| 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. | 2.05 | 1 | 0 | amino acid zwitterion;
gamma-amino acid;
monocarboxylic acid | human metabolite;
neurotransmitter;
Saccharomyces cerevisiae metabolite;
signalling molecule |
3,4-dihydroxyphenylacetic acid
3,4-Dihydroxyphenylacetic Acid: A deaminated metabolite of LEVODOPA.. (3,4-dihydroxyphenyl)acetic acid : A dihydroxyphenylacetic acid having the two hydroxy substituents located at the 3- and 4-positions. It is a metabolite of dopamine.. dihydroxyphenylacetic acid : A dihydroxy monocarboxylic acid consisting of phenylacetic acid having two phenolic hydroxy substituents. | 2.07 | 1 | 0 | catechols;
dihydroxyphenylacetic acid | human metabolite |
urea
pseudourea: clinical use; structure. isourea : A carboximidic acid that is the imidic acid tautomer of urea, H2NC(=NH)OH, and its hydrocarbyl derivatives. | 4.3 | 19 | 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 |
1-(3-chlorophenyl)piperazine
1-(3-chlorophenyl)piperazine: supposed metabolite of TRAZODONE; RN given refers to parent cpd; structure. 1-(3-chlorophenyl)piperazine : A N-arylpiperazine that is piperazine carrying a 3-chlorophenyl substituent at position 1. It is a metabolite of the antidepressant drug trazodone. | 3.1 | 5 | 0 | monochlorobenzenes;
N-arylpiperazine | drug metabolite;
environmental contaminant;
serotonergic agonist;
xenobiotic |
1h-(1,2,4)oxadiazolo(4,3-a)quinoxalin-1-one
1H-(1,2,4)oxadiazolo(4,3-a)quinoxalin-1-one: structure given in first source; inhibits guanylyl cyclase. 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one : A member of the class of oxadiazoloquinoxalines that is 1H-[1,2,4]oxadiazolo[4,3-a]quinoxaline substituted at position 1 by an oxo group. | 2 | 1 | 0 | oxadiazoloquinoxaline | EC 4.6.1.2 (guanylate cyclase) inhibitor |
homovanillic acid
Homovanillic Acid: A 3-O-methyl ETHER of (3,4-dihydroxyphenyl)acetic acid.. homovanillate : A hydroxy monocarboxylic acid anion which is obtained by deprotonation of the carboxy group of homovanillic acid.. homovanillic acid : A monocarboxylic acid that is the 3-O-methyl ether of (3,4-dihydroxyphenyl)acetic acid. It is a catecholamine metabolite. | 2.07 | 1 | 0 | guaiacols;
monocarboxylic acid | human metabolite;
mouse metabolite |
chlordiazepoxide
Chlordiazepoxide: An anxiolytic benzodiazepine derivative with anticonvulsant, sedative, and amnesic properties. It has also been used in the symptomatic treatment of alcohol withdrawal.. chlordiazepoxide : A benzodiazepine that is 3H-1,4-benzodiazepine 4-oxide substituted by a chloro group at position 7, a phenyl group at position 5 and a methylamino group at position 2. | 2.39 | 2 | 0 | benzodiazepine | |
amphetamine
Amphetamine: A powerful central nervous system stimulant and sympathomimetic. Amphetamine has multiple mechanisms of action including blocking uptake of adrenergics and dopamine, stimulation of release of monamines, and inhibiting monoamine oxidase. Amphetamine is also a drug of abuse and a psychotomimetic. The l- and the d,l-forms are included here. The l-form has less central nervous system activity but stronger cardiovascular effects. The d-form is DEXTROAMPHETAMINE.. 1-phenylpropan-2-amine : A primary amine that is isopropylamine in which a hydrogen attached to one of the methyl groups has been replaced by a phenyl group.. amphetamine : A racemate comprising equimolar amounts of (R)-amphetamine (also known as levamphetamine or levoamphetamine) and (S)-amphetamine (also known as dexamfetamine or dextroamphetamine. | 1.99 | 1 | 0 | primary amine | |
diazepam
Diazepam: A benzodiazepine with anticonvulsant, anxiolytic, sedative, muscle relaxant, and amnesic properties and a long duration of action. Its actions are mediated by enhancement of GAMMA-AMINOBUTYRIC ACID activity.. diazepam : A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one substituted by a chloro group at position 7, a methyl group at position 1 and a phenyl group at position 5. | 1.98 | 1 | 0 | 1,4-benzodiazepinone;
organochlorine compound | anticonvulsant;
anxiolytic drug;
environmental contaminant;
sedative;
xenobiotic |
fluoxetine
Fluoxetine: The first highly specific serotonin uptake inhibitor. It is used as an antidepressant and often has a more acceptable side-effects profile than traditional antidepressants.. fluoxetine : A racemate comprising equimolar amounts of (R)- and (S)-fluoxetine. A selective serotonin reuptake inhibitor (SSRI), it is used (generally as the hydrochloride salt) for the treatment of depression (and the depressive phase of bipolar disorder), bullimia nervosa, and obsessive-compulsive disorder.. N-methyl-3-phenyl-3-[4-(trifluoromethyl)phenoxy]propan-1-amine : An aromatic ether consisting of 4-trifluoromethylphenol in which the hydrogen of the phenolic hydroxy group is replaced by a 3-(methylamino)-1-phenylpropyl group. | 2 | 1 | 0 | (trifluoromethyl)benzenes;
aromatic ether;
secondary amino compound | |
kynurenic acid
Kynurenic Acid: A broad-spectrum excitatory amino acid antagonist used as a research tool.. kynurenic acid : A quinolinemonocarboxylic acid that is quinoline-2-carboxylic acid substituted by a hydroxy group at C-4. | 1.99 | 1 | 0 | monohydroxyquinoline;
quinolinemonocarboxylic acid | G-protein-coupled receptor agonist;
human metabolite;
neuroprotective agent;
nicotinic antagonist;
NMDA receptor antagonist;
Saccharomyces cerevisiae metabolite |
mianserin
Mianserin: A tetracyclic compound with antidepressant effects. It may cause drowsiness and hematological problems. Its mechanism of therapeutic action is not well understood, although it apparently blocks alpha-adrenergic, histamine H1, and some types of serotonin receptors.. mianserin : A dibenzoazepine (specifically 1,2,3,4,10,14b-hexahydrodibenzo[c,f]pyrazino[1,2-a]azepine) methyl-substituted on N-2. Closely related to (and now mostly superseded by) the tetracyclic antidepressant mirtazapinean, it is an atypical antidepressant used in the treatment of depression throughout Europe and elsewhere. | 1.98 | 1 | 0 | dibenzoazepine | adrenergic uptake inhibitor;
alpha-adrenergic antagonist;
antidepressant;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
geroprotector;
H1-receptor antagonist;
histamine agonist;
sedative;
serotonergic antagonist |
oxidopamine
Oxidopamine: A neurotransmitter analogue that depletes noradrenergic stores in nerve endings and induces a reduction of dopamine levels in the brain. Its mechanism of action is related to the production of cytolytic free-radicals.. oxidopamine : A benzenetriol that is phenethylamine in which the hydrogens at positions 2, 4, and 5 on the phenyl ring are replaced by hydroxy groups. It occurs naturally in human urine, but is also produced as a metabolite of the drug DOPA (used for the treatment of Parkinson's disease). | 1.99 | 1 | 0 | benzenetriol;
catecholamine;
primary amino compound | drug metabolite;
human metabolite;
neurotoxin |
quipazine
Quipazine: A pharmacologic congener of serotonin that contracts smooth muscle and has actions similar to those of tricyclic antidepressants. It has been proposed as an oxytocic. | 1.99 | 1 | 0 | piperazines;
pyridines | |
ritanserin
Ritanserin: A selective and potent serotonin-2 antagonist that is effective in the treatment of a variety of syndromes related to anxiety and depression. The drug also improves the subjective quality of sleep and decreases portal pressure.. ritanserin : A thiazolopyrimidine that is 5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one which is substituted at position 7 by a methyl group and at position 6 by a 2-{4-[bis(4-fluorophenyl)methylidene]piperidin-1-yl}ethyl group. A potent and long-acting seratonin (5-hydroxytryptamine, 5-HT) antagonist of the subtype 5-HT2 (Ki = 0.39 nM), it is used in the treatment of a variety of disorders including anxiety, depression and schizophrenia. It has little sedative action. | 2.13 | 1 | 0 | organofluorine compound;
piperidines;
thiazolopyrimidine | antidepressant;
antipsychotic agent;
anxiolytic drug;
dopaminergic antagonist;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
serotonergic antagonist |
sb 206553
SB 206553: a high-affinity 5-HT(2C/2B) antagonist; structure given in first source | 2.68 | 3 | 0 | pyrroloindole | |
corticosterone
[no description available] | 1.99 | 1 | 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 |
carbachol
Carbachol: A slowly hydrolyzed CHOLINERGIC AGONIST that acts at both MUSCARINIC RECEPTORS and NICOTINIC RECEPTORS. | 1.98 | 1 | 0 | ammonium salt;
carbamate ester | cardiotonic drug;
miotic;
muscarinic agonist;
nicotinic acetylcholine receptor agonist;
non-narcotic analgesic |
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. | 2.04 | 1 | 0 | aporphine alkaloid | alpha-adrenergic drug;
antidyskinesia agent;
antiparkinson drug;
dopamine agonist;
emetic;
serotonergic drug |
quinoxalines
quinoxaline : A naphthyridine in which the nitrogens are at positions 1 and 4. | 2 | 1 | 0 | mancude organic heterobicyclic parent;
naphthyridine;
ortho-fused heteroarene | |
thiophenes
Thiophenes: A monocyclic heteroarene furan in which the oxygen atom is replaced by a sulfur.. thiophenes : Compounds containing at least one thiophene ring. | 2.68 | 3 | 0 | mancude organic heteromonocyclic parent;
monocyclic heteroarene;
thiophenes;
volatile organic compound | non-polar solvent |
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. | 2.9 | 4 | 0 | methyl 17-hydroxy-20xi-yohimban-16-carboxylate | alpha-adrenergic antagonist;
dopamine receptor D2 antagonist;
serotonergic antagonist |
indazoles
Indazoles: A group of heterocyclic aromatic organic compounds consisting of the fusion of BENZENE and PYRAZOLES. | 2.04 | 1 | 0 | indazole | |
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. | 1.99 | 1 | 0 | diazine;
pyrazines | Daphnia magna metabolite |
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. | 1.98 | 1 | 0 | ergoline alkaloid | |
fluorobenzenes
Fluorobenzenes: Derivatives of BENZENE that contain FLUORINE.. monofluorobenzene : The simplest member of the class of monofluorobenzenes that is benzene carrying a single fluoro substituent.. fluorobenzenes : Any fluoroarene that is a benzene or a substituted benzene carrying at least one fluoro group. | 2.69 | 3 | 0 | monofluorobenzenes | NMR chemical shift reference compound |
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. | 2.04 | 1 | 0 | | |
n-methylaspartate
N-Methylaspartate: An amino acid that, as the D-isomer, is the defining agonist for the NMDA receptor subtype of glutamate receptors (RECEPTORS, NMDA).. N-methyl-D-aspartic acid : An aspartic acid derivative having an N-methyl substituent and D-configuration. | 1.99 | 1 | 0 | amino dicarboxylic acid;
D-alpha-amino acid;
D-aspartic acid derivative;
secondary amino compound | neurotransmitter agent |
ng-nitroarginine methyl ester
NG-Nitroarginine Methyl Ester: A non-selective inhibitor of nitric oxide synthase. It has been used experimentally to induce hypertension. | 2 | 1 | 0 | alpha-amino acid ester;
L-arginine derivative;
methyl ester;
N-nitro compound | EC 1.14.13.39 (nitric oxide synthase) inhibitor |
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. | 1.99 | 1 | 0 | pyrazoloquinoline | dopamine agonist |
melanotan-ii
melanotan-II: synthetic cyclic heptapeptide, an analog of alpha-melanotropin (4,10); capable of stimulating melanin synthesis & promoting rapid tanning of skin; currently in trials for use in the prevention of sunlight-induced skin cancer | 2.04 | 1 | 0 | organic molecular entity | |
tryptoline
tryptoline: neurotoxic factor that may be involved in development of Parkinson's disease; enzymatic prep from human brain converts tryptamine to tryptoline; RN given refers to parent cpd; structure | 1.99 | 1 | 0 | beta-carbolines | |
6-chloro-2-(1-piperazinyl)pyrazine
[no description available] | 1.99 | 1 | 0 | N-arylpiperazine | |
yohimbane
yohimbane: from Gelsemium elegans; structure in first source | 1.99 | 1 | 0 | indole alkaloid fundamental parent;
indole alkaloid;
yohimban alkaloid | |
sr 46349b
SR 46349B: potent & selective 5-hydroxytryptamine receptor antagonist; structure given in first source | 1.99 | 1 | 0 | | |
oxytocin
Oxytocin: A nonapeptide hormone released from the neurohypophysis (PITUITARY GLAND, POSTERIOR). It differs from VASOPRESSIN by two amino acids at residues 3 and 8. Oxytocin acts on SMOOTH MUSCLE CELLS, such as causing UTERINE CONTRACTIONS and MILK EJECTION.. oxytocin : A cyclic nonapeptide hormone with amino acid sequence CYIQNCPLG that also acts as a neurotransmitter in the brain; the principal uterine-contracting and milk-ejecting hormone of the posterior pituitary. Together with the neuropeptide vasopressin, it is believed to influence social cognition and behaviour. | 2.04 | 1 | 0 | heterodetic cyclic peptide;
peptide hormone | oxytocic;
vasodilator agent |
inositol 1,4,5-trisphosphate
Inositol 1,4,5-Trisphosphate: Intracellular messenger formed by the action of phospholipase C on phosphatidylinositol 4,5-bisphosphate, which is one of the phospholipids that make up the cell membrane. Inositol 1,4,5-trisphosphate is released into the cytoplasm where it releases calcium ions from internal stores within the cell's endoplasmic reticulum. These calcium ions stimulate the activity of B kinase or calmodulin. | 1.99 | 1 | 0 | myo-inositol trisphosphate | mouse metabolite |
sb 221284
SB 221284: 5-HT(2C/2B) receptor antagonist; structure in first source | 2 | 1 | 0 | indolyl carboxylic acid | |
ym348
YM348: 5-HT2C receptor agonist & an antiobesity drug | 2.04 | 1 | 0 | | |
n-(1-methyl-5-indolyl)-n'-(3-methyl-5-isothiazolyl)urea
N-(1-methyl-5-indolyl)-N'-(3-methyl-5-isothiazolyl)urea: a 5-HT(2B) receptor antagonist; structure given in first source. 1-(1-methylindol-5-yl)-3-(3-methyl-1,2-thiazol-5-yl)urea : A member of ther class of ureas that is urea in which a hydrogen attached to one of the nitrogens has been replaced by an N-methylindol-5-yl group, while a hydrogen attached to the other nitrogen has been replaced by a 3-methyl-1,2-thiazol-5-yl group. It is a potent and selective antagonist for the 5-hydroxytryptamine 2B (5-HT2B) receptor. | 1.99 | 1 | 0 | 1,2-thiazoles;
indoles;
ureas | receptor modulator;
serotonergic antagonist |
sb 242084
6-chloro-5-methyl-1-((2-(2-methylpyrid-3-yloxy)pyrid-5-yl)carbamoyl)indoline: 5-HT(2C) receptor inverse agonist (antagonist); structure in first source | 2.04 | 1 | 0 | | |
ro 60-0175
Ro 60-0175: a 5HT 2C receptor agonist. 1-(6-chloro-5-fluoroindol-1-yl)-propan-2-amine : A member of the class of indoles that is 6-chloro-5-fluoroindole in which the hydrogen attached to the nitrogen has been replaced by a 2-aminopropyl group. | 2.42 | 2 | 0 | indoles;
organochlorine compound;
organofluorine compound;
primary amino compound | |
granisetron
Granisetron: A serotonin receptor (5HT-3 selective) antagonist that has been used as an antiemetic for cancer chemotherapy patients.. granisetron : A monocarboxylic acid amide resulting from the formal condensation of the carboxy group of 1-methyl-1H-indazole-3-carboxylic acid with the primary amino group of (3-endo)-9-methyl-9-azabicyclo[3.3.1]nonan-3-amine. A selective 5-HT3 receptor antagonist, it is used (generally as the monohydrochloride salt) to manage nausea and vomiting caused by cancer chemotherapy and radiotherapy, and to prevent and treat postoperative nausea and vomiting. | 2 | 1 | 0 | aromatic amide;
indazoles | |
bw 723c86
1-(5-(2-thenyloxy)-1H-indol-3-yl)propan-2-amine: a 5-HT(2B) agonist | 2.68 | 3 | 0 | | |
mdl 100907
Serotonin 5-HT2 Receptor Antagonists: Drugs that bind to but do not activate SEROTONIN 5-HT2 RECEPTORS, thereby blocking the actions of SEROTONIN or SEROTONIN 5-HT2 RECEPTOR AGONISTS. Included under this heading are antagonists for one or more specific 5-HT2 receptor subtypes. | 3.11 | 5 | 0 | | |
15-hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic acid
15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid: A stable prostaglandin endoperoxide analog which serves as a thromboxane mimetic. Its actions include mimicking the hydro-osmotic effect of VASOPRESSIN and activation of TYPE C PHOSPHOLIPASES. (From J Pharmacol Exp Ther 1983;224(1): 108-117; Biochem J 1984;222(1):103-110) | 2 | 1 | 0 | | |
sm 346
SM 346: 2-mercaptobenzimidazole derivative | 2.47 | 2 | 0 | | |
oxadiazoles
Oxadiazoles: Compounds containing five-membered heteroaromatic rings containing two carbons, two nitrogens, and one oxygen atom which exist in various regioisomeric forms. | 2 | 1 | 0 | | |
desbromoarborescidine a
desbromoarborescidine A: structure in first source | 1.99 | 1 | 0 | | |
piperidines
Piperidines: A family of hexahydropyridines. | 2.69 | 3 | 0 | | |
cyclic gmp
Cyclic GMP: Guanosine cyclic 3',5'-(hydrogen phosphate). A guanine nucleotide containing one phosphate group which is esterified to the sugar moiety in both the 3'- and 5'-positions. It is a cellular regulatory agent and has been described as a second messenger. Its levels increase in response to a variety of hormones, including acetylcholine, insulin, and oxytocin and it has been found to activate specific protein kinases. (From Merck Index, 11th ed). 3',5'-cyclic GMP : A 3',5'-cyclic purine nucleotide in which the purine nucleobase is specified as guanidine. | 2.4 | 2 | 0 | 3',5'-cyclic purine nucleotide;
guanyl ribonucleotide | Escherichia coli metabolite;
human metabolite;
mouse metabolite;
plant metabolite;
Saccharomyces cerevisiae metabolite |
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. | 2.13 | 1 | 0 | benzodiazepine;
N-arylpiperazine;
N-methylpiperazine;
organochlorine compound | adrenergic antagonist;
dopaminergic antagonist;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
environmental contaminant;
GABA antagonist;
histamine antagonist;
muscarinic antagonist;
second generation antipsychotic;
serotonergic antagonist;
xenobiotic |