excess in humans can lead to erythrocytosis.. cobalt(1+) : A monovalent inorganic cation obtained from cobalt.. cobalt atom : A cobalt group element atom that has atomic number 27.	1.96	1	0	cobalt group element atom; metal allergen	micronutrient
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.	2.73	3	0	17beta-hydroxy steroid; 3-hydroxy steroid; organofluorine compound; sulfoxide	antineoplastic agent; estrogen antagonist; estrogen receptor antagonist
1,2-bis(2-aminophenoxy)ethane-n,n,n',n'-tetraacetic acid 1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid: structure in first source	3.13	5	0	polyamino carboxylic acid; tetracarboxylic acid	chelator
1-amino-1,3-dicarboxycyclopentane 1-amino-1,3-dicarboxycyclopentane: RN given refers to (cis)-isomer	4.36	20	0
desethylamiodarone desethylamiodarone: metabolite of amiodarone; structure given in first source	2	1	0	aromatic ketone
u 73122 1-(6-((3-methoxyestra-1,3,5(10)-trien-17-yl)amino)hexyl)-1H-pyrrole-2,5-dione: structure given in first source. U-73122 : An aza-steroid that is 3-O-methyl-17beta-estradiol in which the 17beta-hydroxy group is replaced by a 6-(maleimid-1-yl)hexylamino group. An inibitor of phospholipase C.	2.98	4	0	aromatic ether; aza-steroid; maleimides	EC 3.1.4.11 (phosphoinositide phospholipase C) inhibitor
sr141716 [no description available]	2.96	4	0	amidopiperidine; carbohydrazide; dichlorobenzene; monochlorobenzenes; pyrazoles	anti-obesity agent; appetite depressant; CB1 receptor antagonist
bosentan anhydrous Bosentan: A sulfonamide and pyrimidine derivative that acts as a dual endothelin receptor antagonist used to manage PULMONARY HYPERTENSION and SYSTEMIC SCLEROSIS.	2.04	1	0	primary alcohol; pyrimidines; sulfonamide	antihypertensive agent; endothelin receptor antagonist
bicuculline methiodide [no description available]	2.08	1	0
3,4-methylenedioxyethamphetamine 3,4-methylenedioxyethamphetamine: legal replacement for MDMA; RN given for (+-)-isomer; structure given in first source. 1-(1,3-benzodioxol-5-yl)-N-ethylpropan-2-amine : A secondary amino compound that is N-ethylisopropylamine in which a hydrogen of one of the isopropyl methyl groups has been replaced by a 3,4-methylenedioxyphenyl group.	1.97	1	0	benzodioxoles; secondary amino compound
methoctramine methoctramine: structure given in first source. methoctramine : A tetramine that is N,N'-bis(6-aminohexyl)octane-1,8-diamine where the primary amino groups both carry 2-methoxybenzyl substituents.. methoctramine tetrahydrochloride : A hydrochloride obtained by combining methoctramine with four molar equivalents of hydrochloric acid.	2.02	1	0	hydrochloride	muscarinic antagonist
1,1-dimethylheptyl-11-hydroxytetrahydrocannabinol HU 211: structure given in first source; HU 211 is active & HU 210 is inactive as canibinoids; functional N-methyl-D-aspartate receptor blocker; RN given is for (6aS-trans)-isomer	2.75	3	0
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	2.38	2	0	alpha-amino acid ester; dicarboxylic acid monoester; ethyl ester; organic heterobicyclic compound	antihypertensive agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
sr 95531 [no description available]	3.15	5	0	methoxybenzenes
3,5-dihydroxyphenylglycine 3,5-dihydroxyphenylglycine: a potent agonst of metabotropic glutamate receptors	3.55	8	0	alpha-amino acid
deoxyglucose Deoxyglucose: 2-Deoxy-D-arabino-hexose. An antimetabolite of glucose with antiviral activity.. deoxyglucose : A deoxyhexose comprising glucose having at least one hydroxy group replaced by hydrogen.	5.71	11	2
u 73343 U 73343: an inactive analog of U 73122	2.02	1	0
2-(2,3-dicarboxycyclopropyl)glycine [no description available]	3.89	12	0
3,4-dihydroxyphenylacetaldehyde 3,4-dihydroxyphenylacetaldehyde : A phenylacetaldehyde in which the 3 and 4 positions of the phenyl group are substituted by hydroxy groups.	2.11	1	0	alpha-CH2-containing aldehyde; catechols; phenylacetaldehydes	Escherichia coli metabolite; human metabolite; mouse metabolite
2-(n,n-dipropyl)amino-5,6-dihydroxytetralin 2-(N,N-dipropyl)amino-5,6-dihydroxytetralin: RN given refers to parent cpd without isomeric designation	1.96	1	0
5-fluorodopamine [no description available]	7.87	6	3
inositol 1,4,5-trisphosphate 1-(2-nitrophenyl)ethyl ester inositol 1,4,5-trisphosphate 1-(2-nitrophenyl)ethyl ester: RN given refers to the 1,4-bis(dihydrogen phosphate)-5-isomer	2.05	1	0
zd 7288 ICI D2788: a sinoatrial node modulator; may be of use in treatment of ischaemic heart disease by increasing heart rate without impairing cardiac function	3.01	4	0
azetidine-2,4-dicarboxylic acid azetidine-2,4-dicarboxylic acid: activates neuronal metabotropic receptors; RN given refers to (trans-isomer); RN for cpd without isomeric designation not avail 10/93	2.02	1	0
glycerophosphoinositol 4,5-bisphosphate glycerophosphoinositol 4,5-bisphosphate: do not confuse with phosphatidylinositols which have fatty acids esterified at the C-1 and C-2 hydroxyl groups of glycerol	2.03	1	0
gyki 53655 GYKI 53655: an AMPA (alpha-amino-3-hydroxy-5-methylisoxazole-4-propionate) receptor antagonist	2.02	1	0
4-(2-amino-6-chloro-9h-purin-9-yl)-1,3-dioxolane-2-methanol 4-(2-amino-6-chloro-9H-purin-9-yl)-1,3-dioxolane-2-methanol: RN given for (2R-trans)-isomer; structure in first source	3.29	6	0
1-((3-hydroxy-4-methoxy)-1-naphthoxy)-2,3-propanediol 1-((3-hydroxy-4-methoxy)-1-naphthoxy)-2,3-propanediol: structure given in first source	1.99	1	0
s 9977 S 9977: may alleviate migranes; RN given refers to hydrochloride; structure given in first source	1.98	1	0
omega-n-methylarginine omega-N-Methylarginine: A competitive inhibitor of nitric oxide synthetase.. N(omega)-methyl-L-arginine : A L-arginine derivative with a N(omega)-methyl substituent.	1.99	1	0	amino acid zwitterion; arginine derivative; guanidines; L-arginine derivative; non-proteinogenic L-alpha-amino acid
proline Proline: A non-essential amino acid that is synthesized from GLUTAMIC ACID. It is an essential component of COLLAGEN and is important for proper functioning of joints and tendons.. proline : An alpha-amino acid that is pyrrolidine bearing a carboxy substituent at position 2.	2.42	2	0	amino acid zwitterion; glutamine family amino acid; L-alpha-amino acid; proline; proteinogenic amino acid	algal metabolite; compatible osmolytes; Escherichia coli metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite
peptide elongation factor 2 Peptide Elongation Factor 2: Peptide Elongation Factor 2 catalyzes the translocation of peptidyl-tRNA from the A site to the P site of eukaryotic ribosomes by a process linked to the hydrolysis of GTP to GDP.	2.25	1	0
hydroxyl radical Hydroxyl Radical: The univalent radical OH. Hydroxyl radical is a potent oxidizing agent.	2.42	2	0	oxygen hydride; oxygen radical; reactive oxygen species
atrasentan Atrasentan: A pyrrolidine and benzodioxole derivative that acts a RECEPTOR, ENDOTHELIN A antagonist. It has therapeutic potential as an antineoplastic agent and for the treatment of DIABETIC NEPHROPATHIES.	2.04	1	0	pyrrolidines
l 659066 vatinoxan: structure given in first source	1.97	1	0
biotin vitamin B7 : Any member of a group of vitamers that belong to the chemical structural class called biotins that exhibit biological activity against vitamin B7 deficiency. Vitamin B7 deficiency is very rare in individuals who take a normal balanced diet. Foods rich in biotin are egg yolk, liver, cereals, vegetables (spinach, mushrooms) and rice. Symptoms associated with vitamin B7 deficiency include thinning hair, scaly skin rashes around eyes, nose and mouth, and brittle nails. The vitamers include biotin and its ionized and salt forms.	2.08	1	0	biotins; vitamin B7	coenzyme; cofactor; Escherichia coli metabolite; fundamental metabolite; human metabolite; mouse metabolite; nutraceutical; prosthetic group; Saccharomyces cerevisiae metabolite
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).	2.89	4	0	amino acid zwitterion; angiotensin II	human metabolite
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.	4.62	6	1
sb 203580 [no description available]	2.01	1	0	imidazoles; monofluorobenzenes; pyridines; sulfoxide	EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor; EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor; geroprotector; Hsp90 inhibitor; neuroprotective agent
gacyclidine gacyclidine: non-competitive NMDA antagonist	2.02	1	0
cgp 54626 CGP 54626: RN given for (S-(R,R))-isomer	2.06	1	0
eglumetad eglumetad: LY-354740 is the active isomer, LY-366563 is the inactive isomer, and LY 314582 is the racemate; structure given in first source	2.44	2	0	L-alpha-amino acid
anisomycin Anisomycin: An antibiotic isolated from various Streptomyces species. It interferes with protein and DNA synthesis by inhibiting peptidyl transferase or the 80S ribosome system.. (-)-anisomycin : An antibiotic isolated from various Streptomyces species. It interferes with protein and DNA synthesis by inhibiting peptidyl transferase or the 80S ribosome system.	3.54	8	0	monohydroxypyrrolidine; organonitrogen heterocyclic antibiotic	anticoronaviral agent; antimicrobial agent; antineoplastic agent; antiparasitic agent; bacterial metabolite; DNA synthesis inhibitor; protein synthesis inhibitor
wortmannin [no description available]	2.03	1	0	acetate ester; cyclic ketone; delta-lactone; organic heteropentacyclic compound	anticoronaviral agent; antineoplastic agent; autophagy inhibitor; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor; geroprotector; Penicillium metabolite; radiosensitizing agent
bortezomib [no description available]	2.07	1	0	amino acid amide; L-phenylalanine derivative; pyrazines	antineoplastic agent; antiprotozoal drug; protease inhibitor; proteasome inhibitor
leupeptins Leupeptins: A group of acylated oligopeptides produced by Actinomycetes that function as protease inhibitors. They have been known to inhibit to varying degrees trypsin, plasmin, KALLIKREINS, papain and the cathepsins.	2.45	2	0
lithium chloride Lithium Chloride: A salt of lithium that has been used experimentally as an immunomodulator.. lithium chloride : A metal chloride salt with a Li(+) counterion.	7.91	4	0	inorganic chloride; lithium salt	antimanic drug; geroprotector
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.	2.02	1	0	heterodetic cyclic peptide; peptide hormone	oxytocic; vasodilator agent
theanine theanine: RN given refers to (L)-isomer; precursor of ethylamine; found in green tea. N(5)-ethyl-L-glutamine : A N(5)-alkylglutamine where the alkyl group is ethyl. It has been isolated from green tea.	2.02	1	0	amino acid zwitterion; N(5)-alkyl-L-glutamine	geroprotector; neuroprotective agent; plant metabolite
3,4-dihydroxyphenyllactic acid 3,4-dihydroxyphenyllactic acid: from S. miltiorhiza Bge; dilates coronary artery; RN given refers to parent cpd without isomeric designation	1.98	1	0	2-hydroxy monocarboxylic acid; catechols
inositol 1,4,5-trisphosphate Inositol 1,4,5-Trisphosphate: Intracellular messenger formed by the action of phospholipase C on phosphatidylinositol 4,5-bisphosphate, which is one of the phospholipids that make up the cell membrane. Inositol 1,4,5-trisphosphate is released into the cytoplasm where it releases calcium ions from internal stores within the cell's endoplasmic reticulum. These calcium ions stimulate the activity of B kinase or calmodulin.	3.64	9	0	myo-inositol trisphosphate	mouse metabolite
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.	3.07	5	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
nitroarginine Nitroarginine: An inhibitor of nitric oxide synthetase which has been shown to prevent glutamate toxicity. Nitroarginine has been experimentally tested for its ability to prevent ammonia toxicity and ammonia-induced alterations in brain energy and ammonia metabolites. (Neurochem Res 1995:200(4):451-6). N(gamma)-nitro-L-arginine : An L-arginine derivative that is L-arginine in which the terminal nitrogen of the guanidyl group is replaced by a nitro group.	2.03	1	0	guanidines; L-arginine derivative; N-nitro compound; non-proteinogenic L-alpha-amino acid
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.	2.71	3	0	monoterpenoid indole alkaloid; organic heteroheptacyclic compound	avicide; cholinergic antagonist; glycine receptor antagonist; neurotransmitter agent; rodenticide
ryanodine Ryanodine: A methylpyrrole-carboxylate from RYANIA that disrupts the RYANODINE RECEPTOR CALCIUM RELEASE CHANNEL to modify CALCIUM release from SARCOPLASMIC RETICULUM resulting in alteration of MUSCLE CONTRACTION. It was previously used in INSECTICIDES. It is used experimentally in conjunction with THAPSIGARGIN and other inhibitors of CALCIUM ATPASE uptake of calcium into SARCOPLASMIC RETICULUM.. ryanodine : An insecticide alkaloid isolated from South American plant Ryania speciosa.	3.26	6	0
ecgonine ecgonine: RN given refers to (1R-(exo,exo))-isomer; structure. ecgonine : A tropane alkaloid that consists of tropane bearing carboxy and hydroxy substituents at positions 2 and 3 respectively and having (1R,2R,3S,5S)-configuration. It is both a metabolite of and a precursor to cocaine.	1.97	1	0	tropane alkaloid
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.	2.47	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
arachidonic acid icosa-5,8,11,14-tetraenoic acid : Any icosatetraenoic acid with the double bonds at positions 5, 8, 11 and 14.. arachidonate : A long-chain fatty acid anion resulting from the removal of a proton from the carboxy group of arachidonic acid.	2.93	4	0	icosa-5,8,11,14-tetraenoic acid; long-chain fatty acid; omega-6 fatty acid	Daphnia galeata metabolite; EC 3.1.1.1 (carboxylesterase) inhibitor; human metabolite; mouse 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.	2.79	3	0	macrolide lactam	bacterial metabolite; immunosuppressive agent
pectins Pectins: High molecular weight polysaccharides present in the cell walls of all plants. Pectins cement cell walls together. They are used as emulsifiers and stabilizers in the food industry. They have been tried for a variety of therapeutic uses including as antidiarrheals, where they are now generally considered ineffective, and in the treatment of hypercholesterolemia.. alpha-D-galacturonic acid : The alpha-anomer of D-galacturonic acid.	2.87	3	0	D-galactopyranuronic acid
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.	4.51	24	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
alpha-methyl-4-carboxyphenylglycine alpha-methyl-4-carboxyphenylglycine: glutamate receptor antagonist. (S)-alpha-methyl-4-carboxyphenylglycine : A non-proteinogenic alpha-amino acid that is alanine in which the alpha-hydrogen is replaced by a 4-carboxyphenyl group (the S-enantiomer). It is a non-selective group I/group II metabotropic glutamate receptor (mGluR) antagonist.	4.52	23	0	non-proteinogenic alpha-amino acid	metabotropic glutamate receptor antagonist
thapsigargin Thapsigargin: A sesquiterpene lactone found in roots of THAPSIA. It inhibits SARCOPLASMIC RETICULUM CALCIUM-TRANSPORTING ATPASES.. thapsigargin : An organic heterotricyclic compound that is a hexa-oxygenated 6,7-guaianolide isolated fron the roots of Thapsia garganica L., Apiaceae. A potent skin irritant, it is used in traditional medicine as a counter-irritant. Thapsigargin inhibits Ca(2+)-transporting ATPase mediated uptake of calcium ions into sarcoplasmic reticulum and is used in experimentation examining the impacts of increasing cytosolic calcium concentrations.	2.94	4	0	butyrate ester; organic heterotricyclic compound; sesquiterpene lactone	calcium channel blocker; EC 3.6.3.8 (Ca(2+)-transporting ATPase) inhibitor
benzoylecgonine benzoylecgonine: cocaine is benzoyl methyl ecgonine; RN given refers to (1R-(exo,exo))-isomer; structure. ecgonine benzoate : A benzoate ester metabolite of cocaine formed by hydrolysis of the methyl ester group, catalysed by carboxylesterases.	1.97	1	0	benzoate ester; tropane alkaloid	epitope; human xenobiotic metabolite; marine xenobiotic metabolite; plant metabolite
h 89 N-(2-(4-bromocinnamylamino)ethyl)-5-isoquinolinesulfonamide: structure given in first source. N-[2-(4-bromocinnamylamino)ethyl]isoquinoline-5-sulfonamide : A member of the class of isoquinolines that is the sulfonamide obtained by formal condensation of the sulfo group of isoquinoline-5-sulfonic acid with the primary amino group of N(1)-[3-(4-bromophenyl)prop-2-en-1-yl]ethane-1,2-diamine. It is a protein kinase A inhibitor.. (E)-N-[2-(4-bromocinnamylamino)ethyl]isoquinoline-5-sulfonamide : A N-[2-(4-bromocinnamylamino)ethyl]isoquinoline-5-sulfonamide in which the double bond adopts a trans-configuration.	2	1	0	N-[2-(4-bromocinnamylamino)ethyl]isoquinoline-5-sulfonamide
enkephalin, leucine Enkephalin, Leucine: One of the endogenous pentapeptides with morphine-like activity. It differs from MET-ENKEPHALIN in the LEUCINE at position 5. Its first four amino acid sequence is identical to the tetrapeptide sequence at the N-terminal of BETA-ENDORPHIN.. Leu-enkephalin : A pentapeptide comprising L-tyrosine, glycine, glycine, L-phenylalanine and L-leucine residues joined in sequence by peptide linkages. It is an endogenous opioid peptide produced in vertebrate species, including rodents, primates and humans that results from decomposition of proenkephalin or dynorphin and exhibits antinociceptive properties.	2.41	2	0	pentapeptide; peptide zwitterion	analgesic; delta-opioid receptor agonist; human metabolite; mu-opioid receptor agonist; neurotransmitter; rat metabolite
benzyloxycarbonylleucyl-leucyl-leucine aldehyde benzyloxycarbonylleucyl-leucyl-leucine aldehyde: proteasome inhibitor. N-benzyloxycarbonyl-L-leucyl-L-leucyl-L-leucinal : A tripeptide that is L-leucyl-L-leucyl-L-leucine in which the C-terminal carboxy group has been reduced to the corresponding aldehyde and the N-terminal amino group is protected as its benzyloxycarbonyl derivative.	2.45	2	0	amino aldehyde; carbamate ester; tripeptide	proteasome inhibitor
carbenoxolone sodium Carbenoxolone: An agent derived from licorice root. It is used for the treatment of digestive tract ulcers, especially in the stomach. Antidiuretic side effects are frequent, but otherwise the drug is low in toxicity.	2.49	2	0	triterpenoid
glycosides [no description available]	2.21	1	0
norcocaine norcocaine: N-demethylated cocaine; RN given refers to (1R-(exo,exo))-isomer	1.97	1	0	benzoate ester
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.	2.13	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.	3.78	2	1	vasopressin	cardiovascular drug; hematologic agent; mitogen
xe 991, anthracenone 10,10-bis(4-pyridinylmethyl)-9(10H)-anthracenone: neurotransmitter release enhancer and potassium channel blocker; structure given in first source	2.08	1	0	anthracenes
n(6)-cyclopentyladenosine [no description available]	2.43	2	0
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.	2.96	1	0	N-alkylpyrrolidine; pyridines; pyrrolidin-2-ones; pyrrolidine alkaloid	antidepressant; biomarker; human xenobiotic metabolite; plant metabolite
secinh3 SecinH3: a small molecule antagonist of cytohesins; structure in first source	2.31	1	0	triazoles
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.	2.93	4	0	capsaicinoid	non-narcotic analgesic; TRPV1 agonist; voltage-gated sodium channel blocker
thiourea Thiourea: A photographic fixative used also in the manufacture of resins. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), this substance may reasonably be anticipated to be a carcinogen (Merck Index, 9th ed). Many of its derivatives are ANTITHYROID AGENTS and/or FREE RADICAL SCAVENGERS.. thiourea : The simplest member of the thiourea class, consisting of urea with the oxygen atom substituted by sulfur.	2.03	1	0	one-carbon compound; thioureas; ureas	antioxidant; chromophore
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.	1.98	1	0	cardenolide glycoside; steroid saponin	anti-arrhythmia drug; cardiotonic drug; EC 3.6.3.9 (Na(+)/K(+)-transporting ATPase) inhibitor; epitope
capsazepine capsazepine: modified capsaicin molecule; a capsaicin receptor antagonist. capsazepine : A benzazepine that is 2,3,4,5-tetrahydro-1H-2-benzazepine which is substituted by hydroxy groups at positions 7 and 8 and on the nitrogen atom by a 2-(p-chlorophenyl)ethylaminothiocarbonyl group. A synthetic analogue of capsaicin, it was the first reported capsaicin receptor antagonist.	2.13	1	0	benzazepine; catechols; monochlorobenzenes; thioureas	capsaicin receptor antagonist
1,1-diphenyl-2-picrylhydrazyl 1,1-diphenyl-2-picrylhydrazyl: A diphenyl picrate; the ability to decolorize this stable radical indicates reactivity of tested compounds (Banda, Anal Chem 46:1772-7 1974)	2.13	1	0
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.	3.4	1	1	barbiturates	anticonvulsant; drug allergen; environmental contaminant; intravenous anaesthetic; sedative; xenobiotic
u 0126 U 0126: protein kinase kinase inhibitor; structure in first source	2.44	2	0	aryl sulfide; dinitrile; enamine; substituted aniline	antineoplastic agent; antioxidant; apoptosis inducer; EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor; osteogenesis regulator; vasoconstrictor agent
6-methyl-2-(phenylethynyl)pyridine 6-methyl-2-(phenylethynyl)pyridine: an mGlu5 antagonist. 2-methyl-6-(phenylethynyl)pyridine : A methylpyridine that coinsists of 2-methylp[yridine bearing an additional phenylethynyl group at position 6. Potent and highly selective non-competitive antagonist at the mGlu5 receptor subtype (IC50 = 36 nM) and a positive allosteric modulator at mGlu4 receptors. Centrally active following systemic administration in vivo. Reverses mechanical hyperalgesia in the inflamed rat hind paw.	4.99	37	0	acetylenic compound; methylpyridines	anxiolytic drug; metabotropic glutamate receptor antagonist
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.	2.9	4	0	alkali metal atom
raclopride Raclopride: A substituted benzamide that has antipsychotic properties. It is a dopamine D2 receptor (see RECEPTORS, DOPAMINE D2) antagonist.	2	1	0	salicylamides
1,2-bis(2-aminophenoxy)ethane n,n,n',n'-tetraacetic acid acetoxymethyl ester [no description available]	2.45	2	0
3-methoxy-4-hydroxyphenylglycol sulfate 3-methoxy-4-hydroxyphenylglycol sulfate: RN given refers to cpd with unspecified locant for sulfate moiety	3.06	1	0	alcohol; phenols
u-50488 3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-Isomer: A non-peptide, kappa-opioid receptor agonist which has also been found to stimulate the release of adrenocorticotropin (ADRENOCORTICOTROPIC HORMONE) via the release of hypothalamic arginine vasopressin (ARGININE VASOPRESSIN) and CORTICOTROPIN-RELEASING HORMONE. (From J Pharmacol Exp Ther 1997;280(1):416-21). U50488 : A monocarboxylic acid amide obtained by formal condensation between the carboxy group of 3,4-dichlorophenylacetic acid and the secondary amino group of (1R,2R)-N-methyl-2-(pyrrolidin-1-yl)cyclohexanamine	2.02	1	0	dichlorobenzene; monocarboxylic acid amide; N-alkylpyrrolidine	analgesic; antitussive; calcium channel blocker; diuretic; kappa-opioid receptor agonist
rasagiline [no description available]	3.44	1	1	indanes; secondary amine; terminal acetylenic compound	EC 1.4.3.4 (monoamine oxidase) inhibitor; neuroprotective agent
4-hydroxyphenethylene glycol [no description available]	2.37	2	0	phenols
2-(4-(2-carboxyethyl)phenethylamino)-5'-n-ethylcarboxamidoadenosine 2-(4-(2-carboxyethyl)phenethylamino)-5'-N-ethylcarboxamidoadenosine: A2 adenosine receptor agonist; structure given in first source. CGS-21680 : A derivative of adenosine in which the 5'-hydroxymethyl group is replaced by N-ethylcarboxamido and the hydrogen at position 2 on the adenine is replaced by a 4-(2-carboxyethyl)phenethylamino group.	2	1	0	adenosines; dicarboxylic acid monoamide; monocarboxylic acid	adenosine A2A receptor agonist; anti-inflammatory agent
phosphothreonine Phosphothreonine: The phosphoric acid ester of threonine. Used as an identifier in the analysis of peptides, proteins, and enzymes.. O-phospho-L-threonine : A L-threonine derivative phosphorylated at the side-chain hydroxy function.	2	1	0	L-threonine derivative; non-proteinogenic L-alpha-amino acid; O-phosphoamino acid	Escherichia coli metabolite
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	3.64	9	0	naphthalenes; sulfonic acid derivative
4-aminopyrrolidine-2,4-dicarboxylic acid 4-aminopyrrolidine-2,4-dicarboxylic acid: an antinociceptive agent and metabotropic glutamate receptor agonist; structure given in first source	2.42	2	0
2-chloro-5-hydroxyphenylglycine 2-chloro-5-hydroxyphenylglycine: activates mGlu(5) receptors; structure in first source	3.96	13	0
6-cyano-7-nitroquinoxaline-2,3-dione 6-Cyano-7-nitroquinoxaline-2,3-dione: A potent excitatory amino acid antagonist with a preference for non-NMDA iontropic receptors. It is used primarily as a research tool.	4.05	14	0	quinoxaline derivative
or486 OR486: structure given in first source	1.97	1	0
fg 9041 FG 9041: structure given in first source	2.76	3	0	quinoxaline derivative
am 281 AM 281: radioligand for cannabinoid CB1 receptors; structure in first source	2.02	1	0	pyrazoles; ring assembly
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.	2.38	2	0	2-nitrophenols; benzophenones; catechols	antiparkinson drug; EC 2.1.1.6 (catechol O-methyltransferase) inhibitor
sib 1757 SIB 1757: a selective mGluR5 antagonist; structure in first source	2	1	0
dinoprostone prostaglandin E2 : Prostaglandin F2alpha in which the hydroxy group at position 9 has been oxidised to the corresponding ketone. Prostaglandin E2 is the most common and most biologically potent of mammalian prostaglandins.	2.4	2	0	prostaglandins E	human metabolite; mouse metabolite; oxytocic
dinoprost Dinoprost: A naturally occurring prostaglandin that has oxytocic, luteolytic, and abortifacient activities. Due to its vasocontractile properties, the compound has a variety of other biological actions.. prostaglandin F2alpha : A prostaglandins Falpha that is prosta-5,13-dien-1-oic acid substituted by hydroxy groups at positions 9, 11 and 15. It is a naturally occurring prostaglandin used to induce labor.	3.76	3	0	monocarboxylic acid; prostaglandins Falpha	human metabolite; mouse metabolite
alprostadil [no description available]	1.96	1	0	prostaglandins E	anticoagulant; human metabolite; platelet aggregation inhibitor; vasodilator agent
genistein [no description available]	2.07	1	0	7-hydroxyisoflavones	antineoplastic agent; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; geroprotector; human urinary metabolite; phytoestrogen; plant metabolite; tyrosine kinase inhibitor
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.	2.69	3	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
acteoside acteoside: a protein kinase C inhibitor with hepatoprotective, anti-asthmatic, and analgesic activities; a phenylethanoid glycoside related to isoacteoside; from leaves of Lippia multiflora (Verbenaceae). acteoside : A glycoside that is the alpha-L-rhamnosyl-(1->3)-beta-D-glucoside of hydroxytyrosol in which the hydroxy group at position 4 of the glucopyranosyl moiety has undergone esterification by formal condensation with trans-caffeic acid.	2.05	1	0	catechols; cinnamate ester; disaccharide derivative; glycoside; polyphenol	anti-inflammatory agent; antibacterial agent; antileishmanial agent; neuroprotective agent; plant metabolite
anandamide anandamide : An N-acylethanolamine 20:4 resulting from the formal condensation of carboxy group of arachidonic acid with the amino group of ethanolamine.	2.45	2	0	endocannabinoid; N-acylethanolamine 20:4	human blood serum metabolite; neurotransmitter; vasodilator agent
glyceryl 2-arachidonate glyceryl 2-arachidonate: binds to cannabinoid receptors; structure in first source. 2-arachidonoylglycerol : An endocannabinoid and an endogenous agonist of the cannabinoid receptors (CB1 and CB2). It is an ester formed from omega-6-arachidonic acid and glycerol.	3.15	5	0	2-acylglycerol 20:4; endocannabinoid	human 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.	2.77	3	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
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.	2.92	4	0	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
as 605240 5-quinoxalin-6-ylmethylenethiazolidine-2,4-dione: a PI3Kgamma inhibitor; structure in first source. (5Z)-5-(quinoxalin-6-ylmethylidene)-1,3-thiazolidine-2,4-dione : A quinoxaline derivative that is quinoxaline in which the hydrogen at position 6 is replaced by a (2,4-dioxo-1,3-thiazolidin-5-ylidene)methyl group. It is a potent inhibitor of the PI3Kgamma, with an IC50 of 8 nM and inhibits the progression of joint inflammation and damage in both lymphocyte-independent and dependent mouse models of rheumatoid arthritis.	2.06	1	0	quinoxaline derivative; thiazolidinediones	anti-inflammatory agent; antirheumatic drug; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor
upf 596 UPF 596: structure in first source	2	1	0
sib 1893 SIB 1893: a selective mGluR5 antagonist; structure in first source	2	1	0
alpha-methylserine-o-phosphate monophenyl ester alpha-methylserine-O-phosphate monophenyl ester: a group II/III antagonist	2	1	0
kn 93 KN 93: reduces dopamine content in PC12h cells. KN-93 : A sulfonamide resulting from the formal condensation of p-methoxybenzenesulfonic acid with the anilino nitrogen of 2-(aminomethyl)-N-(2-hydroxyethyl)aniline in which the hydrogens of the primary amino group have been replaced by methyl and p-chlorocinnamyl groups. KN-93 is a selective inhibitor of Ca(2+)/calmodulin-dependent protein kinase II.	2.04	1	0	monochlorobenzenes; monomethoxybenzene; primary alcohol; sulfonamide; tertiary amino compound	EC 2.7.11.17 (Ca(2+)/calmodulin-dependent protein kinase) inhibitor; geroprotector
kn 62 KN 62: inhibitor of Ca/calmodulin-dependent protein kinase II	2.41	2	0	piperazines
1,2-oleoylphosphatidylcholine 1,2-oleoylphosphatidylcholine: RN given refers to (Z,Z)-isomer. dioleoyl phosphatidylcholine : A phosphatidylcholine in which the phosphatidyl acyl groups are both oleoyl.	1.96	1	0	phosphatidylcholine(1+)
casein kinase ii Casein Kinase II: A ubiquitous casein kinase that is comprised of two distinct catalytic subunits and dimeric regulatory subunit. Casein kinase II has been shown to phosphorylate a large number of substrates, many of which are proteins involved in the regulation of gene expression.	2	1	0
5,5',6,6'-tetrachloro-1,1',3,3'-tetraethylbenzimidazolocarbocyanine 5,5',6,6'-tetrachloro-1,1',3,3'-tetraethylbenzimidazolocarbocyanine: structure given in first source. 1,1',3,3'-tetraethyl-5,5',6,6'-tetrachloroimidacarbocyanine : The cationic form of a C3 cyanine dye having 1,3-diethyl-5,6-dichloroindoleinine units at each end.	2.02	1	0	cyanine dye; indolium ion	fluorochrome
barium Barium: An element of the alkaline earth group of metals. It has an atomic symbol Ba, atomic number 56, and atomic weight 138. All of its acid-soluble salts are poisonous.	2.39	2	0	alkaline earth metal atom; elemental barium
aluminum Aluminum: A metallic element that has the atomic number 13, atomic symbol Al, and atomic weight 26.98.	2.31	1	0	boron group element atom; elemental aluminium; metal atom
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.	2.02	1	0	cyclopropanes; morphinane-like compound; organic heteropentacyclic compound	antidote to opioid poisoning; central nervous system depressant; environmental contaminant; mu-opioid receptor antagonist; xenobiotic
veratrine Veratrine: A voltage-gated sodium channel activator.	1.96	1	0	alkaloid
cysteine Cysteine: A thiol-containing non-essential amino acid that is oxidized to form CYSTINE.. L-cysteinium : The L-enantiomer of cysteinium.. cysteine : A sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3.	2.02	1	0	cysteinium	fundamental metabolite
nitecapone nitecapone: structure given in first source	1.99	1	0	hydroxycinnamic acid
norbinaltorphimine norbinaltorphimine: kappa opiate receptor antagonist; structure given in first source	2.02	1	0	isoquinolines
guanabenz Guanabenz: An alpha-2 selective adrenergic agonist used as an antihypertensive agent.	2	1	0	dichlorobenzene
carbocyanines Carbocyanines: Compounds that contain three methine groups. They are frequently used as cationic dyes used for differential staining of biological materials.	2.02	1	0	cyanine dye; organic iodide salt	fluorochrome
tetrodotoxin Tetrodotoxin: An aminoperhydroquinazoline poison found mainly in the liver and ovaries of fishes in the order TETRAODONTIFORMES, which are eaten. The toxin causes paresthesia and paralysis through interference with neuromuscular conduction.. tetrodotoxin : A quinazoline alkaloid that is a marine toxin isolated from fish such as puffer fish. It has been shown to exhibit potential neutotoxicity due to its ability to block voltage-gated sodium channels.	4.63	26	0	azatetracycloalkane; oxatetracycloalkane; quinazoline alkaloid	animal metabolite; bacterial metabolite; marine metabolite; neurotoxin; voltage-gated sodium channel blocker
dizocilpine maleate Dizocilpine Maleate: A potent noncompetitive antagonist of the NMDA receptor (RECEPTORS, N-METHYL-D-ASPARTATE) used mainly as a research tool. The drug has been considered for the wide variety of neurodegenerative conditions or disorders in which NMDA receptors may play an important role. Its use has been primarily limited to animal and tissue experiments because of its psychotropic effects.. dizocilpine maleate : A maleate salt obtained by reaction of dizocilpine with one equivalent of maleic acid.	3.53	8	0	maleate salt; tetracyclic antidepressant	anaesthetic; anticonvulsant; neuroprotective agent; nicotinic antagonist; NMDA receptor antagonist
latrunculin b latrunculin B: 14-membered macrolide attached to 2-thiazolidinone moiety; from Red Sea sponge Latrunculia magnifica; see also latrunculin A; structure given in first source. latrunculin B : A macrolide consisting of a 14-membered bicyclic lactone attached to the rare 2-thiazolidinone moiety. It is obtained from the Red Sea sponge Latrunculia magnifica.	2.02	1	0	cyclic hemiketal; macrolide; oxabicycloalkane; thiazolidinone	actin polymerisation inhibitor; metabolite; toxin
bafilomycin a1 bafilomycin A1: from Streptomyces griseus; structure given in first source. bafilomycin A1 : The most used of the bafilomycins, a family of toxic macrolide antibiotics derived from Streptomyces griseus.	1.99	1	0	cyclic hemiketal; macrolide antibiotic; oxanes	apoptosis inducer; autophagy inhibitor; bacterial metabolite; EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor; EC 3.6.3.14 (H(+)-transporting two-sector ATPase) inhibitor; ferroptosis inhibitor; fungicide; potassium ionophore; toxin
mofegiline [no description available]	2.38	2	0
2-(3,4-dimethoxyphenyl)-3-fluoroallylamine 2-(3,4-dimethoxyphenyl)-3-fluoroallylamine: structure & RN from first source; RN given refers to (E)-isomer	1.97	1	0
clocinnamox clocinnamox: structure given in first source; an opioid mu receptor agonist	2.02	1	0
am 404 [no description available]	2.46	2	0	anilide
staurosporine staurosporinium : Conjugate acid of staurosporine.	2.43	2	0	ammonium ion derivative
dioleoylphosphatidic acid dioleoylphosphatidic acid: RN given refers to (Z)-isomer. dioleoyl phosphatidic acid : A phosphatidic acid in which the phosphatidyl acyl groups are both oleoyl.	1.96	1	0	1,2-bis(octadec-9-enoyl)phosphatidic acid
kb r7943 2-(2-(4-(4-nitrobenzyloxy)phenyl)ethyl)isothiourea methanesulfonate: inhibits the reverse mode of Na+/Ca++ exchange in cells expressing NCX1; structure in first source	2.03	1	0
n-(4-(2-methoxyphenoxy)phenyl)-n-(2,2,2-trifluoroethylsulfonyl)pyrid-3-ylmethylamine N-(4-(2-methoxyphenoxy)phenyl)-N-(2,2,2-trifluoroethylsulfonyl)pyrid-3-ylmethylamine: a metabotropic glutamate 2 receptor potentiator; structure in first source	2.02	1	0
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).	2.11	1	0	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
xestospongin a xestospongin A: blocks inositol 1,4,5-trisphosphate receptors; structure in first source; from Xestospongia sponge	2.01	1	0
fr236924 FR236924: structure in first source	2.15	1	0
3,4-dihydro-5-(4-(1-piperidinyl)butoxy)-1(2h)-isoquinolinone [no description available]	2.02	1	0
cgp 55845a CGP 55845A: GABA-B receptor antagonist; RN refers to cpd with no isomeric designation; CGP 55845 is the (1S,2S)-isomer	2.74	3	0
aluminum oxide Aluminum Oxide: An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories.	4.27	4	1
cgp 20712a CGP 20712A: structure given in first source; CGP 26505, a beta1-selective beta-adrenoceptor antagonist, is the (S)-isomer of CGP 20712A	1.99	1	0
arl-67156 6-N,N-diethyl-beta,gamma-dibromomethylene-D-ATP: an inhibitor of ecto-ATPase	2.11	1	0
indantadol indantadol: NMDA antagonist and nonselective MAO inhibitor for the potential treatment of neuropathic pain; structure in first source	2.02	1	0
ly 379268 LY 379268: group II metabotropic glutamate receptor agonist; structure in first source. LY 379268 : An organic heterobicyclic compound that is (1R,5S)-2-oxabicyclo[3.1.0]hexane carrying amino, carboxy, and carboxy groups at positions 4R, 4R and 6R, respectively. It is a potent agonist of group II metabotropic glutamate receptors mGluR2 and mGluR3 (EC50 = 2.69 nM and 4.48 nM, respectively) that exhibits antipsychotic-like action in animal models of schizophrenia.	2.49	2	0	amino dicarboxylic acid; bridged compound; organic heterobicyclic compound	antipsychotic agent; anxiolytic drug; metabotropic glutamate receptor agonist; neuroprotective agent
alpha-monofluoromethyldopa alpha-monofluoromethyldopa: structure given in third source; RN given refers to (DL)-isomer	1.97	1	0
oxadiazoles Oxadiazoles: Compounds containing five-membered heteroaromatic rings containing two carbons, two nitrogens, and one oxygen atom which exist in various regioisomeric forms.	2.05	1	0
ly 341495 LY 341495: structure in first source	3.97	13	0
n-(1,3-diphenyl-1h-pyrazolo-5-yl)-4-nitrobenzamide N-(1,3-diphenyl-1H-pyrazolo-5-yl)-4-nitrobenzamide: an mGluR5 positive allosteric modulator; structure in first source	2.1	1	0
veratridine Veratridine: A benzoate-cevane found in VERATRUM and Schoenocaulon. It activates SODIUM CHANNELS to stay open longer than normal.	8.07	5	0
ubp296 UBP296: potent and selective kainate receptor antagonist; structure in first source	2.02	1	0	alpha-amino acid
calcimycin Calcimycin: An ionophorous, polyether antibiotic from Streptomyces chartreusensis. It binds and transports CALCIUM and other divalent cations across membranes and uncouples oxidative phosphorylation while inhibiting ATPase of rat liver mitochondria. The substance is used mostly as a biochemical tool to study the role of divalent cations in various biological systems.	1.96	1	0	benzoxazole
sepharose agarose : A linear polysaccharide made up from alternating D-galactose and 3,6-anhydro-alpha-L-galactopyranose residues joined by alpha-(1->3)- and beta-(1->4)-linkages.	2.03	1	0
pituitrin Pituitrin: A substance or extract from the neurohypophysis (PITUITARY GLAND, POSTERIOR).	4.68	2	1
cysteinyldopa Cysteinyldopa: Found in large amounts in the plasma and urine of patients with malignant melanoma. It is therefore used in the diagnosis of melanoma and for the detection of postoperative metastases. Cysteinyldopa is believed to be formed by the rapid enzymatic hydrolysis of 5-S-glutathionedopa found in melanin-producing cells.	1.99	1	0	catecholamine; zwitterion
vu0092273 VU0092273: mGlu(5) positive allosteric modulator	2.25	1	0
cytochrome c-t Cytochromes c: Cytochromes of the c type that are found in eukaryotic MITOCHONDRIA. They serve as redox intermediates that accept electrons from MITOCHONDRIAL ELECTRON TRANSPORT COMPLEX III and transfer them to MITOCHONDRIAL ELECTRON TRANSPORT COMPLEX IV.	2.02	1	0
dynorphins Dynorphins: A class of opioid peptides including dynorphin A, dynorphin B, and smaller fragments of these peptides. Dynorphins prefer kappa-opioid receptors (RECEPTORS, OPIOID, KAPPA) and have been shown to play a role as central nervous system transmitters.	2	1	0
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.	1.99	1	0	polypeptide
protein kinase inhibitor peptide (6-24) protein kinase inhibitor peptide (6-24): amino acid sequence given in first source	2.05	1	0
glucagon Glucagon: A 29-amino acid pancreatic peptide derived from proglucagon which is also the precursor of intestinal GLUCAGON-LIKE PEPTIDES. Glucagon is secreted by PANCREATIC ALPHA CELLS and plays an important role in regulation of BLOOD GLUCOSE concentration, ketone metabolism, and several other biochemical and physiological processes. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p1511). glucagon : A 29-amino acid peptide hormone consisting of His, Ser, Gln, Gly, Thr, Phe, Thr, Ser, Asp, Tyr, Ser, Lys, Tyr, Leu, Asp, Ser, Arg, Arg, Ala, Gln, Asp, Phe, Val, Gln, Trp, Leu, Met, Asn and Thr residues joined in sequence.	2.39	2	0	peptide hormone
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).	4.32	2	2
sauvagine sauvagine: isolated from skin of South American hylid frog, Phyllomedusa sauvagei; has hypotensive & antidiuretic effect; potent stimulating action on secretion of ACTH & corticosterone; inhibitory effect on secretion of PRL, GH, & TSH; consists of straight chain of 40 amino acid residues	2.06	1	0
neuropeptide y Neuropeptide Y: A 36-amino acid peptide present in many organs and in many sympathetic noradrenergic neurons. It has vasoconstrictor and natriuretic activity and regulates local blood flow, glandular secretion, and smooth muscle activity. The peptide also stimulates feeding and drinking behavior and influences secretion of pituitary hormones.	3.36	7	0
c-peptide C-Peptide: The middle segment of proinsulin that is between the N-terminal B-chain and the C-terminal A-chain. It is a pancreatic peptide of about 31 residues, depending on the species. Upon proteolytic cleavage of proinsulin, equimolar INSULIN and C-peptide are released. C-peptide immunoassay has been used to assess pancreatic beta cell function in diabetic patients with circulating insulin antibodies or exogenous insulin. Half-life of C-peptide is 30 min, almost 8 times that of insulin.	3.37	1	1
pr 39 PR 39: antibacterial peptide from pig intestine; MW 4.719 kDa; contains 39 amino acid residues; has high activity against E coli & Bacillus megaterium; amino acid sequence given in first source. PR-39 : A 39 amino acid porcine cathelicidin that is rich in proline and arginine residues. It plays a pivotal role in the innate immune defence of the pig against infections and exhibits antimicrobial and immunomodulatory activities.	2.02	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)	2.04	1	0
phosphatidylcholines Phosphatidylcholines: Derivatives of PHOSPHATIDIC ACIDS in which the phosphoric acid is bound in ester linkage to a CHOLINE moiety.	2.37	2	0	1,2-diacyl-sn-glycero-3-phosphocholine
thimerosal Thimerosal: An ethylmercury-sulfidobenzoate that has been used as a preservative in VACCINES; ANTIVENINS; and OINTMENTS. It was formerly used as a topical antiseptic. It degrades to ethylmercury and thiosalicylate.. thimerosal : An alkylmercury compound (approximately 49% mercury by weight) used as an antiseptic and antifungal agent.	2.01	1	0	alkylmercury compound	antifungal drug; antiseptic drug; disinfectant; drug allergen
nsc 23766 NSC 23766 trihydrochloride : A hydrochloride resulting from the formal reaction of NSC 23766 with 3 mol eq. of hydrogen chloride. An inhibitor of the signalling G-protein known as RAC1 (Ras-related C3 botulinum toxin substrate 1).. Rac1 inhibitor : Any inhibitor of Rac1.	2.06	1	0	hydrochloride	antiviral agent; apoptosis inducer; EC 3.6.5.2 (small monomeric GTPase) inhibitor; muscarinic antagonist
lucifer yellow lucifer yellow: RN given refers to di-Li salt	2.02	1	0	organic lithium salt	fluorochrome
2-(2'-carboxy-3'-phenylcyclopropyl)glycine 2-(2'-carboxy-3'-phenylcyclopropyl)glycine: structure in first source	2.42	2	0
s-adenosylmethionine (R)-S-adenosyl-L-methionine : An S-adenosyl-L-methionine that has R-configuration.. S-adenosyl-L-methionine zwitterion : A zwitterionic tautomer of S-adenosyl-L-methionine arising from shift of the proton from the carboxy group to the amino group.. (R)-S-adenosyl-L-methionine zwitterion : An S-adenosyl-L-methionine zwitterion that has R-configuration; major species at pH 7.3.. (S)-S-adenosyl-L-methionine zwitterion : An S-adenosyl-L-methionine zwitterion that has S-configuration; major species at pH 7.3.. S-adenosyl-L-methionine : A sulfonium compound that is the S-adenosyl derivative of L-methionine. It is an intermediate in the metabolic pathway of methionine.	2.65	3	0	organic cation; sulfonium compound	coenzyme; cofactor; human metabolite; micronutrient; Mycoplasma genitalium metabolite; nutraceutical; Saccharomyces cerevisiae metabolite
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.	3.73	10	0
jzl 184 JZL 184: inhibits monoacylglycerol lipase; structure in first source	2.08	1	0	benzodioxoles
glycolipids [no description available]	1.96	1	0
piperidines Piperidines: A family of hexahydropyridines.	4.52	23	0
vasoactive intestinal peptide Vasoactive Intestinal Peptide: A highly basic, 28 amino acid neuropeptide released from intestinal mucosa. It has a wide range of biological actions affecting the cardiovascular, gastrointestinal, and respiratory systems and is neuroprotective. It binds special receptors (RECEPTORS, VASOACTIVE INTESTINAL PEPTIDE).	1.97	1	0
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.	2.37	2	0	ascorbic acid; vitamin C	coenzyme; cofactor; flour treatment agent; food antioxidant; food colour retention agent; geroprotector; plant metabolite; skin lightening agent
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.	1.98	1	0	benzenes; hydroxycoumarin; methyl ketone
snx 230 omega-conotoxin-MVIIC: isolated from Conus magus; amino acid sequence given in first source	2.02	1	0
kaolinite Kaolin: The most common mineral of a group of hydrated aluminum silicates, approximately H2Al2Si2O8-H2O. It is prepared for pharmaceutical and medicinal purposes by levigating with water to remove sand, etc. (From Merck Index, 11th ed) The name is derived from Kao-ling (Chinese: high ridge), the original site. (From Grant & Hackh's Chemical Dictionary, 5th ed). kaolin : An aluminosilicate soft white mineral named after the hill in China (Kao-ling) from which it was mined for centuries. In its natural state kaolin is a white, soft powder consisting principally of the mineral kaolinite, and varying amounts of other minerals such as muscovite, quartz, feldspar, and anatase. It is used in the manufacture of china and porcelain and also widely used in the production of paper, rubber, paint, drying agents, and many other products.	2.02	1	0	aluminosilicate mineral; mixture	antidiarrhoeal drug; excipient
okadaic acid Okadaic Acid: A specific inhibitor of phosphoserine/threonine protein phosphatase 1 and 2a. It is also a potent tumor promoter. It is produced by DINOFLAGELLATES and causes diarrhetic SHELLFISH POISONING.. okadaic acid : A polycyclic ether that is produced by several species of dinoflagellates, and is known to accumulate in both marine sponges and shellfish. A polyketide, polyether derivative of a C38 fatty acid, it is one of the primary causes of diarrhetic shellfish poisoning (DSP). It is a potent inhibitor of specific protein phosphatases and is known to have a variety of negative effects on cells.	3.13	5	0	ketal
dcg 04 DCG 04: E-64 analog; structure in first source	2.01	1	0
kiss1 protein, human Kisspeptins: Intercellular signaling peptides that were originally characterized by their ability to suppress NEOPLASM METASTASIS. Kisspeptins have since been found to play an important role in the neuroendocrine regulation of REPRODUCTION.	2.41	1	0
cyclin d1 Cyclin D1: Protein encoded by the bcl-1 gene which plays a critical role in regulating the cell cycle. Overexpression of cyclin D1 is the result of bcl-1 rearrangement, a t(11;14) translocation, and is implicated in various neoplasms.	2.13	1	0
technetium tc 99m sulfur colloid Technetium Tc 99m Sulfur Colloid: A gamma-emitting radionuclide imaging agent used for the diagnosis of diseases in many tissues, particularly in the gastrointestinal system, liver, and spleen.	3	1	0
nitrophenols Nitrophenols: PHENOLS carrying nitro group substituents.	2.38	2	0
hydroxytyrosyl acetate hydroxytyrosyl acetate: structure in first source	7.52	2	0
neuropeptide y, leu(31)-pro(34)- neuropeptide Y, Leu(31)-Pro(34)-: specific Y1 receptor agonist	2.02	1	0
cyclosporine Cyclosporine: A cyclic undecapeptide from an extract of soil fungi. It is a powerful immunosupressant with a specific action on T-lymphocytes. It is used for the prophylaxis of graft rejection in organ and tissue transplantation. (From Martindale, The Extra Pharmacopoeia, 30th ed).	2.46	2	0
amyloid beta-peptides amyloid beta-protein (1-40): although acutely neurotoxic in both rat & monkey cerebral cortex, neuronal degeneration in primates resembles more closely to that found in Alzheimer's disease; amino acid sequence has been determined	2.02	1	0
cyclic gmp Cyclic GMP: Guanosine cyclic 3',5'-(hydrogen phosphate). A guanine nucleotide containing one phosphate group which is esterified to the sugar moiety in both the 3'- and 5'-positions. It is a cellular regulatory agent and has been described as a second messenger. Its levels increase in response to a variety of hormones, including acetylcholine, insulin, and oxytocin and it has been found to activate specific protein kinases. (From Merck Index, 11th ed). 3',5'-cyclic GMP : A 3',5'-cyclic purine nucleotide in which the purine nucleobase is specified as guanidine.	1.96	1	0	3',5'-cyclic purine nucleotide; guanyl ribonucleotide	Escherichia coli metabolite; human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite
guanosine diphosphate Guanosine Diphosphate: A guanine nucleotide containing two phosphate groups esterified to the sugar moiety.	2.05	1	0	guanosine 5'-phosphate; purine ribonucleoside 5'-diphosphate	Escherichia coli metabolite; mouse metabolite; uncoupling protein inhibitor
guanosine 5'-o-(3-thiotriphosphate) Guanosine 5'-O-(3-Thiotriphosphate): Guanosine 5'-(trihydrogen diphosphate), monoanhydride with phosphorothioic acid. A stable GTP analog which enjoys a variety of physiological actions such as stimulation of guanine nucleotide-binding proteins, phosphoinositide hydrolysis, cyclic AMP accumulation, and activation of specific proto-oncogenes.	2.41	2	0	nucleoside triphosphate analogue
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.	1.99	1	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
zaprinast zaprinast: anaphylaxis inhibitor; structure	2.07	1	0	triazolopyrimidines
guanosine 5'-o-(2-thiodiphosphate) [no description available]	2.05	1	0	nucleoside diphosphate analogue
arsenazo iii Arsenazo III: Metallochrome indicator that changes color when complexed to the calcium ion under physiological conditions. It is used to measure local calcium ion concentrations in vivo.	1.96	1	0
noc 9 NOC 9: nitrogen oxide releaser	2.02	1	0
carbidopa Carbidopa: An inhibitor of DOPA DECARBOXYLASE that prevents conversion of LEVODOPA to dopamine. It is used in PARKINSON DISEASE to reduce peripheral adverse effects of LEVODOPA. It has no anti-parkinson activity by itself.. carbidopa : The hydrate of 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 in the management of Parkinson's disease to reduce peripheral adverse effects of levodopa.	2.39	2	0
phosphatidylbutanol [no description available]	2.03	1	0
preproenkephalin preproenkephalin: initial enkephalin precursor	2	1	0
leptin Leptin: A 16-kDa peptide hormone secreted from WHITE ADIPOCYTES. Leptin serves as a feedback signal from fat cells to the CENTRAL NERVOUS SYSTEM in regulation of food intake, energy balance, and fat storage.	2.01	1	0

Condition	Relationship Strength	Studies	Trials
Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases.	6.55	44	0
Depression Depressive states usually of moderate intensity in contrast with MAJOR DEPRESSIVE DISORDER present in neurotic and psychotic disorders.	10.78	13	0
Acute Confusional Senile Dementia [description not available]	5.71	7	0
Alzheimer Disease A degenerative disease of the BRAIN characterized by the insidious onset of DEMENTIA. Impairment of MEMORY, judgment, attention span, and problem solving skills are followed by severe APRAXIAS and a global loss of cognitive abilities. The condition primarily occurs after age 60, and is marked pathologically by severe cortical atrophy and the triad of SENILE PLAQUES; NEUROFIBRILLARY TANGLES; and NEUROPIL THREADS. (From Adams et al., Principles of Neurology, 6th ed, pp1049-57)	5.71	7	0
Injury, Ischemia-Reperfusion [description not available]	4.02	9	0
Ischemia A hypoperfusion of the BLOOD through an organ or tissue caused by a PATHOLOGIC CONSTRICTION or obstruction of its BLOOD VESSELS, or an absence of BLOOD CIRCULATION.	3.91	10	0
Reperfusion Injury Adverse functional, metabolic, or structural changes in tissues that result from the restoration of blood flow to the tissue (REPERFUSION) following ISCHEMIA.	4.02	9	0
Obesity A status with BODY WEIGHT that is grossly above the recommended standards, usually due to accumulation of excess FATS in the body. The standards may vary with age, sex, genetic or cultural background. In the BODY MASS INDEX, a BMI greater than 30.0 kg/m2 is considered obese, and a BMI greater than 40.0 kg/m2 is considered morbidly obese (MORBID OBESITY).	8.97	11	5
Alloxan Diabetes [description not available]	2.44	2	0
Diabetic Glomerulosclerosis [description not available]	2.6	1	0
Diabetic Nephropathies KIDNEY injuries associated with diabetes mellitus and affecting KIDNEY GLOMERULUS; ARTERIOLES; KIDNEY TUBULES; and the interstitium. Clinical signs include persistent PROTEINURIA, from microalbuminuria progressing to ALBUMINURIA of greater than 300 mg/24 h, leading to reduced GLOMERULAR FILTRATION RATE and END-STAGE RENAL DISEASE.	2.6	1	0
Allodynia [description not available]	3.33	6	0
Ache [description not available]	6.34	14	1
Pain An unpleasant sensation induced by noxious stimuli which are detected by NERVE ENDINGS of NOCICEPTIVE NEURONS.	6.34	14	1
Acute Edematous Pancreatitis [description not available]	2.6	1	0
Acute Disease Disease having a short and relatively severe course.	2.97	4	0
Pancreatitis INFLAMMATION of the PANCREAS. Pancreatitis is classified as acute unless there are computed tomographic or endoscopic retrograde cholangiopancreatographic findings of CHRONIC PANCREATITIS (International Symposium on Acute Pancreatitis, Atlanta, 1992). The two most common forms of acute pancreatitis are ALCOHOLIC PANCREATITIS and gallstone pancreatitis.	2.6	1	0
Apnea, Obstructive Sleep [description not available]	7.63	4	4
Sleep Apnea, Obstructive A disorder characterized by recurrent apneas during sleep despite persistent respiratory efforts. It is due to upper airway obstruction. The respiratory pauses may induce HYPERCAPNIA or HYPOXIA. Cardiac arrhythmias and elevation of systemic and pulmonary arterial pressures may occur. Frequent partial arousals occur throughout sleep, resulting in relative SLEEP DEPRIVATION and daytime tiredness. Associated conditions include OBESITY; ACROMEGALY; MYXEDEMA; micrognathia; MYOTONIC DYSTROPHY; adenotonsilar dystrophy; and NEUROMUSCULAR DISEASES. (From Adams et al., Principles of Neurology, 6th ed, p395)	7.63	4	4
Cerebral Ischemia [description not available]	2.99	4	0
Astrocytosis [description not available]	2.66	2	0
Brain Ischemia Localized reduction of blood flow to brain tissue due to arterial obstruction or systemic hypoperfusion. This frequently occurs in conjunction with brain hypoxia (HYPOXIA, BRAIN). Prolonged ischemia is associated with BRAIN INFARCTION.	2.99	4	0
Innate Inflammatory Response [description not available]	4.23	6	0
Inflammation A pathological process characterized by injury or destruction of tissues caused by a variety of cytologic and chemical reactions. It is usually manifested by typical signs of pain, heat, redness, swelling, and loss of function.	4.23	6	0
Fra(X) Syndrome [description not available]	4.09	14	0
Fragile X Syndrome A condition characterized genotypically by mutation of the distal end of the long arm of the X chromosome (at gene loci FRAXA or FRAXE) and phenotypically by cognitive impairment, hyperactivity, SEIZURES, language delay, and enlargement of the ears, head, and testes. INTELLECTUAL DISABILITY occurs in nearly all males and roughly 50% of females with the full mutation of FRAXA. (From Menkes, Textbook of Child Neurology, 5th ed, p226)	4.09	14	0
Multiple System Atrophy Syndrome [description not available]	5.59	9	0
a-Synucleinopathies [description not available]	2.31	1	0
Idiopathic Parkinson Disease [description not available]	7.89	20	1
Autonomic Failure, Pure [description not available]	2.99	4	0
Parkinson Disease A progressive, degenerative neurologic disease characterized by a TREMOR that is maximal at rest, retropulsion (i.e. a tendency to fall backwards), rigidity, stooped posture, slowness of voluntary movements, and a masklike facial expression. Pathologic features include loss of melanin containing neurons in the substantia nigra and other pigmented nuclei of the brainstem. LEWY BODIES are present in the substantia nigra and locus coeruleus but may also be found in a related condition (LEWY BODY DISEASE, DIFFUSE) characterized by dementia in combination with varying degrees of parkinsonism. (Adams et al., Principles of Neurology, 6th ed, p1059, pp1067-75)	7.89	20	1
Multiple System Atrophy A syndrome complex composed of three conditions which represent clinical variants of the same disease process: STRIATONIGRAL DEGENERATION; SHY-DRAGER SYNDROME; and the sporadic form of OLIVOPONTOCEREBELLAR ATROPHIES. Clinical features include autonomic, cerebellar, and basal ganglia dysfunction. Pathologic examination reveals atrophy of the basal ganglia, cerebellum, pons, and medulla, with prominent loss of autonomic neurons in the brain stem and spinal cord. (From Adams et al., Principles of Neurology, 6th ed, p1076; Baillieres Clin Neurol 1997 Apr;6(1):187-204; Med Clin North Am 1999 Mar;83(2):381-92)	5.59	9	0
Nerve Degeneration Loss of functional activity and trophic degeneration of nerve axons and their terminal arborizations following the destruction of their cells of origin or interruption of their continuity with these cells. The pathology is characteristic of neurodegenerative diseases. Often the process of nerve degeneration is studied in research on neuroanatomical localization and correlation of the neurophysiology of neural pathways.	2.54	2	0
Nerve Pain [description not available]	2.86	3	0
Neuralgia Intense or aching pain that occurs along the course or distribution of a peripheral or cranial nerve.	2.86	3	0
Chronic Illness [description not available]	11.02	19	13
Constriction, Pathological [description not available]	2.46	2	0
Chronic Disease Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care (Dictionary of Health Services Management, 2d ed). For epidemiological studies chronic disease often includes HEART DISEASES; STROKE; CANCER; and diabetes (DIABETES MELLITUS, TYPE 2).	11.02	19	13
Constriction, Pathologic The condition of an anatomical structure's being constricted beyond normal dimensions.	2.46	2	0
Anhedonia Inability to experience pleasure due to impairment or dysfunction of normal psychological and neurobiological mechanisms. It is a symptom of many PSYCHOTIC DISORDERS (e.g., DEPRESSIVE DISORDER, MAJOR; and SCHIZOPHRENIA).	2.15	1	0
Rheumatoid Arthritis [description not available]	2.15	1	0
Arthritis, Rheumatoid A chronic systemic disease, primarily of the joints, marked by inflammatory changes in the synovial membranes and articular structures, widespread fibrinoid degeneration of the collagen fibers in mesenchymal tissues, and by atrophy and rarefaction of bony structures. Etiology is unknown, but autoimmune mechanisms have been implicated.	2.15	1	0
Academic Disorder, Developmental [description not available]	2.17	1	0
Age-Related Memory Disorders [description not available]	2.17	1	0
Learning Disabilities Conditions characterized by a significant discrepancy between an individual's perceived level of intellect and their ability to acquire new language and other cognitive skills. These may result from organic or psychological conditions. Relatively common subtypes include DYSLEXIA, DYSCALCULIA, and DYSGRAPHIA.	2.17	1	0
Memory Disorders Disturbances in registering an impression, in the retention of an acquired impression, or in the recall of an impression. Memory impairments are associated with DEMENTIA; CRANIOCEREBRAL TRAUMA; ENCEPHALITIS; ALCOHOLISM (see also ALCOHOL AMNESTIC DISORDER); SCHIZOPHRENIA; and other conditions.	2.17	1	0
Cardiac Failure [description not available]	4.89	8	1
Heart Failure A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (VENTRICULAR DYSFUNCTION), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as MYOCARDIAL INFARCTION.	4.89	8	1
Blood Pressure, High [description not available]	8.6	28	4
Hypertension Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.	8.6	28	4
Neurovisceral Storage Disease with Vertical Supranuclear Ophthalmoplegia [description not available]	2.17	1	0
Niemann-Pick Disease, Type C An autosomal recessive lipid storage disorder that is characterized by accumulation of CHOLESTEROL and SPHINGOMYELINS in cells of the VISCERA and the CENTRAL NERVOUS SYSTEM. Type C (or C1) and type D are allelic disorders caused by mutation of the NPC1 gene, which encodes a protein that mediates intracellular cholesterol transport from LYSOSOMES. Clinical signs include hepatosplenomegaly and chronic neurological symptoms. Type D is a variant in people with a Nova Scotia ancestry.	2.17	1	0
Lassitude [description not available]	7.74	5	4
Cancer of Prostate [description not available]	2.17	1	0
Fatigue The state of weariness following a period of exertion, mental or physical, characterized by a decreased capacity for work and reduced efficiency to respond to stimuli.	7.74	5	4
Prostatic Neoplasms Tumors or cancer of the PROSTATE.	2.17	1	0
Depression, Involutional Form of depression in those MIDDLE AGE with feelings of ANXIETY.	3.09	1	0
Depressive Disorder, Major Disorder in which five (or more) of the following symptoms have been present during the same 2-week period and represent a change from previous functioning; at least one of the symptoms is either (1) depressed mood or (2) loss of interest or pleasure. Symptoms include: depressed mood most of the day, nearly every daily; markedly diminished interest or pleasure in activities most of the day, nearly every day; significant weight loss when not dieting or weight gain; Insomnia or hypersomnia nearly every day; psychomotor agitation or retardation nearly every day; fatigue or loss of energy nearly every day; feelings of worthlessness or excessive or inappropriate guilt; diminished ability to think or concentrate, or indecisiveness, nearly every day; or recurrent thoughts of death, recurrent suicidal ideation without a specific plan, or a suicide attempt. (DSM-5)	3.09	1	0
Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	7.77	25	3
Colitis Inflammation of the COLON section of the large intestine (INTESTINE, LARGE), usually with symptoms such as DIARRHEA (often with blood and mucus), ABDOMINAL PAIN, and FEVER.	2.55	2	0
Postural Orthostatic Tachycardia Syndrome A syndrome of ORTHOSTATIC INTOLERANCE combined with excessive upright TACHYCARDIA, and usually without associated ORTHOSTATIC HYPOTENSION. All variants have in common an excessively reduced venous return to the heart (central HYPOVOLEMIA) while upright.	3.87	2	0
Aneurysm, Anterior Cerebral Artery [description not available]	2.43	2	0
Cardiomyopathies, Primary [description not available]	2.48	2	0
Hemorrhage, Subarachnoid [description not available]	4.34	7	0
Intracranial Aneurysm Abnormal outpouching in the wall of intracranial blood vessels. Most common are the saccular (berry) aneurysms located at branch points in CIRCLE OF WILLIS at the base of the brain. Vessel rupture results in SUBARACHNOID HEMORRHAGE or INTRACRANIAL HEMORRHAGES. Giant aneurysms (	2.43	2	0
Cardiomyopathies A group of diseases in which the dominant feature is the involvement of the CARDIAC MUSCLE itself. Cardiomyopathies are classified according to their predominant pathophysiological features (DILATED CARDIOMYOPATHY; HYPERTROPHIC CARDIOMYOPATHY; RESTRICTIVE CARDIOMYOPATHY) or their etiological/pathological factors (CARDIOMYOPATHY, ALCOHOLIC; ENDOCARDIAL FIBROELASTOSIS).	2.48	2	0
Subarachnoid Hemorrhage Bleeding into the intracranial or spinal SUBARACHNOID SPACE, most resulting from INTRACRANIAL ANEURYSM rupture. It can occur after traumatic injuries (SUBARACHNOID HEMORRHAGE, TRAUMATIC). Clinical features include HEADACHE; NAUSEA; VOMITING, nuchal rigidity, variable neurological deficits and reduced mental status.	4.34	7	0
Thromboembolism Obstruction of a blood vessel (embolism) by a blood clot (THROMBUS) in the blood stream.	2.08	1	0
Gastric Stasis [description not available]	3	1	0
Cholera Infantum [description not available]	3	1	0
Gastroparesis Chronic delayed gastric emptying. Gastroparesis may be caused by motor dysfunction or paralysis of STOMACH muscles or may be associated with other systemic diseases such as DIABETES MELLITUS.	3	1	0
Cardiometabolic Syndrome A cluster of symptoms that are risk factors for CARDIOVASCULAR DISEASES and TYPE 2 DIABETES MELLITUS. The major components not only include metabolic dysfunctions of METABOLIC SYNDROME but also HYPERTENSION, and ABDOMINAL OBESITY.	5.27	2	1
Compensatory Hyperinsulinemia A GLUCOSE-induced HYPERINSULINEMIA, a marker of insulin-resistant state. It is a mechanism to compensate for reduced sensitivity to insulin.	5.27	2	1
Weight Reduction [description not available]	3.01	1	0
Hyperinsulinism A syndrome with excessively high INSULIN levels in the BLOOD. It may cause HYPOGLYCEMIA. Etiology of hyperinsulinism varies, including hypersecretion of a beta cell tumor (INSULINOMA); autoantibodies against insulin (INSULIN ANTIBODIES); defective insulin receptor (INSULIN RESISTANCE); or overuse of exogenous insulin or HYPOGLYCEMIC AGENTS.	5.27	2	1
Weight Loss Decrease in existing BODY WEIGHT.	3.01	1	0
Metabolic Syndrome A cluster of symptoms that are risk factors for CARDIOVASCULAR DISEASES and TYPE 2 DIABETES MELLITUS. The major components of metabolic syndrome include ABDOMINAL OBESITY; atherogenic DYSLIPIDEMIA; HYPERTENSION; HYPERGLYCEMIA; INSULIN RESISTANCE; a proinflammatory state; and a prothrombotic (THROMBOSIS) state.	5.27	2	1
Anxiety Feelings or emotions of dread, apprehension, and impending disaster but not disabling as with ANXIETY DISORDERS.	5.26	4	1
Angiospasm, Intracranial [description not available]	2.1	1	0
Vasospasm, Intracranial Constriction of arteries in the SKULL due to sudden, sharp, and often persistent smooth muscle contraction in blood vessels. Intracranial vasospasm results in reduced vessel lumen caliber, restricted blood flow to the brain, and BRAIN ISCHEMIA that may lead to hypoxic-ischemic brain injury (HYPOXIA-ISCHEMIA, BRAIN).	2.1	1	0
Cocaine Abuse [description not available]	2.49	2	0
Drug Withdrawal Symptoms [description not available]	2.71	3	0
Substance Withdrawal Syndrome Physiological and psychological symptoms associated with withdrawal from the use of a drug after prolonged administration or habituation. The concept includes withdrawal from smoking or drinking, as well as withdrawal from an administered drug.	2.71	3	0
Cocaine-Related Disorders Disorders related or resulting from use of cocaine.	2.49	2	0
Happy Puppet Syndrome [description not available]	2.1	1	0
Angelman Syndrome A syndrome characterized by multiple abnormalities, MENTAL RETARDATION, and movement disorders. Present usually are skull and other abnormalities, frequent infantile spasms (SPASMS, INFANTILE); easily provoked and prolonged paroxysms of laughter (hence happy); jerky puppetlike movements (hence puppet); continuous tongue protrusion; motor retardation; ATAXIA; MUSCLE HYPOTONIA; and a peculiar facies. It is associated with maternal deletions of chromosome 15q11-13 and other genetic abnormalities. (From Am J Med Genet 1998 Dec 4;80(4):385-90; Hum Mol Genet 1999 Jan;8(1):129-35)	2.1	1	0
Neuroblastoma A common neoplasm of early childhood arising from neural crest cells in the sympathetic nervous system, and characterized by diverse clinical behavior, ranging from spontaneous remission to rapid metastatic progression and death. This tumor is the most common intraabdominal malignancy of childhood, but it may also arise from thorax, neck, or rarely occur in the central nervous system. Histologic features include uniform round cells with hyperchromatic nuclei arranged in nests and separated by fibrovascular septa. Neuroblastomas may be associated with the opsoclonus-myoclonus syndrome. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, pp2099-2101; Curr Opin Oncol 1998 Jan;10(1):43-51)	2.39	2	0
Deaf Mutism [description not available]	2.1	1	0
Deafness A general term for the complete loss of the ability to hear from both ears.	2.1	1	0
Deficiency, Vitamin E [description not available]	2.49	2	0
Hypotension, Postural [description not available]	10.64	18	11
Hypotension, Orthostatic A significant drop in BLOOD PRESSURE after assuming a standing position. Orthostatic hypotension is a finding, and defined as a 20-mm Hg decrease in systolic pressure or a 10-mm Hg decrease in diastolic pressure 3 minutes after the person has risen from supine to standing. Symptoms generally include DIZZINESS, blurred vision, and SYNCOPE.	10.64	18	11
Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)	6.16	7	1
Anoxemia [description not available]	3.69	10	0
Hypoxia Sub-optimal OXYGEN levels in the ambient air of living organisms.	3.69	10	0
ADDH [description not available]	5.26	4	1
Attention Deficit Disorder with Hyperactivity A behavior disorder originating in childhood in which the essential features are signs of developmentally inappropriate inattention, impulsivity, and hyperactivity. Although most individuals have symptoms of both inattention and hyperactivity-impulsivity, one or the other pattern may be predominant. The disorder is more frequent in males than females. Onset is in childhood. Symptoms often attenuate during late adolescence although a minority experience the full complement of symptoms into mid-adulthood. (From DSM-V)	5.26	4	1
Overweight A status with BODY WEIGHT that is above certain standards. In the scale of BODY MASS INDEX, overweight is defined as having a BMI of 25.0-29.9 kg/m2. Overweight may or may not be due to increases in body fat (ADIPOSE TISSUE), hence overweight does not equal over fat.	7.55	4	4
Metabolic Acidosis [description not available]	2.13	1	0
Acidosis A pathologic condition of acid accumulation or depletion of base in the body. The two main types are RESPIRATORY ACIDOSIS and metabolic acidosis, due to metabolic acid build up.	2.13	1	0
Amphetamine Abuse [description not available]	2.15	1	0
Amphetamine-Related Disorders Disorders related or resulting from use of amphetamines.	2.15	1	0
ANS (Autonomic Nervous System) Diseases [description not available]	11.04	18	13
Bradyarrhythmia [description not available]	2.04	1	0
Bradycardia Cardiac arrhythmias that are characterized by excessively slow HEART RATE, usually below 50 beats per minute in human adults. They can be classified broadly into SINOATRIAL NODE dysfunction and ATRIOVENTRICULAR BLOCK.	2.04	1	0
Genetic Predisposition [description not available]	2.05	1	0
Serotonin Syndrome An adverse drug interaction characterized by altered mental status, autonomic dysfunction, and neuromuscular abnormalities. It is most frequently caused by use of both serotonin reuptake inhibitors and monoamine oxidase inhibitors, leading to excess serotonin availability in the CNS at the serotonin 1A receptor.	2.05	1	0
Complications, Pregnancy [description not available]	3.37	2	0
Delayed Effects, Prenatal Exposure [description not available]	2.72	3	0
Congenital Hypocupremia [description not available]	4.33	4	0
Menkes Kinky Hair Syndrome An inherited disorder of copper metabolism transmitted as an X-linked trait and characterized by the infantile onset of HYPOTHERMIA, feeding difficulties, hypotonia, SEIZURES, bony deformities, pili torti (twisted hair), and severely impaired intellectual development. Defective copper transport across plasma and endoplasmic reticulum membranes results in copper being unavailable for the synthesis of several copper containing enzymes, including PROTEIN-LYSINE 6-OXIDASE; CERULOPLASMIN; and SUPEROXIDE DISMUTASE. Pathologic changes include defects in arterial elastin, neuronal loss, and gliosis. (From Menkes, Textbook of Child Neurology, 5th ed, p125)	4.33	4	0
Nicotine Addiction [description not available]	2.96	1	0
Tobacco Use Disorder Tobacco used to the detriment of a person's health or social functioning. Tobacco dependence is included.	2.96	1	0
Cognition Disorders Disorders characterized by disturbances in mental processes related to learning, thinking, reasoning, and judgment.	3.34	2	0
Aura [description not available]	3.62	9	0
Epilepsy A disorder characterized by recurrent episodes of paroxysmal brain dysfunction due to a sudden, disorderly, and excessive neuronal discharge. Epilepsy classification systems are generally based upon: (1) clinical features of the seizure episodes (e.g., motor seizure), (2) etiology (e.g., post-traumatic), (3) anatomic site of seizure origin (e.g., frontal lobe seizure), (4) tendency to spread to other structures in the brain, and (5) temporal patterns (e.g., nocturnal epilepsy). (From Adams et al., Principles of Neurology, 6th ed, p313)	3.62	9	0
Acute Rheumatic Fever [description not available]	2.06	1	0
Coronary Occlusion Complete blockage of blood flow through one of the CORONARY ARTERIES, usually from CORONARY ATHEROSCLEROSIS.	2.05	1	0
Heart Disease, Ischemic [description not available]	2.93	4	0
Myocardial Ischemia A disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart. The decreased blood flow may be due to narrowing of the coronary arteries (CORONARY ARTERY DISEASE), to obstruction by a thrombus (CORONARY THROMBOSIS), or less commonly, to diffuse narrowing of arterioles and other small vessels within the heart. Severe interruption of the blood supply to the myocardial tissue may result in necrosis of cardiac muscle (MYOCARDIAL INFARCTION).	2.93	4	0
Disease, Pulmonary [description not available]	2.98	1	0
Benign Neoplasms [description not available]	2.98	1	0
Cardiovascular Diseases Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM.	2.98	1	0
Lung Diseases Pathological processes involving any part of the LUNG.	2.98	1	0
Neoplasms New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms.	2.98	1	0
Absence Status [description not available]	2.45	2	0
Status Epilepticus A prolonged seizure or seizures repeated frequently enough to prevent recovery between episodes occurring over a period of 20-30 minutes. The most common subtype is generalized tonic-clonic status epilepticus, a potentially fatal condition associated with neuronal injury and respiratory and metabolic dysfunction. Nonconvulsive forms include petit mal status and complex partial status, which may manifest as behavioral disturbances. Simple partial status epilepticus consists of persistent motor, sensory, or autonomic seizures that do not impair cognition (see also EPILEPSIA PARTIALIS CONTINUA). Subclinical status epilepticus generally refers to seizures occurring in an unresponsive or comatose individual in the absence of overt signs of seizure activity. (From N Engl J Med 1998 Apr 2;338(14):970-6; Neurologia 1997 Dec;12 Suppl 6:25-30)	2.45	2	0
Amnesia-Memory Loss [description not available]	2.98	1	0
Amnesia Pathologic partial or complete loss of the ability to recall past experiences (AMNESIA, RETROGRADE) or to form new memories (AMNESIA, ANTEROGRADE). This condition may be of organic or psychologic origin. Organic forms of amnesia are usually associated with dysfunction of the DIENCEPHALON or HIPPOCAMPUS. (From Adams et al., Principles of Neurology, 6th ed, pp426-7)	2.98	1	0
Adjuvant Arthritis [description not available]	2.06	1	0
Systolic Heart Failure [description not available]	3.46	1	1
Heart Failure, Systolic Heart failure caused by abnormal myocardial contraction during SYSTOLE leading to defective cardiac emptying.	3.46	1	1
47,XX,+21 [description not available]	2.98	1	0
Chromosomal Triplication [description not available]	2.98	1	0
Down Syndrome A chromosome disorder associated either with an extra chromosome 21 or an effective trisomy for chromosome 21. Clinical manifestations include hypotonia, short stature, brachycephaly, upslanting palpebral fissures, epicanthus, Brushfield spots on the iris, protruding tongue, small ears, short, broad hands, fifth finger clinodactyly, Simian crease, and moderate to severe INTELLECTUAL DISABILITY. Cardiac and gastrointestinal malformations, a marked increase in the incidence of LEUKEMIA, and the early onset of ALZHEIMER DISEASE are also associated with this condition. Pathologic features include the development of NEUROFIBRILLARY TANGLES in neurons and the deposition of AMYLOID BETA-PROTEIN, similar to the pathology of ALZHEIMER DISEASE. (Menkes, Textbook of Child Neurology, 5th ed, p213)	2.98	1	0
Adenoma Sebaceum Facial ANGIOFIBROMA in tuberous sclerosis	2.07	1	0
Tuberous Sclerosis Autosomal dominant neurocutaneous syndrome classically characterized by MENTAL RETARDATION; EPILEPSY; and skin lesions (e.g., adenoma sebaceum and hypomelanotic macules). There is, however, considerable heterogeneity in the neurologic manifestations. It is also associated with cortical tuber and HAMARTOMAS formation throughout the body, especially the heart, kidneys, and eyes. Mutations in two loci TSC1 and TSC2 that encode hamartin and tuberin, respectively, are associated with the disease.	2.07	1	0
Critical Illness A disease or state in which death is possible or imminent.	2.99	1	0
Autosomal Dominant Juvenile Parkinson Disease [description not available]	2.72	3	0
Parkinsonian Disorders A group of disorders which feature impaired motor control characterized by bradykinesia, MUSCLE RIGIDITY; TREMOR; and postural instability. Parkinsonian diseases are generally divided into primary parkinsonism (see PARKINSON DISEASE), secondary parkinsonism (see PARKINSON DISEASE, SECONDARY) and inherited forms. These conditions are associated with dysfunction of dopaminergic or closely related motor integration neuronal pathways in the BASAL GANGLIA.	2.72	3	0
Aging The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.	6.44	16	1
Recrudescence [description not available]	2.4	2	0
Craniocerebral Injuries [description not available]	2.01	1	0
Aqueductal Stenosis [description not available]	2.01	1	0
Craniocerebral Trauma Traumatic injuries involving the cranium and intracranial structures (i.e., BRAIN; CRANIAL NERVES; MENINGES; and other structures). Injuries may be classified by whether or not the skull is penetrated (i.e., penetrating vs. nonpenetrating) or whether there is an associated hemorrhage.	2.01	1	0
Dementia Praecox [description not available]	4.07	3	1
Schizophrenia A severe emotional disorder of psychotic depth characteristically marked by a retreat from reality with delusion formation, HALLUCINATIONS, emotional disharmony, and regressive behavior.	4.07	3	1
Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.	3.08	5	0
Autonomic Failure, Progressive [description not available]	2.42	2	0
Tachyarrhythmia [description not available]	9.98	12	9
Tachycardia Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.	9.98	12	9
Neurally Mediated Faint [description not available]	9.62	9	9
Symptom Cluster [description not available]	9.82	10	10
Syndrome A characteristic symptom complex.	9.82	10	10
Akinetic-Rigid Variant of Huntington Disease [description not available]	2.42	2	0
Huntington Disease A familial disorder inherited as an autosomal dominant trait and characterized by the onset of progressive CHOREA and DEMENTIA in the fourth or fifth decade of life. Common initial manifestations include paranoia; poor impulse control; DEPRESSION; HALLUCINATIONS; and DELUSIONS. Eventually intellectual impairment; loss of fine motor control; ATHETOSIS; and diffuse chorea involving axial and limb musculature develops, leading to a vegetative state within 10-15 years of disease onset. The juvenile variant has a more fulminant course including SEIZURES; ATAXIA; dementia; and chorea. (From Adams et al., Principles of Neurology, 6th ed, pp1060-4)	2.42	2	0
Polyarthritis [description not available]	2.02	1	0
Arthritis Acute or chronic inflammation of JOINTS.	2.02	1	0
Drop Attack [description not available]	4.72	2	1
Syncope A transient loss of consciousness and postural tone caused by diminished blood flow to the brain (i.e., BRAIN ISCHEMIA). Presyncope refers to the sensation of lightheadedness and loss of strength that precedes a syncopal event or accompanies an incomplete syncope. (From Adams et al., Principles of Neurology, 6th ed, pp367-9)	4.72	2	1
Chemical Dependence [description not available]	2.01	1	0
Substance-Related Disorders Disorders related to substance use or abuse.	2.01	1	0
Embryopathies [description not available]	2.02	1	0
Apoplexy [description not available]	2.94	1	0
Stroke A group of pathological conditions characterized by sudden, non-convulsive loss of neurological function due to BRAIN ISCHEMIA or INTRACRANIAL HEMORRHAGES. Stroke is classified by the type of tissue NECROSIS, such as the anatomic location, vasculature involved, etiology, age of the affected individual, and hemorrhagic vs. non-hemorrhagic nature. (From Adams et al., Principles of Neurology, 6th ed, pp777-810)	2.94	1	0
Cushing's Syndrome [description not available]	2.03	1	0
Cushing Syndrome A condition caused by prolonged exposure to excess levels of cortisol (HYDROCORTISONE) or other GLUCOCORTICOIDS from endogenous or exogenous sources. It is characterized by upper body OBESITY; OSTEOPOROSIS; HYPERTENSION; DIABETES MELLITUS; HIRSUTISM; AMENORRHEA; and excess body fluid. Endogenous Cushing syndrome or spontaneous hypercortisolism is divided into two groups, those due to an excess of ADRENOCORTICOTROPIN and those that are ACTH-independent.	2.03	1	0
ALS - Amyotrophic Lateral Sclerosis [description not available]	2.03	1	0
Amyotrophic Lateral Sclerosis A degenerative disorder affecting upper MOTOR NEURONS in the brain and lower motor neurons in the brain stem and SPINAL CORD. Disease onset is usually after the age of 50 and the process is usually fatal within 3 to 6 years. Clinical manifestations include progressive weakness, atrophy, FASCICULATION, hyperreflexia, DYSARTHRIA, dysphagia, and eventual paralysis of respiratory function. Pathologic features include the replacement of motor neurons with fibrous ASTROCYTES and atrophy of anterior SPINAL NERVE ROOTS and corticospinal tracts. (From Adams et al., Principles of Neurology, 6th ed, pp1089-94)	2.03	1	0
Altitude Hypoxia Low ambient oxygen tension associated with ALTITUDE.	2.03	1	0
Altitude Sickness Multiple symptoms associated with reduced oxygen at high ALTITUDE.	2.03	1	0
Panic Attacks [description not available]	3.42	1	1
Panic Disorder A type of anxiety disorder characterized by unexpected panic attacks that last minutes or, rarely, hours. Panic attacks begin with intense apprehension, fear or terror and, often, a feeling of impending doom. Symptoms experienced during a panic attack include dyspnea or sensations of being smothered; dizziness, loss of balance or faintness; choking sensations; palpitations or accelerated heart rate; shakiness; sweating; nausea or other form of abdominal distress; depersonalization or derealization; paresthesias; hot flashes or chills; chest discomfort or pain; fear of dying and fear of not being in control of oneself or going crazy. Agoraphobia may also develop. Similar to other anxiety disorders, it may be inherited as an autosomal dominant trait.	3.42	1	1
Absence Seizure [description not available]	2.68	3	0
Seizures Clinical or subclinical disturbances of cortical function due to a sudden, abnormal, excessive, and disorganized discharge of brain cells. Clinical manifestations include abnormal motor, sensory and psychic phenomena. Recurrent seizures are usually referred to as EPILEPSY or seizure disorder.	2.68	3	0
Arrhythmia [description not available]	3.61	3	0
Cardiovascular Stroke [description not available]	2.68	3	0
Arrhythmias, Cardiac Any disturbances of the normal rhythmic beating of the heart or MYOCARDIAL CONTRACTION. Cardiac arrhythmias can be classified by the abnormalities in HEART RATE, disorders of electrical impulse generation, or impulse conduction.	3.61	3	0
Myocardial Infarction NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION).	2.68	3	0
Dominant Hereditary Sensory Neuropathy, Type III [description not available]	2.42	2	0
Dysautonomia, Familial An autosomal disorder of the peripheral and autonomic nervous systems limited to individuals of Ashkenazic Jewish descent. Clinical manifestations are present at birth and include diminished lacrimation, defective thermoregulation, orthostatic hypotension (HYPOTENSION, ORTHOSTATIC), fixed pupils, excessive SWEATING, loss of pain and temperature sensation, and absent reflexes. Pathologic features include reduced numbers of small diameter peripheral nerve fibers and autonomic ganglion neurons. (From Adams et al., Principles of Neurology, 6th ed, p1348; Nat Genet 1993;4(2):160-4)	2.42	2	0
Central Hypothyroidism [description not available]	1.96	1	0
Hypothyroidism A syndrome that results from abnormally low secretion of THYROID HORMONES from the THYROID GLAND, leading to a decrease in BASAL METABOLIC RATE. In its most severe form, there is accumulation of MUCOPOLYSACCHARIDES in the SKIN and EDEMA, known as MYXEDEMA. It may be primary or secondary due to other pituitary disease, or hypothalamic dysfunction.	1.96	1	0
Depression, Endogenous [description not available]	6.32	11	4
Depressive Disorder An affective disorder manifested by either a dysphoric mood or loss of interest or pleasure in usual activities. The mood disturbance is prominent and relatively persistent.	6.32	11	4
Adrenal Cancer [description not available]	3.68	10	0
Pheochromocytoma, Extra-Adrenal [description not available]	3.68	10	0
Pheochromocytoma A usually benign, well-encapsulated, lobular, vascular tumor of chromaffin tissue of the ADRENAL MEDULLA or sympathetic paraganglia. The cardinal symptom, reflecting the increased secretion of EPINEPHRINE and NOREPINEPHRINE, is HYPERTENSION, which may be persistent or intermittent. During severe attacks, there may be HEADACHE; SWEATING, palpitation, apprehension, TREMOR; PALLOR or FLUSHING of the face, NAUSEA and VOMITING, pain in the CHEST and ABDOMEN, and paresthesias of the extremities. The incidence of malignancy is as low as 5% but the pathologic distinction between benign and malignant pheochromocytomas is not clear. (Dorland, 27th ed; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1298)	3.68	10	0
Coronary Heart Disease [description not available]	3.47	8	0
Coronary Disease An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.	3.47	8	0
Anorexia Nervosa An eating disorder that is characterized by the lack or loss of APPETITE, known as ANOREXIA. Other features include excess fear of becoming OVERWEIGHT; BODY IMAGE disturbance; significant WEIGHT LOSS; refusal to maintain minimal normal weight; and AMENORRHEA. This disorder occurs most frequently in adolescent females. (APA, Thesaurus of Psychological Index Terms, 1994)	1.96	1	0
Affective Psychosis, Bipolar [description not available]	2.37	2	0
Bipolar Disorder A major affective disorder marked by severe mood swings (manic or major depressive episodes) and a tendency to remission and recurrence.	2.37	2	0
Adipocere [description not available]	1.96	1	0
Muscle Contraction A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.	3.06	5	0
Fetal Growth Restriction [description not available]	1.96	1	0
Fetal Growth Retardation Failure of a FETUS to attain expected GROWTH.	1.96	1	0
Adenocarcinoma Of Kidney [description not available]	1.99	1	0
Cancer of Kidney [description not available]	2.39	2	0
Carcinoma, Renal Cell A heterogeneous group of sporadic or hereditary carcinoma derived from cells of the KIDNEYS. There are several subtypes including the clear cells, the papillary, the chromophobe, the collecting duct, the spindle cells (sarcomatoid), or mixed cell-type carcinoma.	1.99	1	0
Kidney Neoplasms Tumors or cancers of the KIDNEY.	2.39	2	0
Encephalopathy, Hepatic [description not available]	1.98	1	0
Hepatic Encephalopathy A syndrome characterized by central nervous system dysfunction in association with LIVER FAILURE, including portal-systemic shunts. Clinical features include lethargy and CONFUSION (frequently progressing to COMA); ASTERIXIS; NYSTAGMUS, PATHOLOGIC; brisk oculovestibular reflexes; decorticate and decerebrate posturing; MUSCLE SPASTICITY; and bilateral extensor plantar reflexes (see REFLEX, BABINSKI). ELECTROENCEPHALOGRAPHY may demonstrate triphasic waves. (From Adams et al., Principles of Neurology, 6th ed, pp1117-20; Plum & Posner, Diagnosis of Stupor and Coma, 3rd ed, p222-5)	1.98	1	0
Aggression Behavior which may be manifested by destructive and attacking action which is verbal or physical, by covert attitudes of hostility or by obstructionism.	1.98	1	0
Cutis Elastica [description not available]	2.9	1	0
Ehlers-Danlos Syndrome A heterogeneous group of autosomally inherited COLLAGEN DISEASES caused by defects in the synthesis or structure of FIBRILLAR COLLAGEN. There are numerous subtypes: classical, hypermobility, vascular, and others. Common clinical features include hyperextensible skin and joints, skin fragility and reduced wound healing capability.	2.9	1	0
Ventricular Fibrillation A potentially lethal cardiac arrhythmia that is characterized by uncoordinated extremely rapid firing of electrical impulses (400-600/min) in HEART VENTRICLES. Such asynchronous ventricular quivering or fibrillation prevents any effective cardiac output and results in unconsciousness (SYNCOPE). It is one of the major electrocardiographic patterns seen with CARDIAC ARREST.	1.98	1	0
Cardiac Death [description not available]	1.99	1	0
Delayed Hypersensitivity [description not available]	1.98	1	0
Gall Bladder Diseases [description not available]	4.29	1	1
Bleeding [description not available]	1.99	1	0
Fasting Hypoglycemia HYPOGLYCEMIA expressed in the postabsorptive state, after prolonged FASTING, or an overnight fast.	2.69	3	0
Hemorrhage Bleeding or escape of blood from a vessel.	1.99	1	0
Hypoglycemia A syndrome of abnormally low BLOOD GLUCOSE level. Clinical hypoglycemia has diverse etiologies. Severe hypoglycemia eventually lead to glucose deprivation of the CENTRAL NERVOUS SYSTEM resulting in HUNGER; SWEATING; PARESTHESIA; impaired mental function; SEIZURES; COMA; and even DEATH.	2.69	3	0
Birth Weight The mass or quantity of heaviness of an individual at BIRTH. It is expressed by units of pounds or kilograms.	3.78	2	1
Infantile Respiratory Distress Syndrome [description not available]	3.79	2	1
Cardiovascular Pregnancy Complications [description not available]	3.78	2	1
Respiratory Distress Syndrome, Newborn A condition of the newborn marked by DYSPNEA with CYANOSIS, heralded by such prodromal signs as dilatation of the alae nasi, expiratory grunt, and retraction of the suprasternal notch or costal margins, mostly frequently occurring in premature infants, children of diabetic mothers, and infants delivered by cesarean section, and sometimes with no apparent predisposing cause.	3.79	2	1
Anesthesia A state characterized by loss of feeling or sensation. This depression of nerve function is usually the result of pharmacologic action and is induced to allow performance of surgery or other painful procedures.	2.9	4	0
Left Ventricular Hypertrophy [description not available]	2	1	0
Hypertrophy, Left Ventricular Enlargement of the LEFT VENTRICLE of the heart. This increase in ventricular mass is attributed to sustained abnormal pressure or volume loads and is a contributor to cardiovascular morbidity and mortality.	2	1	0
Brain Swelling [description not available]	2	1	0
Brain Edema Increased intracellular or extracellular fluid in brain tissue. Cytotoxic brain edema (swelling due to increased intracellular fluid) is indicative of a disturbance in cell metabolism, and is commonly associated with hypoxic or ischemic injuries (see HYPOXIA, BRAIN). An increase in extracellular fluid may be caused by increased brain capillary permeability (vasogenic edema), an osmotic gradient, local blockages in interstitial fluid pathways, or by obstruction of CSF flow (e.g., obstructive HYDROCEPHALUS). (From Childs Nerv Syst 1992 Sep; 8(6):301-6)	2	1	0
Diathesis [description not available]	2	1	0
Extrasystole, Ventricular [description not available]	2	1	0
Auricular Fibrillation [description not available]	2	1	0
Atrial Fibrillation Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.	2	1	0
Tachycardia, Supraventricular A generic expression for any tachycardia that originates above the BUNDLE OF HIS.	2	1	0
Nausea An unpleasant sensation in the stomach usually accompanied by the urge to vomit. Common causes are early pregnancy, sea and motion sickness, emotional stress, intense pain, food poisoning, and various enteroviruses.	3.38	1	1
Choreoathetosis Self-Mutilation Hyperuricemia Syndrome [description not available]	2	1	0
Lesch-Nyhan Syndrome An inherited disorder transmitted as a sex-linked trait and caused by a deficiency of an enzyme of purine metabolism; HYPOXANTHINE PHOSPHORIBOSYLTRANSFERASE. Affected individuals are normal in the first year of life and then develop psychomotor retardation, extrapyramidal movement disorders, progressive spasticity, and seizures. Self-destructive behaviors such as biting of fingers and lips are seen frequently. Intellectual impairment may also occur but is typically not severe. Elevation of uric acid in the serum leads to the development of renal calculi and gouty arthritis. (Menkes, Textbook of Child Neurology, 5th ed, pp127)	2	1	0
Hyperglycemia, Postprandial Abnormally high BLOOD GLUCOSE level after a meal.	2.69	3	0
Hyperglycemia Abnormally high BLOOD GLUCOSE level.	2.69	3	0
Cardiac Arrest, Sudden [description not available]	2	1	0
Death, Sudden, Cardiac Unexpected rapid natural death due to cardiovascular collapse within one hour of initial symptoms. It is usually caused by the worsening of existing heart diseases. The sudden onset of symptoms, such as CHEST PAIN and CARDIAC ARRHYTHMIAS, particularly VENTRICULAR TACHYCARDIA, can lead to the loss of consciousness and cardiac arrest followed by biological death. (from Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine, 7th ed., 2005)	2	1	0
Deficiency, Magnesium [description not available]	2	1	0
Magnesium Deficiency A nutritional condition produced by a deficiency of magnesium in the diet, characterized by anorexia, nausea, vomiting, lethargy, and weakness. Symptoms are paresthesias, muscle cramps, irritability, decreased attention span, and mental confusion, possibly requiring months to appear. Deficiency of body magnesium can exist even when serum values are normal. In addition, magnesium deficiency may be organ-selective, since certain tissues become deficient before others. (Harrison's Principles of Internal Medicine, 12th ed, p1936)	2	1	0
Dizzyness [description not available]	3.39	1	1
Dizziness An imprecise term which may refer to a sense of spatial disorientation, motion of the environment, or lightheadedness.	3.39	1	1
Shock, Cardiogenic Shock resulting from diminution of cardiac output in heart disease.	1.95	1	0
Anterior Circulation Transient Ischemic Attack [description not available]	2.38	2	0
Ischemic Attack, Transient Brief reversible episodes of focal, nonconvulsive ischemic dysfunction of the brain having a duration of less than 24 hours, and usually less than one hour, caused by transient thrombotic or embolic blood vessel occlusion or stenosis. Events may be classified by arterial distribution, temporal pattern, or etiology (e.g., embolic vs. thrombotic). (From Adams et al., Principles of Neurology, 6th ed, pp814-6)	2.38	2	0
Female Genital Diseases [description not available]	3.36	1	1
Genital Diseases, Female Pathological processes involving the female reproductive tract (GENITALIA, FEMALE).	3.36	1	1
Fetal Distress A nonreassuring fetal status (NRFS) indicating that the FETUS is compromised (American College of Obstetricians and Gynecologists 1988). It can be identified by sub-optimal values in FETAL HEART RATE; oxygenation of FETAL BLOOD; and other parameters.	1.98	1	0
Cardiac Output, Low A state of subnormal or depressed cardiac output at rest or during stress. It is a characteristic of CARDIOVASCULAR DISEASES, including congenital, valvular, rheumatic, hypertensive, coronary, and cardiomyopathic. The serious form of low cardiac output is characterized by marked reduction in STROKE VOLUME, and systemic vasoconstriction resulting in cold, pale, and sometimes cyanotic extremities.	2.89	1	0
Decerebrate Posturing [description not available]	1.97	1	0
Adenocarcinoma, Basal Cell [description not available]	1.97	1	0
Adenocarcinoma A malignant epithelial tumor with a glandular organization.	1.97	1	0
Cardiac Hypertrophy Enlargement of the HEART due to chamber HYPERTROPHY, an increase in wall thickness without an increase in the number of cells (MYOCYTES, CARDIAC). It is the result of increase in myocyte size, mitochondrial and myofibrillar mass, as well as changes in extracellular matrix.	1.97	1	0
Cardiomegaly Enlargement of the HEART, usually indicated by a cardiothoracic ratio above 0.50. Heart enlargement may involve the right, the left, or both HEART VENTRICLES or HEART ATRIA. Cardiomegaly is a nonspecific symptom seen in patients with chronic systolic heart failure (HEART FAILURE) or several forms of CARDIOMYOPATHIES.	1.97	1	0
Cirrhosis, Liver [description not available]	1.97	1	0
Ascites Accumulation or retention of free fluid within the peritoneal cavity.	1.97	1	0
Liver Cirrhosis Liver disease in which the normal microcirculation, the gross vascular anatomy, and the hepatic architecture have been variably destroyed and altered with fibrous septa surrounding regenerated or regenerating parenchymal nodules.	1.97	1	0
Algodystrophic Syndrome [description not available]	2.89	1	0
Reflex Sympathetic Dystrophy A syndrome characterized by severe burning pain in an extremity accompanied by sudomotor, vasomotor, and trophic changes in bone without an associated specific nerve injury. This condition is most often precipitated by trauma to soft tissue or nerve complexes. The skin over the affected region is usually erythematous and demonstrates hypersensitivity to tactile stimuli and erythema. (Adams et al., Principles of Neurology, 6th ed, p1360; Pain 1995 Oct;63(1):127-33)	2.89	1	0
Muscle Relaxation That phase of a muscle twitch during which a muscle returns to a resting position.	1.97	1	0
Polycystic Ovarian Syndrome [description not available]	1.97	1	0
Polycystic Ovary Syndrome A complex disorder characterized by infertility, HIRSUTISM; OBESITY; and various menstrual disturbances such as OLIGOMENORRHEA; AMENORRHEA; ANOVULATION. Polycystic ovary syndrome is usually associated with bilateral enlarged ovaries studded with atretic follicles, not with cysts. The term, polycystic ovary, is misleading.	1.97	1	0
Action Tremor [description not available]	1.97	1	0
Tremor Cyclical movement of a body part that can represent either a physiologic process or a manifestation of disease. Intention or action tremor, a common manifestation of CEREBELLAR DISEASES, is aggravated by movement. In contrast, resting tremor is maximal when there is no attempt at voluntary movement, and occurs as a relatively frequent manifestation of PARKINSON DISEASE.	1.97	1	0
Alcohol Abuse [description not available]	1.97	1	0
Alcoholism A primary, chronic disease with genetic, psychosocial, and environmental factors influencing its development and manifestations. The disease is often progressive and fatal. It is characterized by impaired control over drinking, preoccupation with the drug alcohol, use of alcohol despite adverse consequences, and distortions in thinking, most notably denial. Each of these symptoms may be continuous or periodic. (Morse & Flavin for the Joint Commission of the National Council on Alcoholism and Drug Dependence and the American Society of Addiction Medicine to Study the Definition and Criteria for the Diagnosis of Alcoholism: in JAMA 1992;268:1012-4)	1.97	1	0
African Sleeping Sickness [description not available]	1.97	1	0
Trypanosomiasis, African A disease endemic among people and animals in Central Africa. It is caused by various species of trypanosomes, particularly T. gambiense and T. rhodesiense. Its second host is the TSETSE FLY. Involvement of the central nervous system produces African sleeping sickness. Nagana is a rapidly fatal trypanosomiasis of horses and other animals.	1.97	1	0
Necrosis The death of cells in an organ or tissue due to disease, injury or failure of the blood supply.	1.97	1	0
Nervous System Disorders [description not available]	3.29	2	0
Nervous System Diseases Diseases of the central and peripheral nervous system. This includes disorders of the brain, spinal cord, cranial nerves, peripheral nerves, nerve roots, autonomic nervous system, neuromuscular junction, and muscle.	3.29	2	0
Affective Disorders [description not available]	3.36	1	1
Behavior Disorders [description not available]	3.36	1	1
Mental Disorders Psychiatric illness or diseases manifested by breakdowns in the adaptational process expressed primarily as abnormalities of thought, feeling, and behavior producing either distress or impairment of function.	3.36	1	1
Mood Disorders Those disorders that have a disturbance in mood as their predominant feature.	3.36	1	1
Chronic Kidney Failure [description not available]	1.97	1	0
Kidney Failure, Chronic The end-stage of CHRONIC RENAL INSUFFICIENCY. It is characterized by the severe irreversible kidney damage (as measured by the level of PROTEINURIA) and the reduction in GLOMERULAR FILTRATION RATE to less than 15 ml per min (Kidney Foundation: Kidney Disease Outcome Quality Initiative, 2002). These patients generally require HEMODIALYSIS or KIDNEY TRANSPLANTATION.	1.97	1	0
Cardiomyopathy, Hypertrophic Obstructive [description not available]	1.97	1	0
Cardiomyopathy, Hypertrophic A form of CARDIAC MUSCLE disease, characterized by left and/or right ventricular hypertrophy (HYPERTROPHY, LEFT VENTRICULAR; HYPERTROPHY, RIGHT VENTRICULAR), frequent asymmetrical involvement of the HEART SEPTUM, and normal or reduced left ventricular volume. Risk factors include HYPERTENSION; AORTIC STENOSIS; and gene MUTATION; (FAMILIAL HYPERTROPHIC CARDIOMYOPATHY).	1.97	1	0
Abdominal Epilepsy [description not available]	1.97	1	0
Epilepsies, Partial Conditions characterized by recurrent paroxysmal neuronal discharges which arise from a focal region of the brain. Partial seizures are divided into simple and complex, depending on whether consciousness is unaltered (simple partial seizure) or disturbed (complex partial seizure). Both types may feature a wide variety of motor, sensory, and autonomic symptoms. Partial seizures may be classified by associated clinical features or anatomic location of the seizure focus. A secondary generalized seizure refers to a partial seizure that spreads to involve the brain diffusely. (From Adams et al., Principles of Neurology, 6th ed, pp317)	1.97	1	0
Cruveilhier-Baumgarten Syndrome Liver cirrhosis with intrahepatic portal obstruction, HYPERTENSION, and patent UMBILICAL VEINS.	1.97	1	0
Cirrhoses, Experimental Liver [description not available]	1.97	1	0
Hypertension, Portal Abnormal increase of resistance to blood flow within the hepatic PORTAL SYSTEM, frequently seen in LIVER CIRRHOSIS and conditions with obstruction of the PORTAL VEIN.	1.97	1	0
Autoimmune Diabetes [description not available]	1.97	1	0
Asymmetric Diabetic Proximal Motor Neuropathy [description not available]	1.97	1	0
Diabetes Mellitus, Type 1 A subtype of DIABETES MELLITUS that is characterized by INSULIN deficiency. It is manifested by the sudden onset of severe HYPERGLYCEMIA, rapid progression to DIABETIC KETOACIDOSIS, and DEATH unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence.	1.97	1	0
Diabetic Neuropathies Peripheral, autonomic, and cranial nerve disorders that are associated with DIABETES MELLITUS. These conditions usually result from diabetic microvascular injury involving small blood vessels that supply nerves (VASA NERVORUM). Relatively common conditions which may be associated with diabetic neuropathy include third nerve palsy (see OCULOMOTOR NERVE DISEASES); MONONEUROPATHY; mononeuropathy multiplex; diabetic amyotrophy; a painful POLYNEUROPATHY; autonomic neuropathy; and thoracoabdominal neuropathy. (From Adams et al., Principles of Neurology, 6th ed, p1325)	1.97	1	0
Hyperprolactinaemia [description not available]	1.97	1	0
Hyperprolactinemia Increased levels of PROLACTIN in the BLOOD, which may be associated with AMENORRHEA and GALACTORRHEA. Relatively common etiologies include PROLACTINOMA, medication effect, KIDNEY FAILURE, granulomatous diseases of the PITUITARY GLAND, and disorders which interfere with the hypothalamic inhibition of prolactin release. Ectopic (non-pituitary) production of prolactin may also occur. (From Joynt, Clinical Neurology, 1992, Ch36, pp77-8)	6.97	1	0
Alcohol Drinking Behaviors associated with the ingesting of ALCOHOLIC BEVERAGES, including social drinking.	1.96	1	0

3,4-dihydroxyphenylglycol

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Research Demand Index: 18.18

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