| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
gamma-aminobutyric acid
gamma-Aminobutyric Acid: The most common inhibitory neurotransmitter in the central nervous system.. gamma-aminobutyric acid : A gamma-amino acid that is butanoic acid with the amino substituent located at C-4. | 2.69 | 3 | 0 | amino acid zwitterion;
gamma-amino acid;
monocarboxylic acid | human metabolite;
neurotransmitter;
Saccharomyces cerevisiae metabolite;
signalling molecule |
adenine
[no description available] | 1.98 | 1 | 0 | 6-aminopurines;
purine nucleobase | Daphnia magna metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
ammonium hydroxide
azane : Saturated acyclic nitrogen hydrides having the general formula NnHn+2. | 2.13 | 1 | 0 | azane;
gas molecular entity;
mononuclear parent hydride | EC 3.5.1.4 (amidase) inhibitor;
metabolite;
mouse metabolite;
neurotoxin;
NMR chemical shift reference compound;
nucleophilic reagent;
refrigerant |
choline
[no description available] | 1.98 | 1 | 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. | 3.77 | 11 | 0 | halide anion;
monoatomic chlorine | cofactor;
Escherichia coli metabolite;
human metabolite |
hydrochloric acid
Hydrochloric Acid: A strong corrosive acid that is commonly used as a laboratory reagent. It is formed by dissolving hydrogen chloride in water. GASTRIC ACID is the hydrochloric acid component of GASTRIC JUICE.. hydrogen chloride : A mononuclear parent hydride consisting of covalently bonded hydrogen and chlorine atoms. | 1.97 | 1 | 0 | chlorine molecular entity;
gas molecular entity;
hydrogen halide;
mononuclear parent hydride | mouse metabolite |
malic acid
malic acid : A 2-hydroxydicarboxylic acid that is succinic acid in which one of the hydrogens attached to a carbon is replaced by a hydroxy group.. 2-hydroxydicarboxylic acid : Any dicarboxylic acid carrying a hydroxy group on the carbon atom at position alpha to the carboxy group. | 2.02 | 1 | 0 | 2-hydroxydicarboxylic acid;
C4-dicarboxylic acid | food acidity regulator;
fundamental metabolite |
dimethyl sulfoxide
Dimethyl Sulfoxide: A highly polar organic liquid, that is used widely as a chemical solvent. Because of its ability to penetrate biological membranes, it is used as a vehicle for topical application of pharmaceuticals. It is also used to protect tissue during CRYOPRESERVATION. Dimethyl sulfoxide shows a range of pharmacological activity including analgesia and anti-inflammation.. dimethyl sulfoxide : A 2-carbon sulfoxide in which the sulfur atom has two methyl substituents. | 1.96 | 1 | 0 | sulfoxide;
volatile organic compound | alkylating agent;
antidote;
Escherichia coli metabolite;
geroprotector;
MRI contrast agent;
non-narcotic analgesic;
polar aprotic solvent;
radical scavenger |
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. | 2.37 | 2 | 0 | carbon oxoanion | cofactor;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
histamine
[no description available] | 9.29 | 249 | 1 | aralkylamino compound;
imidazoles | human metabolite;
mouse metabolite;
neurotransmitter |
n-methylhistamine
[no description available] | 4.2 | 5 | 0 | aralkylamine | |
niacinamide
nicotinamide : A pyridinecarboxamide that is pyridine in which the hydrogen at position 3 is replaced by a carboxamide group. | 2.37 | 2 | 0 | pyridine alkaloid;
pyridinecarboxamide;
vitamin B3 | anti-inflammatory agent;
antioxidant;
cofactor;
EC 2.4.2.30 (NAD(+) ADP-ribosyltransferase) inhibitor;
EC 3.5.1.98 (histone deacetylase) inhibitor;
Escherichia coli metabolite;
geroprotector;
human urinary metabolite;
metabolite;
mouse metabolite;
neuroprotective agent;
Saccharomyces cerevisiae metabolite;
Sir2 inhibitor |
nitrates
Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical. | 2.01 | 1 | 0 | monovalent inorganic anion;
nitrogen oxoanion;
reactive nitrogen species | |
phenethylamine
phenethylamine: RN given refers to parent cpd; structure in Merck Index, 9th ed, #7016. 2-phenylethylamine : A phenylethylamine having the phenyl substituent at the 2-position. | 2.37 | 2 | 0 | alkaloid;
aralkylamine;
phenylethylamine | Escherichia coli metabolite;
human metabolite;
mouse metabolite |
selenious acid
Selenious Acid: A selenium compound with the molecular formula H2SO3. It used as a source of SELENIUM, especially for patients that develop selenium deficiency following prolonged PARENTERAL NUTRITION. | 1.97 | 1 | 0 | selenium oxoacid | |
urea
pseudourea: clinical use; structure. isourea : A carboximidic acid that is the imidic acid tautomer of urea, H2NC(=NH)OH, and its hydrocarbyl derivatives. | 1.96 | 1 | 0 | isourea;
monocarboxylic acid amide;
one-carbon compound | Daphnia magna metabolite;
Escherichia coli metabolite;
fertilizer;
flour treatment agent;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
octoclothepine
octoclothepine: major tranquilizer with action similar to those of the phenothiazines; used in schizophrenic & manic psychoses; minor decriptor (77-86); on-line & INDEX MEDICUS search DIBENZOTHIEPINS (77-86); RN given refers to parent cpd without isomeric designation | 2.02 | 1 | 0 | dibenzothiepine | |
sk&f-38393
2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine: A selective D1 dopamine receptor agonist used primarily as a research tool.. 1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine-7,8-diol : A benzazepine that is 2,3,4,5-tetrahydro-3-benzazepine bearing a phenyl substituent at position 1 and two hydroxy substituents at positions 7 and 8.. SKF 38393 : A racemate comprising equimolar amounts of (R)- and (S)-SKF 38393 | 2 | 1 | 0 | benzazepine;
catechols;
secondary amino compound | |
1h-3-benzazepin-7-ol, 8-bromo-2,3,4,5-tetrahydro-3-methyl-5-phenyl-
1H-3-benzazepin-7-ol, 8-bromo-2,3,4,5-tetrahydro-3-methyl-5-phenyl-: stereoselective antagonist of dopamine receptor | 2 | 1 | 0 | benzazepine | |
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 |
5,8,11,14-eicosatetraynoic acid
5,8,11,14-Eicosatetraynoic Acid: A 20-carbon unsaturated fatty acid containing 4 alkyne bonds. It inhibits the enzymatic conversion of arachidonic acid to prostaglandins E(2) and F(2a). | 1.97 | 1 | 0 | long-chain fatty acid | |
5,8,11-eicosatriynoic acid
5,8,11-eicosatriynoic acid: a lipoxygenase inhibitor. 5,8,11-icosatriynoic acid : A C20 polyunsaturated fatty acid having three triple bonds in the 5-, 8- and 11-positions. | 1.97 | 1 | 0 | acetylenic fatty acid;
icosanoid;
long-chain fatty acid;
polyunsaturated fatty acid | EC 1.13.11.31 (arachidonate 12-lipoxygenase) inhibitor |
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 |
8-cyclopentyl-1,3-dimethylxanthine
8-cyclopentyl-1,3-dimethylxanthine: prolongs epileptic seizures in rats | 2.05 | 1 | 0 | oxopurine | |
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) | 1.95 | 1 | 0 | monocarboxylic acid amide;
sulfonamide;
thiadiazoles | anticonvulsant;
diuretic;
EC 4.2.1.1 (carbonic anhydrase) inhibitor |
beta-aminoethyl isothiourea
beta-Aminoethyl Isothiourea: A radiation-protective agent that can inhibit DNA damage by binding to the DNA. It also increases the susceptibility of blood cells to complement-mediated lysis. | 3.73 | 3 | 0 | | |
albuterol
Albuterol: A short-acting beta-2 adrenergic agonist that is primarily used as a bronchodilator agent to treat ASTHMA. Albuterol is prepared as a racemic mixture of R(-) and S(+) stereoisomers. The stereospecific preparation of R(-) isomer of albuterol is referred to as levalbuterol.. albuterol : A member of the class of phenylethanolamines that is 4-(2-amino-1-hydroxyethyl)-2-(hydroxymethyl)phenol having a tert-butyl group attached to the nirogen atom. It acts as a beta-adrenergic agonist used in the treatment of asthma and chronic obstructive pulmonary disease (COPD). | 1.96 | 1 | 0 | phenols;
phenylethanolamines;
secondary amino compound | beta-adrenergic agonist;
bronchodilator agent;
environmental contaminant;
xenobiotic |
pimagedine
pimagedine: diamine oxidase & nitric oxide synthase inhibitor; an advanced glycosylation end product inhibitor; used in the treatment of diabetic complications; structure. aminoguanidine : A one-carbon compound whose unique structure renders it capable of acting as a derivative of hydrazine, guanidine or formamide. | 3.48 | 8 | 0 | guanidines;
one-carbon compound | EC 1.14.13.39 (nitric oxide synthase) inhibitor;
EC 1.4.3.4 (monoamine oxidase) inhibitor |
theophylline
[no description available] | 3.36 | 7 | 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 |
amitriptyline
Amitriptyline: Tricyclic antidepressant with anticholinergic and sedative properties. It appears to prevent the re-uptake of norepinephrine and serotonin at nerve terminals, thus potentiating the action of these neurotransmitters. Amitriptyline also appears to antagonize cholinergic and alpha-1 adrenergic responses to bioactive amines.. amitriptyline : An organic tricyclic compound that is 10,11-dihydro-5H-dibenzo[a,d][7]annulene substituted by a 3-(dimethylamino)propylidene group at position 5. | 1.96 | 1 | 0 | carbotricyclic compound;
tertiary amine | adrenergic uptake inhibitor;
antidepressant;
environmental contaminant;
tropomyosin-related kinase B receptor agonist;
xenobiotic |
amodiaquine
Amodiaquine: A 4-aminoquinoline compound with anti-inflammatory properties.. amodiaquine : A quinoline having a chloro group at the 7-position and an aryl amino group at the 4-position. | 1.96 | 1 | 0 | aminoquinoline;
organochlorine compound;
phenols;
secondary amino compound;
tertiary amino compound | anticoronaviral agent;
antimalarial;
drug allergen;
EC 2.1.1.8 (histamine N-methyltransferase) inhibitor;
non-steroidal anti-inflammatory drug;
prodrug |
amoxapine
Amoxapine: The N-demethylated derivative of the antipsychotic agent LOXAPINE that works by blocking the reuptake of norepinephrine, serotonin, or both; it also blocks dopamine receptors. Amoxapine is used for the treatment of depression.. amoxapine : A dibenzooxazepine compound having a chloro substituent at the 2-position and a piperazin-1-yl group at the 11-position. | 2.02 | 1 | 0 | dibenzooxazepine | adrenergic uptake inhibitor;
antidepressant;
dopaminergic antagonist;
geroprotector;
serotonin uptake inhibitor |
antazoline
Antazoline: An antagonist of histamine H1 receptors.. antazoline : A member of the class of imidazolines that is 2-aminomethyl-2-imidazoline in which the exocyclic amino hydrogens are replaced by benzyl and phenyl groups. Antazoline is only found in individuals that have taken the drug. | 1.96 | 1 | 0 | aromatic amine;
imidazolines;
tertiary amino compound | cholinergic antagonist;
H1-receptor antagonist;
xenobiotic |
aspirin
Aspirin: The prototypical analgesic used in the treatment of mild to moderate pain. It has anti-inflammatory and antipyretic properties and acts as an inhibitor of cyclooxygenase which results in the inhibition of the biosynthesis of prostaglandins. Aspirin also inhibits platelet aggregation and is used in the prevention of arterial and venous thrombosis. (From Martindale, The Extra Pharmacopoeia, 30th ed, p5). acetylsalicylate : A benzoate that is the conjugate base of acetylsalicylic acid, arising from deprotonation of the carboxy group.. acetylsalicylic acid : A member of the class of benzoic acids that is salicylic acid in which the hydrogen that is attached to the phenolic hydroxy group has been replaced by an acetoxy group. A non-steroidal anti-inflammatory drug with cyclooxygenase inhibitor activity. | 2.9 | 4 | 0 | benzoic acids;
phenyl acetates;
salicylates | anticoagulant;
antipyretic;
cyclooxygenase 1 inhibitor;
cyclooxygenase 2 inhibitor;
drug allergen;
EC 1.1.1.188 (prostaglandin-F synthase) inhibitor;
geroprotector;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
plant activator;
platelet aggregation inhibitor;
prostaglandin antagonist;
teratogenic agent |
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. | 2.4 | 2 | 0 | ethanolamines;
monocarboxylic acid amide;
propanolamine | anti-arrhythmia drug;
antihypertensive agent;
beta-adrenergic antagonist;
environmental contaminant;
sympatholytic agent;
xenobiotic |
bay-k-8644
3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl ester: A dihydropyridine derivative, which, in contrast to NIFEDIPINE, functions as a calcium channel agonist. The compound facilitates Ca2+ influx through partially activated voltage-dependent Ca2+ channels, thereby causing vasoconstrictor and positive inotropic effects. It is used primarily as a research tool.. Bay-K-8644 : A racemate comprising equimolar amounts of (R)- and (S)-Bay-K-8644. methyl 2,6-dimethyl-5-nitro-4-[2-(trifluoromethyl)phenyl]-1,4-dihydropyridine-3-carboxylate : A pentasubstituted dihydropyridine carrying methoxycarbonyl, 2-(trifluoromethyl)phenyl and nitro substituents at positions 3, 4 and 5 respectively as well as two methyl substituents at positions 2 and 6. | 1.97 | 1 | 0 | (trifluoromethyl)benzenes;
C-nitro compound;
dihydropyridine;
methyl ester | |
betahistine
Betahistine: A histamine analog and H1 receptor agonist that serves as a vasodilator. It is used in MENIERE DISEASE and in vascular headaches but may exacerbate bronchial asthma and peptic ulcers.. betahistine : An aminoalkylpyridine that is pyridine substituted by a 2-(methylamino)ethyl group at position 2. It acts as a histamine agonist and a vasodilator, and is thought to improve the microcirculation of the labyrinth, resulting in reduced endolymphatic pressure. It is used (generally as the hydrochloride or mesylate salt) to reduce the symptoms of vertigo, tinnitus, and hearing loss associated with Meniere's disease. | 2.39 | 2 | 0 | aminoalkylpyridine;
secondary amino compound | H1-receptor agonist;
vasodilator agent |
bethanechol
Bethanechol: A slowly hydrolyzing muscarinic agonist with no nicotinic effects. Bethanechol is generally used to increase smooth muscle tone, as in the GI tract following abdominal surgery or in urinary retention in the absence of obstruction. It may cause hypotension, HEART RATE changes, and BRONCHIAL SPASM.. bethanechol : The carbamic acid ester of 2-methylcholine. A slowly hydrolysed muscarinic agonist with no nicotinic effects, it is used as its chloride salt to increase smooth muscle tone, as in the gastrointestinal tract following abdominal surgery, treatment of gastro-oesophageal reflux disease, and as an alternative to catheterisation in the treatment of non-obstructive urinary retention. | 1.96 | 1 | 0 | carbamate ester;
quaternary ammonium ion | muscarinic agonist |
bumetanide
[no description available] | 1.97 | 1 | 0 | amino acid;
benzoic acids;
sulfonamide | diuretic;
EC 3.6.3.49 (channel-conductance-controlling ATPase) inhibitor |
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. | 1.97 | 1 | 0 | aromatic ether;
nitrile;
polyether;
tertiary amino compound | |
cetirizine
Cetirizine: A potent second-generation histamine H1 antagonist that is effective in the treatment of allergic rhinitis, chronic urticaria, and pollen-induced asthma. Unlike many traditional antihistamines, it does not cause drowsiness or anticholinergic side effects.. cetirizine : A member of the class of piperazines that is piperazine in which the hydrogens attached to nitrogen are replaced by a (4-chlorophenyl)(phenyl)methyl and a 2-(carboxymethoxy)ethyl group respectively. | 2.4 | 2 | 0 | ether;
monocarboxylic acid;
monochlorobenzenes;
piperazines | anti-allergic agent;
environmental contaminant;
H1-receptor antagonist;
xenobiotic |
chloral hydrate
[no description available] | 1.96 | 1 | 0 | aldehyde hydrate;
ethanediol;
organochlorine compound | general anaesthetic;
mouse metabolite;
sedative;
xenobiotic |
chloroquine
Chloroquine: The prototypical antimalarial agent with a mechanism that is not well understood. It has also been used to treat rheumatoid arthritis, systemic lupus erythematosus, and in the systemic therapy of amebic liver abscesses.. chloroquine : An aminoquinoline that is quinoline which is substituted at position 4 by a [5-(diethylamino)pentan-2-yl]amino group at at position 7 by chlorine. It is used for the treatment of malaria, hepatic amoebiasis, lupus erythematosus, light-sensitive skin eruptions, and rheumatoid arthritis. | 6.96 | 1 | 0 | aminoquinoline;
organochlorine compound;
secondary amino compound;
tertiary amino compound | anticoronaviral agent;
antimalarial;
antirheumatic drug;
autophagy inhibitor;
dermatologic drug |
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. | 5.76 | 21 | 1 | monochlorobenzenes;
pyridines;
tertiary amino compound | anti-allergic agent;
antidepressant;
antipruritic drug;
H1-receptor antagonist;
histamine antagonist;
serotonin uptake inhibitor |
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. | 7.22 | 126 | 0 | aliphatic sulfide;
guanidines;
imidazoles;
nitrile | adjuvant;
analgesic;
anti-ulcer drug;
H2-receptor antagonist;
P450 inhibitor |
clobenpropit
clobenpropit: histamine H3 receptor antagonist. clobenpropit : An imidothiocarbamic ester that consists of isothiourea bearing S-3-(imidazol-4-yl)propyl and N-4-chlorobenzyl substituents. An extremely potent histamine H3 antagonist/inverse agonist (pA2 = 9.93). Also displays partial agonist activity at H4 receptors; induces eosinophil shape change with an EC50 of 3 nM. | 3.27 | 6 | 0 | imidazoles;
imidothiocarbamic ester;
organochlorine compound | H3-receptor antagonist;
H4-receptor agonist |
clonidine
Clonidine: An imidazoline sympatholytic agent that stimulates ALPHA-2 ADRENERGIC RECEPTORS and central IMIDAZOLINE RECEPTORS. It is commonly used in the management of HYPERTENSION.. clonidine (amino form) : A clonidine that is 4,5-dihydro-1H-imidazol-2-amine in which one of the amino hydrogens is replaced by a 2,6-dichlorophenyl group. | 7.89 | 4 | 0 | clonidine;
imidazoline | |
diphenhydramine
Diphenhydramine: A histamine H1 antagonist used as an antiemetic, antitussive, for dermatoses and pruritus, for hypersensitivity reactions, as a hypnotic, an antiparkinson, and as an ingredient in common cold preparations. It has some undesired antimuscarinic and sedative effects.. diphenhydramine : An ether that is the benzhydryl ether of 2-(dimethylamino)ethanol. It is a H1-receptor antagonist used as a antipruritic and antitussive drug.. antitussive : An agent that suppresses cough. Antitussives have a central or a peripheral action on the cough reflex, or a combination of both. Compare with expectorants, which are considered to increase the volume of secretions in the respiratory tract, so facilitating their removal by ciliary action and coughing, and mucolytics, which decrease the viscosity of mucus, facilitating its removal by ciliary action and expectoration. | 4.28 | 19 | 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 |
doxepin
Doxepin: A dibenzoxepin tricyclic compound. It displays a range of pharmacological actions including maintaining adrenergic innervation. Its mechanism of action is not fully understood, but it appears to block reuptake of monoaminergic neurotransmitters into presynaptic terminals. It also possesses anticholinergic activity and modulates antagonism of histamine H(1)- and H(2)-receptors.. doxepin : A dibenzooxepine that is 6,11-dihydrodibenzo[b,e]oxepine substituted by a 3-(dimethylamino)propylidene group at position 11. It is used as an antidepressant drug. | 1.97 | 1 | 0 | dibenzooxepine;
tertiary amino compound | antidepressant |
ebastine
[no description available] | 2.02 | 1 | 0 | organic molecular entity | |
famotidine
Famotidine: A competitive histamine H2-receptor antagonist. Its main pharmacodynamic effect is the inhibition of gastric secretion. | 4.06 | 15 | 0 | 1,3-thiazoles;
guanidines;
sulfonamide | anti-ulcer drug;
H2-receptor antagonist;
P450 inhibitor |
berotek
Fenoterol: A synthetic adrenergic beta-2 agonist that is used as a bronchodilator and tocolytic.. fenoterol : A member of the class resorcinols that is 5-(1-hydroxyethyl)benzene-1,3-diol in which one of the methyl hydrogens is replaced by a 1-(4-hydroxyphenyl)propan-2-amino group. A beta2-adrenergic agonist, it is used (as the hydrobromide salt) as a bronchodilator in the management of reversible airway obstruction. | 1.96 | 1 | 0 | resorcinols;
secondary alcohol;
secondary amino compound | beta-adrenergic agonist;
bronchodilator agent;
sympathomimetic agent;
tocolytic agent |
fexofenadine
fexofenadine: a second generation antihistamine; metabolite of the antihistaminic drug terfenadine; structure in first source; RN refers to HCl. fexofenadine : A piperidine-based anti-histamine compound. | 2.44 | 2 | 0 | piperidines;
tertiary amine | anti-allergic agent;
H1-receptor antagonist |
guaifenesin
Guaifenesin: An expectorant that also has some muscle relaxing action. It is used in many cough preparations. | 1.99 | 1 | 0 | methoxybenzenes | |
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. | 1.97 | 1 | 0 | quaternary ammonium salt | |
tele-methylhistamine
tele-methylhistamine: histamine methyltransferase antagonist. N(tele)-methylhistamine : A primary amino compound that is the N(tele)-methyl derivative of histamine. | 4.01 | 4 | 0 | imidazoles;
primary amino compound | human metabolite;
mouse metabolite |
alpha-methylhistamine
alpha-methylhistamine: a histamine H3 receptor agonist; RN given refers to parent cpd without isomeric designation. alpha-methylhistamine : An aralkylamino compound that is histamine bearing a methyl substituent at the alpha-position. | 4.25 | 18 | 0 | aralkylamino compound;
imidazoles | animal metabolite;
H3-receptor agonist |
hydroxyzine
Hydroxyzine: A histamine H1 receptor antagonist that is effective in the treatment of chronic urticaria, dermatitis, and histamine-mediated pruritus. Unlike its major metabolite CETIRIZINE, it does cause drowsiness. It is also effective as an antiemetic, for relief of anxiety and tension, and as a sedative.. hydroxyzine : A N-alkylpiperazine that is piperzine in which the nitrogens atoms are substituted by 2-(2-hydroxyethoxy)ethyl and (4-chlorophenyl)(phenyl)methyl groups respectively. | 3.07 | 5 | 0 | hydroxyether;
monochlorobenzenes;
N-alkylpiperazine | anticoronaviral agent;
antipruritic drug;
anxiolytic drug;
dermatologic drug;
H1-receptor antagonist |
imetit
imetit: structure given in first source. imetit : An imidothiocarbamic ester that consists of isothiourea in which the thiol hydrogen is substituted by a 2-(imidazol-4-yl)ethyl group. An extremely potent, high affinity agonist at H3 and H4 receptors (Ki values are 0.3 and 2.7 nM respectively). Induces shape change in eosinophils with an EC50 of 25 nM. Centrally active following systemic administration. | 3.72 | 10 | 0 | imidazoles;
imidothiocarbamic ester | H3-receptor agonist;
H4-receptor agonist |
imipramine
Imipramine: The prototypical tricyclic antidepressant. It has been used in major depression, dysthymia, bipolar depression, attention-deficit disorders, agoraphobia, and panic disorders. It has less sedative effect than some other members of this therapeutic group.. imipramine : A dibenzoazepine that is 5H-dibenzo[b,f]azepine substituted by a 3-(dimethylamino)propyl group at the nitrogen atom. | 1.98 | 1 | 0 | dibenzoazepine | adrenergic uptake inhibitor;
antidepressant;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor |
indomethacin
Indomethacin: A non-steroidal anti-inflammatory agent (NSAID) that inhibits CYCLOOXYGENASE, which is necessary for the formation of PROSTAGLANDINS and other AUTACOIDS. It also inhibits the motility of POLYMORPHONUCLEAR LEUKOCYTES.. indometacin : A member of the class of indole-3-acetic acids that is indole-3-acetic acid in which the indole ring is substituted at positions 1, 2 and 5 by p-chlorobenzoyl, methyl, and methoxy groups, respectively. A non-steroidal anti-inflammatory drug, it is used in the treatment of musculoskeletal and joint disorders including osteoarthritis, rheumatoid arthritis, gout, bursitis and tendinitis. | 3.85 | 12 | 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 |
1-methyl-3-isobutylxanthine
1-Methyl-3-isobutylxanthine: A potent cyclic nucleotide phosphodiesterase inhibitor; due to this action, the compound increases cyclic AMP and cyclic GMP in tissue and thereby activates CYCLIC NUCLEOTIDE-REGULATED PROTEIN KINASES. 3-isobutyl-1-methylxanthine : An oxopurine that is xanthine which is substituted at positions 1 and 3 by methyl and isobutyl groups, respectively. | 3.67 | 10 | 0 | 3-isobutyl-1-methylxanthine | |
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. | 3.76 | 11 | 0 | catechols;
secondary alcohol;
secondary amino compound | beta-adrenergic agonist;
bronchodilator agent;
cardiotonic drug;
sympathomimetic agent |
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. | 1.97 | 1 | 0 | aromatic ketone;
organofluorine compound;
piperidines;
quinazolines | alpha-adrenergic antagonist;
antihypertensive agent;
cardiovascular drug;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
serotonergic antagonist |
loratadine
Loratadine: A second-generation histamine H1 receptor antagonist used in the treatment of allergic rhinitis and urticaria. Unlike most classical antihistamines (HISTAMINE H1 ANTAGONISTS) it lacks central nervous system depressing effects such as drowsiness.. loratadine : A benzocycloheptapyridine that is 6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine substituted by a chloro group at position 8 and a 1-(ethoxycarbonyl)piperidin-4-ylidene group at position 11. It is a H1-receptor antagonist commonly employed in the treatment of allergic disorders. | 2.02 | 1 | 0 | benzocycloheptapyridine;
ethyl ester;
N-acylpiperidine;
organochlorine compound;
tertiary carboxamide | anti-allergic agent;
cholinergic antagonist;
geroprotector;
H1-receptor antagonist |
loxapine
Loxapine: An antipsychotic agent used in SCHIZOPHRENIA. | 2.02 | 1 | 0 | dibenzooxazepine | antipsychotic agent;
dopaminergic antagonist |
6-anilino-5,8-quinolinedione
6-anilino-5,8-quinolinedione: structure given in first source; SRS-A & guanylate cyclase antagonist. 6-anilino-5,8-quinolinedione : A quinolone that is quinoline-5,8-dione in which the hydrogen at position 6 is replaced by an anilino group. | 1.98 | 1 | 0 | aminoquinoline;
aromatic amine;
p-quinones;
quinolone | antineoplastic agent;
EC 4.6.1.2 (guanylate cyclase) inhibitor |
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. | 2.05 | 1 | 0 | primary aliphatic amine | |
mequitazine
mequitazine: RN given refers to parent cpd without isomeric designation; structure | 1.99 | 1 | 0 | phenothiazines | |
mesalamine
Mesalamine: An anti-inflammatory agent, structurally related to the SALICYLATES, which is active in INFLAMMATORY BOWEL DISEASE. It is considered to be the active moiety of SULPHASALAZINE. (From Martindale, The Extra Pharmacopoeia, 30th ed). mesalamine : A monohydroxybenzoic acid that is salicylic acid substituted by an amino group at the 5-position. | 1.96 | 1 | 0 | amino acid;
aromatic amine;
monocarboxylic acid;
monohydroxybenzoic acid;
phenols | non-steroidal anti-inflammatory drug |
metaproterenol
Metaproterenol: A beta-2 adrenergic agonist used in the treatment of ASTHMA and BRONCHIAL SPASM.. orciprenaline : A racemate composed of equimolar amounts of (R)- and (S)-orciprenaline. Used (as its sulfate salt) to relax the airway muscles and improve breathing for patients suffering from asthma or bronchitis.. 5-[1-hydroxy-2-(isopropanylamino)ethyl]benzene-1,3-diol : A member of the class of resorcinols bearing an additional 1-hydroxy-2-(isopropanylamino)ethyl substituent at position 5 of resorcinol itself. | 1.97 | 1 | 0 | aralkylamino compound;
phenylethanolamines;
resorcinols;
secondary alcohol;
secondary amino compound | |
metoprolol
Metoprolol: A selective adrenergic beta-1 blocking agent that is commonly used to treat ANGINA PECTORIS; HYPERTENSION; and CARDIAC ARRHYTHMIAS.. metoprolol : A propanolamine that is 1-(propan-2-ylamino)propan-2-ol substituted by a 4-(2-methoxyethyl)phenoxy group at position 1. | 2.36 | 2 | 0 | aromatic ether;
propanolamine;
secondary alcohol;
secondary amino compound | antihypertensive agent;
beta-adrenergic antagonist;
environmental contaminant;
geroprotector;
xenobiotic |
metronidazole
Metronidazole: A nitroimidazole used to treat AMEBIASIS; VAGINITIS; TRICHOMONAS INFECTIONS; GIARDIASIS; ANAEROBIC BACTERIA; and TREPONEMAL INFECTIONS.. metronidazole : A member of the class of imidazoles substituted at C-1, -2 and -5 with 2-hydroxyethyl, nitro and methyl groups respectively. It has activity against anaerobic bacteria and protozoa, and has a radiosensitising effect on hypoxic tumour cells. It may be given by mouth in tablets, or as the benzoate in an oral suspension. The hydrochloride salt can be used in intravenous infusions. Metronidazole is a prodrug and is selective for anaerobic bacteria due to their ability to intracellularly reduce the nitro group of metronidazole to give nitroso-containing intermediates. These can covalently bind to DNA, disrupting its helical structure, inducing DNA strand breaks and inhibiting bacterial nucleic acid synthesis, ultimately resulting in bacterial cell death. | 1.96 | 1 | 0 | C-nitro compound;
imidazoles;
primary alcohol | antiamoebic agent;
antibacterial drug;
antimicrobial agent;
antiparasitic agent;
antitrichomonal drug;
environmental contaminant;
prodrug;
radiosensitizing agent;
xenobiotic |
fenamic acid
fenamic acid: has chloride and potassium channel-blocking activity; RN given refers to parent cpd. fenamic acid : An aminobenzoic acid that is the N-phenyl derivative of anthranilic acid. It acts as a parent skeleton for the synthesis of several non-steroidal anti-inflammatory drugs. | 2.39 | 2 | 0 | aminobenzoic acid;
secondary amino compound | membrane transport modulator |
naphazoline
Naphazoline: An adrenergic vasoconstrictor agent used as a decongestant. | 1.97 | 1 | 0 | naphthalenes | |
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. | 1.99 | 1 | 0 | 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. | 1.99 | 1 | 0 | C-nitro compound;
dihydropyridine;
methyl ester | calcium channel blocker;
human metabolite;
tocolytic agent;
vasodilator agent |
nitrendipine
Nitrendipine: A calcium channel blocker with marked vasodilator action. It is an effective antihypertensive agent and differs from other calcium channel blockers in that it does not reduce glomerular filtration rate and is mildly natriuretic, rather than sodium retentive.. nitrendipine : A dihydropyridine that is 1,4-dihydropyridine substituted by methyl groups at positions 2 and 6, a 3-nitrophenyl group at position 4, a ethoxycarbonyl group at position 3 and a methoxycarbonyl group at position 5. It is a calcium-channel blocker used in the treatment of hypertension. | 1.98 | 1 | 0 | C-nitro compound;
dicarboxylic acids and O-substituted derivatives;
diester;
dihydropyridine;
ethyl ester;
methyl ester | antihypertensive agent;
calcium channel blocker;
geroprotector;
vasodilator agent |
omeprazole
Omeprazole: A 4-methoxy-3,5-dimethylpyridyl, 5-methoxybenzimidazole derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits an H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS.. omeprazole : A racemate comprising equimolar amounts of (R)- and (S)-omeprazole.. 5-methoxy-2-{[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl}-1H-benzimidazole : A member of the class of benzimidazoles that is 1H-benzimidazole which is substituted by a [4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl group at position 2 and a methoxy group at position 5. | 2.73 | 3 | 0 | aromatic ether;
benzimidazoles;
pyridines;
sulfoxide | |
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. | 2.38 | 2 | 0 | benzylisoquinoline alkaloid;
dimethoxybenzene;
isoquinolines | antispasmodic drug;
vasodilator agent |
phenoxybenzamine
Phenoxybenzamine: An alpha-adrenergic antagonist with long duration of action. It has been used to treat hypertension and as a peripheral vasodilator. | 1.97 | 1 | 0 | aromatic amine | |
pinacidil
Pinacidil: A guanidine that opens POTASSIUM CHANNELS producing direct peripheral vasodilatation of the ARTERIOLES. It reduces BLOOD PRESSURE and peripheral resistance and produces fluid retention. (Martindale The Extra Pharmacopoeia, 31st ed) | 1.97 | 1 | 0 | pyridines | |
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. | 1.98 | 1 | 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. | 1.96 | 1 | 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. | 1.99 | 1 | 0 | aromatic ether;
furans;
monocarboxylic acid amide;
piperazines;
quinazolines | alpha-adrenergic antagonist;
antihypertensive agent;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor |
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. | 1.96 | 1 | 0 | phenothiazines;
tertiary amine | anti-allergic agent;
anticoronaviral agent;
antiemetic;
antipruritic drug;
H1-receptor antagonist;
local anaesthetic;
sedative |
proxymetacaine
proxymetacaine: RN given refers to parent cpd; structure | 1.96 | 1 | 0 | benzoate ester | |
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. | 3.35 | 7 | 0 | naphthalenes;
propanolamine;
secondary amine | anti-arrhythmia drug;
antihypertensive agent;
anxiolytic drug;
beta-adrenergic antagonist;
environmental contaminant;
human blood serum metabolite;
vasodilator agent;
xenobiotic |
pyrilamine
Pyrilamine: A histamine H1 antagonist. It has mild hypnotic properties and some local anesthetic action and is used for allergies (including skin eruptions) both parenterally and locally. It is a common ingredient of cold remedies.. mepyramine : An ethylenediamine derivative that is ethylenediamine in which one of the amino nitrogens is substituted by two methyl groups and the remaining amino nitrogen is substituted by a 4-methoxybenzyl and a pyridin-2-yl group. | 6.4 | 55 | 0 | aromatic ether;
ethylenediamine derivative | H1-receptor antagonist |
ranitidine
[no description available] | 3.07 | 1 | 0 | aralkylamine | |
sk&f 91488
SK&F 91488: RN given refers to parent cpd; structure given in first source; PI: APT (80-92) (not an active MH record; now NM) | 4.7 | 29 | 0 | | |
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. | 1.95 | 1 | 0 | phenylethanolamines;
resorcinols | anti-asthmatic drug;
beta-adrenergic agonist;
bronchodilator agent;
EC 3.1.1.7 (acetylcholinesterase) inhibitor;
hypoglycemic agent;
sympathomimetic agent;
tocolytic agent |
terfenadine
Terfenadine: A selective histamine H1-receptor antagonist devoid of central nervous system depressant activity. The drug was used for ALLERGY but withdrawn due to causing LONG QT SYNDROME. | 2.06 | 1 | 0 | diarylmethane | |
tetraethylammonium
Tetraethylammonium: A potassium-selective ion channel blocker. (From J Gen Phys 1994;104(1):173-90) | 2.39 | 2 | 0 | quaternary ammonium ion | |
tripelennamine
Tripelennamine: A histamine H1 antagonist with low sedative action but frequent gastrointestinal irritation. It is used to treat ASTHMA; HAY FEVER; URTICARIA; and RHINITIS; and also in veterinary applications. Tripelennamine is administered by various routes, including topically. | 2.88 | 4 | 0 | aromatic amine | |
tyramine
[no description available] | 1.96 | 1 | 0 | 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] | 6.96 | 1 | 0 | carbamate ester | fungal metabolite;
mutagen |
corticosterone
[no description available] | 8.47 | 8 | 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. | 2.66 | 3 | 0 | alkaloid ester;
methyl ester;
yohimban alkaloid | adrenergic uptake inhibitor;
antihypertensive agent;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
environmental contaminant;
first generation antipsychotic;
plant metabolite;
xenobiotic |
phentolamine
Phentolamine: A nonselective alpha-adrenergic antagonist. It is used in the treatment of hypertension and hypertensive emergencies, pheochromocytoma, vasospasm of RAYNAUD DISEASE and frostbite, clonidine withdrawal syndrome, impotence, and peripheral vascular disease.. phentolamine : A substituted aniline that is 3-aminophenol in which the hydrogens of the amino group are replaced by 4-methylphenyl and 4,5-dihydro-1H-imidazol-2-ylmethyl groups respectively. An alpha-adrenergic antagonist, it is used for the treatment of hypertension. | 2.38 | 2 | 0 | imidazoles;
phenols;
substituted aniline;
tertiary amino compound | alpha-adrenergic antagonist;
vasodilator agent |
thymidine
[no description available] | 2.37 | 2 | 0 | pyrimidine 2'-deoxyribonucleoside | Escherichia coli metabolite;
human metabolite;
metabolite;
mouse metabolite |
dibenzylchlorethamine
Dibenzylchlorethamine: An alpha adrenergic antagonist. | 2.65 | 3 | 0 | | |
carbachol
Carbachol: A slowly hydrolyzed CHOLINERGIC AGONIST that acts at both MUSCARINIC RECEPTORS and NICOTINIC RECEPTORS. | 3.06 | 5 | 0 | ammonium salt;
carbamate ester | cardiotonic drug;
miotic;
muscarinic agonist;
nicotinic acetylcholine receptor agonist;
non-narcotic analgesic |
pentylenetetrazole
Pentylenetetrazole: A pharmaceutical agent that displays activity as a central nervous system and respiratory stimulant. It is considered a non-competitive GAMMA-AMINOBUTYRIC ACID antagonist. Pentylenetetrazole has been used experimentally to study seizure phenomenon and to identify pharmaceuticals that may control seizure susceptibility.. pentetrazol : An organic heterobicyclic compound that is 1H-tetrazole in which the hydrogens at positions 1 and 5 are replaced by a pentane-1,5-diyl group. A central and respiratory stimulant, it was formerly used for the treatment of cough and other respiratory tract disorders, cardiovascular disorders including hypotension, and pruritis. | 2.39 | 2 | 0 | organic heterobicyclic compound;
organonitrogen heterocyclic compound | |
n-methyl-4-aminophenol
4-methylaminophenol : The phenol that is the N-methyl derivative of 4-aminophenol. | 1.96 | 1 | 0 | phenols | allergen |
lysine
Lysine: An essential amino acid. It is often added to animal feed.. lysine : A diamino acid that is caproic (hexanoic) acid bearing two amino substituents at positions 2 and 6.. L-lysine : An L-alpha-amino acid; the L-isomer of lysine. | 2.17 | 1 | 0 | aspartate family amino acid;
L-alpha-amino acid zwitterion;
L-alpha-amino acid;
lysine;
organic molecular entity;
proteinogenic amino acid | algal metabolite;
anticonvulsant;
Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
plant metabolite;
Saccharomyces cerevisiae metabolite |
cyanides
Cyanides: Inorganic salts of HYDROGEN CYANIDE containing the -CN radical. The concept also includes isocyanides. It is distinguished from NITRILES, which denotes organic compounds containing the -CN radical.. cyanides : Salts and C-organyl derivatives of hydrogen cyanide, HC#N.. isocyanide : The isomer HN(+)#C(-) of hydrocyanic acid, HC#N, and its hydrocarbyl derivatives RNC (RN(+)#C(-)).. cyanide : A pseudohalide anion that is the conjugate base of hydrogen cyanide. | 3.03 | 1 | 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. | 2.06 | 1 | 0 | carbamate ester;
indole alkaloid | antidote to curare poisoning;
EC 3.1.1.8 (cholinesterase) inhibitor;
miotic |
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 | 1 | 0 | aporphine alkaloid | alpha-adrenergic drug;
antidyskinesia agent;
antiparkinson drug;
dopamine agonist;
emetic;
serotonergic drug |
aminopyrine
Aminopyrine: A pyrazolone with analgesic, anti-inflammatory, and antipyretic properties but has risk of AGRANULOCYTOSIS. A breath test with 13C-labeled aminopyrine has been used as a non-invasive measure of CYTOCHROME P-450 metabolic activity in LIVER FUNCTION TESTS.. aminophenazone : A pyrazolone that is 1,2-dihydro-3H-pyrazol-3-one substituted by a dimethylamino group at position 4, methyl groups at positions 1 and 5 and a phenyl group at position 2. It exhibits analgesic, anti-inflammatory, and antipyretic properties. | 2.39 | 2 | 0 | pyrazolone;
tertiary amino compound | antipyretic;
environmental contaminant;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
xenobiotic |
adenosine diphosphate
Adenosine Diphosphate: Adenosine 5'-(trihydrogen diphosphate). An adenine nucleotide containing two phosphate groups esterified to the sugar moiety at the 5'-position. | 2.91 | 4 | 0 | adenosine 5'-phosphate;
purine ribonucleoside 5'-diphosphate | fundamental metabolite;
human metabolite |
kanamycin a
Kanamycin: Antibiotic complex produced by Streptomyces kanamyceticus from Japanese soil. Comprises 3 components: kanamycin A, the major component, and kanamycins B and C, the minor components.. kanamycin : Kanamycin is a naturally occurring antibiotic complex from Streptomyces kanamyceticus that consists of several components: kanamycin A, the major component (also usually designated as kanamycin), and kanamycins B, C, D and X the minor components. | 2.41 | 1 | 0 | kanamycins | bacterial metabolite |
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. | 2.88 | 4 | 0 | phenols;
phenylethanolamines;
secondary amino compound | alpha-adrenergic agonist;
cardiotonic drug;
mydriatic agent;
nasal decongestant;
protective agent;
sympathomimetic agent;
vasoconstrictor agent |
tyrosine
Tyrosine: A non-essential amino acid. In animals it is synthesized from PHENYLALANINE. It is also the precursor of EPINEPHRINE; THYROID HORMONES; and melanin.. tyrosine : An alpha-amino acid that is phenylalanine bearing a hydroxy substituent at position 4 on the phenyl ring. | 2.41 | 2 | 0 | amino acid zwitterion;
erythrose 4-phosphate/phosphoenolpyruvate family amino acid;
L-alpha-amino acid;
proteinogenic amino acid;
tyrosine | EC 1.3.1.43 (arogenate dehydrogenase) inhibitor;
fundamental metabolite;
micronutrient;
nutraceutical |
cysteamine
Cysteamine: A mercaptoethylamine compound that is endogenously derived from the COENZYME A degradative pathway. The fact that cysteamine is readily transported into LYSOSOMES where it reacts with CYSTINE to form cysteine-cysteamine disulfide and CYSTEINE has led to its use in CYSTINE DEPLETING AGENTS for the treatment of CYSTINOSIS.. cysteamine : An amine that consists of an ethane skeleton substituted with a thiol group at C-1 and an amino group at C-2. | 2.66 | 3 | 0 | amine;
thiol | geroprotector;
human metabolite;
mouse metabolite;
radiation protective agent |
adenosine monophosphate
Adenosine Monophosphate: Adenine nucleotide containing one phosphate group esterified to the sugar moiety in the 2'-, 3'-, or 5'-position. | 2.05 | 1 | 0 | adenosine 5'-phosphate;
purine ribonucleoside 5'-monophosphate | adenosine A1 receptor agonist;
cofactor;
EC 3.1.3.1 (alkaline phosphatase) inhibitor;
EC 3.1.3.11 (fructose-bisphosphatase) inhibitor;
fundamental metabolite;
micronutrient;
nutraceutical |
methylene blue
Methylene Blue: A compound consisting of dark green crystals or crystalline powder, having a bronze-like luster. Solutions in water or alcohol have a deep blue color. Methylene blue is used as a bacteriologic stain and as an indicator. It inhibits GUANYLATE CYCLASE, and has been used to treat cyanide poisoning and to lower levels of METHEMOGLOBIN.. methylene blue : An organic chloride salt having 3,7-bis(dimethylamino)phenothiazin-5-ium as the counterion. A commonly used dye that also exhibits antioxidant, antimalarial, antidepressant and cardioprotective properties. | 2.76 | 3 | 0 | organic chloride salt | acid-base indicator;
antidepressant;
antimalarial;
antimicrobial agent;
antioxidant;
cardioprotective agent;
EC 1.4.3.4 (monoamine oxidase) inhibitor;
EC 3.1.1.8 (cholinesterase) inhibitor;
EC 4.6.1.2 (guanylate cyclase) inhibitor;
fluorochrome;
histological dye;
neuroprotective agent;
physical tracer |
methacholine chloride
Methacholine Chloride: A quaternary ammonium parasympathomimetic agent with the muscarinic actions of ACETYLCHOLINE. It is hydrolyzed by ACETYLCHOLINESTERASE at a considerably slower rate than ACETYLCHOLINE and is more resistant to hydrolysis by nonspecific CHOLINESTERASES so that its actions are more prolonged. It is used as a parasympathomimetic bronchoconstrictor agent and as a diagnostic aid for bronchial asthma. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1116) | 1.96 | 1 | 0 | quaternary ammonium salt | |
uridine triphosphate
Uridine Triphosphate: Uridine 5'-(tetrahydrogen triphosphate). A uracil nucleotide containing three phosphate groups esterified to the sugar moiety. | 2.01 | 1 | 0 | pyrimidine ribonucleoside 5'-triphosphate;
uridine 5'-phosphate | Escherichia coli metabolite;
mouse metabolite |
methionine
Methionine: A sulfur-containing essential L-amino acid that is important in many body functions.. methionine : A sulfur-containing amino acid that is butyric acid bearing an amino substituent at position 2 and a methylthio substituent at position 4. | 1.97 | 1 | 0 | aspartate family amino acid;
L-alpha-amino acid;
methionine zwitterion;
methionine;
proteinogenic amino acid | antidote to paracetamol poisoning;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical |
phenylalanine
Phenylalanine: An essential aromatic amino acid that is a precursor of MELANIN; DOPAMINE; noradrenalin (NOREPINEPHRINE), and THYROXINE.. L-phenylalanine : The L-enantiomer of phenylalanine.. phenylalanine : An aromatic amino acid that is alanine in which one of the methyl hydrogens is substituted by a phenyl group. | 2 | 1 | 0 | amino acid zwitterion;
erythrose 4-phosphate/phosphoenolpyruvate family amino acid;
L-alpha-amino acid;
phenylalanine;
proteinogenic amino acid | algal metabolite;
EC 3.1.3.1 (alkaline phosphatase) inhibitor;
Escherichia coli metabolite;
human xenobiotic metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
plant metabolite;
Saccharomyces cerevisiae metabolite |
colchicine
(S)-colchicine : A colchicine that has (S)-configuration. It is a secondary metabolite, has anti-inflammatory properties and is used to treat gout, crystal-induced joint inflammation, familial Mediterranean fever, and many other conditions. | 1.97 | 1 | 0 | alkaloid;
colchicine | anti-inflammatory agent;
gout suppressant;
mutagen |
strophanthidin
Strophanthidin: 3 beta,5,14-Trihydroxy-19-oxo-5 beta-card-20(22)-enolide. The aglycone cardioactive agent isolated from Strophanthus Kombe, S. gratus and other species; it is a very toxic material formerly used as digitalis. Synonyms: Apocymarin; Corchorin; Cynotoxin; Corchorgenin. | 1.97 | 1 | 0 | 14beta-hydroxy steroid;
19-oxo steroid;
3beta-hydroxy steroid;
5beta-hydroxy steroid;
cardenolides;
steroid aldehyde | |
cycloheximide
Cycloheximide: Antibiotic substance isolated from streptomycin-producing strains of Streptomyces griseus. It acts by inhibiting elongation during protein synthesis.. cycloheximide : A dicarboximide that is 4-(2-hydroxyethyl)piperidine-2,6-dione in which one of the hydrogens attached to the carbon bearing the hydroxy group is replaced by a 3,5-dimethyl-2-oxocyclohexyl group. It is an antibiotic produced by the bacterium Streptomyces griseus. | 1.96 | 1 | 0 | antibiotic fungicide;
cyclic ketone;
dicarboximide;
piperidine antibiotic;
piperidones;
secondary alcohol | anticoronaviral agent;
bacterial metabolite;
ferroptosis inhibitor;
neuroprotective agent;
protein synthesis inhibitor |
egtazic acid
Egtazic Acid: A chelating agent relatively more specific for calcium and less toxic than EDETIC ACID.. ethylene glycol bis(2-aminoethyl)tetraacetic acid : A diether that is ethylene glycol in which the hydrogens of the hydroxy groups have been replaced by 2-[bis(carboxymethyl)amino]ethyl group respectively. | 2.38 | 2 | 0 | diether;
tertiary amino compound;
tetracarboxylic acid | chelator |
dithionitrobenzoic acid
Dithionitrobenzoic Acid: A standard reagent for the determination of reactive sulfhydryl groups by absorbance measurements. It is used primarily for the determination of sulfhydryl and disulfide groups in proteins. The color produced is due to the formation of a thio anion, 3-carboxyl-4-nitrothiophenolate.. dithionitrobenzoic acid : An organic disulfide that results from the formal oxidative dimerisation of 2-nitro-5-thiobenzoic acid. An indicator used to quantify the number or concentration of thiol groups. | 2.42 | 2 | 0 | nitrobenzoic acid;
organic disulfide | indicator |
histidine
Histidine: An essential amino acid that is required for the production of HISTAMINE.. L-histidine : The L-enantiomer of the amino acid histidine.. histidine : An alpha-amino acid that is propanoic acid bearing an amino substituent at position 2 and a 1H-imidazol-4-yl group at position 3. | 2.67 | 3 | 0 | amino acid zwitterion;
histidine;
L-alpha-amino acid;
polar amino acid zwitterion;
proteinogenic amino acid | algal metabolite;
Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
Saccharomyces cerevisiae metabolite |
arginine
Arginine: An essential amino acid that is physiologically active in the L-form.. arginine : An alpha-amino acid that is glycine in which the alpha-is substituted by a 3-guanidinopropyl group. | 1.98 | 1 | 0 | arginine;
glutamine family amino acid;
L-alpha-amino acid;
proteinogenic amino acid | biomarker;
Escherichia coli metabolite;
micronutrient;
mouse metabolite;
nutraceutical |
methylamine
methyl group : An alkyl group that is the univalent group derived from methane by removal of a hydrogen atom. | 6.96 | 1 | 0 | methylamines;
one-carbon compound;
primary aliphatic amine | mouse metabolite |
propane
Propane: A three carbon alkane with the formula H3CCH2CH3. | 2.05 | 1 | 0 | alkane;
gas molecular entity | food propellant |
trichloroacetaldehyde
trichloroacetaldehyde : An organochlorine compound that consists of acetaldehyde where all the methyl hydrogens are replaced by chloro groups. | 1.96 | 1 | 0 | aldehyde;
organochlorine compound | mouse metabolite |
phencyclidine
Phencyclidine: A hallucinogen formerly used as a veterinary anesthetic, and briefly as a general anesthetic for humans. Phencyclidine is similar to KETAMINE in structure and in many of its effects. Like ketamine, it can produce a dissociative state. It exerts its pharmacological action through inhibition of NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE). As a drug of abuse, it is known as PCP and Angel Dust.. phencyclidine : A member of the class of piperidines that is piperidine in which the nitrogen is substituted with a 1-phenylcyclohexyl group. Formerly used as an anaesthetic agent, it exhibits both hallucinogenic and neurotoxic effects. | 2.13 | 1 | 0 | benzenes;
piperidines | anaesthetic;
neurotoxin;
NMDA receptor antagonist;
psychotropic drug |
propoxycaine
Propoxycaine: A local anesthetic of the ester type that has a rapid onset of action and a longer duration of action than procaine hydrochloride. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1017) | 1.96 | 1 | 0 | benzoate ester | |
ethyl acetate
ethyl acetate : The acetate ester formed between acetic acid and ethanol. | 2.02 | 1 | 0 | acetate ester;
ethyl ester;
volatile organic compound | EC 3.4.19.3 (pyroglutamyl-peptidase I) inhibitor;
metabolite;
polar aprotic solvent;
Saccharomyces cerevisiae metabolite |
yohimbine
Yohimbine: A plant alkaloid with alpha-2-adrenergic blocking activity. Yohimbine has been used as a mydriatic and in the treatment of ERECTILE DYSFUNCTION.. yohimbine : An indole alkaloid with alpha2-adrenoceptor antagonist activity. It is produced by Corynanthe johimbe and Rauwolfia serpentina. | 1.97 | 1 | 0 | methyl 17-hydroxy-20xi-yohimban-16-carboxylate | alpha-adrenergic antagonist;
dopamine receptor D2 antagonist;
serotonergic antagonist |
thiazoles
[no description available] | 4.89 | 36 | 0 | 1,3-thiazoles;
mancude organic heteromonocyclic parent;
monocyclic heteroarene | |
pyrazines
Pyrazines: A heterocyclic aromatic organic compound with the chemical formula C4H4N2.. pyrazine : A diazine that is benzene in which the carbon atoms at positions 1 and 4 have been replaced by nitrogen atoms. | 1.96 | 1 | 0 | diazine;
pyrazines | Daphnia magna metabolite |
nitroblue tetrazolium
Nitroblue Tetrazolium: Colorless to yellow dye that is reducible to blue or black formazan crystals by certain cells; formerly used to distinguish between nonbacterial and bacterial diseases, the latter causing neutrophils to reduce the dye; used to confirm diagnosis of chronic granulomatous disease. | 1.96 | 1 | 0 | organic cation | |
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. | 1.96 | 1 | 0 | phenethylamine alkaloid;
phenylethanolamines | bacterial metabolite;
environmental contaminant;
nasal decongestant;
plant metabolite;
sympathomimetic agent;
vasoconstrictor agent;
xenobiotic |
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. | 2.41 | 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. | 1.96 | 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. | 1.97 | 1 | 0 | ergoline alkaloid | |
bicuculline
Bicuculline: An isoquinoline alkaloid obtained from Dicentra cucullaria and other plants. It is a competitive antagonist for GABA-A receptors.. bicuculline : A benzylisoquinoline alkaloid that is 6-methyl-5,6,7,8-tetrahydro[1,3]dioxolo[4,5-g]isoquinoline which is substituted at the 5-pro-S position by a (6R)-8-oxo-6,8-dihydrofuro[3,4-e][1,3]benzodioxol-6-yl group. A light-sensitive competitive antagonist of GABAA receptors. It was originally identified in 1932 in plant alkaloid extracts and has been isolated from Dicentra cucullaria, Adlumia fungosa, Fumariaceae, and several Corydalis species. | 2 | 1 | 0 | benzylisoquinoline alkaloid;
isoquinoline alkaloid;
isoquinolines | agrochemical;
central nervous system stimulant;
GABA-gated chloride channel antagonist;
GABAA receptor antagonist;
neurotoxin |
alpha-aminopyridine
alpha-aminopyridine: RN given refers to parent cpd; structure in Merck Index, 9th ed, #485. aminopyridine : Compounds containing a pyridine skeleton substituted by one or more amine groups. | 1.96 | 1 | 0 | | |
luminol
Luminol: 5-Amino-2,3-dihydro-1,4-phthalazinedione. Substance that emits light on oxidation. It is used in chemical determinations. | 1.96 | 1 | 0 | | |
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. | 1.95 | 1 | 0 | methoxybenzenes;
phenols | |
methamphetamine
Methamphetamine: A central nervous system stimulant and sympathomimetic with actions and uses similar to DEXTROAMPHETAMINE. The smokable form is a drug of abuse and is referred to as crank, crystal, crystal meth, ice, and speed.. methamphetamine : A member of the class of amphetamines in which the amino group of (S)-amphetamine carries a methyl substituent. | 2.03 | 1 | 0 | amphetamines;
secondary amine | central nervous system stimulant;
environmental contaminant;
neurotoxin;
psychotropic drug;
xenobiotic |
galegine
galegine: structure given in first source; from Verbesina encelioides and Gelega oficinalis plants; toxic to livestock | 2.31 | 1 | 0 | guanidines | |
acetylcysteine
N-acetyl-L-cysteine : An N-acetyl-L-amino acid that is the N-acetylated derivative of the natural amino acid L-cysteine. | 1.97 | 1 | 0 | acetylcysteine;
L-cysteine derivative;
N-acetyl-L-amino acid | antidote to paracetamol poisoning;
antiinfective agent;
antioxidant;
antiviral drug;
ferroptosis inhibitor;
geroprotector;
human metabolite;
mucolytic;
radical scavenger;
vulnerary |
amiloride
Amiloride: A pyrazine compound inhibiting SODIUM reabsorption through SODIUM CHANNELS in renal EPITHELIAL CELLS. This inhibition creates a negative potential in the luminal membranes of principal cells, located in the distal convoluted tubule and collecting duct. Negative potential reduces secretion of potassium and hydrogen ions. Amiloride is used in conjunction with DIURETICS to spare POTASSIUM loss. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p705). amiloride : A member of the class of pyrazines resulting from the formal monoacylation of guanidine with the carboxy group of 3,5-diamino-6-chloropyrazine-2-carboxylic acid. | 2.39 | 2 | 0 | aromatic amine;
guanidines;
organochlorine compound;
pyrazines | diuretic;
sodium channel blocker |
dithiothreitol
1,4-dimercaptobutane-2,3-diol : A glycol that is butane-2,3-diol in which a hydrogen from each of the methyl groups is replaced by a thiol group.. 1,4-dithiothreitol : The threo-diastereomer of 1,4-dimercaptobutane-2,3-diol. | 1.96 | 1 | 0 | 1,4-dimercaptobutane-2,3-diol;
butanediols;
dithiol;
glycol;
thiol | chelator;
human metabolite;
reducing agent |
tranylcypromine
Tranylcypromine: A propylamine formed from the cyclization of the side chain of amphetamine. This monoamine oxidase inhibitor is effective in the treatment of major depression, dysthymic disorder, and atypical depression. It also is useful in panic and phobic disorders. (From AMA Drug Evaluations Annual, 1994, p311). tranylcypromine : A racemate comprising equal amounts of (1R,2S)- and (1S,2R)-2-phenylcyclopropan-1-amine. An irreversible monoamine oxidase inhibitor that is used as an antidepressant (INN tranylcypromine).. (1R,2S)-tranylcypromine : A 2-phenylcyclopropan-1-amine that is the (1R,2S)-enantiomer of tranylcypromine. | 2.37 | 2 | 0 | 2-phenylcyclopropan-1-amine | |
azatadine
azatadine: indulian (UD 21;71k) is dimaleate; do not confuse with AZACITIDINE. azatadine : A benzo[5,6]cyclohepta[1,2-b]pyridine having a 1-methylpiperidin-4-ylidene group at the 11-position. | 2.02 | 1 | 0 | benzocycloheptapyridine;
tertiary amine | anti-allergic agent;
H1-receptor antagonist |
iprindole
Iprindole: A tricyclic antidepressant that has actions and uses similar to those of AMITRIPTYLINE, but has only weak antimuscarinic and sedative effects. (From Martindale, The Extra Pharmacopoeia, 30th ed, p257) | 1.96 | 1 | 0 | indoles | |
dimethindene
Dimethindene: A histamine H1 antagonist. It is used in hypersensitivity reactions, in rhinitis, for pruritus, and in some common cold remedies. | 1.96 | 1 | 0 | indene | |
palladium
Palladium: A chemical element having an atomic weight of 106.4, atomic number of 46, and the symbol Pd. It is a white, ductile metal resembling platinum, and following it in abundance and importance of applications. It is used in dentistry in the form of gold, silver, and copper alloys.. palladium : Chemical element (nickel group element atom) with atomic number 46. | 2.41 | 1 | 0 | metal allergen;
nickel group element atom;
platinum group metal atom | |
platinum
Platinum: A heavy, soft, whitish metal, resembling tin, with atomic number 78, atomic weight 195.084, symbol Pt. It is used in manufacturing equipment for laboratory and industrial use. It occurs as a black powder (platinum black) and as a spongy substance (spongy platinum) and may have been known in Pliny's time as alutiae. | 2.41 | 1 | 0 | elemental platinum;
nickel group element atom;
platinum group metal atom | |
silver
Silver: An element with the atomic symbol Ag, atomic number 47, and atomic weight 107.87. It is a soft metal that is used medically in surgical instruments, dental prostheses, and alloys. Long-continued use of silver salts can lead to a form of poisoning known as ARGYRIA. | 2.41 | 1 | 0 | copper group element atom;
elemental silver | Escherichia coli metabolite |
titanium
Titanium: A dark-gray, metallic element of widespread distribution but occurring in small amounts with atomic number, 22, atomic weight, 47.867 and symbol, Ti; specific gravity, 4.5; used for fixation of fractures. | 2.41 | 1 | 0 | titanium group element atom | |
gold
Gold: A yellow metallic element with the atomic symbol Au, atomic number 79, and atomic weight 197. It is used in jewelry, goldplating of other metals, as currency, and in dental restoration. Many of its clinical applications, such as ANTIRHEUMATIC AGENTS, are in the form of its salts. | 3.33 | 4 | 0 | copper group element atom;
elemental gold | |
galactosamine
2-amino-2-deoxy-D-galactopyranose : The pyranose form of D-galactosamine.. D-galactosamine : The D-stereoisomer of galactosamine. | 1.99 | 1 | 0 | D-galactosamine;
primary amino compound | toxin |
deuterium
Deuterium: The stable isotope of hydrogen. It has one neutron and one proton in the nucleus. | 2.37 | 2 | 0 | dihydrogen | |
deuterium oxide
Deuterium Oxide: The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes. | 1.97 | 1 | 0 | deuterated compound;
water | NMR solvent |
barium chloride
barium chloride: RN given refers to parent cpd. barium chloride : The inorganic dichloride salt of barium. | 1.98 | 1 | 0 | barium salt;
inorganic chloride | potassium channel blocker |
trolamine salicylate
Arthritis: Acute or chronic inflammation of JOINTS. | 1.96 | 1 | 0 | | |
titanium dioxide
titanium dioxide: used medically as protectant against externally caused irritation & sunlight; high concentrations of dust may cause irritation to respiratory tract; RN given refers to titanium oxide (TiO2); structure. titanium dioxide : A titanium oxide with the formula TiO2. A naturally occurring oxide sourced from ilmenite, rutile and anatase, it has a wide range of applications. | 2.41 | 1 | 0 | titanium oxides | food colouring |
cromolyn sodium
Cromolyn Sodium: A chromone complex that acts by inhibiting the release of chemical mediators from sensitized MAST CELLS. It is used in the prophylactic treatment of both allergic and exercise-induced asthma, but does not affect an established asthmatic attack.. disodium cromoglycate : An organic sodium salt that is the disodium salt of cromoglycic acid. | 1.96 | 1 | 0 | organic sodium salt | anti-asthmatic drug;
drug allergen |
tetradecanoylphorbol acetate
Tetradecanoylphorbol Acetate: A phorbol ester found in CROTON OIL with very effective tumor promoting activity. It stimulates the synthesis of both DNA and RNA.. phorbol ester : Esters of phorbol, originally found in croton oil (from Croton tiglium, of the family Euphorbiaceae). A number of phorbol esters possess activity as tumour promoters and activate the mechanisms associated with cell growth. Some of these are used in experiments as activators of protein kinase C.. phorbol 13-acetate 12-myristate : A phorbol ester that is phorbol in which the hydroxy groups at the cyclopropane ring juction (position 13) and the adjacent carbon (position 12) have been converted into the corresponding acetate and myristate esters. It is a major active constituent of the seed oil of Croton tiglium. It has been used as a tumour promoting agent for skin carcinogenesis in rodents and is associated with increased cell proliferation of malignant cells. However its function is controversial since a decrease in cell proliferation has also been observed in several cancer cell types. | 2.66 | 3 | 0 | acetate ester;
diester;
phorbol ester;
tertiary alpha-hydroxy ketone;
tetradecanoate ester | antineoplastic agent;
apoptosis inducer;
carcinogenic agent;
mitogen;
plant metabolite;
protein kinase C agonist;
reactive oxygen species generator |
iodine
[no description available] | 1.99 | 1 | 0 | halide anion;
monoatomic iodine | human metabolite |
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 |
phenyl acetate
phenyl acetate: The ester formed between phenol and acetic acid. Don't confuse with phenylacetic acid derivatives listed under PHENYLACETATES.. phenyl acetate : An acetate ester obtained by the formal condensation of phenol with acetic acid. | 2.02 | 1 | 0 | benzenes;
phenyl acetates | |
isothiuronium
Isothiuronium: An undecenyl THIOUREA which may have topical anti-inflammatory activity. | 3.22 | 6 | 0 | | |
dexchlorpheniramine
dexchlorpheniramine: RN given refers to parent cpd(S)-isomer | 3.49 | 2 | 0 | chlorphenamine | |
adenylyl imidodiphosphate
Adenylyl Imidodiphosphate: 5'-Adenylic acid, monoanhydride with imidodiphosphoric acid. An analog of ATP, in which the oxygen atom bridging the beta to the gamma phosphate is replaced by a nitrogen atom. It is a potent competitive inhibitor of soluble and membrane-bound mitochondrial ATPase and also inhibits ATP-dependent reactions of oxidative phosphorylation. | 2.05 | 1 | 0 | adenosine 5'-phosphate | |
paclitaxel
Taxus: Genus of coniferous yew trees or shrubs, several species of which have medicinal uses. Notable is the Pacific yew, Taxus brevifolia, which is used to make the anti-neoplastic drug taxol (PACLITAXEL). | 2.21 | 1 | 0 | taxane diterpenoid;
tetracyclic diterpenoid | antineoplastic agent;
human metabolite;
metabolite;
microtubule-stabilising agent |
substance p
[no description available] | 2.37 | 2 | 0 | peptide | neurokinin-1 receptor agonist;
neurotransmitter;
vasodilator agent |
4-methylhistamine
4-methylhistamine: RN given refers to parent cpd. 4-methylhistamine : An aralkylamino compound that is histamine bearing a methyl substituent at the 5 position on the ring. | 12.16 | 29 | 1 | aralkylamino compound;
imidazoles | histamine agonist;
metabolite |
impromidine
Impromidine: A highly potent and specific histamine H2 receptor agonist. It has been used diagnostically as a gastric secretion indicator. | 6.22 | 46 | 0 | | |
colforsin
Colforsin: Potent activator of the adenylate cyclase system and the biosynthesis of cyclic AMP. From the plant COLEUS FORSKOHLII. Has antihypertensive, positive inotropic, platelet aggregation inhibitory, and smooth muscle relaxant activities; also lowers intraocular pressure and promotes release of hormones from the pituitary gland. | 3.49 | 8 | 0 | acetate ester;
cyclic ketone;
labdane diterpenoid;
organic heterotricyclic compound;
tertiary alpha-hydroxy ketone;
triol | adenylate cyclase agonist;
anti-HIV agent;
antihypertensive agent;
plant metabolite;
platelet aggregation inhibitor;
protein kinase A agonist |
tiotidine
tiotidine: UD gives slightly different structure for this cpd; RN given refers to parent cpd; structure in first source | 4.86 | 11 | 0 | thiazoles | |
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. | 2.71 | 3 | 0 | aromatic ether;
C-nitro compound;
monochlorobenzenes;
N-sulfonylcarboxamide;
organofluorine compound;
phenols | agrochemical;
EC 1.3.3.4 (protoporphyrinogen oxidase) inhibitor;
herbicide |
oxmetidine
oxmetidine: specific histamine H2 receptor antagonist with MW around 1.8 times that of cimetidine; differs from cimetidine by carrying an isocytosine ring instead of a cyanoguanidine in side chain; RN given refers to parent cpd. oxmetidine : A 2-aminopyrimidin-4(1H)-one derivative bearing a 1,3-benzodioxol-5-ylmethyl group at the 5-position and with a 4-(5-methyl-(1H)imidazol-4-yl)-3-thiabutyl substituent attached to the 2-amino group. It is a specific histamine H2-receptor antagonist. | 3.06 | 5 | 0 | benzodioxoles;
imidazoles;
pyrimidone | anti-ulcer drug;
H2-receptor antagonist |
piritrexim
piritrexim: RN given refers to parent cpd; structure given in first source | 1.99 | 1 | 0 | | |
quinpirole
Quinpirole: A dopamine D2/D3 receptor agonist.. quinpirole : A pyrazoloquinoline that is (4aR,8aR)-4,4a,5,6,7,8,8a,9-octahydro-1H-pyrazolo[3,4-g]quinoline substituted by a propyl group at position 5. It acts as a dopamine agonist. | 2 | 1 | 0 | pyrazoloquinoline | dopamine agonist |
cicletanine
[no description available] | 1.97 | 1 | 0 | organochlorine compound | |
temelastine
[no description available] | 1.96 | 1 | 0 | pyrimidone | |
tzu 0460
TZU 0460: RN given refers to HCl; structure given in first source | 1.96 | 1 | 0 | piperidines | |
clopidogrel
Clopidogrel: A ticlopidine analog and platelet purinergic P2Y receptor antagonist that inhibits adenosine diphosphate-mediated PLATELET AGGREGATION. It is used to prevent THROMBOEMBOLISM in patients with ARTERIAL OCCLUSIVE DISEASES; MYOCARDIAL INFARCTION; STROKE; or ATRIAL FIBRILLATION.. clopidogrel : A thienopyridine that is 4,5,6,7-tetrahydrothieno[3,2-c]pyridine in which the hydrogen attached to the nitrogen is replaced by an o-chlorobenzyl group, the methylene hydrogen of which is replaced by a methoxycarbonyl group (the S enantiomer). A P2Y12 receptor antagonist, it is used to inhibit blood clots and prevent heart attacks. | 2.72 | 2 | 0 | methyl ester;
monochlorobenzenes;
thienopyridine | anticoagulant;
P2Y12 receptor antagonist;
platelet aggregation inhibitor |
adenosine
quinquefolan B: isolated from roots of Panax quinquefolium L.; RN not in Chemline 10/87; RN from Toxlit | 3.23 | 6 | 0 | adenosines;
purines D-ribonucleoside | analgesic;
anti-arrhythmia drug;
fundamental metabolite;
human metabolite;
vasodilator agent |
glucose, (beta-d)-isomer
beta-D-glucose : D-Glucopyranose with beta configuration at the anomeric centre.. (1->4)-beta-D-glucan : A beta-D-glucan in which the glucose units are connected by (1->4) linkages.. (1->3)-beta-D-glucan : A beta-D-glucan in which the glucose units are connected by (1->3) linkages. | 1.95 | 1 | 0 | D-glucopyranose | epitope;
mouse metabolite |
arpromidine
arpromidine: structure given in first source | 1.98 | 1 | 0 | | |
mizolastine
[no description available] | 2.02 | 1 | 0 | benzimidazoles | |
cd 3 color developer
CD 3 color developer: used in film laboratories; causes contact dermatitis & lichenoid reactions; RN given refers to parent cpd | 2.37 | 2 | 0 | | |
3-methyl-n,n-diethyl-p-phenylenediamine
3-methyl-N,N-diethyl-p-phenylenediamine: RN given refers to parent cpd; structure | 2.37 | 2 | 0 | | |
mifentidine
[no description available] | 3.22 | 6 | 0 | | |
ramixotidine
ramixotidine: structure given in first source | 2.37 | 2 | 0 | | |
perfluorooctane sulfonic acid
perfluorooctane-1-sulfonic acid : A perfluoroalkanesulfonic acid that is octane-1-sulfonic acid in which all seventeen of the hydrogens that are attached to carbons hvae been replaced by fluorines. | 2.41 | 1 | 0 | perfluoroalkanesulfonic acid | antilipemic drug;
persistent organic pollutant |
2-(2-aminoethyl)pyridine
2-(2-aminoethyl)pyridine: histamine H1 receptor agonist inducing cross-tolerance to histamine; RN given refers to parent cpd; structure | 5.35 | 58 | 0 | aminoalkylpyridine;
primary amine | histamine agonist;
metabolite |
biocytin
biocytin : A monocarboxylic acid amide that results from the formal condensation of the carboxylic acid group of biotin with the N(6)-amino group of L-lysine. | 2.17 | 1 | 0 | azabicycloalkane;
L-alpha-amino acid zwitterion;
L-lysine derivative;
monocarboxylic acid amide;
non-proteinogenic L-alpha-amino acid;
thiabicycloalkane;
ureas | mouse metabolite |
nordimaprit
nordimaprit: effective agonist in the inhibition of lymphocyte activation | 4.12 | 16 | 0 | | |
2-(2-aminoethyl)thiazole
2-(2-aminoethyl)thiazole: receptor H1 agonist; RN given refers to parent cpd | 4.37 | 21 | 0 | 1,3-thiazoles | |
2-methylhistamine
2-methylhistamine: RN given refers to parent cpd. 2-methylhistamine : An aralkylamino compound that is histamine bearing a methyl substituent at the 2 position on the ring. | 6.6 | 16 | 1 | aralkylamino compound;
imidazoles | histamine agonist;
metabolite |
8-((4-chlorophenyl)thio)cyclic-3',5'-amp
8-((4-chlorophenyl)thio)cyclic-3',5'-AMP: lowers cAMP in heart & fat cells; cAMP-dependent kinase inhibitor. 8-(4-chlorophenylthio)-cAMP : A 3',5'-cyclic purine nucleotide that is 3',5'-cyclic AMP in which the hydrogen at position 2 on the purine fragment is replaced by a 4-chlorophenylthio group. | 1.96 | 1 | 0 | 3',5'-cyclic purine nucleotide;
adenyl ribonucleotide;
aryl sulfide;
organochlorine compound | protein kinase agonist |
sk&f 95282
zolantidine: structure given in first source | 2.92 | 4 | 0 | piperidines | |
1,3-dipropyl-8-(2-amino-4-chlorophenyl)xanthine
[no description available] | 2.05 | 1 | 0 | | |
p-methoxy-n-methylphenethylamine
p-Methoxy-N-methylphenethylamine: A potent mast cell degranulator. It is involved in histamine release.. N,O-dimethyltyramine : A secondary amino compound that is tyramine in which the hydrogen of the phenolic hydroxy group has been replaced by a methyl group. | 3.07 | 5 | 0 | aromatic ether;
secondary amino compound | metabolite |
fpl 55712
FPL 55712: inhibitor of SRS-A and LTC4 and LTD4 receptors | 1.95 | 1 | 0 | aromatic ketone | |
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. | 1.96 | 1 | 0 | | |
tyrosyl-prolyl-leucyl-glycinamide
tyrosyl-prolyl-leucyl-glycinamide: found in rat brain | 2.01 | 1 | 0 | | |
n(6)-(3-iodobenzyl)-5'-n-methylcarboxamidoadenosine
N(6)-(3-iodobenzyl)-5'-N-methylcarboxamidoadenosine: structure given in first source; a selective A(3) adenosine receptor agonist. 3-iodobenzyl-5'-N-methylcarboxamidoadenosine : A derivative of adenosine in which the 5'-hydroxymethyl group is replaced by N-ethylcarboxamido and one of the hydrogens of the exocyclic amino function is substituted by a 3-iodobenzyl group. | 2.05 | 1 | 0 | adenosines;
monocarboxylic acid amide;
organoiodine compound | adenosine A3 receptor agonist |
2-chloro-n(6)cyclopentyladenosine
2-chloro-N(6)cyclopentyladenosine: highly selective agonist at A1 adenosine receptors | 2.05 | 1 | 0 | | |
histamine trifluoromethyl-toluidide
histamine trifluoromethyl-toluidide: structure given in first source | 2.42 | 2 | 0 | (trifluoromethyl)benzenes | |
2,6-dimethyl-4-furyl-1,4-dihydropyridine-5-dicarboxylate
[no description available] | 1.97 | 1 | 0 | | |
amthamine
amthamine: histamine H2 receptor agonist; structure & RN given in first source; RN given refers to parent cpd | 8.27 | 6 | 0 | thiazoles | |
s-(2-(n,n-diisopropylamino)ethyl)isothiourea
S-(2-(N,N-diisopropylamino)ethyl)isothiourea: structure in first source | 2.96 | 4 | 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. | 2.39 | 2 | 0 | amino acid zwitterion;
arginine derivative;
guanidines;
L-arginine derivative;
non-proteinogenic L-alpha-amino acid | |
iodoproxyfan
iodoproxyfan: structure given in first source | 2.44 | 2 | 0 | | |
8-cyclopentyl-3-(3-((4-(fluorosulfonyl)benzoyl)oxy)propyl)-1-propylxanthine
8-cyclopentyl-3-(3-((4-(fluorosulfonyl)benzoyl)oxy)propyl)-1-propylxanthine: structure given in first source | 2.05 | 1 | 0 | | |
4-nitro-2-(3-phenylpropylamino)benzoate
4-nitro-2-(3-phenylpropylamino)benzoate: chloride channel antagonist | 1.99 | 1 | 0 | | |
3-amino-2-methyl-8-phenylmethoxyimidazo(1,2-a)pyrazine
3-amino-2-methyl-8-phenylmethoxyimidazo(1,2-a)pyrazine: structure given in first source | 1.96 | 1 | 0 | | |
alpha-methylhistamine
(R)-alpha-methylhistamine : An aralkylamino compound that is histamine bearing a methyl substituent at the alpha-position (the R-enantiomer). | 4.49 | 7 | 0 | aralkylamino compound;
imidazoles | H3-receptor agonist |
aminopotentidine
aminopotentidine: structure given in first source; RN given refers to the oxalate. aminopotentidine : A benzamide obtained by formal condensation of the carboxy group of 4-aminobenzoic acid with the primary amino group of 1-(2-aminoethyl)-2-cyano-3-{3-[3-(piperidin-1-ylmethyl)phenoxy]propyl}guanidine. | 2.02 | 1 | 0 | aromatic ether;
benzamides;
guanidines;
nitrile;
piperidines;
substituted aniline | H2-receptor antagonist |
h 35-25
H 35-25: RN given refers to parent cpd; structure | 1.96 | 1 | 0 | | |
imidazolyl-4-propylamine
imidazolyl-4-propylamine: structure given in first source | 2.44 | 2 | 0 | | |
biotin
vitamin B7 : Any member of a group of vitamers that belong to the chemical structural class called biotins that exhibit biological activity against vitamin B7 deficiency. Vitamin B7 deficiency is very rare in individuals who take a normal balanced diet. Foods rich in biotin are egg yolk, liver, cereals, vegetables (spinach, mushrooms) and rice. Symptoms associated with vitamin B7 deficiency include thinning hair, scaly skin rashes around eyes, nose and mouth, and brittle nails. The vitamers include biotin and its ionized and salt forms. | 2.41 | 1 | 0 | biotins;
vitamin B7 | coenzyme;
cofactor;
Escherichia coli metabolite;
fundamental metabolite;
human metabolite;
mouse metabolite;
nutraceutical;
prosthetic group;
Saccharomyces cerevisiae metabolite |
angiotensin ii
Giapreza: injectable form of angiotensin II used to increase blood pressure in adult patients with septic or other distributive shock. Ile(5)-angiotensin II : An angiotensin II that acts on the central nervous system (PDB entry: 1N9V). | 1.97 | 1 | 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. | 3.76 | 11 | 0 | | |
iodoaminopotentidine
iodoaminopotentidine: histamine H2 receptor antagonist; structure given in first source | 1.99 | 1 | 0 | | |
sk&f 91486
3-(4(5)-imidazolyl)propylguanidine: partial agonist at histamine H(2)-receptor; structure | 1.98 | 1 | 0 | | |
alpha-fluoromethylhistidine
alpha-fluoromethylhistidine: RN given refers to cpd without isomeric designation | 2.88 | 4 | 0 | | |
benzofurans
Benzofurans: Compounds that contain a BENZENE ring fused to a furan ring. | 1.96 | 1 | 0 | | |
mrs 1191
MRS 1191: a selective A3 adenosine receptor antagonist; structure given in first source | 2.05 | 1 | 0 | cinnamate ester | |
dihydropyridines
Dihydropyridines: Pyridine moieties which are partially saturated by the addition of two hydrogen atoms in any position. | 2.41 | 2 | 0 | | |
glycogen
glycogen : A polydisperse, highly branched glucan composed of chains of D-glucopyranose residues in alpha(1->4) glycosidic linkage, joined together by alpha(1->6) glycosidic linkages. A small number of alpha(1->3) glycosidic linkages and some cumulative alpha(1->6) links also may occur. The branches in glycogen typically contain 8 to 12 glucose residues. | 1.96 | 1 | 0 | | |
bradykinin
[no description available] | 2.69 | 3 | 0 | oligopeptide | human blood serum metabolite;
vasodilator agent |
glucosamine
D-glucosamine : An amino sugar whose structure comprises D-glucose having an amino substituent at position 2.. 2-amino-2-deoxy-D-glucopyranose : A D-glucosamine whose structure comprises D-glucopyranose having an amino substituent at position 2. | 1.96 | 1 | 0 | D-glucosamine | Escherichia coli metabolite;
geroprotector;
mouse metabolite |
nitroarginine
Nitroarginine: An inhibitor of nitric oxide synthetase which has been shown to prevent glutamate toxicity. Nitroarginine has been experimentally tested for its ability to prevent ammonia toxicity and ammonia-induced alterations in brain energy and ammonia metabolites. (Neurochem Res 1995:200(4):451-6). N(gamma)-nitro-L-arginine : An L-arginine derivative that is L-arginine in which the terminal nitrogen of the guanidyl group is replaced by a nitro group. | 2.4 | 2 | 0 | guanidines;
L-arginine derivative;
N-nitro compound;
non-proteinogenic L-alpha-amino acid | |
netilmicin
Netilmicin: Semisynthetic 1-N-ethyl derivative of SISOMYCIN, an aminoglycoside antibiotic with action similar to gentamicin, but less ear and kidney toxicity. | 2.41 | 1 | 0 | | |
n-formylmethionine leucyl-phenylalanine
N-Formylmethionine Leucyl-Phenylalanine: A formylated tripeptide originally isolated from bacterial filtrates that is positively chemotactic to polymorphonuclear leucocytes, and causes them to release lysosomal enzymes and become metabolically activated.. N-formyl-L-methionyl-L-leucyl-L-phenylalanine : A tripeptide composed of L-Met, L-Leu and L-Phe in a linear sequence with a formyl group at the amino terminus. It acts as a potent inducer of leucocyte chemotaxis and macrophage activator as well as a ligand for the FPR receptor. | 1.98 | 1 | 0 | tripeptide | |
ergonovine
Ergonovine: An ergot alkaloid (ERGOT ALKALOIDS) with uterine and VASCULAR SMOOTH MUSCLE contractile properties.. ergometrine : A monocarboxylic acid amide that is lysergamide in which one of the hydrogens attached to the amide nitrogen is substituted by a 1-hydroxypropan-2-yl group (S-configuration). An ergot alkaloid that has a particularly powerful action on the uterus, its maleate (and formerly tartrate) salt is used in the active management of the third stage of labour, and to prevent or treat postpartum of postabortal haemorrhage caused by uterine atony: by maintaining uterine contraction and tone, blood vessels in the uterine wall are compressed and blood flow reduced. | 1.96 | 1 | 0 | ergot alkaloid;
monocarboxylic acid amide;
organic heterotetracyclic compound;
primary alcohol;
secondary amino compound;
tertiary amino compound | diagnostic agent;
fungal metabolite;
oxytocic;
toxin |
maleic acid
maleic acid: RN given refers to parent cpd(Z)-isomer which is maleic acid; all RR's given refer to (Z)-isomer; (E)-isomer is fumaric acid. maleic acid : A butenedioic acid in which the double bond has cis- (Z)-configuration. | 1.98 | 1 | 0 | butenedioic acid | algal metabolite;
mouse metabolite;
plant metabolite |
arachidonic acid
icosa-5,8,11,14-tetraenoic acid : Any icosatetraenoic acid with the double bonds at positions 5, 8, 11 and 14.. arachidonate : A long-chain fatty acid anion resulting from the removal of a proton from the carboxy group of arachidonic acid. | 2.37 | 2 | 0 | icosa-5,8,11,14-tetraenoic acid;
long-chain fatty acid;
omega-6 fatty acid | Daphnia galeata metabolite;
EC 3.1.1.1 (carboxylesterase) inhibitor;
human metabolite;
mouse metabolite |
keratan sulfate
Keratan Sulfate: A sulfated mucopolysaccharide initially isolated from bovine cornea. At least two types are known. Type I, found mostly in the cornea, contains D-galactose and D-glucosamine-6-O-sulfate as the repeating unit; type II, found in skeletal tissues, contains D-galactose and D-galactosamine-6-O-sulfate as the repeating unit.. keratan sulfate : A sulfated glycosaminoglycan, a linear polymer that consists of the repeating disaccharide [3)-beta-Gal-(1->4)-beta-GlcNAc-(1->] and containing sulfo groups located at random positions.. keratan 6'-sulfate : A keratan sulfate with random sulfation at the 6'-position. | 1.98 | 1 | 0 | | |
adenosine-5'-(n-ethylcarboxamide)
Adenosine-5'-(N-ethylcarboxamide): A stable adenosine A1 and A2 receptor agonist. Experimentally, it inhibits cAMP and cGMP phosphodiesterase activity.. N-ethyl-5'-carboxamidoadenosine : A derivative of adenosine in which the 5'-hydroxymethyl group is replaced by an N-ethylcarboxamido group. | 1.98 | 1 | 0 | adenosines;
monocarboxylic acid amide | adenosine A1 receptor agonist;
adenosine A2A receptor agonist;
antineoplastic agent;
EC 3.1.4.* (phosphoric diester hydrolase) inhibitor;
vasodilator agent |
prostaglandin d2
Prostaglandin D2: The principal cyclooxygenase metabolite of arachidonic acid. It is released upon activation of mast cells and is also synthesized by alveolar macrophages. Among its many biological actions, the most important are its bronchoconstrictor, platelet-activating-factor-inhibitory, and cytotoxic effects.. prostaglandin D2 : A member of the class of prostaglandins D that is prosta-5,13-dien-1-oic acid substituted by hydroxy groups at positions 9 and 15 and an oxo group at position 11 (the 5Z,9alpha,13E,15S- stereoisomer). | 1.96 | 1 | 0 | prostaglandins D | human metabolite;
mouse metabolite |
isomethyleugenol
Methylation: Addition of methyl groups. In histo-chemistry methylation is used to esterify carboxyl groups and remove sulfate groups by treating tissue sections with hot methanol in the presence of hydrochloric acid. (From Stedman, 25th ed) | 2.37 | 2 | 0 | isomethyleugenol | |
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. | 1.96 | 1 | 0 | vasopressin | cardiovascular drug;
hematologic agent;
mitogen |
dexchlorpheniramine
[no description available] | 3.07 | 1 | 0 | chlorphenamine | |
curcumin
Curcumin: A yellow-orange dye obtained from tumeric, the powdered root of CURCUMA longa. It is used in the preparation of curcuma paper and the detection of boron. Curcumin appears to possess a spectrum of pharmacological properties, due primarily to its inhibitory effects on metabolic enzymes.. curcumin : A beta-diketone that is methane in which two of the hydrogens are substituted by feruloyl groups. A natural dyestuff found in the root of Curcuma longa. | 2.02 | 1 | 0 | aromatic ether;
beta-diketone;
diarylheptanoid;
enone;
polyphenol | anti-inflammatory agent;
antifungal agent;
antineoplastic agent;
biological pigment;
contraceptive drug;
dye;
EC 1.1.1.205 (IMP dehydrogenase) inhibitor;
EC 1.1.1.21 (aldehyde reductase) inhibitor;
EC 1.1.1.25 (shikimate dehydrogenase) inhibitor;
EC 1.6.5.2 [NAD(P)H dehydrogenase (quinone)] inhibitor;
EC 1.8.1.9 (thioredoxin reductase) inhibitor;
EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor;
EC 3.5.1.98 (histone deacetylase) inhibitor;
flavouring agent;
food colouring;
geroprotector;
hepatoprotective agent;
immunomodulator;
iron chelator;
ligand;
lipoxygenase inhibitor;
metabolite;
neuroprotective agent;
nutraceutical;
radical scavenger |
capsaicin
ALGRX-4975: an injectable capsaicin (TRPV1 receptor agonist) formulation for longlasting pain relief. capsaicinoid : A family of aromatic fatty amides produced as secondary metabolites by chilli peppers. | 1.97 | 1 | 0 | capsaicinoid | non-narcotic analgesic;
TRPV1 agonist;
voltage-gated sodium channel blocker |
metiamide
Metiamide: A histamine H2 receptor antagonist that is used as an anti-ulcer agent. | 5.31 | 18 | 0 | imidazoles | |
thiourea
Thiourea: A photographic fixative used also in the manufacture of resins. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), this substance may reasonably be anticipated to be a carcinogen (Merck Index, 9th ed). Many of its derivatives are ANTITHYROID AGENTS and/or FREE RADICAL SCAVENGERS.. thiourea : The simplest member of the thiourea class, consisting of urea with the oxygen atom substituted by sulfur. | 8.18 | 250 | 1 | one-carbon compound;
thioureas;
ureas | antioxidant;
chromophore |
ranitidine
Ranitidine: A non-imidazole blocker of those histamine receptors that mediate gastric secretion (H2 receptors). It is used to treat gastrointestinal ulcers.. ranitidine : A member of the class of furans used to treat peptic ulcer disease (PUD) and gastroesophageal reflux disease. | 5.07 | 43 | 0 | C-nitro compound;
furans;
organic sulfide;
tertiary amino compound | anti-ulcer drug;
drug allergen;
environmental contaminant;
H2-receptor antagonist;
xenobiotic |
burimamide
Burimamide: An antagonist of histamine that appears to block both H2 and H3 histamine receptors. It has been used in the treatment of ulcers. | 4.34 | 6 | 0 | imidazoles | |
1,2-bis(2-aminophenoxy)ethane n,n,n',n'-tetraacetic acid acetoxymethyl ester
[no description available] | 1.99 | 1 | 0 | | |
triptorelin
iodophenpropit: structure given in first source | 2.44 | 2 | 0 | organoiodine compound | |
4-(1h-imidazol-4-ylmethyl)piperidine
4-(1H-imidazol-4-ylmethyl)piperidine: structure in first source | 3.12 | 5 | 0 | piperidines | |
thioperamide
thioperamide: structure given in first source; histamine H3 receptor antagonist | 10.54 | 22 | 0 | primary aliphatic amine | |
vuf 8430
S-(2-guanidylethyl)isothiourea: a histamine H4 receptor agonist; structure in first source | 2.48 | 2 | 0 | | |
bu-e 75
BU-E 75: structure given in first source; histamine H2 agonist; RN given refers to parent cpd | 1.98 | 1 | 0 | | |
ovalbumin
Ovalbumin: An albumin obtained from the white of eggs. It is a member of the serpin superfamily. | 2.37 | 2 | 0 | | |
rhodamine 123
Rhodamine 123: A fluorescent probe with low toxicity which is a potent substrate for ATP BINDING CASSETTE TRANSPORTER, SUBFAMILY B, MEMBER 1 and the bacterial multidrug efflux transporter. It is used to assess mitochondrial bioenergetics in living cells and to measure the efflux activity of ATP BINDING CASSETTE TRANSPORTER, SUBFAMILY B, MEMBER 1 in both normal and malignant cells. (Leukemia 1997;11(7):1124-30). rhodamine 123(1+) : A cationic fluorescent dye derived from 9-phenylxanthene. | 1.99 | 1 | 0 | organic cation;
xanthene dye | fluorochrome |
jnj 7777120
1-((5-chloro-1H-indol-2-yl)carbonyl)-4-methylpiperazine: an H4 receptor antagonist; structure in first source | 2.44 | 2 | 0 | | |
dinoprostone
prostaglandin E2 : Prostaglandin F2alpha in which the hydroxy group at position 9 has been oxidised to the corresponding ketone. Prostaglandin E2 is the most common and most biologically potent of mammalian prostaglandins. | 3.58 | 9 | 0 | prostaglandins E | human metabolite;
mouse metabolite;
oxytocic |
thromboxane a2
Thromboxane A2: An unstable intermediate between the prostaglandin endoperoxides and thromboxane B2. The compound has a bicyclic oxaneoxetane structure. It is a potent inducer of platelet aggregation and causes vasoconstriction. It is the principal component of rabbit aorta contracting substance (RCS).. thromboxane A2 : A thromboxane which is produced by activated platelets and has prothrombotic properties: it stimulates activation of new platelets as well as increases platelet aggregation. | 1.99 | 1 | 0 | epoxy monocarboxylic acid;
thromboxanes A | mouse metabolite |
alprostadil
[no description available] | 3.07 | 5 | 0 | prostaglandins E | anticoagulant;
human metabolite;
platelet aggregation inhibitor;
vasodilator agent |
5-hydroxy-6,8,11,14-eicosatetraenoic acid
5(S)-HETE : A HETE having a (5S)-hydroxy group and (6E)-, (8Z)-, (11Z)- and (14Z)-double bonds.. 5-HETE : A HETE having a 5-hydroxy group and (6E)-, (8Z)-, (11Z)- and (14Z)-double bonds. | 1.96 | 1 | 0 | HETE | human metabolite;
mouse metabolite |
triprolidine
Triprolidine: Histamine H1 antagonist used in allergic rhinitis; ASTHMA; and URTICARIA. It is a component of COUGH and COLD medicines. It may cause drowsiness.. triprolidine : An N-alkylpyrrolidine that is acrivastine in which the pyridine ring is lacking the propenoic acid substituent. It is a sedating antihistamine that is used (generally as the monohydrochloride monohydrate) for the relief of the symptoms of uticaria, rhinitis, and various pruritic skin disorders. | 2.42 | 2 | 0 | N-alkylpyrrolidine;
olefinic compound;
pyridines | H1-receptor antagonist |
thromboxane b2
Thromboxane B2: A stable, physiologically active compound formed in vivo from the prostaglandin endoperoxides. It is important in the platelet-release reaction (release of ADP and serotonin).. thromboxane B2 : A member of the class of thromboxanes B that is (5Z,13E)-thromboxa-5,13-dien-1-oic acid substituted by hydroxy groups at positions 9, 11 and 15. | 1.99 | 1 | 0 | thromboxanes B | human metabolite;
mouse metabolite |
arachidonic acid 5-hydroperoxide
arachidonic acid 5-hydroperoxide: 5-HPETE is used inconsistently in literature as syn for cpds with various tetraene locants; RN given refers to (6,8,11,14)-isomer; RN in CA Vol 91 Form Index for (E,Z,Z,Z)-isomer: 70968-82-0; RN for (5,8,11,13)-isomer: 71133-12-5; in Merck, arachidonic acid is the (5,8,11,14)-isomer. 5-HPETE : A HPETE that consists of (6E,8Z,11Z,14Z)-icosatetraenoic acid in which the hydroperoxy group is located at position 5. | 2.65 | 3 | 0 | HPETE | human xenobiotic metabolite |
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. | 3.24 | 6 | 0 | morphinane alkaloid;
organic heteropentacyclic compound;
tertiary alcohol | antidote to opioid poisoning;
central nervous system depressant;
mu-opioid receptor antagonist |
2-(3-trifluoromethylphenyl)histamine
2-(3-trifluoromethylphenyl)histamine: a selective histamine H1-receptor agonist | 2.05 | 1 | 0 | | |
barium
Barium: An element of the alkaline earth group of metals. It has an atomic symbol Ba, atomic number 56, and atomic weight 138. All of its acid-soluble salts are poisonous. | 2.68 | 3 | 0 | alkaline earth metal atom;
elemental barium | |
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. | 1.96 | 1 | 0 | alkali metal atom | |
cysteine
Cysteine: A thiol-containing non-essential amino acid that is oxidized to form CYSTINE.. L-cysteinium : The L-enantiomer of cysteinium.. cysteine : A sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3. | 3.45 | 2 | 0 | cysteinium | fundamental metabolite |
3,3'-dipentyl-2,2'-oxacarbocyanine
3,3'-dipentyl-2,2'-oxacarbocyanine: RN given refers to parent cpd. 3,3'-dipentyloxacarbocyanine : The cationic form of a C3 cyanine dye having 3-pentyl-1,3-benzoxazol-2(3H)-yl units at each end. A fluorescent compound that preferentially stains chronic myelogenic leukemia cells. | 1.96 | 1 | 0 | benzoxazolium ion;
cyanine dye | fluorochrome |
l 643441
L 643441: structure given in first source | 2.37 | 2 | 0 | | |
famotidine
[no description available] | 2.02 | 1 | 0 | 1,3-thiazoles;
guanidines;
sulfonamide | anti-ulcer drug;
H2-receptor antagonist;
P450 inhibitor |
carbocyanines
Carbocyanines: Compounds that contain three methine groups. They are frequently used as cationic dyes used for differential staining of biological materials. | 1.96 | 1 | 0 | cyanine dye;
organic iodide salt | fluorochrome |
4,4'-diisothiocyanostilbene-2,2'-disulfonic acid
4,4'-Diisothiocyanostilbene-2,2'-Disulfonic Acid: An inhibitor of anion conductance including band 3-mediated anion transport. | 1.99 | 1 | 0 | | |
sk&f 93479
SK&F 93479: inhibits nocturnal acid secretion | 2.37 | 2 | 0 | | |
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. | 3.11 | 5 | 0 | azatetracycloalkane;
oxatetracycloalkane;
quinazoline alkaloid | animal metabolite;
bacterial metabolite;
marine metabolite;
neurotoxin;
voltage-gated sodium channel blocker |
selenium
Selenium: An element with the atomic symbol Se, atomic number 34, and atomic weight 78.97. It is an essential micronutrient for mammals and other animals but is toxic in large amounts. Selenium protects intracellular structures against oxidative damage. It is an essential component of GLUTATHIONE PEROXIDASE. | 1.97 | 1 | 0 | chalcogen;
nonmetal atom | micronutrient |
proxyfan
[no description available] | 2.44 | 2 | 0 | benzyl ether | |
beta-escin
[no description available] | 2.67 | 3 | 0 | | |
(2S)-1-(1H-imidazol-5-yl)-2-propanamine
[no description available] | 4.02 | 4 | 0 | aralkylamine | |
sq-23377
Ionomycin: A divalent calcium ionophore that is widely used as a tool to investigate the role of intracellular calcium in cellular processes.. ionomycin : A very long-chain fatty acid that is docosa-10,16-dienoic acid which is substituted by methyl groups at positions 4, 6, 8, 12, 14, 18 and 20, by hydroxy groups at positions 11, 19 and 21, and by a (2',5-dimethyloctahydro-2,2'-bifuran-5-yl)ethanol group at position 21. An ionophore produced by Streptomyces conglobatus, it is used in research to raise the intracellular level of Ca(2+) and as a research tool to understand Ca(2+) transport across biological membranes. | 1.99 | 1 | 0 | cyclic ether;
enol;
polyunsaturated fatty acid;
very long-chain fatty acid | calcium ionophore;
metabolite |
s 1743
Esomeprazole: The S-isomer of omeprazole.. esomeprazole : A 5-methoxy-2-{[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl}-1H-benzimidazole that has S configuration at the sulfur atom. An inhibitor of gastric acid secretion, it is used (generally as its sodium or magnesium salt) for the treatment of gastro-oesophageal reflux disease, dyspepsia, peptic ulcer disease, and Zollinger-Ellison syndrome. | 2.04 | 1 | 0 | magnesium salt | anti-ulcer drug;
EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor |
impentamine
impentamine: structure in first source | 2.44 | 2 | 0 | | |
sincalide
Sincalide: An octapeptide hormone present in the intestine and brain. When secreted from the gastric mucosa, it stimulates the release of bile from the gallbladder and digestive enzymes from the pancreas. | 2.39 | 2 | 0 | oligopeptide | |
pd 150606
PD 150606: a calpain inhibitor; structure given in first source. (Z)-3-(4-iodophenyl)-2-mercaptoacrylic acid : An organoiodine compound that is acrylic acid in which the vinylic hydrogens at positions 2 and 3 are replaced by mercapto and 4-iodophenyl groups respectively (the Z geoisomer). | 2.05 | 1 | 0 | cinnamic acids;
organoiodine compound;
thioenol | apoptosis inhibitor;
calpain inhibitor |
pentagastrin
Pentagastrin: A synthetic pentapeptide that has effects like gastrin when given parenterally. It stimulates the secretion of gastric acid, pepsin, and intrinsic factor, and has been used as a diagnostic aid. | 8.23 | 6 | 0 | organic molecular entity | |
mocetinostat
mocetinostat: undergoing phase II clinical trials for treatment of cancer. mocetinostat : A benzamide obtained by formal condensation of the carboxy group of 4-({[4-(pyridin-3-yl)pyrimidin-2-yl]amino}methyl)benzoic acid with one of the amino groups of benzene-1,2-diamine. It is an orally active and isotype-selective HDAC inhibitor which exhibits antitumour activity (IC50 = 0.15, 0.29, 1.66 and 0.59 muM for HDAC1, HDAC2, HDAC3 and HDAC11). | 2.41 | 1 | 0 | aminopyrimidine;
benzamides;
pyridines;
secondary amino compound;
secondary carboxamide;
substituted aniline | antineoplastic agent;
apoptosis inducer;
autophagy inducer;
cardioprotective agent;
EC 3.5.1.98 (histone deacetylase) inhibitor;
hepatotoxic agent |
ticagrelor
Ticagrelor: An adenosine triphosphate analogue and reversible P2Y12 PURINORECEPTOR antagonist that inhibits ADP-mediated PLATELET AGGREGATION. It is used for the prevention of THROMBOEMBOLISM by patients with ACUTE CORONARY SYNDROME or a history of MYOCARDIAL INFARCTION.. ticagrelor : A triazolopyrimidine that is an adenosine isostere; the cyclopentane ring is similar to ribose and the nitrogen-rich [1,2,3]triazolo[4,5-d]pyrimidine moiety resembles the nucleobase adenine. A platelet aggregation inhibitor which is used for prevention of thromboembolic events in patients with acute coronary syndrome. | 2.41 | 1 | 0 | aryl sulfide;
hydroxyether;
organofluorine compound;
secondary amino compound;
triazolopyrimidines | P2Y12 receptor antagonist;
platelet aggregation inhibitor |
4-(1H-imidazol-5-ylmethyl)pyridine
[no description available] | 2.44 | 2 | 0 | pyridines | |
edoxaban
edoxaban : A monocarboxylic acid amide that is used (as its tosylate monohydrate) for the treatment of deep vein thrombosis and pulmonary embolism. | 2.25 | 1 | 0 | chloropyridine;
monocarboxylic acid amide;
tertiary amino compound;
thiazolopyridine | anticoagulant;
EC 3.4.21.6 (coagulation factor Xa) inhibitor;
platelet aggregation inhibitor |
jnj 10191584
JNJ 10191584: histamine H4 receptor antagonist | 2.1 | 1 | 0 | benzimidazoles | |
histaprodifen
[no description available] | 2.02 | 1 | 0 | | |
ribose
ribopyranose : The pyranose form of ribose. | 2 | 1 | 0 | D-ribose;
ribopyranose | |
methimepip
methimepip: histamine H3 agonist | 2.44 | 2 | 0 | | |
calcimycin
Calcimycin: An ionophorous, polyether antibiotic from Streptomyces chartreusensis. It binds and transports CALCIUM and other divalent cations across membranes and uncouples oxidative phosphorylation while inhibiting ATPase of rat liver mitochondria. The substance is used mostly as a biochemical tool to study the role of divalent cations in various biological systems. | 2.36 | 2 | 0 | benzoxazole | |
scopolamine hydrobromide
[no description available] | 2.37 | 2 | 0 | | |
pituitrin
Pituitrin: A substance or extract from the neurohypophysis (PITUITARY GLAND, POSTERIOR). | 1.97 | 1 | 0 | | |
4-(1h-imidazol-4-yl)butanamine
4-(1H-imidazol-4-yl)butanamine: agonist of both H3 and H4 histamine receptors; structure in first source | 2.44 | 2 | 0 | | |
physalaemin
Physalaemin: An oligopeptide isolated from the skin of Physalaemus fuscumaculatus, a South American frog. It is a typical kinin, resembling SUBSTANCE P in structure and action and has been proposed as a sialagogue, antihypertensive, and vasodilator. | 1.96 | 1 | 0 | | |
nad
NAD(1-) : An anionic form of nicotinamide adenine dinucleotide arising from deprotonation of the two OH groups of the diphosphate moiety. | 2.01 | 1 | 0 | organophosphate oxoanion | cofactor;
human metabolite;
hydrogen acceptor;
Saccharomyces cerevisiae metabolite |
cholecystokinin
Cholecystokinin: A peptide, of about 33 amino acids, secreted by the upper INTESTINAL MUCOSA and also found in the central nervous system. It causes gallbladder contraction, release of pancreatic exocrine (or digestive) enzymes, and affects other gastrointestinal functions. Cholecystokinin may be the mediator of satiety. | 2.37 | 2 | 0 | | |
ceruletide
Ceruletide: A specific decapeptide obtained from the skin of Hila caerulea, an Australian amphibian. Caerulein is similar in action and composition to CHOLECYSTOKININ. It stimulates gastric, biliary, and pancreatic secretion; and certain smooth muscle. It is used in paralytic ileus and as diagnostic aid in pancreatic malfunction.. ceruletide : A decapeptide comprising 5-oxoprolyl, glutamyl, aspartyl, O-sulfotyrosyl, threonyl, glycyl, tryptopyl, methionyl, aspartyl and phenylalaninamide residues in sequence. Found in the skins of certain Australian amphibians, it is an analogue of the gastrointestinal peptide hormone cholecystokinin and stimulates gastric, biliary, and pancreatic secretion. It is used in cases of paralysis of the intestine (paralytic ileus) and as a diagnostic aid in pancreatic malfunction. | 2.66 | 3 | 0 | oligopeptide | diagnostic agent;
gastrointestinal drug |
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. | 2.01 | 1 | 0 | polypeptide | |
gastrins
Gastrins: A family of gastrointestinal peptide hormones that excite the secretion of GASTRIC JUICE. They may also occur in the central nervous system where they are presumed to be neurotransmitters. | 2.39 | 2 | 0 | | |
rs 39604
RS 39604 hydrochloride : A hydrochloride salt obtained by mixing equimolar amounts of RS 39604 with hydrochloric acid. A potent and selective 5-HT4 antagonist, with a pKi of 9.1 at 5-HT4 receptors in guinea pig striatal membranes and greater than 1000-fold selectivity over 5-HT1A, 2C, 3 and D1, D2, M1, M2, AT1, B1 and alpha1C receptors. The ketone group gives RS 39604 a relatively long half life; it is also orally active and so suitable for in vivo studies.. RS 39604 : An aromatic ether that is the 3,5-dimethoxybenzyl derivative of N-(2-{4-[3-(4-amino-5-chloro-2-hydroxyphenyl)-3-oxopropyl]piperidin-1-yl}ethyl)methanesulfonamide. A potent and selective 5-HT4 antagonist, with a pKi of 9.1 at 5-HT4 receptors in guinea pig striatal membranes and greater than 1000-fold selectivity over 5-HT1A, 2C, 3 and D1, D2, M1, M2, AT1, B1 and alpha1C receptors. The ketone group gives RS 39604 a relatively long half life; it is also orally active and so suitable for in vivo studies. | 2.05 | 1 | 0 | hydrochloride | serotonergic antagonist |
calpain
Calpain: Cysteine proteinase found in many tissues. Hydrolyzes a variety of endogenous proteins including NEUROPEPTIDES; CYTOSKELETAL PROTEINS; proteins from SMOOTH MUSCLE; CARDIAC MUSCLE; liver; platelets; and erythrocytes. Two subclasses having high and low calcium sensitivity are known. Removes Z-discs and M-lines from myofibrils. Activates phosphorylase kinase and cyclic nucleotide-independent protein kinase. This enzyme was formerly listed as EC 3.4.22.4. | 2.05 | 1 | 0 | | |
chitosan
[no description available] | 2.82 | 2 | 0 | | |
bucladesine
Bucladesine: A cyclic nucleotide derivative that mimics the action of endogenous CYCLIC AMP and is capable of permeating the cell membrane. It has vasodilator properties and is used as a cardiac stimulant. (From Merck Index, 11th ed). bucladesine : A 3',5'-cyclic purine nucleotide that is the 2'-butanoate ester and 6-N-butanoyl derivative of 3',5'-cyclic AMP. | 3.23 | 6 | 0 | 3',5'-cyclic purine nucleotide | |
picrotoxin
Picrotoxin: A noncompetitive antagonist at GABA-A receptors and thus a convulsant. Picrotoxin blocks the GAMMA-AMINOBUTYRIC ACID-activated chloride ionophore. Although it is most often used as a research tool, it has been used as a CNS stimulant and an antidote in poisoning by CNS depressants, especially the barbiturates.. picrotoxin : A mixture consisting of equimolar amounts of picrotoxinin and picrotin found in the climbing plant Anamirta cocculus. | 2 | 1 | 0 | | |
piperidines
Piperidines: A family of hexahydropyridines. | 4.56 | 25 | 0 | | |
interleukin-8
Interleukin-8: A member of the CXC chemokine family that plays a role in the regulation of the acute inflammatory response. It is secreted by variety of cell types and induces CHEMOTAXIS of NEUTROPHILS and other inflammatory cells. | 1.98 | 1 | 0 | | |
technetium tc 99m gluceptate
[no description available] | 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). | 1.98 | 1 | 0 | | |
omega-agatoxin iva
omega-Agatoxin IVA: A neuropeptide toxin from the venom of the funnel web spider, Agelenopsis aperta. It inhibits CALCIUM CHANNELS, P-TYPE by altering the voltage-dependent gating so that very large depolarizations are needed for channel opening. It also inhibits CALCIUM CHANNELS, Q-TYPE. | 1.99 | 1 | 0 | | |
snx 230
omega-conotoxin-MVIIC: isolated from Conus magus; amino acid sequence given in first source | 1.99 | 1 | 0 | | |
epidermal growth factor
Epidermal Growth Factor: A 6-kDa polypeptide growth factor initially discovered in mouse submaxillary glands. Human epidermal growth factor was originally isolated from urine based on its ability to inhibit gastric secretion and called urogastrone. Epidermal growth factor exerts a wide variety of biological effects including the promotion of proliferation and differentiation of mesenchymal and EPITHELIAL CELLS. It is synthesized as a transmembrane protein which can be cleaved to release a soluble active form. | 1.97 | 1 | 0 | | |
transforming growth factor beta
Transforming Growth Factor beta: A factor synthesized in a wide variety of tissues. It acts synergistically with TGF-alpha in inducing phenotypic transformation and can also act as a negative autocrine growth factor. TGF-beta has a potential role in embryonal development, cellular differentiation, hormone secretion, and immune function. TGF-beta is found mostly as homodimer forms of separate gene products TGF-beta1, TGF-beta2 or TGF-beta3. Heterodimers composed of TGF-beta1 and 2 (TGF-beta1.2) or of TGF-beta2 and 3 (TGF-beta2.3) have been isolated. The TGF-beta proteins are synthesized as precursor proteins. | 2.9 | 4 | 0 | | |
muramidase
Muramidase: A basic enzyme that is present in saliva, tears, egg white, and many animal fluids. It functions as an antibacterial agent. The enzyme catalyzes the hydrolysis of 1,4-beta-linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in peptidoglycan and between N-acetyl-D-glucosamine residues in chitodextrin. EC 3.2.1.17. | 2.37 | 2 | 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. | 2.39 | 2 | 0 | 3',5'-cyclic purine nucleotide;
guanyl ribonucleotide | Escherichia coli metabolite;
human metabolite;
mouse metabolite;
plant metabolite;
Saccharomyces cerevisiae metabolite |
guanine
[no description available] | 2.41 | 1 | 0 | 2-aminopurines;
oxopurine;
purine nucleobase | algal metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
inosinic acid
Inosine Monophosphate: Inosine 5'-Monophosphate. A purine nucleotide which has hypoxanthine as the base and one phosphate group esterified to the sugar moiety. | 1.96 | 1 | 0 | inosine phosphate;
purine ribonucleoside 5'-monophosphate | Escherichia coli metabolite;
human metabolite;
mouse metabolite |
guanosine 5'-o-(3-thiotriphosphate)
Guanosine 5'-O-(3-Thiotriphosphate): Guanosine 5'-(trihydrogen diphosphate), monoanhydride with phosphorothioic acid. A stable GTP analog which enjoys a variety of physiological actions such as stimulation of guanine nucleotide-binding proteins, phosphoinositide hydrolysis, cyclic AMP accumulation, and activation of specific proto-oncogenes. | 1.97 | 1 | 0 | nucleoside triphosphate analogue | |
clozapine
Clozapine: A tricylic dibenzodiazepine, classified as an atypical antipsychotic agent. It binds several types of central nervous system receptors, and displays a unique pharmacological profile. Clozapine is a serotonin antagonist, with strong binding to 5-HT 2A/2C receptor subtype. It also displays strong affinity to several dopaminergic receptors, but shows only weak antagonism at the dopamine D2 receptor, a receptor commonly thought to modulate neuroleptic activity. Agranulocytosis is a major adverse effect associated with administration of this agent.. clozapine : A benzodiazepine that is 5H-dibenzo[b,e][1,4]diazepine substituted by a chloro group at position 8 and a 4-methylpiperazin-1-yl group at position 11. It is a second generation antipsychotic used in the treatment of psychiatric disorders like schizophrenia. | 2.93 | 4 | 0 | benzodiazepine;
N-arylpiperazine;
N-methylpiperazine;
organochlorine compound | adrenergic antagonist;
dopaminergic antagonist;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
environmental contaminant;
GABA antagonist;
histamine antagonist;
muscarinic antagonist;
second generation antipsychotic;
serotonergic antagonist;
xenobiotic |
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. | 2.01 | 1 | 0 | 3',5'-cyclic purine nucleotide;
organobromine compound | muscle relaxant;
protein kinase G agonist |
alcian blue
Alcian Blue: A copper-containing dye used as a gelling agent for lubricants, for staining of bacteria and for the dyeing of histiocytes and fibroblasts in vivo. | 1.98 | 1 | 0 | | |
concanavalin a
Concanavalin A: A MANNOSE/GLUCOSE binding lectin isolated from the jack bean (Canavalia ensiformis). It is a potent mitogen used to stimulate cell proliferation in lymphocytes, primarily T-lymphocyte, cultures. | 2.37 | 2 | 0 | | |
pyrimidinones
Pyrimidinones: Heterocyclic compounds known as 2-pyrimidones (or 2-hydroxypyrimidines) and 4-pyrimidones (or 4-hydroxypyrimidines) with the general formula C4H4N2O. | 2.65 | 3 | 0 | | |