trimethaphan profile

Trimethaphan is a ganglionic blocker that acts by competitively antagonizing acetylcholine at nicotinic receptors in autonomic ganglia. It is synthesized by reacting 3-(2,6-dimethylpiperidino)propan-1-ol with 1-bromo-2-chloroethane. Trimethaphan has a rapid onset of action and a short duration of action, making it suitable for use in the management of hypertensive emergencies. Trimethaphan is studied for its potential use in the treatment of various conditions, including hypertensive crises, pheochromocytoma, and acute aortic dissection. It is also being investigated for its potential use in the prevention of intracerebral hemorrhage.'

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. [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

trimethaphan : A complex heterocyclic sulfonium compound with an imidazolium core, used to treat hypertension. [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	23576
CHEMBL ID	1201329
CHEBI ID	9728
MeSH ID	M0021990

Synonym
PDSP1_000122
trimethaphan
7187-66-8
C07174
DB01116
trimetaphanum
thimethaphan
trimetaphan
PDSP2_000122
1,3-dibenzyl-2-oxodecahydrothieno[1',2':1,2]thieno[3,4-d]imidazol-5-ium
CHEBI:9728 ,
thieno(1',2':1,2)thieno(3,4-d)imidazol-5-ium, decahydro-2-oxo-1,3-bis(phenylmethyl)-
trimethaphan ion
trimethaphan cation
CHEMBL1201329
bdbm82545
cas_441310
nsc_441310
unii-6g8x656t45
6g8x656t45 ,
thieno(1',2':1,2)thieno(3,4-d)imidazol-5-ium, decahydro-2-oxo-1,3-bis(phenylmethyl)- (van)
hsdb 7676
1,3-dibenzyl-2-oxodecahydrothieno(1',2':1,2)thieno(3,4-d)imidazol-5-ium
trimetaphan [who-dd]
7728-39-4
thieno(1',2':1,2)thieno(3,4-d)imidazolium, decahydro-2-oxo-1,3-bis(phenylmethyl)-
DTXSID8043787
3,5-dibenzyl-4-oxo-8$l^{4}-thia-3,5-diazatricyclo[6.3.0.0^{2,6}]undecan-8-ylium
3,5-dibenzyl-8-thionia-3,5-diazatricyclo[6.3.0.02,6]undecan-4-one
Q9361596

Excerpt	Reference	Relevance
"Trimethaphan camsylate is a potent antihypertensive drug used to induce systemic arterial hypotension in patients undergoing major surgery and to treat severe systemic hypertension. "	( Ultra-high dose trimethaphan in an infant with severe hypertension. Hammer, GB, 1996)	2.08
"Trimethaphan was found to be a potent noncompetitive inhibitor of pseudocholinesterase (KI = 0.24 micronM)."	( Effects of trimethaphan and sodium nitroprusside on hydrolysis of succinylcholine in vitro. Lanks, KW; Sklar, GS, 1977)	1.37

Excerpt	Reference	Relevance
"Trimethaphan does not increase CSF pressure."	( Trimethaphan versus sodium nitroprusside for the control of proximal hypertension during thoracic aortic cross-clamping: the effects on spinal cord ischemia. Bermudez, R; D'Ambra, T; Eide, TR; Lebowitz, P; Levine, D; Newman, SB; Schiff, GA; Simpson, JI, 1996)	2.46

Excerpt	Reference	Relevance
"Treatment with trimethaphan (10(-4)-10(-3)M) protected alpha-adrenergic receptors from persistent blockade by phenoxybenzamine."	( Trimethaphan is a direct arterial vasodilator and an alpha-adrenoceptor antagonist. Harioka, T; Hatano, Y; Mori, K; Toda, N, 1984)	2.05

Excerpt	Reference	Relevance
"The effects of prostaglandin E1 (PGE1) and trimetaphan (TMP) on the plasma concentrations and derived pharmacokinetic parameters of bupivacaine were studied in 14 women after its epidural administration."	( [Pharmacokinetics of epidurally administered bupivacaine during prostaglandin E1- or trimetaphan-induced hypotension]. Hamakawa, T; Sakimura, S; Takasaki, M; Takeshita, M, 1992)	0.28

Excerpt	Reference	Relevance
"The effect of trimetaphan alone and in combination with pancuronium, tubocurarine or metocurine (dimethyl tubocurarine) has been examined on the rat phrenic nerve diaphragm preparation."	( The neuromuscular blocking effect of trimetaphan alone and in combination with different non-depolarizing muscle relaxants in the rat. Pollard, BJ; van der Spek, AF, 1987)	0.27

Excerpt	Relevance	Reference
" Nitroprusside (15 patients) was associated with a small increase in mean lactate, but at low dosage there was a small decrease."	( Metabolic effects of induced hypotension with trimetaphan and sodium nitroprusside. Drummond, GB; MacRae, WR; Wildsmith, JA, 1979)	0.26
" There was a strict dose-response relationship between duration of ischemia and mortality."	( Forebrain ischemia in the rat. Relation between duration of ischemia, use of adjunctive ganglionic blockade and long-term recovery. Arfors, KE; Gerdin, B; Grøgaard, B, )	0.13
" Cumulative dose-response curves were constructed for 8-OH-DPAT, ipsapirone and clonidine."	( Evidence that the putative 5-HT1A receptor agonists, 8-OH-DPAT and ipsapirone, have a central hypotensive action that differs from that of clonidine in anaesthetised cats. Fozard, JR; Ramage, AG, 1987)	0.27
" The dose-response curves for inhibition of glutamate responses by trimethaphan suggest that trimethaphan is not a competitive glutamate antagonist."	( Trimethaphan as a glutamate inhibitor at the crayfish neuromuscular junction. Ishida, M; Shinozaki, H, 1983)	1.94
" Trimethaphan (10(-4)-10(-3)M) shifted the dose-response curve for norepinephrine in mesenteric arteries to the right, but failed to influence the contractile response to 25 mM KCl."	( Trimethaphan is a direct arterial vasodilator and an alpha-adrenoceptor antagonist. Harioka, T; Hatano, Y; Mori, K; Toda, N, 1984)	2.62
" A readily controllable hypotension was produced with considerable reduction in the dosage of these drugs compared to their used individually."	( Induced hypotension with a mixture of sodium nitroprusside and trimetaphan camsylate. Dale, BA; MacRae, WR; Wildsmith, JA, 1981)	0.26
" The whole-cell dose-response curve suggests that activation of current by ACh increases up to at least 100 microM and that multiple ligand binding steps are involved."	( Activation of nicotinic acetylcholine receptors on cultured Drosophila and other insect neurones. Albert, JL; Lingle, CJ, 1993)	0.29

Role	Description
vasodilator agent	A drug used to cause dilation of the blood vessels.
antihypertensive agent	Any drug used in the treatment of acute or chronic vascular hypertension regardless of pharmacological mechanism.
anaesthesia adjuvant	Any substance that possesses little anaesthetic effect by itself, but which enhances or potentiates the anaesthetic action of other drugs when given at the same time.
nicotinic antagonist	An antagonist at the nicotinic cholinergic receptor.
[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
sulfonium compound
[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]

Timeframe	Studies, This Drug (%)	All Drugs %
pre-1990	663 (78.46)	18.7374
1990's	121 (14.32)	18.2507
2000's	52 (6.15)	29.6817
2010's	9 (1.07)	24.3611
2020's	0 (0.00)	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	61 (6.54%)	5.53%
Reviews	42 (4.50%)	6.00%
Case Studies	32 (3.43%)	4.05%
Observational	0 (0.00%)	0.25%
Other	798 (85.53%)	84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Trial	Phase	Enrollment	Study Type	Start Date	Status
Reduction in Splanchnic Capacitance Contributes to Sympathetically Dependent Hypertension in Autonomic Aim 1 of Rare Diseases Clinical Research Network (RDCRN) Project 2 [NCT02726711]	Phase 1	2 participants (Actual)	Interventional	2016-04-30	Active, not recruiting
Cardiovascular Effects of Angiotensin (1-7) in Essential Hypertension [NCT02245230]	Phase 1	34 participants (Anticipated)	Interventional	2015-01-31	Active, not recruiting
The Autonomic Nervous System, Nitric Oxide and TPA Interactions [NCT01137253]	Phase 1	21 participants (Actual)	Interventional	2010-06-30	Completed
Obesity, Hypertension in African American Women, Neuro-metabolic Mechanism [NCT01122407]	Phase 1	34 participants (Actual)	Interventional	2010-01-31	Completed
Role of Sympathetic Activity and Splanchnic Capacitance in Hypertension [NCT02425566]	Phase 1	12 participants (Anticipated)	Interventional	2015-04-30	Active, not recruiting
Autonomic Nervous System and Chronic Fatigue Syndrome [NCT00580619]	Phase 1	170 participants (Actual)	Interventional	2007-04-30	Completed
The Autonomic Nervous System and Obesity [NCT00179023]	Phase 1	128 participants (Actual)	Interventional	2003-04-30	Completed
The Autonomic Nervous System and the Metabolic Syndrome [NCT00580957]		56 participants (Actual)	Interventional	2008-08-31	Completed
Cardiovascular Regulation: Autonomic/Metabolic Mechanisms PO1 HL56693, Project 4: Cardiovascular Regulation: Autonomic/Metabolic Mechanisms [NCT00178919]		112 participants (Actual)	Interventional	2002-08-31	Completed
Acute Sympathetic Blockade and Endogenous Glucose Production [NCT03028571]	Phase 1	0 participants (Actual)	Interventional	2017-04-17	Withdrawn(stopped due to The investigators decided not to perform the study. No participants have been enrolled.)
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial	Outcome
NCT00178919 (2) [back to overview]	Change in Systolic Blood Pressure
NCT00178919 (2) [back to overview]	Systolic Blood Pressure in Response to Systemic Nitric Oxide Inhibition
NCT00580957 (1) [back to overview]	Insulin Resistance

Intervention	mm Hg (Mean)
Autonomic Failure Patients	43
Hypertensives and Controls	21

Intervention	mm Hg (Mean)
Autonomic Failure Patients	152
Hypertensives and Controls	136

Intervention	mg/kg/min (Mean)
Blocked	3.8
Intact	3.1

Substance	Relationship Strength	Studies	Trials	Classes	Roles
ammonium hydroxide azane : Saturated acyclic nitrogen hydrides having the general formula NnHn+2.	3.38	1	1	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
carbon monoxide Carbon Monoxide: Carbon monoxide (CO). A poisonous colorless, odorless, tasteless gas. It combines with hemoglobin to form carboxyhemoglobin, which has no oxygen carrying capacity. The resultant oxygen deprivation causes headache, dizziness, decreased pulse and respiratory rates, unconsciousness, and death. (From Merck Index, 11th ed). carbon monoxide : A one-carbon compound in which the carbon is joined only to a single oxygen. It is a colourless, odourless, tasteless, toxic gas.	2.36	2	0	carbon oxide; gas molecular entity; one-carbon compound	biomarker; EC 1.9.3.1 (cytochrome c oxidase) inhibitor; human metabolite; ligand; metabolite; mitochondrial respiratory-chain inhibitor; mouse metabolite; neurotoxin; neurotransmitter; P450 inhibitor; probe; signalling molecule; vasodilator agent
choline [no description available]	7.66	3	0	cholines	allergen; Daphnia magna metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter; nutrient; plant metabolite; Saccharomyces cerevisiae metabolite
chlorine chloride : A halide anion formed when chlorine picks up an electron to form an an anion.	2.34	2	0	halide anion; monoatomic chlorine	cofactor; Escherichia coli metabolite; human metabolite
creatine [no description available]	1.94	1	0	glycine derivative; guanidines; zwitterion	geroprotector; human metabolite; mouse metabolite; neuroprotective agent; nutraceutical
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.	4.05	3	1	2-hydroxy monocarboxylic acid	algal metabolite; Daphnia magna metabolite
formaldehyde paraform: polymerized formaldehyde; RN given refers to parent cpd; used in root canal therapy	1.94	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
glycerol Moon: The natural satellite of the planet Earth. It includes the lunar cycles or phases, the lunar month, lunar landscapes, geography, and soil.	1.95	1	0	alditol; triol	algal metabolite; detergent; Escherichia coli metabolite; geroprotector; human metabolite; mouse metabolite; osmolyte; Saccharomyces cerevisiae metabolite; solvent
hydrogen carbonate Bicarbonates: Inorganic salts that contain the -HCO3 radical. They are an important factor in determining the pH of the blood and the concentration of bicarbonate ions is regulated by the kidney. Levels in the blood are an index of the alkali reserve or buffering capacity.. hydrogencarbonate : The carbon oxoanion resulting from the removal of a proton from carbonic acid.	4.58	6	1	carbon oxoanion	cofactor; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite
histamine [no description available]	3.2	6	0	aralkylamino compound; imidazoles	human metabolite; mouse metabolite; neurotransmitter
iodine Iodine: A nonmetallic element of the halogen group that is represented by the atomic symbol I, atomic number 53, and atomic weight of 126.90. It is a nutritionally essential element, especially important in thyroid hormone synthesis. In solution, it has anti-infective properties and is used topically.. diiodine : Molecule comprising two covalently bonded iodine atoms with overall zero charge..	1.93	1	0	diatomic iodine	nutrient
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.	3.79	4	0	hydroxyphenylalanine; non-proteinogenic alpha-amino acid; tyrosine derivative	human metabolite
niacin Niacin: A water-soluble vitamin of the B complex occurring in various animal and plant tissues. It is required by the body for the formation of coenzymes NAD and NADP. It has PELLAGRA-curative, vasodilating, and antilipemic properties.. vitamin B3 : Any member of a group of vitamers that belong to the chemical structural class called pyridines that exhibit biological activity against vitamin B3 deficiency. Vitamin B3 deficiency causes a condition known as pellagra whose symptoms include depression, dermatitis and diarrhea. The vitamers include nicotinic acid and nicotinamide (and their ionized and salt forms).. nicotinic acid : A pyridinemonocarboxylic acid that is pyridine in which the hydrogen at position 3 is replaced by a carboxy group.	2.36	2	0	pyridine alkaloid; pyridinemonocarboxylic acid; vitamin B3	antidote; antilipemic drug; EC 3.5.1.19 (nicotinamidase) inhibitor; Escherichia coli metabolite; human urinary metabolite; metabolite; mouse metabolite; plant metabolite; vasodilator agent
nitrates Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical.	3.05	1	0	monovalent inorganic anion; nitrogen oxoanion; reactive nitrogen species
nitrous oxide Nitrous Oxide: Nitrogen oxide (N2O). A colorless, odorless gas that is used as an anesthetic and analgesic. High concentrations cause a narcotic effect and may replace oxygen, causing death by asphyxia. It is also used as a food aerosol in the preparation of whipping cream.. dinitrogen oxide : A nitrogen oxide consisting of linear unsymmetrical molecules with formula N2O. While it is the most used gaseous anaesthetic in the world, its major commercial use, due to its solubility under pressure in vegetable fats combined with its non-toxicity in low concentrations, is as an aerosol spray propellant and aerating agent for canisters of 'whipped' cream.	11.96	16	2	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
1-propanol 1-Propanol: A colorless liquid made by oxidation of aliphatic hydrocarbons that is used as a solvent and chemical intermediate.. propan-1-ol : The parent member of the class of propan-1-ols that is propane in which a hydrogen of one of the methyl groups is replaced by a hydroxy group.	1.95	1	0	propan-1-ols; short-chain primary fatty alcohol	metabolite; protic solvent
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.	3.77	2	1	2-oxo monocarboxylic acid	cofactor; fundamental metabolite
uric acid Uric Acid: An oxidation product, via XANTHINE OXIDASE, of oxypurines such as XANTHINE and HYPOXANTHINE. It is the final oxidation product of purine catabolism in humans and primates, whereas in most other mammals URATE OXIDASE further oxidizes it to ALLANTOIN.. uric acid : An oxopurine that is the final oxidation product of purine metabolism.. 6-hydroxy-1H-purine-2,8(7H,9H)-dione : A tautomer of uric acid having oxo groups at C-2 and C-8 and a hydroxy group at C-6.. 7,9-dihydro-1H-purine-2,6,8(3H)-trione : An oxopurine in which the purine ring is substituted by oxo groups at positions 2, 6, and 8.	3.37	1	1	uric acid	Escherichia coli metabolite; human metabolite; mouse metabolite
8-hydroxy-2-(di-n-propylamino)tetralin 8-Hydroxy-2-(di-n-propylamino)tetralin: A serotonin 1A-receptor agonist that is used experimentally to test the effects of serotonin.. 8-OH-DPAT : A tetralin substituted at positions 1 and 7 by hydroxy and dipropylamino groups respectively	1.97	1	0	phenols; tertiary amino compound; tetralins	serotonergic antagonist
ibotenic acid Ibotenic Acid: A neurotoxic isoxazole (similar to KAINIC ACID and MUSCIMOL) found in AMANITA mushrooms. It causes motor depression, ataxia, and changes in mood, perceptions and feelings, and is a potent excitatory amino acid agonist.	1.98	1	0	non-proteinogenic alpha-amino acid	neurotoxin
normetanephrine Normetanephrine: A methylated metabolite of norepinephrine that is excreted in the urine and found in certain tissues. It is a marker for tumors.	1.97	1	0	catecholamine
1h-(1,2,4)oxadiazolo(4,3-a)quinoxalin-1-one 1H-(1,2,4)oxadiazolo(4,3-a)quinoxalin-1-one: structure given in first source; inhibits guanylyl cyclase. 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one : A member of the class of oxadiazoloquinoxalines that is 1H-[1,2,4]oxadiazolo[4,3-a]quinoxaline substituted at position 1 by an oxo group.	1.99	1	0	oxadiazoloquinoxaline	EC 4.6.1.2 (guanylate cyclase) inhibitor
aminopropionitrile Aminopropionitrile: Reagent used as an intermediate in the manufacture of beta-alanine and pantothenic acid.	3.04	1	0	aminopropionitrile	antineoplastic agent; antirheumatic drug; collagen cross-linking inhibitor; plant metabolite
4-diphenylacetoxy-1,1-dimethylpiperidinium 4-diphenylacetoxy-1,1-dimethylpiperidinium: muscarinic receptor antagonist; RN given refers to parent cpd; do not confuse abbreviation 4-DAMP with a similar cpd which does not contain dimethyl groups. 4-DAMP(1+) : A quaternary ammonium salt obtained by formal methylation of the tertiary amino function of 4-diphenylacetoxy-N-methylpiperidine.	1.98	1	0	quaternary ammonium ion	cholinergic antagonist; muscarinic antagonist
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.	1.95	1	0	indole-3-acetic acids	drug metabolite; human metabolite; mouse metabolite
acetazolamide Acetazolamide: One of the CARBONIC ANHYDRASE INHIBITORS that is sometimes effective against absence seizures. It is sometimes useful also as an adjunct in the treatment of tonic-clonic, myoclonic, and atonic seizures, particularly in women whose seizures occur or are exacerbated at specific times in the menstrual cycle. However, its usefulness is transient often because of rapid development of tolerance. Its antiepileptic effect may be due to its inhibitory effect on brain carbonic anhydrase, which leads to an increased transneuronal chloride gradient, increased chloride current, and increased inhibition. (From Smith and Reynard, Textbook of Pharmacology, 1991, p337)	3.04	1	0	monocarboxylic acid amide; sulfonamide; thiadiazoles	anticonvulsant; diuretic; EC 4.2.1.1 (carbonic anhydrase) inhibitor
diatrizoic acid Diatrizoate: A commonly used x-ray contrast medium. As DIATRIZOATE MEGLUMINE and as Diatrizoate sodium, it is used for gastrointestinal studies, angiography, and urography.. amidotrizoic acid : A member of the class of benzoic acids that is benzoic acid having iodo substituents at the 2-, 4- and 6-positions and acetamido substituents at the 3- and 5-positions. It is used, mainly as its N-methylglucamine and sodium salts, as an X-ray contrast medium in gastrointestinal studies, angiography, and urography.	2.86	4	0	acetamides; benzoic acids; organoiodine compound	environmental contaminant; radioopaque medium; xenobiotic
theophylline [no description available]	1.96	1	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
amobarbital Amobarbital: A barbiturate with hypnotic and sedative properties (but not antianxiety). Adverse effects are mainly a consequence of dose-related CNS depression and the risk of dependence with continued use is high. (From Martindale, The Extra Pharmacopoeia, 30th ed, p565). amobarbital : A member of the class of barbiturates that is pyrimidine-2,4,6(1H,3H,5H)-trione substituted by a 3-methylbutyl and an ethyl group at position 5. Amobarbital has been shown to exhibit sedative and hypnotic properties.	1.94	1	0	barbiturates
atenolol Atenolol: A cardioselective beta-1 adrenergic blocker possessing properties and potency similar to PROPRANOLOL, but without a negative inotropic effect.. atenolol : An ethanolamine compound having a (4-carbamoylmethylphenoxy)methyl group at the 1-position and an N-isopropyl substituent.	1.98	1	0	ethanolamines; monocarboxylic acid amide; propanolamine	anti-arrhythmia drug; antihypertensive agent; beta-adrenergic antagonist; environmental contaminant; sympatholytic agent; xenobiotic
bethanidine Bethanidine: A guanidinium antihypertensive agent that acts by blocking adrenergic transmission. The precise mode of action is not clear.	3.46	2	0	guanidines	adrenergic antagonist; antihypertensive agent
bupivacaine Bupivacaine: A widely used local anesthetic agent.. 1-butyl-N-(2,6-dimethylphenyl)piperidine-2-carboxamide : A piperidinecarboxamide obtained by formal condensation of the carboxy group of N-butylpipecolic acid with the amino group of 2,6-dimethylaniline.. bupivacaine : A racemate composed of equimolar amounts of dextrobupivacaine and levobupivacaine. Used (in the form of its hydrochloride hydrate) as a local anaesthetic.	2.37	2	0	aromatic amide; piperidinecarboxamide; tertiary amino compound
caffeine [no description available]	1.97	1	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.	1.99	1	0	aromatic ether; nitrile; polyether; tertiary amino compound
camphor, (+-)-isomer [no description available]	2.35	2	0	bornane monoterpenoid; cyclic monoterpene ketone	plant metabolite
chlordiazepoxide Chlordiazepoxide: An anxiolytic benzodiazepine derivative with anticonvulsant, sedative, and amnesic properties. It has also been used in the symptomatic treatment of alcohol withdrawal.. chlordiazepoxide : A benzodiazepine that is 3H-1,4-benzodiazepine 4-oxide substituted by a chloro group at position 7, a phenyl group at position 5 and a methylamino group at position 2.	2.35	2	0	benzodiazepine
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.	8.19	6	0	benzothiadiazine	antihypertensive agent; diuretic
chlorpheniramine Chlorpheniramine: A histamine H1 antagonist used in allergic reactions, hay fever, rhinitis, urticaria, and asthma. It has also been used in veterinary applications. One of the most widely used of the classical antihistaminics, it generally causes less drowsiness and sedation than PROMETHAZINE.. chlorphenamine : A tertiary amino compound that is propylamine which is substituted at position 3 by a pyridin-2-yl group and a p-chlorophenyl group and in which the hydrogens attached to the nitrogen are replaced by methyl groups. A histamine H1 antagonist, it is used to relieve the symptoms of hay fever, rhinitis, urticaria, and asthma.	1.96	1	0	monochlorobenzenes; pyridines; tertiary amino compound	anti-allergic agent; antidepressant; antipruritic drug; H1-receptor antagonist; histamine antagonist; serotonin uptake inhibitor
chlorpromazine Chlorpromazine: The prototypical phenothiazine antipsychotic drug. Like the other drugs in this class chlorpromazine's antipsychotic actions are thought to be due to long-term adaptation by the brain to blocking DOPAMINE RECEPTORS. Chlorpromazine has several other actions and therapeutic uses, including as an antiemetic and in the treatment of intractable hiccup.. chlorpromazine : A substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropanamine moiety.	10.26	10	0	organochlorine compound; phenothiazines; tertiary amine	anticoronaviral agent; antiemetic; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; phenothiazine antipsychotic drug
chlorthalidone Chlorthalidone: A benzenesulfonamide-phthalimidine that tautomerizes to a BENZOPHENONES form. It is considered a thiazide-like diuretic.	1.94	1	0	isoindoles; monochlorobenzenes; sulfonamide
cimetidine Cimetidine: A histamine congener, it competitively inhibits HISTAMINE binding to HISTAMINE H2 RECEPTORS. Cimetidine has a range of pharmacological actions. It inhibits GASTRIC ACID secretion, as well as PEPSIN and GASTRIN output.. cimetidine : A member of the class of guanidines that consists of guanidine carrying a methyl substituent at position 1, a cyano group at position 2 and a 2-{[(5-methyl-1H-imidazol-4-yl)methyl]sulfanyl}ethyl group at position 3. It is a H2-receptor antagonist that inhibits the production of acid in stomach.	1.96	1	0	aliphatic sulfide; guanidines; imidazoles; nitrile	adjuvant; analgesic; anti-ulcer drug; H2-receptor antagonist; P450 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.	8.44	24	1	clonidine; imidazoline
decamethonium decamethonium: RN given refers to parent cpd. decamethonium : A quaternary ammonium ion that is a depolarising muscle relaxant whose structure comprises a decane-1,10-diamine core in which each amino group carries three methyl substituents.	1.96	1	0	quaternary ammonium ion	muscle relaxant; nicotinic acetylcholine receptor agonist
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.	5.04	5	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
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.	4.59	6	1	1,4-benzodiazepinone; organochlorine compound	anticonvulsant; anxiolytic drug; environmental contaminant; sedative; xenobiotic
diazoxide Diazoxide: A benzothiadiazine derivative that is a peripheral vasodilator used for hypertensive emergencies. It lacks diuretic effect, apparently because it lacks a sulfonamide group.. diazoxide : A benzothiadiazine that is the S,S-dioxide of 2H-1,2,4-benzothiadiazine which is substituted at position 3 by a methyl group and at position 7 by chlorine. A peripheral vasodilator, it increases the concentration of glucose in the plasma and inhibits the secretion of insulin by the beta- cells of the pancreas. It is used orally in the management of intractable hypoglycaemia and intravenously in the management of hypertensive emergencies.	13.72	46	0	benzothiadiazine; organochlorine compound; sulfone	antihypertensive agent; beta-adrenergic agonist; bronchodilator agent; cardiotonic drug; diuretic; K-ATP channel agonist; sodium channel blocker; sympathomimetic agent; vasodilator agent
diphenhydramine Diphenhydramine: A histamine H1 antagonist used as an antiemetic, antitussive, for dermatoses and pruritus, for hypersensitivity reactions, as a hypnotic, an antiparkinson, and as an ingredient in common cold preparations. It has some undesired antimuscarinic and sedative effects.. diphenhydramine : An ether that is the benzhydryl ether of 2-(dimethylamino)ethanol. It is a H1-receptor antagonist used as a antipruritic and antitussive drug.. antitussive : An agent that suppresses cough. Antitussives have a central or a peripheral action on the cough reflex, or a combination of both. Compare with expectorants, which are considered to increase the volume of secretions in the respiratory tract, so facilitating their removal by ciliary action and coughing, and mucolytics, which decrease the viscosity of mucus, facilitating its removal by ciliary action and expectoration.	2.63	3	0	ether; tertiary amino compound	anti-allergic agent; antidyskinesia agent; antiemetic; antiparkinson drug; antipruritic drug; antitussive; H1-receptor antagonist; local anaesthetic; muscarinic antagonist; oneirogen; sedative
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.	1.96	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)	1.97	1	0
domperidone Domperidone: A specific blocker of dopamine receptors. It speeds gastrointestinal peristalsis, causes prolactin release, and is used as antiemetic and tool in the study of dopaminergic mechanisms.. domperidone : 1-[3-(Piperidin-1-yl)propyl]-1,3-dihydro-2H-benzimidazol-2-one in which the 4-position of the piperidine ring is substituted by a 5-chloro-1,3-dihydro-2H-benzimidazol-2-on-1-yl group. A dopamine antagonist, it is used as an antiemetic for the short-term treatment of nausea and vomiting, and to control gastrointestinal effects of dopaminergic drugs given in the management of parkinsonism. The free base is used in oral suspensions, while the maleate salt is used in tablet preparations.	1.96	1	0	benzimidazoles; heteroarylpiperidine	antiemetic; dopaminergic antagonist
doxapram Doxapram: A central respiratory stimulant with a brief duration of action. (From Martindale, The Extra Pharmocopoeia, 30th ed, p1225). doxapram : A member of the class of pyrrolidin-2-ones that is N-ethylpyrrolidin-2-one in which both of the hydrogens at the 3 position (adjacent to the carbonyl group) are substituted by phenyl groups, and one of the hydrogens at the 4 position is substituted by a 2-(morpholin-4-yl)ethyl group. A central and respiratory stimulant with a brief duration of action, it is used (generally as the hydrochloride or the hydrochloride hydrate) as a temporary treatment of acute respiratory failure, particularly when superimposed on chronic obstructive pulmonary disease, and of postoperative respiratory depression. It has also been used for treatment of postoperative shivering.	1.94	1	0	morpholines; pyrrolidin-2-ones	central nervous system stimulant
droperidol Droperidol: A butyrophenone with general properties similar to those of HALOPERIDOL. It is used in conjunction with an opioid analgesic such as FENTANYL to maintain the patient in a calm state of neuroleptanalgesia with indifference to surroundings but still able to cooperate with the surgeon. It is also used as a premedicant, as an antiemetic, and for the control of agitation in acute psychoses. (From Martindale, The Extra Pharmacopoeia, 29th ed, p593). droperidol : An organofluorine compound that is haloperidol in which the hydroxy group has been eliminated with the introduction of a double bond in the piperidine ring, and the 4-chlorophenyl group has been replaced by a benzimidazol-2-on-1-yl group. It is used in the management of chemotherapy-induced nausea and vomiting, and in conjunction with an opioid analgesic such as fentanyl to maintain the patient in a calm state of neuroleptanalgesia with indifference to surroundings but still able to cooperate with the surgeon.	2.36	2	0	aromatic ketone; benzimidazoles; organofluorine compound	anaesthesia adjuvant; antiemetic; dopaminergic antagonist; first generation antipsychotic
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.	1.94	1	0	phenols; quaternary ammonium ion	antidote; diagnostic agent; EC 3.1.1.8 (cholinesterase) inhibitor
enflurane Enflurane: An extremely stable inhalation anesthetic that allows rapid adjustments of anesthesia depth with little change in pulse or respiratory rate.. enflurane : An ether in which the oxygen atom is connected to 2-chloro-1,1,2-trifluoroethyl and difluoromethyl groups.	2.88	4	0	ether; organochlorine compound; organofluorine compound	anaesthetic
ethacrynic acid Ethacrynic Acid: A compound that inhibits symport of sodium, potassium, and chloride primarily in the ascending limb of Henle, but also in the proximal and distal tubules. This pharmacological action results in excretion of these ions, increased urinary output, and reduction in extracellular fluid. This compound has been classified as a loop or high ceiling diuretic.. etacrynic acid : An aromatic ether that is phenoxyacetic acid in which the phenyl ring is substituted by chlorines at positions 2 and 3, and by a 2-methylidenebutanoyl group at position 4. It is a loop diuretic used to treat high blood pressure resulting from diseases such as congestive heart failure, liver failure, and kidney failure. It is also a glutathione S-transferase (EC 2.5.1.18) inhibitor.	4.14	5	0	aromatic ether; aromatic ketone; dichlorobenzene; monocarboxylic acid	EC 2.5.1.18 (glutathione transferase) inhibitor; ion transport inhibitor; loop diuretic
ether Ether: A mobile, very volatile, highly flammable liquid used as an inhalation anesthetic and as a solvent for waxes, fats, oils, perfumes, alkaloids, and gums. It is mildly irritating to skin and mucous membranes.. ether : An organooxygen compound with formula ROR, where R is not hydrogen.. diethyl ether : An ether in which the oxygen atom is linked to two ethyl groups.	2.63	3	0	ether; volatile organic compound	inhalation anaesthetic; non-polar solvent; refrigerant
fenoldopam Fenoldopam: A dopamine D1 receptor agonist that is used as an antihypertensive agent. It lowers blood pressure through arteriolar vasodilation.	3.1	1	0	benzazepine	alpha-adrenergic agonist; antihypertensive agent; dopamine agonist; dopaminergic antagonist; vasodilator agent
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.	10.78	12	2	anilide; monocarboxylic acid amide; piperidines	adjuvant; anaesthesia adjuvant; anaesthetic; intravenous anaesthetic; mu-opioid receptor agonist; opioid analgesic
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.	5.6	10	0	chlorobenzoic acid; furans; sulfonamide	environmental contaminant; loop diuretic; xenobiotic
gentamicin Gentamicins: A complex of closely related aminoglycosides obtained from MICROMONOSPORA purpurea and related species. They are broad-spectrum antibiotics, but may cause ear and kidney damage. They act to inhibit PROTEIN BIOSYNTHESIS.	1.95	1	0
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.	7.45	44	0	azocanes; guanidines	adrenergic antagonist; antihypertensive agent; sympatholytic agent
halothane [no description available]	8.44	46	1	haloalkane; organobromine compound; organochlorine compound; organofluorine compound	inhalation anaesthetic
hexamethonium Hexamethonium: A nicotinic cholinergic antagonist often referred to as the prototypical ganglionic blocker. It is poorly absorbed from the gastrointestinal tract and does not cross the blood-brain barrier. It has been used for a variety of therapeutic purposes including hypertension but, like the other ganglionic blockers, it has been replaced by more specific drugs for most purposes, although it is widely used a research tool.	8.97	14	0	quaternary ammonium salt
ethidium Ethidium: A trypanocidal agent and possible antiviral agent that is widely used in experimental cell biology and biochemistry. Ethidium has several experimentally useful properties including binding to nucleic acids, noncompetitive inhibition of nicotinic acetylcholine receptors, and fluorescence among others. It is most commonly used as the bromide.. ethidium : The fluorescent compound widely used in experimental cell biology and biochemistry to reveal double-stranded DNA and RNA.	2.04	1	0	phenanthridines	fluorochrome; intercalator
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.	8.51	48	0	azaarene; hydrazines; ortho-fused heteroarene; phthalazines	antihypertensive agent; vasodilator agent
hydrochlorothiazide Hydrochlorothiazide: A thiazide diuretic often considered the prototypical member of this class. It reduces the reabsorption of electrolytes from the renal tubules. This results in increased excretion of water and electrolytes, including sodium, potassium, chloride, and magnesium. It is used in the treatment of several disorders including edema, hypertension, diabetes insipidus, and hypoparathyroidism.. hydrochlorothiazide : A benzothiadiazine that is 3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide substituted by a chloro group at position 6 and a sulfonamide at 7. It is diuretic used for the treatment of hypertension and congestive heart failure.	1.94	1	0	benzothiadiazine; organochlorine compound; sulfonamide	antihypertensive agent; diuretic; environmental contaminant; xenobiotic
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.	5.13	11	1	benzenes; monocarboxylic acid amide; tertiary amino compound	anti-arrhythmia drug; drug allergen; environmental contaminant; local anaesthetic; xenobiotic
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.	1.95	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
iothalamic acid Iothalamic Acid: A contrast medium in diagnostic radiology with properties similar to those of diatrizoic acid. It is used primarily as its sodium and meglumine (IOTHALAMATE MEGLUMINE) salts.	1.94	1	0	organic molecular entity
iodipamide Iodipamide: A water-soluble radiographic contrast media for cholecystography and intravenous cholangiography.. adipiodone : An organoiodine compound that is 3-amino-2,4,6-triiodobenzoic acid in which one of the amino hydrogens is substituted by a 6-(3-carboxy-2,4,6-triiodoanilino)-6-oxohexanoyl group. It is a water-soluble radiographic contrast media for cholecystography and intravenous cholangiography.	1.94	1	0	benzoic acids; organoiodine compound; secondary carboxamide	radioopaque medium
iproniazid [no description available]	1.94	1	0	carbohydrazide; pyridines
isoflurane Isoflurane: A stable, non-explosive inhalation anesthetic, relatively free from significant side effects.	11.99	9	3	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.	8.18	25	4	catechols; secondary alcohol; secondary amino compound	beta-adrenergic agonist; bronchodilator agent; cardiotonic drug; sympathomimetic agent
isoxsuprine Isoxsuprine: A beta-adrenergic agonist that causes direct relaxation of uterine and vascular smooth muscle. Its vasodilating actions are greater on the arteries supplying skeletal muscle than on those supplying skin. It is used in the treatment of peripheral vascular disease and in premature labor.	1.96	1	0	alkylbenzene
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.	1.94	1	0	cyclohexanones; monochlorobenzenes; secondary amino compound	analgesic; environmental contaminant; intravenous anaesthetic; neurotoxin; NMDA receptor antagonist; xenobiotic
ketanserin Ketanserin: A selective serotonin receptor antagonist with weak adrenergic receptor blocking properties. The drug is effective in lowering blood pressure in essential hypertension. It also inhibits platelet aggregation. It is well tolerated and is particularly effective in older patients.. ketanserin : A member of the class of quinazolines that is quinazoline-2,4(1H,3H)-dione which is substituted at position 3 by a 2-[4-(p-fluorobenzoyl)piperidin-1-yl]ethyl group.	3.37	1	1	aromatic ketone; organofluorine compound; piperidines; quinazolines	alpha-adrenergic antagonist; antihypertensive agent; cardiovascular drug; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; serotonergic antagonist
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.	1.97	1	0	monohydroxyquinoline; quinolinemonocarboxylic acid	G-protein-coupled receptor agonist; human metabolite; neuroprotective agent; nicotinic antagonist; NMDA receptor antagonist; Saccharomyces cerevisiae metabolite
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.	6.24	12	0	benzamides; benzenes; phenols; primary carboxamide; salicylamides; secondary alcohol; secondary amino compound
mecamylamine Mecamylamine: A nicotinic antagonist that is well absorbed from the gastrointestinal tract and crosses the blood-brain barrier. Mecamylamine has been used as a ganglionic blocker in treating hypertension, but, like most ganglionic blockers, is more often used now as a research tool.	11.46	14	1	primary aliphatic amine
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.	3.55	3	0	ethyl ester; piperidinecarboxylate ester; tertiary amino compound	antispasmodic drug; kappa-opioid receptor agonist; mu-opioid receptor agonist; opioid analgesic
mepivacaine Mepivacaine: A local anesthetic that is chemically related to BUPIVACAINE but pharmacologically related to LIDOCAINE. It is indicated for infiltration, nerve block, and epidural anesthesia. Mepivacaine is effective topically only in large doses and therefore should not be used by this route. (From AMA Drug Evaluations, 1994, p168). mepivacaine : A piperidinecarboxamide in which N-methylpipecolic acid and 2,6-dimethylaniline have combined to form the amide bond. It is used as a local amide-type anaesthetic.	1.93	1	0	piperidinecarboxamide	drug allergen; local anaesthetic
metformin Metformin: A biguanide hypoglycemic agent used in the treatment of non-insulin-dependent diabetes mellitus not responding to dietary modification. Metformin improves glycemic control by improving insulin sensitivity and decreasing intestinal absorption of glucose. (From Martindale, The Extra Pharmacopoeia, 30th ed, p289). metformin : A member of the class of guanidines that is biguanide the carrying two methyl substituents at position 1.	1.99	1	0	guanidines	environmental contaminant; geroprotector; hypoglycemic agent; xenobiotic
methocarbamol Methocarbamol: A centrally acting muscle relaxant whose mode of action has not been established. It is used as an adjunct in the symptomatic treatment of musculoskeletal conditions associated with painful muscle spasm. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1206). methocarbamol : A racemate comprising equimolar amounts of (R)- and (S)-methocarbamol. A centrally acting skeletal muscle relaxant, it is used as an adjunct in the short-term symptomatic treatment of painful muscle spasm. The (R)-enantiomer is more active than the (S)-enantiomer.. 2-hydroxy-3-(2-methoxyphenoxy)propyl carbamate : A carbamate ester that is glycerol in which one of the primary alcohol groups has been converted to its 2-methoxyphenyl ether while the other has been converted to the corresponding carbamate ester.	1.94	1	0	aromatic ether; carbamate ester; secondary alcohol
methoxyflurane Methoxyflurane: An inhalation anesthetic. Currently, methoxyflurane is rarely used for surgical, obstetric, or dental anesthesia. If so employed, it should be administered with NITROUS OXIDE to achieve a relatively light level of anesthesia, and a neuromuscular blocking agent given concurrently to obtain the desired degree of muscular relaxation. (From AMA Drug Evaluations Annual, 1994, p180). methoxyflurane : An ether in which the two groups attached to the central oxygen atom are methyl and 2,2-dichloro-1,1-difluoroethyl.	2.64	3	0	ether; organochlorine compound; organofluorine compound	hepatotoxic agent; inhalation anaesthetic; nephrotoxic agent; non-narcotic analgesic
metoclopramide Metoclopramide: A dopamine D2 antagonist that is used as an antiemetic.. metoclopramide : A member of the class of benzamides resulting from the formal condensation of 4-amino-5-chloro-2-methoxybenzoic acid with the primary amino group of N,N-diethylethane-1,2-diamine.	7.65	3	0	benzamides; monochlorobenzenes; substituted aniline; tertiary amino compound	antiemetic; dopaminergic antagonist; environmental contaminant; gastrointestinal drug; xenobiotic
metyrapone Metyrapone: An inhibitor of the enzyme STEROID 11-BETA-MONOOXYGENASE. It is used as a test of the feedback hypothalamic-pituitary mechanism in the diagnosis of CUSHING SYNDROME.. metyrapone : An aromatic ketone that is 3,3-dimethylbutan-2-one in which the methyl groups at positions 1 and 4 are replaced by pyridin-3-yl groups. A steroid 11beta-monooxygenase (EC 1.14.15.4) inhibitor, it is used in the diagnosis of adrenal insufficiency.	2	1	0	aromatic ketone	antimetabolite; diagnostic agent; EC 1.14.15.4 (steroid 11beta-monooxygenase) inhibitor
midazolam Midazolam: A short-acting hypnotic-sedative drug with anxiolytic and amnestic properties. It is used in dentistry, cardiac surgery, endoscopic procedures, as preanesthetic medication, and as an adjunct to local anesthesia. The short duration and cardiorespiratory stability makes it useful in poor-risk, elderly, and cardiac patients. It is water-soluble at pH less than 4 and lipid-soluble at physiological pH.. midazolam : An imidazobenzodiazepine that is 4H-imidazo[1,5-a][1,4]benzodiazepine which is substituted by a methyl, 2-fluorophenyl and chloro groups at positions 1, 6 and 8, respectively.	1.97	1	0	imidazobenzodiazepine; monofluorobenzenes; organochlorine compound	anticonvulsant; antineoplastic agent; anxiolytic drug; apoptosis inducer; central nervous system depressant; GABAA receptor agonist; general anaesthetic; muscle relaxant; sedative
minoxidil Minoxidil: A potent direct-acting peripheral vasodilator (VASODILATOR AGENTS) that reduces peripheral resistance and produces a fall in BLOOD PRESSURE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p371). minoxidil : A pyrimidine N-oxide that is pyrimidine-2,4-diamine 3-oxide substituted by a piperidin-1-yl group at position 6.	5.29	7	0	dialkylarylamine; tertiary amino compound
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.	1.97	1	0	alkaloid; isoxazoles; primary amino compound	fungal metabolite; GABA agonist; oneirogen; psychotropic drug
apnea Apnea: A transient absence of spontaneous respiration.	9.27	4	1	purine nucleoside
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.	3.05	5	0	quaternary ammonium ion	antidote to curare poisoning; EC 3.1.1.7 (acetylcholinesterase) inhibitor
nicardipine Nicardipine: A potent calcium channel blockader with marked vasodilator action. It has antihypertensive properties and is effective in the treatment of angina and coronary spasms without showing cardiodepressant effects. It has also been used in the treatment of asthma and enhances the action of specific antineoplastic agents.. nicardipine : A racemate comprising equimolar amounts of (R)- and (S)-nicardipine. It is a calcium channel blocker which is used to treat hypertension.. 2-[benzyl(methyl)amino]ethyl methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate : A dihydropyridine that is 1,4-dihydropyridine substituted by a methyl, {2-[benzyl(methyl)amino]ethoxy}carbonyl, 3-nitrophenyl, methoxycarbonyl and methyl groups at positions 2, 3, 4, 5 and 6, respectively.	6.27	6	2	benzenes; C-nitro compound; diester; dihydropyridine; methyl ester; tertiary amino compound
nifedipine Nifedipine: A potent vasodilator agent with calcium antagonistic action. It is a useful anti-anginal agent that also lowers blood pressure.	7.62	8	2	C-nitro compound; dihydropyridine; methyl ester	calcium channel blocker; human metabolite; tocolytic agent; 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.	10.1	38	5	nitroglycerol	explosive; muscle relaxant; nitric oxide donor; prodrug; tocolytic agent; vasodilator agent; xenobiotic
oxidopamine Oxidopamine: A neurotransmitter analogue that depletes noradrenergic stores in nerve endings and induces a reduction of dopamine levels in the brain. Its mechanism of action is related to the production of cytolytic free-radicals.. oxidopamine : A benzenetriol that is phenethylamine in which the hydrogens at positions 2, 4, and 5 on the phenyl ring are replaced by hydroxy groups. It occurs naturally in human urine, but is also produced as a metabolite of the drug DOPA (used for the treatment of Parkinson's disease).	1.96	1	0	benzenetriol; catecholamine; primary amino compound	drug metabolite; human metabolite; neurotoxin
papaverine Papaverine: An alkaloid found in opium but not closely related to the other opium alkaloids in its structure or pharmacological actions. It is a direct-acting smooth muscle relaxant used in the treatment of impotence and as a vasodilator, especially for cerebral vasodilation. The mechanism of its pharmacological actions is not clear, but it apparently can inhibit phosphodiesterases and it may have direct actions on calcium channels.. papaverine : A benzylisoquinoline alkaloid that is isoquinoline substituted by methoxy groups at positions 6 and 7 and a 3,4-dimethoxybenzyl group at position 1. It has been isolated from Papaver somniferum.	2.34	2	0	benzylisoquinoline alkaloid; dimethoxybenzene; isoquinolines	antispasmodic drug; vasodilator agent
pargyline Pargyline: A monoamine oxidase inhibitor with antihypertensive properties.	1.94	1	0	aromatic amine
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.	2.86	4	0	barbiturates	GABAA receptor agonist
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.	1.94	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.	6.7	25	0	aromatic amine
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.	2.89	4	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.	2.35	2	0	inorganic chloride; inorganic potassium salt; potassium salt	fertilizer
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.	4.82	6	0	aromatic ether; furans; monocarboxylic acid amide; piperazines; quinazolines	alpha-adrenergic antagonist; antihypertensive agent; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
procainamide Procainamide: A class Ia antiarrhythmic drug that is structurally-related to PROCAINE.. procainamide : A benzamide that is 4-aminobenzamide substituted on the amide N by a 2-(diethylamino)ethyl group. It is a pharmaceutical antiarrhythmic agent used for the medical treatment of cardiac arrhythmias.	1.95	1	0	benzamides	anti-arrhythmia drug; platelet aggregation inhibitor; sodium channel blocker
procaine Procaine: A local anesthetic of the ester type that has a slow onset and a short duration of action. It is mainly used for infiltration anesthesia, peripheral nerve block, and spinal block. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1016).. procaine : A benzoate ester, formally the result of esterification of 4-aminobenzoic acid with 2-diethylaminoethanol but formed experimentally by reaction of ethyl 4-aminobenzoate with 2-diethylaminoethanol.	2.86	4	0	benzoate ester; substituted aniline; tertiary amino compound	central nervous system depressant; drug allergen; local anaesthetic; peripheral nervous system drug
promazine Promazine: A phenothiazine with actions similar to CHLORPROMAZINE but with less antipsychotic activity. It is primarily used in short-term treatment of disturbed behavior and as an antiemetic.. promazine : A phenothiazine deriative in which the phenothiazine tricycle has a 3-(dimethylaminopropyl) group at the N-10 position.	1.94	1	0	phenothiazines; tertiary amine	antiemetic; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; H1-receptor antagonist; muscarinic antagonist; phenothiazine antipsychotic drug; serotonergic antagonist
promethazine Promethazine: A phenothiazine derivative with histamine H1-blocking, antimuscarinic, and sedative properties. It is used as an antiallergic, in pruritus, for motion sickness and sedation, and also in animals.. promethazine : A tertiary amine that is a substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropan-2-amine moiety.	1.95	1	0	phenothiazines; tertiary amine	anti-allergic agent; anticoronaviral agent; antiemetic; antipruritic drug; H1-receptor antagonist; local anaesthetic; sedative
propantheline Propantheline: A muscarinic antagonist used as an antispasmodic, in rhinitis, in urinary incontinence, and in the treatment of ulcers. At high doses it has nicotinic effects resulting in neuromuscular blocking.	2.36	2	0	xanthenes
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.	9.47	52	1	naphthalenes; propanolamine; secondary amine	anti-arrhythmia drug; antihypertensive agent; anxiolytic drug; beta-adrenergic antagonist; environmental contaminant; human blood serum metabolite; vasodilator agent; xenobiotic
qx-222 QX-222: amphipathic amine; RN given refers to ion; structure	1.96	1	0	amino acid amide
secobarbital Secobarbital: A barbiturate that is used as a sedative. Secobarbital is reported to have no anti-anxiety activity.. secobarbital : A member of the class of barbiturates that is barbituric acid in which the hydrogens at position 5 are substituted by prop-2-en-1-yl and pentan-2-yl groups.	1.94	1	0	barbiturates	anaesthesia adjuvant; GABA modulator; sedative
sevoflurane Sevoflurane: A non-explosive inhalation anesthetic used in the induction and maintenance of general anesthesia. It does not cause respiratory irritation and may also prevent PLATELET AGGREGATION.. sevoflurane : An ether compound having fluoromethyl and 1,1,1,3,3,3-hexafluoroisopropyl as the two alkyl groups.	3.38	1	1	ether; organofluorine compound	central nervous system depressant; inhalation anaesthetic; platelet aggregation inhibitor
succinylcholine Succinylcholine: A quaternary skeletal muscle relaxant usually used in the form of its bromide, chloride, or iodide. It is a depolarizing relaxant, acting in about 30 seconds and with a duration of effect averaging three to five minutes. Succinylcholine is used in surgical, anesthetic, and other procedures in which a brief period of muscle relaxation is called for.. succinylcholine : A quaternary ammonium ion that is the bis-choline ester of succinic acid.	3.45	8	0	quaternary ammonium ion; succinate ester	drug allergen; muscle relaxant; neuromuscular agent
sulfamethoxazole Sulfamethoxazole: A bacteriostatic antibacterial agent that interferes with folic acid synthesis in susceptible bacteria. Its broad spectrum of activity has been limited by the development of resistance. (From Martindale, The Extra Pharmacopoeia, 30th ed, p208). sulfamethoxazole : An isoxazole (1,2-oxazole) compound having a methyl substituent at the 5-position and a 4-aminobenzenesulfonamido group at the 3-position.	2.38	2	0	isoxazoles; substituted aniline; sulfonamide antibiotic; sulfonamide	antibacterial agent; antiinfective agent; antimicrobial agent; drug allergen; EC 1.1.1.153 [sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming)] inhibitor; EC 2.5.1.15 (dihydropteroate synthase) inhibitor; environmental contaminant; epitope; P450 inhibitor; xenobiotic
terbutaline Terbutaline: A selective beta-2 adrenergic agonist used as a bronchodilator and tocolytic.. terbutaline : A member of the class of phenylethanolamines that is catechol substituted at position 5 by a 2-(tert-butylamino)-1-hydroxyethyl group.	2.68	3	0	phenylethanolamines; resorcinols	anti-asthmatic drug; beta-adrenergic agonist; bronchodilator agent; EC 3.1.1.7 (acetylcholinesterase) inhibitor; hypoglycemic agent; sympathomimetic agent; tocolytic agent
tetracaine Tetracaine: A potent local anesthetic of the ester type used for surface and spinal anesthesia.. tetracaine : A benzoate ester in which 4-N-butylbenzoic acid and 2-(dimethylamino)ethanol have combined to form the ester bond; a local ester anaesthetic (ester caine) used for surface and spinal anaesthesia.	1.94	1	0	benzoate ester; tertiary amino compound	local anaesthetic
tolazoline Tolazoline: A vasodilator that apparently has direct actions on blood vessels and also increases cardiac output. Tolazoline can interact to some degree with histamine, adrenergic, and cholinergic receptors, but the mechanisms of its therapeutic effects are not clear. It is used in treatment of persistent pulmonary hypertension of the newborn.. tolazoline : A member of the class of imidazoles that is 4,5-dihydro-1H-imidazole substituted by a benzyl group.	2.37	2	0	imidazoles	alpha-adrenergic antagonist; antihypertensive agent; vasodilator agent
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.	1.95	1	0	N-sulfonylurea	human metabolite; hypoglycemic agent; insulin secretagogue; potassium channel blocker
triamterene Triamterene: A pteridinetriamine compound that inhibits SODIUM reabsorption through SODIUM CHANNELS in renal EPITHELIAL CELLS.. triamterene : Pteridine substituted at positions 2, 4 and 7 with amino groups and at position 6 with a phenyl group. A sodium channel blocker, it is used as a diuretic in the treatment of hypertension and oedema.	2.36	2	0	pteridines	diuretic; sodium channel blocker
tyramine [no description available]	5.38	4	1	monoamine molecular messenger; primary amino compound; tyramines	EC 3.1.1.8 (cholinesterase) inhibitor; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter
urethane [no description available]	1.97	1	0	carbamate ester	fungal metabolite; mutagen
oxyphenonium Oxyphenonium: A quaternary ammonium anticholinergic agent with peripheral side effects similar to those of ATROPINE. It is used as an adjunct in the treatment of gastric and duodenal ulcer, and to relieve visceral spasms. The drug has also been used in the form of eye drops for mydriatic effect.	1.95	1	0	acylcholine
corticosterone [no description available]	2.38	2	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.	8.49	65	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.	11.63	37	3	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).	1.94	1	0	glucitol	cathartic; Escherichia coli metabolite; food humectant; human metabolite; laxative; metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite; sweetening agent
thyroxine Thyroxine: The major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosines (MONOIODOTYROSINE) and the coupling of iodotyrosines (DIIODOTYROSINE) in the THYROGLOBULIN. Thyroxine is released from thyroglobulin by proteolysis and secreted into the blood. Thyroxine is peripherally deiodinated to form TRIIODOTHYRONINE which exerts a broad spectrum of stimulatory effects on cell metabolism.. thyroxine : An iodothyronine compound having iodo substituents at the 3-, 3'-, 5- and 5'-positions.	1.93	1	0	2-halophenol; iodophenol; L-phenylalanine derivative; non-proteinogenic L-alpha-amino acid; thyroxine zwitterion; thyroxine	antithyroid drug; human metabolite; mouse metabolite; thyroid hormone
carbachol Carbachol: A slowly hydrolyzed CHOLINERGIC AGONIST that acts at both MUSCARINIC RECEPTORS and NICOTINIC RECEPTORS.	3.22	6	0	ammonium salt; carbamate ester	cardiotonic drug; miotic; muscarinic agonist; nicotinic acetylcholine receptor agonist; non-narcotic analgesic
spironolactone Spironolactone: A potassium sparing diuretic that acts by antagonism of aldosterone in the distal renal tubules. It is used mainly in the treatment of refractory edema in patients with congestive heart failure, nephrotic syndrome, or hepatic cirrhosis. Its effects on the endocrine system are utilized in the treatments of hirsutism and acne but they can lead to adverse effects. (From Martindale, The Extra Pharmacopoeia, 30th ed, p827). spironolactone : A steroid lactone that is 17alpha-pregn-4-ene-21,17-carbolactone substituted by an oxo group at position 3 and an alpha-acetylsulfanyl group at position 7.	2.36	2	0	3-oxo-Delta(4) steroid; oxaspiro compound; steroid lactone; thioester	aldosterone antagonist; antihypertensive agent; diuretic; environmental contaminant; xenobiotic
aldosterone [no description available]	4.16	5	0	11beta-hydroxy steroid; 18-oxo steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo-Delta(4) steroid; C21-steroid hormone; mineralocorticoid; primary alpha-hydroxy ketone; steroid aldehyde	human metabolite; mouse metabolite
pentolinium tartrate Pentolinium Tartrate: A nicotinic antagonist that has been used as a ganglionic blocking agent in hypertension.. pentolinium tartrate : The bitartrate salt of pentolinium.	6.28	16	0	tartrate salt	antihypertensive agent
metaraminol Metaraminol: A sympathomimetic agent that acts predominantly at alpha-1 adrenergic receptors. It has been used primarily as a vasoconstrictor in the treatment of HYPOTENSION.. metaraminol : A member of the class of phenylethanolamines that is 2-amino-1-phenylethanol substituted by a methyl group at position 2 and a phenolic hydroxy group at position 1. A sympathomimetic agent , it is used in the treatment of hypotension.	4.42	7	0	phenylethanolamines	alpha-adrenergic agonist; sympathomimetic agent; vasoconstrictor agent
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.	2.37	2	0	N-arylpiperazine; organic iodide salt; piperazinium salt; quaternary ammonium salt	nicotinic acetylcholine receptor agonist
triiodothyronine Triiodothyronine: A T3 thyroid hormone normally synthesized and secreted by the thyroid gland in much smaller quantities than thyroxine (T4). Most T3 is derived from peripheral monodeiodination of T4 at the 5' position of the outer ring of the iodothyronine nucleus. The hormone finally delivered and used by the tissues is mainly T3.. 3,3',5-triiodo-L-thyronine : An iodothyronine compound having iodo substituents at the 3-, 3'- and 5-positions. Although some is produced in the thyroid, most of the 3,3',5-triiodo-L-thyronine in the body is generated by mono-deiodination of L-thyroxine in the peripheral tissues. Its metabolic activity is about 3 to 5 times that of L-thyroxine. The sodium salt is used in the treatment of hypothyroidism.	2.36	2	0	2-halophenol; amino acid zwitterion; iodophenol; iodothyronine	human metabolite; mouse metabolite; thyroid hormone
isoflurophate Isoflurophate: A di-isopropyl-fluorophosphate which is an irreversible cholinesterase inhibitor used to investigate the NERVOUS SYSTEM.	2.67	3	0	dialkyl phosphate
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.	3.33	1	1	aspartate family amino acid; aspartic acid; L-alpha-amino acid; proteinogenic amino acid	Escherichia coli metabolite; mouse metabolite; neurotransmitter
cyanides Cyanides: Inorganic salts of HYDROGEN CYANIDE containing the -CN radical. The concept also includes isocyanides. It is distinguished from NITRILES, which denotes organic compounds containing the -CN radical.. cyanides : Salts and C-organyl derivatives of hydrogen cyanide, HC#N.. isocyanide : The isomer HN(+)#C(-) of hydrocyanic acid, HC#N, and its hydrocarbyl derivatives RNC (RN(+)#C(-)).. cyanide : A pseudohalide anion that is the conjugate base of hydrogen cyanide.	2.88	4	0	pseudohalide anion	EC 1.9.3.1 (cytochrome c oxidase) inhibitor
physostigmine Physostigmine: A cholinesterase inhibitor that is rapidly absorbed through membranes. It can be applied topically to the conjunctiva. It also can cross the blood-brain barrier and is used when central nervous system effects are desired, as in the treatment of severe anticholinergic toxicity.	1.93	1	0	carbamate ester; indole alkaloid	antidote to curare poisoning; EC 3.1.1.8 (cholinesterase) inhibitor; miotic
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.	3.83	12	0	bisbenzylisoquinoline alkaloid	drug allergen; muscle relaxant; nicotinic antagonist
apomorphine Apomorphine: A derivative of morphine that is a dopamine D2 agonist. It is a powerful emetic and has been used for that effect in acute poisoning. It has also been used in the diagnosis and treatment of parkinsonism, but its adverse effects limit its use.	2.65	3	0	aporphine alkaloid	alpha-adrenergic drug; antidyskinesia agent; antiparkinson drug; dopamine agonist; emetic; serotonergic drug
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.	9.56	34	9	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	2	1	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
methoxamine Methoxamine: An alpha-1 adrenergic agonist that causes prolonged peripheral VASOCONSTRICTION.. methoxamine : An amphetamine in which the parent 1-phenylpropan-2-amine skeleton is substituted at position 1 with an hydroxy group and the phenyl ring is 2- and 5-substituted with methoxy groups. It is an antihypotensive agent (pressor), an agonist acting directly at alpha-adrenoceptors with selectivity for the alpha-1 adrenoceptor subtype similar to phenylephrine .	7.87	4	0	amphetamines	alpha-adrenergic agonist; antihypotensive agent
gallamine triethiodide Gallamine Triethiodide: A synthetic nondepolarizing blocking drug. The actions of gallamine triethiodide are similar to those of TUBOCURARINE, but this agent blocks the cardiac vagus and may cause sinus tachycardia and, occasionally, hypertension and increased cardiac output. It should be used cautiously in patients at risk from increased heart rate but may be preferred for patients with bradycardia. (From AMA Drug Evaluations Annual, 1992, p198)	1.97	1	0
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.	4.3	6	0	isoindoles
mannitol [no description available]	3.19	6	0	mannitol	allergen; antiglaucoma drug; compatible osmolytes; Escherichia coli metabolite; food anticaking agent; food bulking agent; food humectant; food stabiliser; food thickening agent; hapten; metabolite; osmotic diuretic; sweetening agent
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
cyclopropane cyclopropane : A cycloalkane composed of three carbon atoms to form a ring.	1.93	1	0	cycloalkane; cyclopropanes	inhalation anaesthetic
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)	2.63	3	0	primary amino compound; triol	buffer
pempidine Pempidine: A nicotinic antagonist most commonly used as an experimental tool. It has been used as a ganglionic blocker in the treatment of hypertension but has largely been supplanted for that purpose by more specific drugs.	3.74	3	0	piperidines
methylmethacrylate Methylmethacrylate: The methyl ester of methacrylic acid. It polymerizes easily to form POLYMETHYL METHACRYLATE. It is used as a bone cement.. methyl methacrylate : An enoate ester having methacrylic acid as the carboxylic acid component and methanol as the alcohol component.	1.96	1	0	enoate ester; methyl ester	allergen; polymerisation monomer
methylprednisolone Methylprednisolone: A PREDNISOLONE derivative with similar anti-inflammatory action.. 6alpha-methylprednisolone : The 6alpha-stereoisomer of 6-methylprednisolone.	1.95	1	0	6-methylprednisolone; primary alpha-hydroxy ketone; tertiary alpha-hydroxy ketone	adrenergic agent; anti-inflammatory drug; antiemetic; environmental contaminant; neuroprotective agent; xenobiotic
acetrizoic acid Acetrizoic Acid: An iodinated radiographic contrast medium used as acetrizoate sodium in HYSTEROSALPINGOGRAPHY.	2.34	2	0	aminobenzoic acid
brompheniramine Brompheniramine: Histamine H1 antagonist used in treatment of allergies, rhinitis, and urticaria.. brompheniramine : Pheniramine in which the hydrogen at position 4 of the phenyl substituent is substituted by bromine. A histamine H1 receptor antagonist, brompheniramine is used (commonly as its maleate salt) for the symptomatic relief of allergic conditions, including rhinitis and conjunctivitis.	1.94	1	0	organobromine compound; pyridines	anti-allergic agent; H1-receptor antagonist
n-vinyl-2-pyrrolidinone N-vinyl-2-pyrrolidinone: monomer of POVIDONE; structure given in first source	1.93	1	0	pyrrolidin-2-ones
quinoxalines quinoxaline : A naphthyridine in which the nitrogens are at positions 1 and 4.	1.99	1	0	mancude organic heterobicyclic parent; naphthyridine; ortho-fused heteroarene
pyridostigmine bromide Pyridostigmine Bromide: A cholinesterase inhibitor with a slightly longer duration of action than NEOSTIGMINE. It is used in the treatment of myasthenia gravis and to reverse the actions of muscle relaxants.	2.11	1	0	pyridinium salt
ergotamine Ergotamine: A vasoconstrictor found in ergot of Central Europe. It is a serotonin agonist that has been used as an oxytocic agent and in the treatment of MIGRAINE DISORDERS.. ergotamine : A peptide ergot alkaloid that is dihydroergotamine in which a double bond replaces the single bond between positions 9 and 10.	2.63	3	0	peptide ergot alkaloid	alpha-adrenergic agonist; mycotoxin; non-narcotic analgesic; oxytocic; serotonergic agonist; vasoconstrictor agent
methylergonovine Methylergonovine: A homolog of ERGONOVINE containing one more CH2 group. (Merck Index, 11th ed)	1.94	1	0	ergoline alkaloid
ambenonium chloride Ambenonium Chloride: A quaternary ammonium compound that is an inhibitor of cholinesterase activity with actions similar to those of NEOSTIGMINE, but of longer duration. Ambenonium is given by mouth in the treatment of myasthenia gravis. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1112). ambenonium chloride : A symmetrical oxalamide-based bis-quaternary ammonium salt having ethyl and 2-chlorobenzyl groups attached to the nitrogens.	1.94	1	0	organic chloride salt; quaternary ammonium salt	EC 3.1.1.8 (cholinesterase) inhibitor; neurotransmitter agent
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.	7.18	8	3	methyl 17-hydroxy-20xi-yohimban-16-carboxylate	alpha-adrenergic antagonist; dopamine receptor D2 antagonist; serotonergic antagonist
acridines Acridines: Compounds that include the structure of acridine.. acridine : A polycyclic heteroarene that is anthracene in which one of the central CH groups is replaced by a nitrogen atom.	2.04	1	0	acridines; mancude organic heterotricyclic parent; polycyclic heteroarene	genotoxin
ephedrine Ephedrine: A phenethylamine found in EPHEDRA SINICA. PSEUDOEPHEDRINE is an isomer. It is an alpha- and beta-adrenergic agonist that may also enhance release of norepinephrine. It has been used for asthma, heart failure, rhinitis, and urinary incontinence, and for its central nervous system stimulatory effects in the treatment of narcolepsy and depression. It has become less extensively used with the advent of more selective agonists.. (-)-ephedrine : A phenethylamine alkaloid that is 2-phenylethanamine substituted by a methyl group at the amino nitrogen and a methyl and a hydroxy group at position 2 and 1 respectively.	4.44	5	1	phenethylamine alkaloid; phenylethanolamines	bacterial metabolite; environmental contaminant; nasal decongestant; plant metabolite; sympathomimetic agent; vasoconstrictor agent; xenobiotic
hydrazine diamine : Any polyamine that contains two amino groups.	2.35	2	0	azane; hydrazines	EC 4.3.1.10 (serine-sulfate ammonia-lyase) inhibitor
hemicholinium 3 Hemicholinium 3: A potent inhibitor of the high affinity uptake system for CHOLINE. It has less effect on the low affinity uptake system. Since choline is one of the components of ACETYLCHOLINE, treatment with hemicholinium can deplete acetylcholine from cholinergic terminals. Hemicholinium 3 is commonly used as a research tool in animal and in vitro experiments.	2.68	3	0
evans blue Evans Blue: An azo dye used in blood volume and cardiac output measurement by the dye dilution method. It is very soluble, strongly bound to plasma albumin, and disappears very slowly.. Evans blue : An organic sodium salt that is the tetrasodium salt of 6,6'-{(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis[diazene-2,1-diyl]}bis(4-amino-5-hydroxynaphthalene-1,3-disulfonate). It is sometimes used as a counterstain, especially in fluorescent methods to suppress background autofluorescence.	1.96	1	0	organic sodium salt	fluorochrome; histological dye; sodium channel blocker; teratogenic agent
aminophylline Aminophylline: A drug combination that contains THEOPHYLLINE and ethylenediamine. It is more soluble in water than theophylline but has similar pharmacologic actions. It's most common use is in bronchial asthma, but it has been investigated for several other applications.. aminophylline : A mixture comprising of theophylline and ethylenediamine in a 2:1 ratio.	1.95	1	0	mixture	bronchodilator agent; cardiotonic drug
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.	1.93	1	0	ergoline alkaloid
n-pentyl nitrite Amyl Nitrite: A vasodilator that is administered by inhalation. It is also used recreationally due to its supposed ability to induce euphoria and act as an aphrodisiac.. n-pentyl nitrite : A nitrite ester having n-pentyl as the alkyl group.	1.94	1	0	nitrite esters	vasodilator agent
dihydralazine Dihydralazine: 1,4-Dihydrazinophthalazine. An antihypertensive agent with actions and uses similar to those of HYDRALAZINE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p354)	1.96	1	0	phthalazines
cytisine [no description available]	2.67	3	0	alkaloid; bridged compound; lactam; organic heterotricyclic compound; secondary amino compound	nicotinic acetylcholine receptor agonist; phytotoxin; plant metabolite
chlormethiazole Chlormethiazole: A sedative and anticonvulsant often used in the treatment of alcohol withdrawal. Chlormethiazole has also been proposed as a neuroprotective agent. The mechanism of its therapeutic activity is not entirely clear, but it does potentiate GAMMA-AMINOBUTYRIC ACID receptors response and it may also affect glycine receptors.	1.95	1	0	thiazoles
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.	5.22	4	1	methoxybenzenes; phenols
pentamethonium pentamethonium: RN given refers to parent cpd. pentamethonium : A quarternary ammonium cation that is cadaverine in which the terminal amino hydrogens are substituted methyl groups. Its bromide and iodide salt exhibits ganglionic blocking activity and used in the treatment of hypertension.	1.93	1	0	quaternary ammonium ion	antihypertensive agent; vasodilator agent
18-hydroxycorticosterone [no description available]	1.96	1	0	11beta-hydroxy steroid; 18-hydroxy steroid; 20-oxo steroid; 21-hydroxy steroid; 3-oxo steroid; primary alpha-hydroxy ketone	human metabolite; mouse metabolite
glycopyrrolate Glycopyrrolate: A muscarinic antagonist used as an antispasmodic, in some disorders of the gastrointestinal tract, and to reduce salivation with some anesthetics.. glycopyrronium bromide : A quaternary ammonium salt composed of 3-{[cyclopentyl(hydroxy)phenylacetyl]oxy}-1,1-dimethylpyrrolidin-1-ium and bromide ions in a 1:1 ratio.	4.39	2	2	organic bromide salt; quaternary ammonium salt
methylnitrosourea Methylnitrosourea: A nitrosourea compound with alkylating, carcinogenic, and mutagenic properties.. N-methyl-N-nitrosourea : A member of the class of N-nitrosoureas that is urea in which one of the nitrogens is substituted by methyl and nitroso groups.	1.96	1	0	N-nitrosoureas	alkylating agent; carcinogenic agent; mutagen; teratogenic agent
s,n,n'-tripropylthiocarbamate Reward: An object or a situation that can serve to reinforce a response, to satisfy a motive, or to afford pleasure.. vernolate : A monounsaturated fatty acid anion that is the conjugate base of vernolic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3.	3.38	1	1	tertiary amine
benperidol Benperidol: A butyrophenone with general properties similar to those of HALOPERIDOL. It has been used in the treatment of aberrant sexual behavior. (From Martindale, The Extra Pharmacopoeia, 30th ed, p567)	4.24	4	1	aromatic ketone
streptomycin [no description available]	1.94	1	0	antibiotic antifungal drug; antibiotic fungicide; streptomycins	antibacterial drug; antifungal agrochemical; antimicrobial agent; antimicrobial drug; bacterial metabolite; protein synthesis inhibitor
acetylthiocholine Acetylthiocholine: An agent used as a substrate in assays for cholinesterases, especially to discriminate among enzyme types.	1.96	1	0
butyrylthiocholine Butyrylthiocholine: A sulfur-containing analog of butyrylcholine which is hydrolyzed by butyrylcholinesterase to butyrate and thiocholine. It is used as a reagent in the determination of butyrylcholinesterase activity.. butyrylthiocholine : A quaternary ammonium ion obtained by the formal condensation of the carboxy group of butyric acid with the thiol group of thiocholine. It is used as a reagent for determination of butyrylcholinesterase activity.	1.95	1	0	quaternary ammonium ion
metocurine metocurine: from Chinese herb Cyclea hainanensis Mrr	1.97	1	0	isoquinolines
manganese Manganese: A trace element with atomic symbol Mn, atomic number 25, and atomic weight 54.94. It is concentrated in cell mitochondria, mostly in the pituitary gland, liver, pancreas, kidney, and bone, influences the synthesis of mucopolysaccharides, stimulates hepatic synthesis of cholesterol and fatty acids, and is a cofactor in many enzymes, including arginase and alkaline phosphatase in the liver. (From AMA Drug Evaluations Annual 1992, p2035). manganese(4+) : A manganese cation that is monoatomic and has a formal charge of +4.	3.33	1	1	elemental manganese; manganese group element atom	Escherichia coli metabolite; micronutrient
technetium Technetium: The first artificially produced element and a radioactive fission product of URANIUM. Technetium has the atomic symbol Tc, and atomic number 43. All technetium isotopes are radioactive. Technetium 99m (m=metastable) which is the decay product of Molybdenum 99, has a half-life of about 6 hours and is used diagnostically as a radioactive imaging agent. Technetium 99 which is a decay product of technetium 99m, has a half-life of 210,000 years.	2.35	2	0	manganese group element atom
gadolinium Gadolinium: An element of the rare earth family of metals. It has the atomic symbol Gd, atomic number 64, and atomic weight 157.25. Its oxide is used in the control rods of some nuclear reactors.	1.99	1	0	f-block element atom; lanthanoid atom
xenon Xenon: A noble gas with the atomic symbol Xe, atomic number 54, and atomic weight 131.30. It is found in the earth's atmosphere and has been used as an anesthetic.	2.86	4	0	monoatomic xenon; noble gas atom; p-block element atom
magnesium sulfate Magnesium Sulfate: A small colorless crystal used as an anticonvulsant, a cathartic, and an electrolyte replenisher in the treatment of pre-eclampsia and eclampsia. It causes direct inhibition of action potentials in myometrial muscle cells. Excitation and contraction are uncoupled, which decreases the frequency and force of contractions. (From AMA Drug Evaluations Annual, 1992, p1083). magnesium sulfate : A magnesium salt having sulfate as the counterion.	1.96	1	0	magnesium salt; metal sulfate; organic magnesium salt	anaesthetic; analgesic; anti-arrhythmia drug; anticonvulsant; calcium channel blocker; cardiovascular drug; fertilizer; tocolytic agent
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.	1.94	1	0	ammonium salt; inorganic chloride	ferroptosis inhibitor
fluorides [no description available]	1.96	1	0	halide anion; monoatomic fluorine
bromocriptine Bromocriptine: A semisynthetic ergotamine alkaloid that is a dopamine D2 agonist. It suppresses prolactin secretion.	1.97	1	0	indole alkaloid	antidyskinesia agent; antiparkinson drug; dopamine agonist; hormone antagonist
cetylpyridinium chloride anhydrous tserigel: according to first source contains polyvinylbutyral & cetylpyridinium chloride; UD only lists cetylpyridinium chloride as constituent. cetylpyridinium chloride : A pyridinium salt that has N-hexadecylpyridinium as the cation and chloride as the anion. It has antiseptic properties and is used in solutions or lozenges for the treatment of minor infections of the mouth and throat.	3.42	1	1	chloride salt; organic chloride salt	antiseptic drug; surfactant
paraldehyde Paraldehyde: A hypnotic and sedative with anticonvulsant effects. However, because of the hazards associated with its administration, its tendency to react with plastic, and the risks associated with its deterioration, it has largely been superseded by other agents. It is still occasionally used to control status epilepticus resistant to conventional treatment. (From Martindale, The Extra Pharmacopoeia, 30th ed, p608-9). paraldehyde : A trioxane that is 1,3,5-trioxane substituted by methyl groups at positions 2, 4 and 6.	1.95	1	0	trioxane	sedative
dihydro-beta-erythroidine Dihydro-beta-Erythroidine: Dihydro analog of beta-erythroidine, which is isolated from the seeds and other plant parts of Erythrina sp. Leguminosae. It is an alkaloid with curarimimetic properties.. dihydro-beta-erythroidine : An organic heterotetracyclic compound resulting from the partial hydrogenation of the 1,3-diene moiety of beta-erythroidine to give the corresponding 2-ene.	2.39	2	0	delta-lactone; organic heterotetracyclic compound; tertiary amino compound	nicotinic antagonist
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.	1.96	1	0	glutamic acid; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid	Escherichia coli metabolite; ferroptosis inducer; micronutrient; mouse metabolite; neurotransmitter; nutraceutical
azides Azides: Organic or inorganic compounds that contain the -N3 group.. azide : Any nitrogen molecular entity containing the group -N3.	1.94	1	0	pseudohalide anion	mitochondrial respiratory-chain inhibitor
timolol (S)-timolol (anhydrous) : The (S)-(-) (more active) enantiomer of timolol. A beta-adrenergic antagonist, both the hemihydrate and the maleate salt are used in the mangement of glaucoma, hypertension, angina pectoris and myocardial infarction, and for the prevention of migraine.	1.95	1	0	timolol	anti-arrhythmia drug; antiglaucoma drug; antihypertensive agent; beta-adrenergic antagonist
substance p [no description available]	2.66	3	0	peptide	neurokinin-1 receptor agonist; neurotransmitter; vasodilator agent
methyldopa Methyldopa: An alpha-2 adrenergic agonist that has both central and peripheral nervous system effects. Its primary clinical use is as an antihypertensive agent.. alpha-methyl-L-dopa : A derivative of L-tyrosine having a methyl group at the alpha-position and an additional hydroxy group at the 3-position on the phenyl ring.	7.52	34	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.	3.78	2	1	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
vecuronium bromide Vecuronium Bromide: Monoquaternary homolog of PANCURONIUM. A non-depolarizing neuromuscular blocking agent with shorter duration of action than pancuronium. Its lack of significant cardiovascular effects and lack of dependence on good kidney function for elimination as well as its short duration of action and easy reversibility provide advantages over, or alternatives to, other established neuromuscular blocking agents.. vecuronium bromide : The organic bromide salt of a 5alpha-androstane compound having 3alpha-acetoxy-, 17beta-acetoxy-, 2beta-piperidinino- and 16beta-N-methylpiperidinium substituents.	3.36	1	1	organic bromide salt; quaternary ammonium salt	muscle relaxant; neuromuscular agent; nicotinic antagonist
ng-nitroarginine methyl ester NG-Nitroarginine Methyl Ester: A non-selective inhibitor of nitric oxide synthase. It has been used experimentally to induce hypertension.	1.98	1	0	alpha-amino acid ester; L-arginine derivative; methyl ester; N-nitro compound	EC 1.14.13.39 (nitric oxide synthase) inhibitor
sufentanil Sufentanil: An opioid analgesic that is used as an adjunct in anesthesia, in balanced anesthesia, and as a primary anesthetic agent.. sufentanil : An anilide resulting from the formal condensation of the aryl amino group of 4-(methoxymethyl)-N-phenyl-1-[2-(2-thienyl)ethyl]piperidin-4-amine with propanoic acid.	3.36	1	1	anilide; ether; piperidines; thiophenes	anaesthesia adjuvant; intravenous anaesthetic; mu-opioid receptor agonist; opioid analgesic
captopril Captopril: A potent and specific inhibitor of PEPTIDYL-DIPEPTIDASE A. It blocks the conversion of ANGIOTENSIN I to ANGIOTENSIN II, a vasoconstrictor and important regulator of arterial blood pressure. Captopril acts to suppress the RENIN-ANGIOTENSIN SYSTEM and inhibits pressure responses to exogenous angiotensin.. captopril : A L-proline derivative in which L-proline is substituted on nitrogen with a (2S)-2-methyl-3-sulfanylpropanoyl group. It is used as an anti-hypertensive ACE inhibitor drug.	1.96	1	0	alkanethiol; L-proline derivative; N-acylpyrrolidine; pyrrolidinemonocarboxylic acid	antihypertensive agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
alfentanil Alfentanil: A short-acting opioid anesthetic and analgesic derivative of FENTANYL. It produces an early peak analgesic effect and fast recovery of consciousness. Alfentanil is effective as an anesthetic during surgery, for supplementation of analgesia during surgical procedures, and as an analgesic for critically ill patients.. alfentanil : A member of the class of piperidines that is piperidine having a 2-(4-ethyl-5-oxo-4,5-dihydro-1H-tetrazol-1-yl)ethyl group at the 1-position as well as N-phenylpropanamido- and methoxymethyl groups at the 4-position.	8.36	1	1	monocarboxylic acid amide; piperidines	central nervous system depressant; intravenous anaesthetic; mu-opioid receptor agonist; opioid analgesic; peripheral nervous system drug
fomesafen fomesafen: a protoporphyrinogen oxidase-inhibiting herbicide. fomesafen : An N-sulfonylcarboxamide that is N-(methylsulfonyl)benzamide in which the phenyl ring is substituted by a nitro group at position 2 and a 2-chloro-4-(trifluoromethyl)phenoxy group at position 5. A protoporphyrinogen oxidase inhibitor, it was specially developed for use (generally as the corresponding sodium salt, fomesafen-sodium) for post-emergence control of broad-leaf weeds in soya.	7.31	14	2	aromatic ether; C-nitro compound; monochlorobenzenes; N-sulfonylcarboxamide; organofluorine compound; phenols	agrochemical; EC 1.3.3.4 (protoporphyrinogen oxidase) inhibitor; herbicide
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.	1.97	1	0	benzodioxine; imidazolines	alpha-adrenergic antagonist
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.	2.11	1	0	hydrochloride	adrenergic uptake inhibitor; antidepressant
ipsapirone [no description available]	1.97	1	0	N-arylpiperazine
esmolol methyl 3-{4-[2-hydroxy-3-(propan-2-ylamino)propoxy]phenyl}propanoate : A methyl ester that is methyl 3-(4-hydroxyphenyl)propanoate in which the hydrogen attached to the phenolic hydroxy group is substituted by a 2-hydroxy-3-(isopropylamino)propyl group.. esmolol : A racemate comprising equimolar amounts of (R)- and (S)-esmolol. A cardioselective and short-acting beta1 receptor blocker with rapid onset but lacking intrinsic sympathomimetic and membrane-stabilising properties, it is used as the hydrochloride salt in the management of supraventricular arrhythmias, and for the control of hypertension and tachycardia during surgery. While the S enantiomer possesses all of the heart rate control, both enantiomers contribute to lowering blood pressure.	4	2	0	aromatic ether; ethanolamines; methyl ester; secondary alcohol; secondary amino compound
adenosine quinquefolan B: isolated from roots of Panax quinquefolium L.; RN not in Chemline 10/87; RN from Toxlit	2.66	3	0	adenosines; purines D-ribonucleoside	analgesic; anti-arrhythmia drug; fundamental metabolite; human metabolite; vasodilator agent
gadolinium chloride gadolinium chloride: a macrophage inhibitor; reduces pulmonary injury and inflammatory mediator production induced by inhaled ozone	1.99	1	0	gadolinium coordination entity	TRP channel blocker
dimethylhydrazines Dimethylhydrazines: Hydrazines substituted with two methyl groups in any position.	1.96	1	0
10,10'-dimethyl-9,9'-biacridinium 10,10'-dimethyl-9,9'-biacridinium: chemoluminescent probe; RN given refers to dinitrate; Lucigenin refers to dinitrate	2.04	1	0
triethylcholine triethylcholine: triethyl analog of choline with parasympatholytic properties; cholinergic false transmitter that mainly affects skeletal muscles; minor descriptor (75-86); on line & INDEX MEDICUS search CHOLINE/AA (75-86); RN given refers to parent cpd	6.98	1	0
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.	6.72	10	2	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
3,4-dihydroxyphenylglycol 3,4-dihydroxyphenylglycol: noradrenaline metabolite in mouse brain; RN given refers to cpd without isomeric designation. 3,4-dihydroxyphenylethyleneglycol : A tetrol composed of ethyleneglycol having a 3,4-dihydroxyphenyl group at the 1-position.	5.22	4	1	catechols; tetrol	metabolite; mouse metabolite
u 74389f U 74389F: a 21-aminosteroid antioxidant (lazaroids); inhibitor of iron-dependent lipid peroxidation; structure in first source	1.99	1	0
epibatidine epibatidine: a powerful, though toxic, pain killer produced by the poison arrow frog, Epipedobates tricolor; structure given in first source; more potent than morphine but acts at nicotine rather than opiate receptors	2	1	0
methyllycaconitine methyllycaconitine: natural toxin from seeds of Delphinium brownii; parasympathomimetic and mild nicotine antagonist; antagonist of alpha-conotoxin-MII sensitive presynaptic nicotinic receptors; potent insecticide; RN refers to (1alpha,4(S),6beta,14alpha,16beta)-isomer	1.98	1	0
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.	1.99	1	0
yohimbane yohimbane: from Gelsemium elegans; structure in first source	2.11	1	0	indole alkaloid fundamental parent; indole alkaloid; yohimban alkaloid
dopamine 3-o-sulfate dopamine 3-O-sulfate: end product of L-Dopa metabolism in Parkinson patients; see also record for dopamine 4-O-sulfate. dopamine 3-O-sulfate : An aryl sulfate that is dopamine in which the phenolic hydrogen at position 3 has been replaced by a sulfo group.	2	1	0	aryl sulfate; phenols; primary amino compound; zwitterion	human blood serum metabolite; human urinary metabolite
5-fluorodopamine [no description available]	3.77	2	1
subecholine subecholine: dicholinic ester of suberic acid; structure	1.98	1	0
dihydroethidium dihydroethidium: RN given is for the (+-)-isomer	2.04	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.	5.62	3	2	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.	3.34	1	1	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
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).	5.49	22	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.	6.85	37	2
bradykinin [no description available]	2.36	2	0	oligopeptide	human blood serum metabolite; vasodilator agent
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.	1.97	1	0	heterodetic cyclic peptide; peptide hormone	oxytocic; vasodilator agent
strychnine Strychnine: An alkaloid found in the seeds of STRYCHNOS NUX-VOMICA. It is a competitive antagonist at glycine receptors and thus a convulsant. It has been used as an analeptic, in the treatment of nonketotic hyperglycinemia and sleep apnea, and as a rat poison.. strychnine : A monoterpenoid indole alkaloid that is strychnidine bearing a keto substituent at the 10-position.	2.38	2	0	monoterpenoid indole alkaloid; organic heteroheptacyclic compound	avicide; cholinergic antagonist; glycine receptor antagonist; neurotransmitter agent; rodenticide
pancuronium Pancuronium: A bis-quaternary steroid that is a competitive nicotinic antagonist. As a neuromuscular blocking agent it is more potent than CURARE but has less effect on the circulatory system and on histamine release.. pancuronium : A steroid ester in which a 5alpha-androstane skeleton is C-3alpha- and C-17beta-disubstituted with acetoxy groups and 2beta- and 16beta-disubstituted with 1-methylpiperidinium-1-yl groups. It is a non-depolarizing curare-mimetic muscle relaxant.	2.66	3	0	acetate ester; steroid ester	cholinergic antagonist; muscle relaxant; nicotinic antagonist
trimethaphan camsylate trimethaphan camsylate : The (S)-camphorsulfonate salt of trimethaphan.	12.19	128	8
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.	3.48	8	0	vasopressin	cardiovascular drug; hematologic agent; mitogen
propylthiouracil Propylthiouracil: A thiourea antithyroid agent. Propythiouracil inhibits the synthesis of thyroxine and inhibits the peripheral conversion of throxine to tri-iodothyronine. It is used in the treatment of hyperthyroidism. (From Martindale, The Extra Pharmacopeoia, 30th ed, p534). 6-propyl-2-thiouracil : A pyrimidinethione consisting of uracil in which the 2-oxo group is substituted by a thio group and the hydrogen at position 6 is substituted by a propyl group.	2	1	0	pyrimidinethione	antidote to paracetamol poisoning; antimetabolite; antioxidant; antithyroid drug; carcinogenic agent; EC 1.14.13.39 (nitric oxide synthase) inhibitor; hormone antagonist
etomidate Etomidate: Imidazole derivative anesthetic and hypnotic with little effect on blood gases, ventilation, or the cardiovascular system. It has been proposed as an induction anesthetic.. etomidate : The ethyl ester of 1-[(1R)-1-phenylethyl]-1H-imidazole-5-carboxylic acid. It is an intravenous general anaesthetic with no analgesic activity.	2.02	1	0	ethyl ester; imidazoles	intravenous anaesthetic; sedative
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.	2.39	2	0	N-alkylpyrrolidine; pyridines; pyrrolidin-2-ones; pyrrolidine alkaloid	antidepressant; biomarker; human xenobiotic metabolite; plant metabolite
thiopental Thiopental: A barbiturate that is administered intravenously for the induction of general anesthesia or for the production of complete anesthesia of short duration.. thiopental : A barbiturate, the structure of which is that of 2-thiobarbituric acid substituted at C-5 by ethyl and sec-pentyl groups.	4.72	7	1	barbiturates	anticonvulsant; drug allergen; environmental contaminant; intravenous anaesthetic; sedative; xenobiotic
zinc protoporphyrin ix [no description available]	1.99	1	0
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.	2.66	3	0	monocarboxylic acid; prostaglandins Falpha	human metabolite; mouse metabolite
alprostadil [no description available]	7.42	28	5	prostaglandins E	anticoagulant; human metabolite; platelet aggregation inhibitor; vasodilator agent
entacapone entacapone: structure given in first source. entacapone : A monocarboxylic acid amide that is N,N-diethylprop-2-enamide in which the hydrogen at position 2 is substituted by a cyano group and the hydrogen at the 3E position is substituted by a 3,4-dihydroxy-5-nitrophenyl group.	3.39	1	1	2-nitrophenols; catechols; monocarboxylic acid amide; nitrile	antidyskinesia agent; antiparkinson drug; central nervous system drug; EC 2.1.1.6 (catechol O-methyltransferase) inhibitor
phenylephrine hydrochloride Nose: A part of the upper respiratory tract. It contains the organ of SMELL. The term includes the external nose, the nasal cavity, and the PARANASAL SINUSES.. phenylephrine hydrochloride : A hydrochloride that is the monohydrochloride salt of phenylephrine.	2.36	2	0	hydrochloride
naloxone Naloxone: A specific opiate antagonist that has no agonist activity. It is a competitive antagonist at mu, delta, and kappa opioid receptors.. naloxone : A synthetic morphinane alkaloid that is morphinone in which the enone double bond has been reduced to a single bond, the hydrogen at position 14 has been replaced by a hydroxy group, and the methyl group attached to the nitrogen has been replaced by an allyl group. A specific opioid antagonist, it is used (commonly as its hydrochloride salt) to reverse the effects of opioids, both following their use of opioids during surgery and in cases of known or suspected opioid overdose.	2.37	2	0	morphinane alkaloid; organic heteropentacyclic compound; tertiary alcohol	antidote to opioid poisoning; central nervous system depressant; mu-opioid receptor antagonist
lobeline Lobeline: An alkaloid that has actions similar to NICOTINE on nicotinic cholinergic receptors but is less potent. It has been proposed for a variety of therapeutic uses including in respiratory disorders, peripheral vascular disorders, insomnia, and smoking cessation.	1.98	1	0
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.	3.33	7	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
dexmedetomidine [no description available]	4.39	2	2	medetomidine	alpha-adrenergic agonist; analgesic; non-narcotic analgesic; sedative
cesium Cesium: A member of the alkali metals. It has an atomic symbol Cs, atomic number 50, and atomic weight 132.91. Cesium has many industrial applications, including the construction of atomic clocks based on its atomic vibrational frequency.	1.98	1	0	alkali metal atom
rubidium Rubidium: An element that is an alkali metal. It has an atomic symbol Rb, atomic number 37, and atomic weight 85.47. It is used as a chemical reagent and in the manufacture of photoelectric cells.	1.94	1	0	alkali metal atom
veratrine Veratrine: A voltage-gated sodium channel activator.	6.94	1	0	alkaloid
enalaprilat anhydrous Enalaprilat: The active metabolite of ENALAPRIL and one of the potent, intravenously administered, ANGIOTENSIN-CONVERTING ENZYME INHIBITORS. It is an effective agent for the treatment of essential hypertension and has beneficial hemodynamic effects in heart failure. The drug produces renal vasodilation with an increase in sodium excretion.. enalaprilat dihydrate : The dihydrate form of enalaprilat, an angiotensin-converting enzyme (ACE) inhibitor that is used (often in the form of its prodrug, enalapril) in the treatment of hypertension and heart failure, for reduction of proteinuria and renal disease in patients with nephropathies, and for the prevention of stroke, myocardial infarction, and cardiac death in high-risk patients. Unlike enalapril, enalaprilat is not absorbed by mouth but is administered by intravenous injection.. enalaprilat (anhydrous) : Enalapril in which the ethyl ester group has been hydrolysed to the corresponding carboxylic acid. Enalaprilat is an angiotensin-converting enzyme (ACE) inhibitor and is used (often in the form of its prodrug, enalapril) in the treatment of hypertension and heart failure, for reduction of proteinuria and renal disease in patients with nephropathies, and for the prevention of stroke, myocardial infarction, and cardiac death in high-risk patients. Unlike enalapril, enalaprilat is not absorbed by mouth but is given by intravenous injection, usually as the dihydrate.	3.1	1	0	dicarboxylic acid; dipeptide	antihypertensive agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
saralasin Saralasin: An octapeptide analog of angiotensin II (bovine) with amino acids 1 and 8 replaced with sarcosine and alanine, respectively. It is a highly specific competitive inhibitor of angiotensin II that is used in the diagnosis of HYPERTENSION.	2.37	2	0	oligopeptide
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.	2.38	2	0	azatetracycloalkane; oxatetracycloalkane; quinazoline alkaloid	animal metabolite; bacterial metabolite; marine metabolite; neurotoxin; voltage-gated sodium channel blocker
dihydroergotoxine Dihydroergotoxine: A mixture of three different hydrogenated derivatives of ERGOTAMINE: DIHYDROERGOCORNINE; DIHYDROERGOCRISTINE; and DIHYDROERGOCRYPTINE. Dihydroergotoxine has been proposed to be a neuroprotective agent and a nootropic agent. The mechanism of its therapeutic actions is not clear, but it can act as an alpha-adrenergic antagonist and a dopamine agonist. The methanesulfonate salts of this mixture of alkaloids are called ERGOLOID MESYLATES.	3.45	2	0
chloralose Chloralose: A derivative of CHLORAL HYDRATE that was used as a sedative but has been replaced by safer and more effective drugs. Its most common use is as a general anesthetic in animal experiments.	2.86	4	0
phosphocreatine Phosphocreatine: An endogenous substance found mainly in skeletal muscle of vertebrates. It has been tried in the treatment of cardiac disorders and has been added to cardioplegic solutions. (Reynolds JEF(Ed): Martindale: The Extra Pharmacopoeia (electronic version). Micromedex, Inc, Englewood, CO, 1996). phosphagen : Any of a group of guanidine or amidine phosphates that function as storage depots for high-energy phosphate in muscle with the purpose of regenerating ATP from ADP during muscular contraction.. N-phosphocreatine : A phosphoamino acid consisting of creatine having a phospho group attached at the primary nitrogen of the guanidino group.	2.35	2	0	phosphagen; phosphoamino acid	human metabolite; mouse metabolite
oxadiazoles Oxadiazoles: Compounds containing five-membered heteroaromatic rings containing two carbons, two nitrogens, and one oxygen atom which exist in various regioisomeric forms.	1.99	1	0
pituitrin Pituitrin: A substance or extract from the neurohypophysis (PITUITARY GLAND, POSTERIOR).	5.98	15	2
acid phosphatase Acid Phosphatase: An enzyme that catalyzes the conversion of an orthophosphoric monoester and water to an alcohol and orthophosphate. EC 3.1.3.2.	1.94	1	0
nad NAD(1-) : An anionic form of nicotinamide adenine dinucleotide arising from deprotonation of the two OH groups of the diphosphate moiety.	1.94	1	0	organophosphate oxoanion	cofactor; human metabolite; hydrogen acceptor; Saccharomyces cerevisiae metabolite
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.	1.96	1	0	polypeptide
erabutoxin b erabutoxin b: RN given refers to erabutoxin b	1.96	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.	6.63	9	2	peptide hormone
s6c sarafotoxin sarafotoxins s6: several isotoxins from Atractaspis engaddensis; has strong cardiotoxic activity; all contain 21 amino acid residues; see also endothelium-derived vasoconstrictor factor	2.04	1	0
glucagon-like peptide 1 Glucagon-Like Peptide 1: A peptide of 36 or 37 amino acids that is derived from PROGLUCAGON and mainly produced by the INTESTINAL L CELLS. GLP-1(1-37 or 1-36) is further N-terminally truncated resulting in GLP-1(7-37) or GLP-1-(7-36) which can be amidated. These GLP-1 peptides are known to enhance glucose-dependent INSULIN release, suppress GLUCAGON release and gastric emptying, lower BLOOD GLUCOSE, and reduce food intake.	2.41	2	0
cardiovascular agents Cardiovascular Agents: Agents that affect the rate or intensity of cardiac contraction, blood vessel diameter, or blood volume.	1.93	1	0
neurotensin neurotensin, Tyr(11)-: RN given refers to parent cpd & (D)-isomer; RN for cpd without isomeric designation not avail 5/91	1.96	1	0	peptide hormone	human metabolite; mitogen; neurotransmitter; vulnerary
piperidines Piperidines: A family of hexahydropyridines.	1.98	1	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).	1.96	1	0
nitrophenols Nitrophenols: PHENOLS carrying nitro group substituents.	1.93	1	0
vitamin b 12 Vitamin B 12: A cobalt-containing coordination compound produced by intestinal micro-organisms and found also in soil and water. Higher plants do not concentrate vitamin B 12 from the soil and so are a poor source of the substance as compared with animal tissues. INTRINSIC FACTOR is important for the assimilation of vitamin B 12.	1.96	1	0
aconitine Aconitine: A C19 norditerpenoid alkaloid (DITERPENES) from the root of ACONITUM; DELPHINIUM and larkspurs. It activates VOLTAGE-GATED SODIUM CHANNELS. It has been used to induce ARRHYTHMIAS in experimental animals and it has anti-inflammatory and anti-neuralgic properties.. aconitine : A diterpenoid that is 20-ethyl-3alpha,13,15alpha-trihydroxy-1alpha,6alpha,16beta-trimethoxy-4-(methoxymethyl)aconitane-8,14alpha-diol having acetate and benzoate groups at the 8- and 14-positions respectively.	1.98	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.	2.4	2	0	3',5'-cyclic purine nucleotide; guanyl ribonucleotide	Escherichia coli metabolite; human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite
pralidoxime pralidoxime: RN given refers to parent cpd; chloride was minor descriptor (75-80); on-line & Index Medicus search PRALIDOXIME COMPOUNDS (66-80). pralidoxime : A pyridinium ion that is 1-methylpyridinium substituted by a (hydroxyimino)methyl group at position 2.	1.98	1	0	pyridinium ion	antidote to organophosphate poisoning; antidote to sarin poisoning; cholinergic drug; cholinesterase reactivator
allopurinol Allopurinol: A XANTHINE OXIDASE inhibitor that decreases URIC ACID production. It also acts as an antimetabolite on some simpler organisms.. allopurinol : A bicyclic structure comprising a pyrazole ring fused to a hydroxy-substituted pyrimidine ring.	1.94	1	0	nucleobase analogue; organic heterobicyclic compound	antimetabolite; EC 1.17.3.2 (xanthine oxidase) inhibitor; gout suppressant; radical scavenger
8-bromocyclic gmp 8-bromo-3',5'-cyclic GMP : A 3',5'-cyclic purine nucleotide that is 3',5'-cyclic GMP bearing an additional bromo substituent at position 8 on the guanine ring. A membrane permeable cGMP analogue that activates protein kinase G (PKG). It is 4.3-fold more potent than cGMP in activating PKG1alpha and promotes relaxation of tracheal and vascular smooth muscle tissue in vitro.	1.99	1	0	3',5'-cyclic purine nucleotide; organobromine compound	muscle relaxant; protein kinase G agonist
eye [no description available]	3.45	2	0

Condition	Indicated	Relationship Strength	Studies	Trials
Blood Pressure, High [description not available]	0	15.77	134	15
Aging The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.	0	7.88	12	7
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.	1	17.77	134	15
Menopause The last menstrual period. Permanent cessation of menses (MENSTRUATION) is usually defined after 6 to 12 months of AMENORRHEA in a woman over 45 years of age. In the United States, menopause generally occurs in women between 48 and 55 years of age.	0	4.83	2	1
Insulin Sensitivity [description not available]	0	3.48	1	1
Insulin Resistance Diminished effectiveness of INSULIN in lowering blood sugar levels: requiring the use of 200 units or more of insulin per day to prevent HYPERGLYCEMIA or KETOSIS.	1	5.48	1	1
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).	0	5.04	3	1
Multiple System Atrophy Syndrome [description not available]	0	7.62	5	4
Idiopathic Parkinson Disease [description not available]	0	2.11	1	0
Autonomic Failure, Pure [description not available]	0	2.48	2	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)	0	2.11	1	0
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)	0	7.62	5	4
Bladder Disorder, Neurogenic [description not available]	0	3.58	3	0
Urinary Bladder, Neurogenic Dysfunction of the URINARY BLADDER due to disease of the central or peripheral nervous system pathways involved in the control of URINATION. This is often associated with SPINAL CORD DISEASES, but may also be caused by BRAIN DISEASES or PERIPHERAL NERVE DISEASES.	0	3.58	3	0
Autonomic Failure, Progressive [description not available]	0	3.8	2	1
Blood Pressure, Low [description not available]	0	7.12	141	0
Craniopharyngioma, Adamantinous [description not available]	0	2.01	1	0
Craniopharyngioma A benign pituitary-region neoplasm that originates from Rathke's pouch. The two major histologic and clinical subtypes are adamantinous (or classical) craniopharyngioma and papillary craniopharyngioma. The adamantinous form presents in children and adolescents as an expanding cystic lesion in the pituitary region. The cystic cavity is filled with a black viscous substance and histologically the tumor is composed of adamantinomatous epithelium and areas of calcification and necrosis. Papillary craniopharyngiomas occur in adults, and histologically feature a squamous epithelium with papillations. (From Joynt, Clinical Neurology, 1998, Ch14, p50)	0	2.01	1	0
Diabetes Insipidus A disease that is characterized by frequent urination, excretion of large amounts of dilute URINE, and excessive THIRST. Etiologies of diabetes insipidus include deficiency of antidiuretic hormone (also known as ADH or VASOPRESSIN) secreted by the NEUROHYPOPHYSIS, impaired KIDNEY response to ADH, and impaired hypothalamic regulation of thirst.	0	2.89	4	0
Hypotension Abnormally low BLOOD PRESSURE that can result in inadequate blood flow to the brain and other vital organs. Common symptom is DIZZINESS but greater negative impacts on the body occur when there is prolonged depravation of oxygen and nutrients.	0	7.12	141	0
ANS (Autonomic Nervous System) Diseases [description not available]	0	8.01	8	4
Complex Regional Pain Syndrome [description not available]	0	2.01	1	0
Diabetic Glomerulosclerosis [description not available]	0	2.01	1	0
Ache [description not available]	0	2.9	4	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.	0	2.01	1	0
Pain An unpleasant sensation induced by noxious stimuli which are detected by NERVE ENDINGS of NOCICEPTIVE NEURONS.	0	2.9	4	0
Complex Regional Pain Syndromes Conditions characterized by pain involving an extremity or other body region, HYPERESTHESIA, and localized autonomic dysfunction following injury to soft tissue or nerve. The pain is usually associated with ERYTHEMA; SKIN TEMPERATURE changes, abnormal sudomotor activity (i.e., changes in sweating due to altered sympathetic innervation) or edema. The degree of pain and other manifestations is out of proportion to that expected from the inciting event. Two subtypes of this condition have been described: type I; (REFLEX SYMPATHETIC DYSTROPHY) and type II; (CAUSALGIA). (From Pain 1995 Oct;63(1):127-33)	0	2.01	1	0
Hyperoxia An abnormal increase in the amount of oxygen in the tissues and organs.	0	3.4	1	1
Hypercapnia A clinical manifestation of abnormal increase in the amount of carbon dioxide in arterial blood.	0	4.46	5	1
Hypocapnia Clinical manifestation consisting of a deficiency of carbon dioxide in arterial blood.	0	3.8	2	1
Apnea A transient absence of spontaneous respiration.	0	9.27	4	1
Arrhythmia, Sinoatrial [description not available]	0	2.01	1	0
Complications, Pregnancy [description not available]	0	2.33	2	0
Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	0	7.19	32	0
Hypertension, Essential [description not available]	0	1.93	1	0
Edema-Proteinuria-Hypertension Gestosis [description not available]	0	5.53	17	0
Essential Hypertension Hypertension that occurs without known cause, or preexisting renal disease. Associated polymorphisms for a number of genes have been identified, including AGT, GNB3, and ECE1. OMIM: 145500	0	1.93	1	0
Pre-Eclampsia A complication of PREGNANCY, characterized by a complex of symptoms including maternal HYPERTENSION and PROTEINURIA with or without pathological EDEMA. Symptoms may range between mild and severe. Pre-eclampsia usually occurs after the 20th week of gestation, but may develop before this time in the presence of trophoblastic disease.	0	10.53	17	0
Toxemia A condition produced by the presence of toxins or other harmful substances in the BLOOD.	0	1.93	1	0
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.	0	8.41	45	1
Electrolytes Substances that dissociate into two or more ions, to some extent, in water. Solutions of electrolytes thus conduct an electric current and can be decomposed by it (ELECTROLYSIS). (Grant & Hackh's Chemical Dictionary, 5th ed)	0	3.04	5	0
Anasarca [description not available]	0	1.93	1	0
Disease, Pulmonary [description not available]	0	2.34	2	0
Edema, Pulmonary [description not available]	0	6.1	14	0
Edema Abnormal fluid accumulation in TISSUES or body cavities. Most cases of edema are present under the SKIN in SUBCUTANEOUS TISSUE.	0	1.93	1	0
Lung Diseases Pathological processes involving any part of the LUNG.	0	2.34	2	0
Pulmonary Edema Excessive accumulation of extravascular fluid in the lung, an indication of a serious underlying disease or disorder. Pulmonary edema prevents efficient PULMONARY GAS EXCHANGE in the PULMONARY ALVEOLI, and can be life-threatening.	0	11.1	14	0
Disease A definite pathologic process with a characteristic set of signs and symptoms. It may affect the whole body or any of its parts, and its etiology, pathology, and prognosis may be known or unknown.	0	2.85	4	0
Patency of the Ductus Arteriosus [description not available]	0	3.73	2	1
Ductus Arteriosus, Patent A congenital heart defect characterized by the persistent opening of fetal DUCTUS ARTERIOSUS that connects the PULMONARY ARTERY to the descending aorta (AORTA, DESCENDING) allowing unoxygenated blood to bypass the lung and flow to the PLACENTA. Normally, the ductus is closed shortly after birth.	0	3.73	2	1
Bleeding [description not available]	0	8.36	48	1
Hemorrhage Bleeding or escape of blood from a vessel.	0	13.36	48	1
Adverse Drug Event [description not available]	0	1.93	1	0
Drug-Related Side Effects and Adverse Reactions Disorders that result from the intended use of PHARMACEUTICAL PREPARATIONS. Included in this heading are a broad variety of chemically-induced adverse conditions due to toxicity, DRUG INTERACTIONS, and metabolic effects of pharmaceuticals.	0	1.93	1	0
Circulatory Collapse [description not available]	0	3.64	10	0
Hemorrhagic Shock [description not available]	0	9.24	19	0
Shock A pathological condition manifested by failure to perfuse or oxygenate vital organs.	0	8.64	10	0
Cardiovascular Diseases Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM.	0	2.36	2	0
Hypothermia, Accidental [description not available]	0	3.19	6	0
Hypothermia Lower than normal body temperature, especially in warm-blooded animals.	0	3.19	6	0
Priapism A prolonged painful erection that may lasts hours and is not associated with sexual activity. It is seen in patients with SICKLE CELL ANEMIA, advanced malignancy, spinal trauma; and certain drug treatments.	0	2.34	2	0
Emergencies Situations or conditions requiring immediate intervention to avoid serious adverse results.	0	9	27	1
Vascular Diseases Pathological processes involving any of the BLOOD VESSELS in the cardiac or peripheral circulation. They include diseases of ARTERIES; VEINS; and rest of the vasculature system in the body.	0	2.34	2	0
Embolism, Pulmonary [description not available]	0	3.05	5	0
Pulmonary Embolism Blocking of the PULMONARY ARTERY or one of its branches by an EMBOLUS.	0	3.05	5	0
Hyperthyroid [description not available]	0	2.36	2	0
Crisis, Thyrotoxic [description not available]	0	1.93	1	0
Hyperthyroidism Hypersecretion of THYROID HORMONES from the THYROID GLAND. Elevated levels of thyroid hormones increase BASAL METABOLIC RATE.	0	2.36	2	0
Exanthem [description not available]	0	1.93	1	0
Exanthema Diseases in which skin eruptions or rashes are a prominent manifestation. Classically, six such diseases were described with similar rashes; they were numbered in the order in which they were reported. Only the fourth (Duke's disease), fifth (ERYTHEMA INFECTIOSUM), and sixth (EXANTHEMA SUBITUM) numeric designations survive as occasional synonyms in current terminology.	0	1.93	1	0
Cardiac Diseases [description not available]	0	3.04	5	0
Bouillaud Disease [description not available]	0	1.93	1	0
Heart Diseases Pathological conditions involving the HEART including its structural and functional abnormalities.	0	3.04	5	0
Rheumatic Heart Disease Cardiac manifestation of systemic rheumatological conditions, such as RHEUMATIC FEVER. Rheumatic heart disease can involve any part the heart, most often the HEART VALVES and the ENDOCARDIUM.	0	1.93	1	0
Esophageal Varices [description not available]	0	2.85	4	0
Cruveilhier-Baumgarten Syndrome Liver cirrhosis with intrahepatic portal obstruction, HYPERTENSION, and patent UMBILICAL VEINS.	0	2.86	4	0
Cirrhosis, Liver [description not available]	0	2.63	3	0
Esophageal and Gastric Varices Dilated blood vessels in the ESOPHAGUS or GASTRIC FUNDUS that shunt blood from the portal circulation (PORTAL SYSTEM) to the systemic venous circulation. Often they are observed in individuals with portal hypertension (HYPERTENSION, PORTAL).	0	2.85	4	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.	0	2.86	4	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.	0	2.63	3	0
Absence Seizure [description not available]	0	2.65	3	0
Necrosis The death of cells in an organ or tissue due to disease, injury or failure of the blood supply.	0	4.71	7	1
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.	0	2.65	3	0
Brain Vascular Disorders [description not available]	0	6.17	15	0
Aortic Diseases Pathological processes involving any part of the AORTA.	0	2.85	4	0
Cerebrovascular Disorders A spectrum of pathological conditions of impaired blood flow in the brain. They can involve vessels (ARTERIES or VEINS) in the CEREBRUM, the CEREBELLUM, and the BRAIN STEM. Major categories include INTRACRANIAL ARTERIOVENOUS MALFORMATIONS; BRAIN ISCHEMIA; CEREBRAL HEMORRHAGE; and others.	0	6.17	15	0
Anterior Choroidal Artery Infarction [description not available]	0	1.93	1	0
Anterior Circulation Transient Ischemic Attack [description not available]	0	3.74	2	1
Cerebral Infarction The formation of an area of NECROSIS in the CEREBRUM caused by an insufficiency of arterial or venous blood flow. Infarcts of the cerebrum are generally classified by hemisphere (i.e., left vs. right), lobe (e.g., frontal lobe infarction), arterial distribution (e.g., INFARCTION, ANTERIOR CEREBRAL ARTERY), and etiology (e.g., embolic infarction).	0	1.93	1	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)	0	3.74	2	1
Glaucoma An ocular disease, occurring in many forms, having as its primary characteristics an unstable or a sustained increase in the intraocular pressure which the eye cannot withstand without damage to its structure or impairment of its function. The consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches. (Dictionary of Visual Science, 4th ed)	0	1.93	1	0
Intraocular Pressure The pressure of the fluids in the eye.	0	4.25	7	0
Complication, Postoperative [description not available]	0	5.68	20	1
Postoperative Complications Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.	0	5.68	20	1
Cancer of Head [description not available]	0	2.34	2	0
Head and Neck Neoplasms Soft tissue tumors or cancer arising from the mucosal surfaces of the LIP; oral cavity; PHARYNX; LARYNX; and cervical esophagus. Other sites included are the NOSE and PARANASAL SINUSES; SALIVARY GLANDS; THYROID GLAND and PARATHYROID GLANDS; and MELANOMA and non-melanoma skin cancers of the head and neck. (from Holland et al., Cancer Medicine, 4th ed, p1651)	0	2.34	2	0
Pneumopericardium Presence of air or gas in the space between the heart and the PERICARDIUM. The degree of respiratory distress depends on the amount of trapped air and circulation blocked in the systemic and pulmonary veins.	0	1.94	1	0
Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.	0	1.94	1	0
Experimental Lung Inflammation Inflammation of any part, segment or lobe, of the lung parenchyma.	0	1.94	1	0
Pneumonia Infection of the lung often accompanied by inflammation.	0	1.94	1	0
Orbital Neoplasms Neoplasms of the bony orbit and contents except the eyeball.	0	1.94	1	0
Bright Disease A historical classification which is no longer used. It described acute glomerulonephritis, acute nephritic syndrome, or acute nephritis. Named for Richard Bright.	0	4.02	3	0
Glomerulonephritis Inflammation of the renal glomeruli (KIDNEY GLOMERULUS) that can be classified by the type of glomerular injuries including antibody deposition, complement activation, cellular proliferation, and glomerulosclerosis. These structural and functional abnormalities usually lead to HEMATURIA; PROTEINURIA; HYPERTENSION; and RENAL INSUFFICIENCY.	0	4.02	3	0
Anoxemia [description not available]	0	4.59	6	1
Anemia A reduction in the number of circulating ERYTHROCYTES or in the quantity of HEMOGLOBIN.	0	1.94	1	0
Hypoxia Sub-optimal OXYGEN levels in the ambient air of living organisms.	0	4.59	6	1
Hematochezia The passage of bright red blood from the rectum. The blood may or may not be mixed with formed stool in the form of blood, blood clots, bloody stool or diarrhea.	0	3.04	5	0
Liver Dysfunction [description not available]	0	2.34	2	0
Gastritis Inflammation of the GASTRIC MUCOSA, a lesion observed in a number of unrelated disorders.	0	2.35	2	0
Gastrointestinal Hemorrhage Bleeding in any segment of the GASTROINTESTINAL TRACT from ESOPHAGUS to RECTUM.	0	3.04	5	0
Hemorrhoids Swollen veins in the lower part of the RECTUM or ANUS. Hemorrhoids can be inside the anus (internal), under the skin around the anus (external), or protruding from inside to outside of the anus. People with hemorrhoids may or may not exhibit symptoms which include bleeding, itching, and pain.	0	1.94	1	0
Liver Diseases Pathological processes of the LIVER.	0	2.34	2	0
Eye Disorders [description not available]	0	1.93	1	0
Eye Diseases Diseases affecting the eye.	0	1.93	1	0
Injuries Used with anatomic headings, animals, and sports for wounds and injuries. Excludes cell damage, for which pathology is used.	0	2.63	3	0
Wounds and Injuries Damage inflicted on the body as the direct or indirect result of an external force, with or without disruption of structural continuity.	0	2.63	3	0
Hypovolemic [description not available]	0	2.34	2	0
Hypovolemia An abnormally low volume of blood circulating through the body. It may result in hypovolemic shock (see SHOCK).	0	2.34	2	0
Coarctation of Aorta [description not available]	0	3.04	5	0
Constriction, Pathological [description not available]	0	1.94	1	0
Aortic Coarctation A birth defect characterized by the narrowing of the AORTA that can be of varying degree and at any point from the transverse arch to the iliac bifurcation. Aortic coarctation causes arterial HYPERTENSION before the point of narrowing and arterial HYPOTENSION beyond the narrowed portion.	0	3.04	5	0
Constriction, Pathologic The condition of an anatomical structure's being constricted beyond normal dimensions.	0	1.94	1	0
Nasal Bleeding [description not available]	0	1.94	1	0
Angioma A vascular anomaly due to proliferation of blood or lymphatic vessels that forms a tumor-like mass. Vessels in the angioma may or may not be dilated.	0	1.94	1	0
Cancer of Nasopharynx [description not available]	0	2.34	2	0
Benign Neoplasms [description not available]	0	1.94	1	0
Angioma, Sclerosing [description not available]	0	1.94	1	0
Angiofibroma A benign neoplasm of fibrous tissue in which there are numerous small and large, frequently dilated, vascular channels. (Stedman, 25th ed)	0	1.94	1	0
Epistaxis Bleeding from the nose.	0	1.94	1	0
Hemangioma A vascular anomaly due to proliferation of BLOOD VESSELS that forms a tumor-like mass. The common types involve CAPILLARIES and VEINS. It can occur anywhere in the body but is most frequently noticed in the SKIN and SUBCUTANEOUS TISSUE. (from Stedman, 27th ed, 2000)	0	1.94	1	0
Nasopharyngeal Neoplasms Tumors or cancer of the NASOPHARYNX.	0	2.34	2	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.	0	1.94	1	0
Histiocytoma, Benign Fibrous A benign tumor composed, wholly or in part, of cells with the morphologic characteristics of HISTIOCYTES and with various fibroblastic components. Fibrous histiocytomas can occur anywhere in the body. When they occur in the skin, they are called dermatofibromas or sclerosing hemangiomas. (From DeVita Jr et al., Cancer: Principles & Practice of Oncology, 5th ed, p1747)	0	1.94	1	0
Metabolic Acidosis [description not available]	0	4.58	6	1
Aneurysm, Aortic [description not available]	0	7.38	45	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.	0	4.58	6	1
Aortic Aneurysm An abnormal balloon- or sac-like dilatation in the wall of AORTA.	0	7.38	45	0
Intraventricular Septal Defects [description not available]	0	1.94	1	0
Pulmonary Hypertension [description not available]	0	2.63	3	0
Cardiac Septal Defect [description not available]	0	2.35	2	0
Heart Septal Defects, Ventricular Developmental abnormalities in any portion of the VENTRICULAR SEPTUM resulting in abnormal communications between the two lower chambers of the heart. Classification of ventricular septal defects is based on location of the communication, such as perimembranous, inlet, outlet (infundibular), central muscular, marginal muscular, or apical muscular defect.	0	1.94	1	0
Hypertension, Pulmonary Increased VASCULAR RESISTANCE in the PULMONARY CIRCULATION, usually secondary to HEART DISEASES or LUNG DISEASES.	0	2.63	3	0
Hypertension, Renal Persistent high BLOOD PRESSURE due to KIDNEY DISEASES, such as those involving the renal parenchyma, the renal vasculature, or tumors that secrete RENIN.	0	4.08	16	0
Hypotension, Postural [description not available]	0	2.89	4	0
Nephritis Inflammation of any part of the KIDNEY.	0	1.94	1	0
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.	0	2.89	4	0
Uremia A clinical syndrome associated with the retention of renal waste products or uremic toxins in the blood. It is usually the result of RENAL INSUFFICIENCY. Most uremic toxins are end products of protein or nitrogen CATABOLISM, such as UREA or CREATININE. Severe uremia can lead to multiple organ dysfunctions with a constellation of symptoms.	0	3.26	2	0
Endotoxin Shock [description not available]	0	3.04	5	0
Shock, Septic Sepsis associated with HYPOTENSION or hypoperfusion despite adequate fluid resuscitation. Perfusion abnormalities may include but are not limited to LACTIC ACIDOSIS; OLIGURIA; or acute alteration in mental status.	0	3.04	5	0
Coronary Heart Disease [description not available]	0	7.16	12	1
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.	0	7.16	12	1
Varices [description not available]	0	1.94	1	0
Varicose Veins Enlarged and tortuous VEINS.	0	1.94	1	0
Aortic Dissection [description not available]	0	5.36	10	0
Leanness [description not available]	0	2.95	1	0
Acute Disease Disease having a short and relatively severe course.	0	7.06	18	2
Ganglion Cysts Nodular tumor-like lesions or mucoid flesh, arising from tendon sheaths, LIGAMENTS, or JOINT CAPSULE, especially of the hands, wrists, or feet. They are not true cysts as they lack epithelial wall. They are distinguished from SYNOVIAL CYSTS by the lack of communication with a joint cavity or the SYNOVIAL MEMBRANE.	0	3.42	1	1
Deep Vein Thrombosis [description not available]	0	2.03	1	0
Apnea, Sleep [description not available]	0	2.03	1	0
Hypernatremia Excessive amount of sodium in the blood. (Dorland, 27th ed)	0	2.38	2	0
Sleep Apnea Syndromes Disorders characterized by multiple cessations of respirations during sleep that induce partial arousals and interfere with the maintenance of sleep. Sleep apnea syndromes are divided into central (see SLEEP APNEA, CENTRAL), obstructive (see SLEEP APNEA, OBSTRUCTIVE), and mixed central-obstructive types.	0	2.03	1	0
Venous Thrombosis The formation or presence of a blood clot (THROMBUS) within a vein.	0	2.03	1	0
Pheochromocytoma, Extra-Adrenal [description not available]	0	5.8	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)	0	5.8	10	0
Panic Attacks [description not available]	0	2.03	1	0
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.	0	2.03	1	0
Carotid Artery Thrombosis Blood clot formation in any part of the CAROTID ARTERIES. This may produce CAROTID STENOSIS or occlusion of the vessel, leading to TRANSIENT ISCHEMIC ATTACK; CEREBRAL INFARCTION; or AMAUROSIS FUGAX.	0	1.94	1	0
Alkalosis A pathological condition that removes acid or adds base to the body fluids.	0	1.94	1	0
Hyperventilation A pulmonary ventilation rate faster than is metabolically necessary for the exchange of gases. It is the result of an increased frequency of breathing, an increased tidal volume, or a combination of both. It causes an excess intake of oxygen and the blowing off of carbon dioxide.	0	2.65	3	0
Fusiform Aneurysm Elongated, spindle-shaped dilation in the wall of blood vessels, usually large ARTERIES with ATHEROSCLEROSIS.	0	2.64	3	0
Marfan Syndrome, Type I [description not available]	0	1.94	1	0
Great Pox [description not available]	0	2.35	2	0
Aneurysm Pathological outpouching or sac-like dilatation in the wall of any blood vessel (ARTERIES or VEINS) or the heart (HEART ANEURYSM). It indicates a thin and weakened area in the wall which may later rupture. Aneurysms are classified by location, etiology, or other characteristics.	0	2.64	3	0
Marfan Syndrome An autosomal dominant disorder of CONNECTIVE TISSUE with abnormal features in the heart, the eye, and the skeleton. Cardiovascular manifestations include MITRAL VALVE PROLAPSE, dilation of the AORTA, and aortic dissection. Other features include lens displacement (ectopia lentis), disproportioned long limbs and enlarged DURA MATER (dural ectasia). Marfan syndrome (type 1) is associated with mutations in the gene encoding FIBRILLIN-1 (FBN1), a major element of extracellular microfibrils of connective tissue. Mutations in the gene encoding TYPE II TGF-BETA RECEPTOR (TGFBR2) are associated with Marfan syndrome type 2.	0	1.94	1	0
Syphilis A contagious venereal disease caused by the spirochete TREPONEMA PALLIDUM.	0	2.35	2	0
Hospital-Acquired Condition [description not available]	0	2.35	2	0
Abnormal Deep Tendon Reflex [description not available]	0	2.87	1	0
Injuries, Spinal Cord [description not available]	0	3.27	2	0
Reflex, Abnormal An abnormal response to a stimulus applied to the sensory components of the nervous system. This may take the form of increased, decreased, or absent reflexes.	0	2.87	1	0
Spinal Cord Injuries Penetrating and non-penetrating injuries to the spinal cord resulting from traumatic external forces (e.g., WOUNDS, GUNSHOT; WHIPLASH INJURIES; etc.).	0	3.27	2	0
Scoliosis An appreciable lateral deviation in the normally straight vertical line of the spine. (Dorland, 27th ed)	0	9.44	5	1
Abdomen, Acute A clinical syndrome with acute abdominal pain that is severe, localized, and rapid in onset. Acute abdomen may be caused by a variety of disorders, injuries, or diseases.	0	1.96	1	0
Peritoneal Diseases Pathological processes involving the PERITONEUM.	0	1.96	1	0
Symptom Cluster [description not available]	0	3.57	3	0
Syndrome A characteristic symptom complex.	0	3.57	3	0
Complications, Labor [description not available]	0	2.36	2	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.	0	3.83	12	0
Muscle Relaxation That phase of a muscle twitch during which a muscle returns to a resting position.	0	3.79	4	0
Cardiomyopathy, Hypertrophic Obstructive [description not available]	0	1.95	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).	0	1.95	1	0
ENT Diseases [description not available]	0	2.36	2	0
Aneurysm, Anterior Cerebral Artery [description not available]	0	7.03	19	1
Arteriovenous Malformations, Cerebral [description not available]	0	3.28	2	0
Hemorrhage, Subarachnoid [description not available]	0	3.97	5	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 (	0	12.03	19	1
Intracranial Arteriovenous Malformations Congenital vascular anomalies in the brain characterized by direct communication between an artery and a vein without passing through the CAPILLARIES. The locations and size of the shunts determine the symptoms including HEADACHES; SEIZURES; STROKE; INTRACRANIAL HEMORRHAGES; mass effect; and vascular steal effect.	0	3.28	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.	0	3.97	5	0
Brain Disorders [description not available]	0	6.65	16	0
Malignant Hypertension [description not available]	0	6.59	15	0
Brain Diseases Pathologic conditions affecting the BRAIN, which is composed of the intracranial components of the CENTRAL NERVOUS SYSTEM. This includes (but is not limited to) the CEREBRAL CORTEX; intracranial white matter; BASAL GANGLIA; THALAMUS; HYPOTHALAMUS; BRAIN STEM; and CEREBELLUM.	0	6.65	16	0
Eclampsia Onset of HYPERREFLEXIA; SEIZURES; or COMA in a previously diagnosed pre-eclamptic patient (PRE-ECLAMPSIA).	0	5.04	7	0
Hypertension, Malignant A condition of markedly elevated BLOOD PRESSURE with DIASTOLIC PRESSURE usually greater than 120 mm Hg. Malignant hypertension is characterized by widespread vascular damage, PAPILLEDEMA, retinopathy, HYPERTENSIVE ENCEPHALOPATHY, and renal dysfunction.	0	6.59	15	0
Benign Neoplasms, Brain [description not available]	0	3.04	5	0
Brain Hemorrhage, Cerebral [description not available]	0	6.34	9	1
Acquired Encephalocele [description not available]	0	2.36	2	0
Glial Cell Tumors [description not available]	0	1.96	1	0
Complication, Intraoperative [description not available]	0	6.52	9	6
Brain Neoplasms Neoplasms of the intracranial components of the central nervous system, including the cerebral hemispheres, basal ganglia, hypothalamus, thalamus, brain stem, and cerebellum. Brain neoplasms are subdivided into primary (originating from brain tissue) and secondary (i.e., metastatic) forms. Primary neoplasms are subdivided into benign and malignant forms. In general, brain tumors may also be classified by age of onset, histologic type, or presenting location in the brain.	0	3.04	5	0
Cerebral Hemorrhage Bleeding into one or both CEREBRAL HEMISPHERES including the BASAL GANGLIA and the CEREBRAL CORTEX. It is often associated with HYPERTENSION and CRANIOCEREBRAL TRAUMA.	0	6.34	9	1
Glioma Benign and malignant central nervous system neoplasms derived from glial cells (i.e., astrocytes, oligodendrocytes, and ependymocytes). Astrocytes may give rise to astrocytomas (ASTROCYTOMA) or glioblastoma multiforme (see GLIOBLASTOMA). Oligodendrocytes give rise to oligodendrogliomas (OLIGODENDROGLIOMA) and ependymocytes may undergo transformation to become EPENDYMOMA; CHOROID PLEXUS NEOPLASMS; or colloid cysts of the third ventricle. (From Escourolle et al., Manual of Basic Neuropathology, 2nd ed, p21)	0	1.96	1	0
Anterior Fascicular Block [description not available]	0	2.37	2	0
A-V Dissociation [description not available]	0	2.36	2	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.	0	2.36	2	0
Cerebral Ischemia [description not available]	0	3.59	9	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.	0	3.59	9	0
Angor Pectoris [description not available]	0	1.96	1	0
Gallstone Disease [description not available]	0	1.96	1	0
Angina Pectoris The symptom of paroxysmal pain consequent to MYOCARDIAL ISCHEMIA usually of distinctive character, location and radiation. It is thought to be provoked by a transient stressful situation during which the oxygen requirements of the MYOCARDIUM exceed that supplied by the CORONARY CIRCULATION.	0	1.96	1	0
Cholelithiasis Presence or formation of GALLSTONES in the BILIARY TRACT, usually in the gallbladder (CHOLECYSTOLITHIASIS) or the common bile duct (CHOLEDOCHOLITHIASIS).	0	1.96	1	0
Cardiac Failure [description not available]	0	11.1	19	6
Cardiovascular Stroke [description not available]	0	6.42	9	2
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.	0	11.1	19	6
Myocardial Infarction NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION).	0	6.42	9	2
Drug Withdrawal Symptoms [description not available]	0	2.87	1	0
Cardiovascular Pregnancy Complications [description not available]	0	4.72	7	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.	0	2.87	1	0
Hypergonadotropic Hypogonadism [description not available]	0	1.96	1	0
Water-Electrolyte Imbalance Disturbances in the body's WATER-ELECTROLYTE BALANCE.	0	1.96	1	0
Hypogonadism Condition resulting from deficient gonadal functions, such as GAMETOGENESIS and the production of GONADAL STEROID HORMONES. It is characterized by delay in GROWTH, germ cell maturation, and development of secondary sex characteristics. Hypogonadism can be due to a deficiency of GONADOTROPINS (hypogonadotropic hypogonadism) or due to primary gonadal failure (hypergonadotropic hypogonadism).	0	1.96	1	0
Breast Diseases Pathological processes of the BREAST.	0	1.95	1	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.	0	8.05	5	0
Cardiomyopathies, Primary [description not available]	0	1.95	1	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).	0	1.95	1	0
Goldblatt Syndrome [description not available]	0	1.95	1	0
Hypertension, Renovascular Hypertension due to RENAL ARTERY OBSTRUCTION or compression.	0	1.95	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)	0	6.98	1	0
Poisoning Used with drugs, chemicals, and industrial materials for human or animal poisoning, acute or chronic, whether the poisoning is accidental, occupational, suicidal, by medication error, or by environmental exposure.	0	2.36	2	0
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)	0	1.98	1	0
Hyperglycemia, Postprandial Abnormally high BLOOD GLUCOSE level after a meal.	0	1.98	1	0
Hyperglycemia Abnormally high BLOOD GLUCOSE level.	0	1.98	1	0
Chronic Illness [description not available]	0	3.2	6	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).	0	3.2	6	0
Blood Loss, Surgical Loss of blood during a surgical procedure.	0	3.37	1	1
Alcoholic Intoxication An acute brain syndrome which results from the excessive ingestion of ETHANOL or ALCOHOLIC BEVERAGES.	0	1.98	1	0
Arrhythmia [description not available]	0	6.07	6	2
Coronary Artery Vasospasm [description not available]	0	1.98	1	0
Benign Meningeal Neoplasms [description not available]	0	1.98	1	0
Angioblastic Meningioma [description not available]	0	2.36	2	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.	0	6.07	6	2
Coronary Vasospasm Spasm of the large- or medium-sized coronary arteries.	0	1.98	1	0
Meningeal Neoplasms Benign and malignant neoplastic processes that arise from or secondarily involve the meningeal coverings of the brain and spinal cord.	0	1.98	1	0
Meningioma A relatively common neoplasm of the CENTRAL NERVOUS SYSTEM that arises from arachnoidal cells. The majority are well differentiated vascular tumors which grow slowly and have a low potential to be invasive, although malignant subtypes occur. Meningiomas have a predilection to arise from the parasagittal region, cerebral convexity, sphenoidal ridge, olfactory groove, and SPINAL CANAL. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, pp2056-7)	0	2.36	2	0
Drug Overdose Accidental or deliberate use of a medication or street drug in excess of normal dosage.	0	1.99	1	0
Fasting Hypoglycemia HYPOGLYCEMIA expressed in the postabsorptive state, after prolonged FASTING, or an overnight fast.	0	4.74	7	1
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.	0	4.74	7	1
Tachyarrhythmia [description not available]	0	4.96	9	1
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.	0	9.96	9	1
Dejerine-Roussy Syndrome [description not available]	0	3.38	1	1
Hematoma A collection of blood outside the BLOOD VESSELS. Hematoma can be localized in an organ, space, or tissue.	0	3.76	2	1
Arterial Obstructive Diseases [description not available]	0	2.37	2	0
Carotid Artery Narrowing [description not available]	0	2	1	0
Arterial Diseases, Cerebral [description not available]	0	2.65	3	0
Arterial Occlusive Diseases Pathological processes which result in the partial or complete obstruction of ARTERIES. They are characterized by greatly reduced or absence of blood flow through these vessels. They are also known as arterial insufficiency.	0	2.37	2	0
Cerebral Arterial Diseases Pathological conditions of intracranial ARTERIES supplying the CEREBRUM. These diseases often are due to abnormalities or pathological processes in the ANTERIOR CEREBRAL ARTERY; MIDDLE CEREBRAL ARTERY; and POSTERIOR CEREBRAL ARTERY.	0	2.65	3	0
Carotid Stenosis Narrowing or stricture of any part of the CAROTID ARTERIES, most often due to atherosclerotic plaque formation. Ulcerations may form in atherosclerotic plaques and induce THROMBUS formation. Platelet or cholesterol emboli may arise from stenotic carotid lesions and induce a TRANSIENT ISCHEMIC ATTACK; CEREBROVASCULAR ACCIDENT; or temporary blindness (AMAUROSIS FUGAX). (From Adams et al., Principles of Neurology, 6th ed, pp 822-3)	0	2	1	0
Cancer of Gastrointestinal Tract [description not available]	0	2	1	0
Genetic Predisposition [description not available]	0	2	1	0
Diseases in Twins Disorders affecting TWINS, one or both, at any age.	0	2	1	0
Drop Attack [description not available]	0	2	1	0
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)	0	2	1	0
Cardiac Complex, Premature [description not available]	0	2	1	0
Algodystrophic Syndrome [description not available]	0	2	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)	0	2	1	0
Central Hypothyroidism [description not available]	0	2	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.	0	2	1	0
Dizzyness [description not available]	0	3.39	1	1
Dizziness An imprecise term which may refer to a sense of spatial disorientation, motion of the environment, or lightheadedness.	0	3.39	1	1
Adrenal Cancer [description not available]	0	5.15	6	0
Breast Cancer [description not available]	0	1.95	1	0
Breast Neoplasms Tumors or cancer of the human BREAST.	0	1.95	1	0
Brain Swelling [description not available]	0	4.83	8	0
Acute Brain Injuries [description not available]	0	2.64	3	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)	0	4.83	8	0
Brain Injuries Acute and chronic (see also BRAIN INJURIES, CHRONIC) injuries to the brain, including the cerebral hemispheres, CEREBELLUM, and BRAIN STEM. Clinical manifestations depend on the nature of injury. Diffuse trauma to the brain is frequently associated with DIFFUSE AXONAL INJURY or COMA, POST-TRAUMATIC. Localized injuries may be associated with NEUROBEHAVIORAL MANIFESTATIONS; HEMIPARESIS, or other focal neurologic deficits.	0	2.64	3	0
Hypoproteinemia A condition in which total serum protein level is below the normal range. Hypoproteinemia can be caused by protein malabsorption in the gastrointestinal tract, EDEMA, or PROTEINURIA.	0	1.95	1	0
Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases.	0	4.12	6	0
Hypokalemia Abnormally low potassium concentration in the blood. It may result from potassium loss by renal secretion or by the gastrointestinal route, as by vomiting or diarrhea. It may be manifested clinically by neuromuscular disorders ranging from weakness to paralysis, by electrocardiographic abnormalities (depression of the T wave and elevation of the U wave), by renal disease, and by gastrointestinal disorders. (Dorland, 27th ed)	0	2.35	2	0
Hypocalcemia Reduction of the blood calcium below normal. Manifestations include hyperactive deep tendon reflexes, Chvostek's sign, muscle and abdominal cramps, and carpopedal spasm. (Dorland, 27th ed)	0	1.95	1	0
Carcinoma, Bronchial [description not available]	0	1.95	1	0
Cancer of Kidney [description not available]	0	1.95	1	0
Cancer of Lung [description not available]	0	2.35	2	0
Experimental Neoplasms [description not available]	0	2.35	2	0
Carcinoma, Bronchogenic Malignant neoplasm arising from the epithelium of the BRONCHI. It represents a large group of epithelial lung malignancies which can be divided into two clinical groups: SMALL CELL LUNG CANCER and NON-SMALL-CELL LUNG CARCINOMA.	0	1.95	1	0
Kidney Neoplasms Tumors or cancers of the KIDNEY.	0	1.95	1	0
Lung Neoplasms Tumors or cancer of the LUNG.	0	2.35	2	0
Soft Tissue Neoplasms Neoplasms of whatever cell type or origin, occurring in the extraskeletal connective tissue framework of the body including the organs of locomotion and their various component structures, such as nerves, blood vessels, lymphatics, etc.	0	1.95	1	0
Kidney Diseases Pathological processes of the KIDNEY or its component tissues.	0	2.64	3	0
Renal Artery Stenosis [description not available]	0	3.55	9	0
Polyuria Urination of a large volume of urine with an increase in urinary frequency, commonly seen in diabetes (DIABETES MELLITUS; DIABETES INSIPIDUS).	0	1.95	1	0
Renal Artery Obstruction Narrowing or occlusion of the RENAL ARTERY or arteries. It is due usually to ATHEROSCLEROSIS; FIBROMUSCULAR DYSPLASIA; THROMBOSIS; EMBOLISM, or external pressure. The reduced renal perfusion can lead to renovascular hypertension (HYPERTENSION, RENOVASCULAR).	0	3.55	9	0
Flaccid Quadriplegia [description not available]	0	1.95	1	0
Alcohol Abuse [description not available]	0	1.95	1	0
Diaphragmatic Paralysis [description not available]	0	1.95	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)	0	1.95	1	0
Myelopathy [description not available]	0	1.95	1	0
Bladder Calculi [description not available]	0	1.95	1	0
Spinal Cord Diseases Pathologic conditions which feature SPINAL CORD damage or dysfunction, including disorders involving the meninges and perimeningeal spaces surrounding the spinal cord. Traumatic injuries, vascular diseases, infections, and inflammatory/autoimmune processes may affect the spinal cord.	0	1.95	1	0
Anaphylactic Reaction [description not available]	0	1.95	1	0
Allergy, Drug [description not available]	0	1.95	1	0
Anaphylaxis An acute hypersensitivity reaction due to exposure to a previously encountered ANTIGEN. The reaction may include rapidly progressing URTICARIA, respiratory distress, vascular collapse, systemic SHOCK, and death.	0	1.95	1	0
Drug Hypersensitivity Immunologically mediated adverse reactions to medicinal substances used legally or illegally.	0	1.95	1	0
Cryptogenic Infantile Spasms [description not available]	0	1.95	1	0
Spasms, Infantile An epileptic syndrome characterized by the triad of infantile spasms, hypsarrhythmia, and arrest of psychomotor development at seizure onset. The majority present between 3-12 months of age, with spasms consisting of combinations of brief flexor or extensor movements of the head, trunk, and limbs. The condition is divided into two forms: cryptogenic (idiopathic) and symptomatic (secondary to a known disease process such as intrauterine infections; nervous system abnormalities; BRAIN DISEASES, METABOLIC, INBORN; prematurity; perinatal asphyxia; TUBEROUS SCLEROSIS; etc.). (From Menkes, Textbook of Child Neurology, 5th ed, pp744-8)	0	1.95	1	0
Cancer of Eye [description not available]	0	4.67	2	1
Malignant Melanoma [description not available]	0	3.36	1	1
Melanoma A malignant neoplasm derived from cells that are capable of forming melanin, which may occur in the skin of any part of the body, in the eye, or, rarely, in the mucous membranes of the genitalia, anus, oral cavity, or other sites. It occurs mostly in adults and may originate de novo or from a pigmented nevus or malignant lentigo. Melanomas frequently metastasize widely, and the regional lymph nodes, liver, lungs, and brain are likely to be involved. The incidence of malignant skin melanomas is rising rapidly in all parts of the world. (Stedman, 25th ed; from Rook et al., Textbook of Dermatology, 4th ed, p2445)	0	3.36	1	1
Thrombocytopathy [description not available]	0	1.97	1	0
Blood Platelet Disorders Disorders caused by abnormalities in platelet count or function.	0	1.97	1	0
Hyponatremia Deficiency of sodium in the blood; salt depletion. (Dorland, 27th ed)	0	1.97	1	0
Bernard Syndrome [description not available]	0	1.97	1	0
Mydriasis Dilation of pupils to greater than 6 mm combined with failure of the pupils to constrict when stimulated with light. This condition may occur due to injury of the pupillary fibers in the oculomotor nerve, in acute angle-closure glaucoma, and in ADIE SYNDROME.	0	1.97	1	0
Basilar Artery Insufficiency [description not available]	0	1.97	1	0
Autoimmune Diabetes [description not available]	0	1.96	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.	0	1.96	1	0
Benign Intracranial Hypertension [description not available]	0	3.29	2	0
Pseudotumor Cerebri A condition marked by raised intracranial pressure and characterized clinically by HEADACHES; NAUSEA; PAPILLEDEMA, peripheral constriction of the visual fields, transient visual obscurations, and pulsatile TINNITUS. OBESITY is frequently associated with this condition, which primarily affects women between 20 and 44 years of age. Chronic PAPILLEDEMA may lead to optic nerve injury (see OPTIC NERVE DISEASES) and visual loss (see BLINDNESS).	0	3.29	2	0
Diabetes Insipidus and Mellitus with Optic Atrophy and Deafness [description not available]	0	1.97	1	0
Wolfram Syndrome A hereditary condition characterized by multiple symptoms including those of DIABETES INSIPIDUS; DIABETES MELLITUS; OPTIC ATROPHY; and DEAFNESS. This syndrome is also known as DIDMOAD (first letter of each word) and is usually associated with VASOPRESSIN deficiency. It is caused by mutations in gene WFS1 encoding wolframin, a 100-kDa transmembrane protein.	0	1.97	1	0
Granulomatosis, Wegener's [description not available]	0	2.38	2	0
Granulomatosis with Polyangiitis A multisystemic disease of a complex genetic background. It is characterized by inflammation of the blood vessels (VASCULITIS) leading to damage in any number of organs. The common features include granulomatous inflammation of the RESPIRATORY TRACT and KIDNEYS. Most patients have measurable autoantibodies (ANTINEUTROPHIL CYTOPLASMIC ANTIBODIES) against MYELOBLASTIN.	0	2.38	2	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.	0	1.97	1	0
Aortitis Syndrome [description not available]	0	1.96	1	0
Takayasu Arteritis A chronic inflammatory process that affects the AORTA and its primary branches, such as the brachiocephalic artery (BRACHIOCEPHALIC TRUNK) and CAROTID ARTERIES. It results in progressive arterial stenosis, occlusion, and aneurysm formation. The pulse in the arm is hard to detect. Patients with aortitis syndrome often exhibit retinopathy.	0	1.96	1	0
Bradyarrhythmia [description not available]	0	3.35	1	1
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.	0	3.35	1	1
Craniofacial Dysarthrosis [description not available]	0	1.97	1	0
Hemorrhage, Retinal [description not available]	0	1.96	1	0
Carotid Arteriopathies, Traumatic [description not available]	0	1.95	1	0
Rupture Forcible or traumatic tear or break of an organ or other soft part of the body.	0	1.95	1	0
Arteriosclerosis, Coronary [description not available]	0	1.94	1	0
Coronary Artery Disease Pathological processes of CORONARY ARTERIES that may derive from a congenital abnormality, atherosclerotic, or non-atherosclerotic cause.	0	1.94	1	0
Auricular Fibrillation [description not available]	0	1.95	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.	0	1.95	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.	0	1.95	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.	0	1.95	1	0
Shock, Traumatic Shock produced as a result of trauma.	0	2.35	2	0
Arteriosclerosis Thickening and loss of elasticity of the walls of ARTERIES of all sizes. There are many forms classified by the types of lesions and arteries involved, such as ATHEROSCLEROSIS with fatty lesions in the ARTERIAL INTIMA of medium and large muscular arteries.	0	1.94	1	0
Aneurysm, Arteriovenous [description not available]	0	1.94	1	0
Blood Clot [description not available]	0	1.94	1	0
Thrombosis Formation and development of a thrombus or blood clot in the blood vessel.	0	1.94	1	0
Intermittent Claudication A symptom complex characterized by pain and weakness in SKELETAL MUSCLE group associated with exercise, such as leg pain and weakness brought on by walking. Such muscle limpness disappears after a brief rest and is often relates to arterial STENOSIS; muscle ISCHEMIA; and accumulation of LACTATE.	0	1.94	1	0
Amentia [description not available]	0	1.95	1	0
Aura [description not available]	0	1.95	1	0
Hysteria Historical term for a chronic, but fluctuating, disorder beginning in early life and characterized by recurrent and multiple somatic complaints not apparently due to physical illness. This diagnosis is not used in contemporary practice.	0	1.95	1	0
Dementia An acquired organic mental disorder with loss of intellectual abilities of sufficient severity to interfere with social or occupational functioning. The dysfunction is multifaceted and involves memory, behavior, personality, judgment, attention, spatial relations, language, abstract thought, and other executive functions. The intellectual decline is usually progressive, and initially spares the level of consciousness.	0	1.95	1	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)	0	1.95	1	0
Craniocerebral Injuries [description not available]	0	1.95	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.	0	1.95	1	0
Cushing's Syndrome [description not available]	0	1.94	1	0
Aldosteronism [description not available]	0	1.94	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.	0	1.94	1	0
Hyperaldosteronism A condition caused by the overproduction of ALDOSTERONE. It is characterized by sodium retention and potassium excretion with resultant HYPERTENSION and HYPOKALEMIA.	0	1.94	1	0
Carcinoma, Anaplastic [description not available]	0	1.94	1	0
Abscess, Pulmonary [description not available]	0	1.94	1	0
Centriacinar Emphysema [description not available]	0	1.94	1	0
Alveolitis, Fibrosing [description not available]	0	1.94	1	0
Acute Hypercapnic Respiratory Failure [description not available]	0	2.64	3	0
Pulmonary Consumption [description not available]	0	1.94	1	0
Carcinoma A malignant neoplasm made up of epithelial cells tending to infiltrate the surrounding tissues and give rise to metastases. It is a histological type of neoplasm and not a synonym for cancer.	0	1.94	1	0
Lung Abscess Solitary or multiple collections of PUS within the lung parenchyma as a result of infection by bacteria, protozoa, or other agents.	0	1.94	1	0
Pulmonary Fibrosis A process in which normal lung tissues are progressively replaced by FIBROBLASTS and COLLAGEN causing an irreversible loss of the ability to transfer oxygen into the bloodstream via PULMONARY ALVEOLI. Patients show progressive DYSPNEA finally resulting in death.	0	1.94	1	0
Respiratory Insufficiency Failure to adequately provide oxygen to cells of the body and to remove excess carbon dioxide from them. (Stedman, 25th ed)	0	2.64	3	0
Tuberculosis, Pulmonary MYCOBACTERIUM infections of the lung.	0	1.94	1	0
Blood Poisoning [description not available]	0	1.94	1	0
Sepsis Systemic inflammatory response syndrome with a proven or suspected infectious etiology. When sepsis is associated with organ dysfunction distant from the site of infection, it is called severe sepsis. When sepsis is accompanied by HYPOTENSION despite adequate fluid infusion, it is called SEPTIC SHOCK.	0	1.94	1	0
Extravascular Hemolysis [description not available]	0	1.94	1	0
Hemolysis The destruction of ERYTHROCYTES by many different causal agents such as antibodies, bacteria, chemicals, temperature, and changes in tonicity.	0	1.94	1	0
Bone Fractures [description not available]	0	1.94	1	0
Fractures, Bone Breaks in bones.	0	1.94	1	0
Necrotizing Pyelonephritis [description not available]	0	1.95	1	0
Pyelonephritis Inflammation of the KIDNEY involving the renal parenchyma (the NEPHRONS); KIDNEY PELVIS; and KIDNEY CALICES. It is characterized by ABDOMINAL PAIN; FEVER; NAUSEA; VOMITING; and occasionally DIARRHEA.	0	1.95	1	0
Aortic Incompetence [description not available]	0	2.35	2	0
Chylopericardium [description not available]	0	1.95	1	0
Aortic Valve Insufficiency Pathological condition characterized by the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to regurgitation. It is caused by diseases of the AORTIC VALVE or its surrounding tissue (aortic root).	0	2.35	2	0
Pericardial Effusion Fluid accumulation within the PERICARDIUM. Serous effusions are associated with pericardial diseases. Hemopericardium is associated with trauma. Lipid-containing effusion (chylopericardium) results from leakage of THORACIC DUCT. Severe cases can lead to CARDIAC TAMPONADE.	0	1.95	1	0
Asystole [description not available]	0	1.95	1	0
Heart Arrest Cessation of heart beat or MYOCARDIAL CONTRACTION. If it is treated within a few minutes, heart arrest can be reversed in most cases to normal cardiac rhythm and effective circulation.	0	1.95	1	0
Aortic Aneurysm, Ruptured [description not available]	0	4.36	8	0
Shock, Surgical A type of shock that occurs as a result of a surgical procedure.	0	1.95	1	0
Fistula Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body.	0	1.95	1	0
Melena The black, tarry, foul-smelling FECES that contain degraded blood.	0	1.95	1	0
Gastroduodenal Ulcer [description not available]	0	1.95	1	0
Hemorrhage, Peptic Ulcer [description not available]	0	1.95	1	0
Duodenal Diseases Pathological conditions in the DUODENUM region of the small intestine (INTESTINE, SMALL).	0	1.95	1	0
Dehiscence, Surgical Wound [description not available]	0	1.95	1	0
Peptic Ulcer Ulcer that occurs in the regions of the GASTROINTESTINAL TRACT which come into contact with GASTRIC JUICE containing PEPSIN and GASTRIC ACID. It occurs when there are defects in the MUCOSA barrier. The common forms of peptic ulcers are associated with HELICOBACTER PYLORI and the consumption of nonsteroidal anti-inflammatory drugs (NSAIDS).	0	1.95	1	0
Chronic Kidney Failure [description not available]	0	3.27	2	0
Nephrosclerosis Hardening of the KIDNEY due to infiltration by fibrous connective tissue (FIBROSIS), usually caused by renovascular diseases or chronic HYPERTENSION. Nephrosclerosis leads to renal ISCHEMIA.	0	2.86	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.	0	3.27	2	0
Acute Kidney Failure [description not available]	0	3.78	4	0
Acute Kidney Injury Abrupt reduction in kidney function. Acute kidney injury encompasses the entire spectrum of the syndrome including acute kidney failure; ACUTE KIDNEY TUBULAR NECROSIS; and other less severe conditions.	0	3.78	4	0
Nervous System Disorders [description not available]	0	1.95	1	0
Clostridium tetani Infection [description not available]	0	1.95	1	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.	0	1.95	1	0
Tetanus A disease caused by tetanospasmin, a powerful protein toxin produced by CLOSTRIDIUM TETANI. Tetanus usually occurs after an acute injury, such as a puncture wound or laceration. Generalized tetanus, the most common form, is characterized by tetanic muscular contractions and hyperreflexia. Localized tetanus presents itself as a mild condition with manifestations restricted to muscles near the wound. It may progress to the generalized form.	0	1.95	1	0
Bone Cancer [description not available]	0	2.35	2	0
Bone Neoplasms Tumors or cancer located in bone tissue or specific BONES.	0	2.35	2	0
Giant Cell Tumors Tumors of bone tissue or synovial or other soft tissue characterized by the presence of giant cells. The most common are giant cell tumor of tendon sheath and GIANT CELL TUMOR OF BONE.	0	1.94	1	0
Bonnevie-Ullrich Syndrome This syndrome that was originally observed by Ullrich, and designated as identical to TURNER SYNDROME, related the webbing of the neck, loose skin and other anomalies of the syndrome to accumulation of fluid in the embryo starting at the head and dispersing to the extremities (as observed by Bonnevie in mice). Commonly observed at birth in Turner Syndrome and NOONAN SYNDROME; EDEMA of the extremities usually recedes by one year and is an early sign of Turner syndrome, especially in female neonates.	0	1.94	1	0
Turner Syndrome A syndrome of defective gonadal development in phenotypic females associated with the karyotype 45,X (or 45,XO). Patients generally are of short stature with undifferentiated GONADS (streak gonads), SEXUAL INFANTILISM, HYPOGONADISM, webbing of the neck, cubitus valgus, elevated GONADOTROPINS, decreased ESTRADIOL level in blood, and CONGENITAL HEART DEFECTS. NOONAN SYNDROME (also called Pseudo-Turner Syndrome and Male Turner Syndrome) resembles this disorder; however, it occurs in males and females with a normal karyotype and is inherited as an autosomal dominant.	0	1.94	1	0
Rupture, Spontaneous Tear or break of an organ, vessel or other soft part of the body, occurring in the absence of external force.	0	2.35	2	0
Pachymeningitis [description not available]	0	1.95	1	0
Muscle Spasm [description not available]	0	1.95	1	0
Bacterial Endocarditides [description not available]	0	1.95	1	0
Endocarditis, Bacterial Inflammation of the ENDOCARDIUM caused by BACTERIA that entered the bloodstream. The strains of bacteria vary with predisposing factors, such as CONGENITAL HEART DEFECTS; HEART VALVE DISEASES; HEART VALVE PROSTHESIS IMPLANTATION; or intravenous drug use.	0	1.95	1	0
Meningitis Inflammation of the coverings of the brain and/or spinal cord, which consist of the PIA MATER; ARACHNOID; and DURA MATER. Infections (viral, bacterial, and fungal) are the most common causes of this condition, but subarachnoid hemorrhage (HEMORRHAGES, SUBARACHNOID), chemical irritation (chemical MENINGITIS), granulomatous conditions, neoplastic conditions (CARCINOMATOUS MENINGITIS), and other inflammatory conditions may produce this syndrome. (From Joynt, Clinical Neurology, 1994, Ch24, p6)	0	1.95	1	0
Spasm An involuntary contraction of a muscle or group of muscles. Spasms may involve SKELETAL MUSCLE or SMOOTH MUSCLE.	0	1.95	1	0
Anxiety Feelings or emotions of dread, apprehension, and impending disaster but not disabling as with ANXIETY DISORDERS.	0	1.95	1	0
Depression Depressive states usually of moderate intensity in contrast with MAJOR DEPRESSIVE DISORDER present in neurotic and psychotic disorders.	0	1.95	1	0
Anuria Absence of urine formation. It is usually associated with complete bilateral ureteral (URETER) obstruction, complete lower urinary tract obstruction, or unilateral ureteral obstruction when a solitary kidney is present.	0	2.35	2	0
Asthma, Bronchial [description not available]	0	1.95	1	0
Bronchospasm [description not available]	0	1.95	1	0
Breathlessness [description not available]	0	1.95	1	0
Asthma A form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL).	0	1.95	1	0
Bronchial Spasm Spasmodic contraction of the smooth muscle of the bronchi.	0	1.95	1	0
Dyspnea Difficult or labored breathing.	0	1.95	1	0
Brain Damage, Chronic A condition characterized by long-standing brain dysfunction or damage, usually of three months duration or longer. Potential etiologies include BRAIN INFARCTION; certain NEURODEGENERATIVE DISORDERS; CRANIOCEREBRAL TRAUMA; ANOXIA, BRAIN; ENCEPHALITIS; certain NEUROTOXICITY SYNDROMES; metabolic disorders (see BRAIN DISEASES, METABOLIC); and other conditions.	0	2.35	2	0
Decerebrate Posturing [description not available]	0	1.94	1	0
Air Embolism [description not available]	0	1.94	1	0
Arterial Diseases, Carotid [description not available]	0	1.94	1	0
Carotid Artery Diseases Pathological conditions involving the CAROTID ARTERIES, including the common, internal, and external carotid arteries. ATHEROSCLEROSIS and TRAUMA are relatively frequent causes of carotid artery pathology.	0	1.94	1	0
Gas Poisoning Poisoning that results from exposure to gases such as CARBON MONOXIDE; NOBLE GASES; OXYGEN; or NATURAL GAS.	0	1.94	1	0
Abnormality, Heart [description not available]	0	3.73	2	1
Heart Defects, Congenital Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.	0	3.73	2	1
Arterial Inflammation [description not available]	0	1.94	1	0
Bone Diseases Diseases of BONES.	0	2.35	2	0
Gas Gangrene A severe condition resulting from bacteria invading healthy muscle from adjacent traumatized muscle or soft tissue. The infection originates in a wound contaminated with bacteria of the genus CLOSTRIDIUM. C. perfringens accounts for the majority of cases (over eighty percent), while C. noyvi, C. septicum, and C. histolyticum cause most of the other cases.	0	1.94	1	0
Anoxia, Brain [description not available]	0	1.94	1	0
Acidosis, Respiratory Respiratory retention of carbon dioxide. It may be chronic or acute.	0	1.94	1	0
Cancer of Liver [description not available]	0	1.94	1	0
Liver Neoplasms Tumors or cancer of the LIVER.	0	1.94	1	0
Infant, Newborn, Diseases Diseases of newborn infants present at birth (congenital) or developing within the first month of birth. It does not include hereditary diseases not manifesting at birth or within the first 30 days of life nor does it include inborn errors of metabolism. Both HEREDITARY DISEASES and METABOLISM, INBORN ERRORS are available as general concepts.	0	1.94	1	0
Anti-MuSK Myasthenia Gravis [description not available]	0	1.94	1	0
Pregnancy in Diabetes [description not available]	0	1.94	1	0
Hydramnios [description not available]	0	1.94	1	0
Puerperal Disorders Disorders or diseases associated with PUERPERIUM, the six-to-eight-week period immediately after PARTURITION in humans.	0	1.94	1	0
Myasthenia Gravis A disorder of neuromuscular transmission characterized by fatigable weakness of cranial and skeletal muscles with elevated titers of ACETYLCHOLINE RECEPTORS or muscle-specific receptor tyrosine kinase (MuSK) autoantibodies. Clinical manifestations may include ocular muscle weakness (fluctuating, asymmetric, external ophthalmoplegia; diplopia; ptosis; and weakness of eye closure) and extraocular fatigable weakness of facial, bulbar, respiratory, and proximal limb muscles. The disease may remain limited to the ocular muscles (ocular myasthenia). THYMOMA is commonly associated with this condition.	0	1.94	1	0
Active Hyperemia [description not available]	0	1.94	1	0
Hyperemia The presence of an increased amount of blood in a body part or an organ leading to congestion or engorgement of blood vessels. Hyperemia can be due to increase of blood flow into the area (active or arterial), or due to obstruction of outflow of blood from the area (passive or venous).	0	1.94	1	0
Atrial Septal Defect [description not available]	0	3.33	1	1
Mitral Incompetence [description not available]	0	3.33	1	1
Fallot's Tetralogy [description not available]	0	3.33	1	1
Mitral Valve Insufficiency Backflow of blood from the LEFT VENTRICLE into the LEFT ATRIUM due to imperfect closure of the MITRAL VALVE. This can lead to mitral valve regurgitation.	0	3.33	1	1
Tetralogy of Fallot A combination of congenital heart defects consisting of four key features including VENTRICULAR SEPTAL DEFECTS; PULMONARY STENOSIS; RIGHT VENTRICULAR HYPERTROPHY; and a dextro-positioned AORTA. In this condition, blood from both ventricles (oxygen-rich and oxygen-poor) is pumped into the body often causing CYANOSIS.	0	3.33	1	1
Cancer of Mouth [description not available]	0	1.94	1	0
Cancer of Jaw [description not available]	0	1.94	1	0
Mouth Neoplasms Tumors or cancer of the MOUTH.	0	1.94	1	0
Hematoma, Subdural Accumulation of blood in the SUBDURAL SPACE between the DURA MATER and the arachnoidal layer of the MENINGES. This condition primarily occurs over the surface of a CEREBRAL HEMISPHERE, but may develop in the spinal canal (HEMATOMA, SUBDURAL, SPINAL). Subdural hematoma can be classified as the acute or the chronic form, with immediate or delayed symptom onset, respectively. Symptoms may include loss of consciousness, severe HEADACHE, and deteriorating mental status.	0	1.94	1	0
Linear Skull Fracture [description not available]	0	1.94	1	0
Brain Embolism and Thrombosis [description not available]	0	1.94	1	0
Acute Hemolytic Transfusion Reaction [description not available]	0	1.94	1	0
Transfusion Reaction Complications of BLOOD TRANSFUSION. Included adverse reactions are common allergic and febrile reactions; hemolytic (delayed and acute) reactions; and other non-hemolytic adverse reactions such as infections and adverse immune reactions related to immunocompatibility.	0	1.94	1	0
Chest Injuries [description not available]	0	1.94	1	0
Carcinoma 256, Walker A transplantable carcinoma of the rat that originally appeared spontaneously in the mammary gland of a pregnant albino rat, and which now resembles a carcinoma in young transplants and a sarcoma in older transplants. (Stedman, 25th ed)	0	1.94	1	0
Disc, Herniated [description not available]	0	1.94	1	0
Intervertebral Disc Displacement An INTERVERTEBRAL DISC in which the NUCLEUS PULPOSUS has protruded through surrounding ANNULUS FIBROSUS. This occurs most frequently in the lower lumbar region.	0	1.94	1	0
Embolism, Fat Blocking of a blood vessel by fat deposits in the circulation. It is often seen after fractures of large bones or after administration of CORTICOSTEROIDS.	0	1.94	1	0
Fibromatosis [description not available]	0	1.94	1	0
Fibroma A benign tumor of fibrous or fully developed connective tissue.	0	1.94	1	0

trimethaphan

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Research Demand Index: 45.07

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Change in Systolic Blood Pressure

Systolic Blood Pressure in Response to Systemic Nitric Oxide Inhibition

Insulin Resistance