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. | 2.03 | 1 | 0 | amino acid zwitterion; gamma-amino acid; monocarboxylic acid | human metabolite; neurotransmitter; Saccharomyces cerevisiae metabolite; signalling molecule |
alfuzosin alfuzosin: structure given in first source | 3.09 | 1 | 0 | monocarboxylic acid amide; quinazolines; tetrahydrofuranol | alpha-adrenergic antagonist; antihypertensive agent; antineoplastic agent |
aminoglutethimide Aminoglutethimide: An aromatase inhibitor that is used in the treatment of advanced BREAST CANCER.. aminoglutethimide : A dicarboximide that is a six-membered cyclic compound having ethyl and 4-aminophenyl substituents at the 3-position. | 1.96 | 1 | 0 | dicarboximide; piperidones; substituted aniline | adrenergic agent; anticonvulsant; antineoplastic agent; EC 1.14.14.14 (aromatase) inhibitor |
doxazosin Doxazosin: A prazosin-related compound that is a selective alpha-1-adrenergic blocker.. doxazosin : A member of the class of quinazolines that is quinazoline substituted by an amino group at position 4, methoxy groups at positions 6 and 7 and a piperazin-1-yl group at position 2 which in turn is substituted by a 2,3-dihydro-1,4-benzodioxin-2-ylcarbonyl group at position 4. An antihypertensive agent, it is used in the treatment of high blood pressure. | 3.09 | 1 | 0 | aromatic amine; benzodioxine; monocarboxylic acid amide; N-acylpiperazine; N-arylpiperazine; quinazolines | alpha-adrenergic antagonist; antihyperplasia drug; antihypertensive agent; antineoplastic agent; vasodilator agent |
flutamide Flutamide: An antiandrogen with about the same potency as cyproterone in rodent and canine species. | 3.22 | 6 | 0 | (trifluoromethyl)benzenes; monocarboxylic acid amide | androgen antagonist; antineoplastic agent |
letrozole [no description available] | 1.98 | 1 | 0 | nitrile; triazoles | antineoplastic agent; EC 1.14.14.14 (aromatase) inhibitor |
prazosin Prazosin: A selective adrenergic alpha-1 antagonist used in the treatment of HEART FAILURE; HYPERTENSION; PHEOCHROMOCYTOMA; RAYNAUD DISEASE; PROSTATIC HYPERTROPHY; and URINARY RETENTION.. prazosin : A member of the class of piperazines that is piperazine substituted by a furan-2-ylcarbonyl group and a 4-amino-6,7-dimethoxyquinazolin-2-yl group at positions 1 and 4 respectively. | 3.09 | 1 | 0 | aromatic ether; furans; monocarboxylic acid amide; piperazines; quinazolines | alpha-adrenergic antagonist; antihypertensive agent; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor |
terazosin Terazosin: induces decreased blood pressure; used in the treatment of benign prostatic hyperplasia | 3.09 | 1 | 0 | furans; piperazines; primary amino compound; quinazolines | alpha-adrenergic antagonist; antihypertensive agent; antineoplastic agent |
5-methylurapidil [no description available] | 3.09 | 1 | 0 | | |
wb 4101 N-(2,3-dihydro-1,4-benzodioxin-2-ylmethyl)-2-(2,6-dimethoxyphenoxy)ethanamine : A benzodioxine that is 2,3-dihydro-1,4-benzodioxine bearing a [(2',6'-dimethoxyphenoxy)ethylamino]methyl group at position 2. An alpha1A-adrenergic selective antagonist. | 3.09 | 1 | 0 | aromatic ether; benzodioxine; secondary amino compound | alpha-adrenergic antagonist |
spironolactone Spironolactone: A potassium sparing diuretic that acts by antagonism of aldosterone in the distal renal tubules. It is used mainly in the treatment of refractory edema in patients with congestive heart failure, nephrotic syndrome, or hepatic cirrhosis. Its effects on the endocrine system are utilized in the treatments of hirsutism and acne but they can lead to adverse effects. (From Martindale, The Extra Pharmacopoeia, 30th ed, p827). spironolactone : A steroid lactone that is 17alpha-pregn-4-ene-21,17-carbolactone substituted by an oxo group at position 3 and an alpha-acetylsulfanyl group at position 7. | 1.98 | 1 | 0 | 3-oxo-Delta(4) steroid; oxaspiro compound; steroid lactone; thioester | aldosterone antagonist; antihypertensive agent; diuretic; environmental contaminant; xenobiotic |
estrone Hydroxyestrones: Estrone derivatives substituted with one or more hydroxyl groups in any position. They are important metabolites of estrone and other estrogens. | 1.96 | 1 | 0 | 17-oxo steroid; 3-hydroxy steroid; phenolic steroid; phenols | antineoplastic agent; bone density conservation agent; estrogen; human metabolite; mouse metabolite |
etiocholanolone Etiocholanolone: The 5-beta-reduced isomer of ANDROSTERONE. Etiocholanolone is a major metabolite of TESTOSTERONE and ANDROSTENEDIONE in many mammalian species including humans. It is excreted in the URINE.. 3alpha-hydroxy-5beta-androstan-17-one : An androstanoid that is 5beta-androstane substituted by an alpha-hydroxy group at position 3 and an oxo group at position 17. It is a metabolite of testosterone in mammals. | 1.98 | 1 | 0 | 17-oxo steroid; 3alpha-hydroxy steroid; androstanoid | human metabolite; mouse metabolite |
dehydroepiandrosterone Dehydroepiandrosterone: A major C19 steroid produced by the ADRENAL CORTEX. It is also produced in small quantities in the TESTIS and the OVARY. Dehydroepiandrosterone (DHEA) can be converted to TESTOSTERONE; ANDROSTENEDIONE; ESTRADIOL; and ESTRONE. Most of DHEA is sulfated (DEHYDROEPIANDROSTERONE SULFATE) before secretion.. dehydroepiandrosterone : An androstanoid that is androst-5-ene substituted by a beta-hydroxy group at position 3 and an oxo group at position 17. It is a naturally occurring steroid hormone produced by the adrenal glands. | 2.67 | 3 | 0 | 17-oxo steroid; 3beta-hydroxy-Delta(5)-steroid; androstanoid | androgen; human metabolite; mouse metabolite |
carbostyril Quinolones: A group of derivatives of naphthyridine carboxylic acid, quinoline carboxylic acid, or NALIDIXIC ACID.. quinolin-2(1H)-one : A quinolone that is 1,2-dihydroquinoline substituted by an oxo group at position 2. | 3.5 | 2 | 0 | monohydroxyquinoline; quinolone | bacterial xenobiotic metabolite |
androstenedione Androstenedione: A delta-4 C19 steroid that is produced not only in the TESTIS, but also in the OVARY and the ADRENAL CORTEX. Depending on the tissue type, androstenedione can serve as a precursor to TESTOSTERONE as well as ESTRONE and ESTRADIOL.. androst-4-ene-3,17-dione : A 3-oxo Delta(4)-steroid that is androst-4-ene substituted by oxo groups at positions 3 and 17. It is a steroid hormone synthesized in the adrenal glands and gonads. | 3.84 | 12 | 0 | 17-oxo steroid; 3-oxo-Delta(4) steroid; androstanoid | androgen; Daphnia magna metabolite; human metabolite; mouse metabolite |
aminacrine Aminacrine: A highly fluorescent anti-infective dye used clinically as a topical antiseptic and experimentally as a mutagen, due to its interaction with DNA. It is also used as an intracellular pH indicator.. 9-aminoacridine : An aminoacridine that is acridine in which the hydrogen at position 9 is replaced by an amino group. A fluorescent dyd and topical antiseptic agent, it is used (usually as the hydrochloride salt) in eye drops for the treatment of superficial eye infections. | 2.03 | 1 | 0 | aminoacridines; primary amino compound | acid-base indicator; antiinfective agent; antiseptic drug; fluorescent dye; MALDI matrix material; mutagen |
pregnenolone [no description available] | 1.99 | 1 | 0 | 20-oxo steroid; 3beta-hydroxy-Delta(5)-steroid; C21-steroid | human metabolite; mouse metabolite |
20-alpha-dihydroprogesterone 20-alpha-Dihydroprogesterone: A biologically active 20-alpha-reduced metabolite of PROGESTERONE. It is converted from progesterone to 20-alpha-hydroxypregn-4-en-3-one by the 20-ALPHA-HYDROXYSTEROID DEHYDROGENASE in the CORPUS LUTEUM and the PLACENTA. | 1.96 | 1 | 0 | 20-hydroxypregn-4-en-3-one | human metabolite; mouse metabolite |
acridines Acridines: Compounds that include the structure of acridine.. acridine : A polycyclic heteroarene that is anthracene in which one of the central CH groups is replaced by a nitrogen atom. | 2.03 | 1 | 0 | acridines; mancude organic heterotricyclic parent; polycyclic heteroarene | genotoxin |
cyproterone acetate [no description available] | 1.99 | 1 | 0 | 20-oxo steroid; 3-oxo-Delta(4) steroid; acetate ester; chlorinated steroid; steroid ester | androgen antagonist; geroprotector; progestin |
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. | 2.03 | 1 | 0 | benzylisoquinoline alkaloid; isoquinoline alkaloid; isoquinolines | agrochemical; central nervous system stimulant; GABA-gated chloride channel antagonist; GABAA receptor antagonist; neurotoxin |
dihydrotestosterone Dihydrotestosterone: A potent androgenic metabolite of TESTOSTERONE. It is produced by the action of the enzyme 3-OXO-5-ALPHA-STEROID 4-DEHYDROGENASE.. 17beta-hydroxyandrostan-3-one : A 17beta-hydroxy steroid that is testosterone in which the 4-5 double bond has been reduced to a single bond with unspecified configuration at position 5.. 17beta-hydroxy-5alpha-androstan-3-one : A 17beta-hydroxy steroid that is testosterone in which the 4,5 double bond has been reduced to a single bond with alpha-configuration at position 5. | 6.66 | 71 | 0 | 17beta-hydroxy steroid; 17beta-hydroxyandrostan-3-one; 3-oxo-5alpha-steroid | androgen; Daphnia magna metabolite; human metabolite; mouse metabolite |
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. | 2.11 | 1 | 0 | amphetamines; secondary amine | central nervous system stimulant; environmental contaminant; neurotoxin; psychotropic drug; xenobiotic |
formestane [no description available] | 2.89 | 4 | 0 | 17-oxo steroid; 3-oxo-Delta(4) steroid; enol; hydroxy steroid | antineoplastic agent; EC 1.14.14.14 (aromatase) inhibitor |
dihydrotestosterone propionate dihydrotestosterone propionate: RN given refers to (5alpha,17beta)-isomer; structure | 1.96 | 1 | 0 | | |
cyanoketone Cyanoketone: 2 alpha-Cyano-17 beta-hydroxy-4,4',17 alpha-trimethylandrost-5-ene-3-one. An androstenolone-nitrile compound with steroidogenesis-blocking activity. | 1.97 | 1 | 0 | | |
fluorine Fluorine: A nonmetallic, diatomic gas that is a trace element and member of the halogen family. It is used in dentistry as fluoride (FLUORIDES) to prevent dental caries. | 2.03 | 1 | 0 | diatomic fluorine; gas molecular entity | NMR chemical shift reference compound |
tiletamine hydrochloride Cyclohexanones: Cyclohexane ring substituted by one or more ketones in any position.. cyclohexanones : Any alicyclic ketone based on a cyclohexane skeleton and its substituted derivatives thereof. | 2.1 | 1 | 0 | | |
danazol Danazol: A synthetic steroid with antigonadotropic and anti-estrogenic activities that acts as an anterior pituitary suppressant by inhibiting the pituitary output of gonadotropins. It possesses some androgenic properties. Danazol has been used in the treatment of endometriosis and some benign breast disorders. | 1.96 | 1 | 0 | 17beta-hydroxy steroid; terminal acetylenic compound | anti-estrogen; estrogen antagonist; geroprotector |
pregnanolone Pregnanolone: A pregnane found in the urine of pregnant women and sows. It has anesthetic, hypnotic, and sedative properties.. 3alpha-hydroxy-5beta-pregnan-20-one : The 3alpha-stereoisomer of 3-hydroxy-5beta-pregnan-20-one. | 2.41 | 2 | 0 | 3-hydroxy-5beta-pregnan-20-one; 3alpha-hydroxy steroid | human metabolite; intravenous anaesthetic; sedative |
androstane-3,17-diol Androstane-3,17-diol: The unspecified form of the steroid, normally a major metabolite of TESTOSTERONE with androgenic activity. It has been implicated as a regulator of gonadotropin secretion. | 2.88 | 4 | 0 | 17-hydroxy steroid; 3-hydroxy steroid; androstanoid | |
indoramin Indoramin: An alpha-1 adrenergic antagonist that is commonly used as an antihypertensive agent. | 3.09 | 1 | 0 | tryptamines | |
raloxifene hydrochloride Raloxifene Hydrochloride: A second generation selective estrogen receptor modulator (SERM) used to prevent osteoporosis in postmenopausal women. It has estrogen agonist effects on bone and cholesterol metabolism but behaves as a complete estrogen antagonist on mammary gland and uterine tissue.. raloxifene hydrochloride : A hydrochloride salt resulting from the reaction of equimolar amounts of raloxifene and hydrogen chloride. | 1.97 | 1 | 0 | hydrochloride | bone density conservation agent; estrogen antagonist; estrogen receptor modulator |
mifepristone Mifepristone: A progestational and glucocorticoid hormone antagonist. Its inhibition of progesterone induces bleeding during the luteal phase and in early pregnancy by releasing endogenous prostaglandins from the endometrium or decidua. As a glucocorticoid receptor antagonist, the drug has been used to treat hypercortisolism in patients with nonpituitary CUSHING SYNDROME. | 2.39 | 2 | 0 | 3-oxo-Delta(4) steroid; acetylenic compound; tertiary amino compound | abortifacient; contraceptive drug; hormone antagonist; synthetic oral contraceptive |
finasteride Finasteride: An orally active 3-OXO-5-ALPHA-STEROID 4-DEHYDROGENASE inhibitor. It is used as a surgical alternative for treatment of benign PROSTATIC HYPERPLASIA.. finasteride : An aza-steroid that is a synthetic drug for the treatment of benign prostatic hyperplasia. | 5.39 | 11 | 0 | 3-oxo steroid; aza-steroid; delta-lactam | androgen antagonist; antihyperplasia drug; EC 1.3.1.22 [3-oxo-5alpha-steroid 4-dehydrogenase (NADP(+))] inhibitor |
fadrozole Fadrozole: A selective aromatase inhibitor effective in the treatment of estrogen-dependent disease including breast cancer. | 1.98 | 1 | 0 | imidazopyridine | |
turosteride turosteride: a 5alpha-reductase inhibitor; structure given in first source; RN given refers to the (5alpha,17beta)-isomer | 3.78 | 3 | 0 | | |
triazoles Triazoles: Heterocyclic compounds containing a five-membered ring with two carbon atoms and three nitrogen atoms with the molecular formula C2H3N3.. triazoles : An azole in which the five-membered heterocyclic aromatic skeleton contains three N atoms and two C atoms. | 1.98 | 1 | 0 | 1,2,3-triazole | |
epristeride epristeride: structure given in first source | 3.49 | 2 | 0 | steroid acid | |
hydroxyflutamide [no description available] | 1.98 | 1 | 0 | | |
11-hydroxyprogesterone, (11alpha)-isomer 11alpha-hydroxyprogesterone : A 11alpha-hydroxy steroid that is pregn-4-ene-3,20-dione substituted by a hydroxy group at position 11. | 1.96 | 1 | 0 | 11alpha-hydroxy steroid; 20-oxo steroid; 3-oxo-Delta(4) steroid | |
etienic acid etienic acid: InChIKey: YQACAXHKQZCEOI-UDCWSGSHSA-N | 1.96 | 1 | 0 | | |
androsta-1,4,6-triene-3,17-dione androsta-1,4,6-triene-3,17-dione: blocks aromatization of testosterone to estradiol; aromatase antagonist. androsta-1,4,6-triene-3,17-dione : An androstanoid that is androsta-1,4,6-triene substituted by oxo groups at positions 3 and 17. | 1.96 | 1 | 0 | 17-oxo steroid; 3-oxo-Delta(1),Delta(4)-steroid; androstanoid | EC 1.14.14.14 (aromatase) inhibitor; human xenobiotic metabolite |
cobaltiprotoporphyrin cobaltiprotoporphyrin: RN given refers to cobalt protoporphyrin IX | 1.97 | 1 | 0 | | |
6-methylene-4-pregnene-3,20-dione 6-methylene-4-pregnene-3,20-dione: inhibits prostatic growth | 2.38 | 2 | 0 | | |
sk&f 104856 SK&F 104856: structure given in first source | 3.09 | 1 | 0 | | |
8-chloro-4-methyl-1,2,3,4,4a,5,6,10b-octahydrobenzo(f)quinolin-3(2h)-one 8-chloro-4-methyl-1,2,3,4,4a,5,6,10b-octahydrobenzo(f)quinolin-3(2H)-one: selective, non-steroidal inhibitor of human steroid 5 alpha-reductase type 1; structure given in first source | 2.01 | 1 | 0 | | |
tamsulosin [no description available] | 3.09 | 1 | 0 | 5-(2-{[2-(2-ethoxyphenoxy)ethyl]amino}propyl)-2-methoxybenzenesulfonamide | alpha-adrenergic antagonist; antineoplastic agent |
cyclazosin cyclazosin: an alpha(1D)-adrenoceptor antagonist; structure given in first source; RN given for (cis)-isomer. cyclazosin : A monocarboxylic acid amide obtained by formal condensation of the carboxy group of furoic acid with the secondary amino group of 6,7-dimethoxy-2-[(4aR,8aS)-octahydroquinoxalin-1-yl]quinazolin-4-amine. | 3.09 | 1 | 0 | aromatic amide; aromatic ether; furans; monocarboxylic acid amide; quinazolines; quinoxaline derivative | adenosine A2A receptor antagonist |
4-methyl-4-aza-3-oxopregnane-20-carboxylate [no description available] | 2.66 | 3 | 0 | | |
rec 15-2739 Rec 15-2739: an alpha-1 antagonist selective for the lower urinary tract; structure given in first source | 3.09 | 1 | 0 | | |
5-androstene-3,17-dione androst-5-ene-3,17-dione : An androstanoid that is androst-5-ene bearing two oxo substituents at positions 3 and 17. | 1.97 | 1 | 0 | 17-oxo steroid; 3-oxo-Delta(5)-steroid; androstanoid | |
ly 300502 [no description available] | 3.09 | 1 | 0 | | |
bmy 7378 [no description available] | 3.09 | 1 | 0 | | |
androstane-3,17-dione, (5alpha)-isomer androstane-3,17-dione: RN given refers to cpd without isomeric designation. androstane-3,17-dione : An androstanoid that is androstane substituted by oxo groups at positions 3 and 17.. 5alpha-androstane-3,17-dione : The 5alpha-stereoisomer of androstane-3,17-dione. | 2.38 | 2 | 0 | 3-oxo-5alpha-steroid; androstane-3,17-dione | mouse metabolite |
cocaine Cocaine: An alkaloid ester extracted from the leaves of plants including coca. It is a local anesthetic and vasoconstrictor and is clinically used for that purpose, particularly in the eye, ear, nose, and throat. It also has powerful central nervous system effects similar to the amphetamines and is a drug of abuse. Cocaine, like amphetamines, acts by multiple mechanisms on brain catecholaminergic neurons; the mechanism of its reinforcing effects is thought to involve inhibition of dopamine uptake.. cocaine : A tropane alkaloid obtained from leaves of the South American shrub Erythroxylon coca. | 2.11 | 1 | 0 | benzoate ester; methyl ester; tertiary amino compound; tropane alkaloid | adrenergic uptake inhibitor; central nervous system stimulant; dopamine uptake inhibitor; environmental contaminant; local anaesthetic; mouse metabolite; plant metabolite; serotonin uptake inhibitor; sodium channel blocker; sympathomimetic agent; vasoconstrictor agent; xenobiotic |
trilostane trilostane: inhibits conversion of pregnenolone to progesterone; adrenal blocking agent used in treatment of Cushing's syndrome. trilostane : An epoxy steroid that is 3,17beta-dihydroxy-5alpha-androst-2-ene-2-carbonitrile in which the oxygen of the epoxy group is joined to the 4alpha and 5 alpha positions. | 2.38 | 2 | 0 | 17beta-hydroxy steroid; 3-hydroxy steroid; androstanoid; epoxy steroid; nitrile | abortifacient; antineoplastic agent; EC 1.1.1.210 [3beta(or 20alpha)-hydroxysteroid dehydrogenase] inhibitor |
tamoxifen [no description available] | 1.96 | 1 | 0 | stilbenoid; tertiary amino compound | angiogenesis inhibitor; antineoplastic agent; bone density conservation agent; EC 1.2.3.1 (aldehyde oxidase) inhibitor; EC 2.7.11.13 (protein kinase C) inhibitor; estrogen antagonist; estrogen receptor antagonist; estrogen receptor modulator |
nadp [no description available] | 4.33 | 6 | 0 | | |
nitromifene Nitromifene: A non-steroidal estrogen antagonist (as the 1:1 citrate) most commonly used as a research tool in animal studies. | 1.97 | 1 | 0 | | |
androstane-3,17-diol glucuronide androstane-3,17-diol glucuronide: RN given refers to cpd with unspecified glucuronide locant | 1.97 | 1 | 0 | steroid ester | |
rs 17053 [no description available] | 3.09 | 1 | 0 | indoles | |
silodosin silodosin: an alpha(1a)-adrenoceptor-selective antagonist; structure given in first source | 3.09 | 1 | 0 | indolecarboxamide | |
epostane [no description available] | 1.99 | 1 | 0 | | |
dexniguldipine niguldipine: structure given in first source; clinical modulator of multidrug resistance | 3.09 | 1 | 0 | diarylmethane | |
ro 70-0004 [no description available] | 3.09 | 1 | 0 | | |
nad NAD(1-) : An anionic form of nicotinamide adenine dinucleotide arising from deprotonation of the two OH groups of the diphosphate moiety. | 1.96 | 1 | 0 | organophosphate oxoanion | cofactor; human metabolite; hydrogen acceptor; Saccharomyces cerevisiae metabolite |
picrotoxin Picrotoxin: A noncompetitive antagonist at GABA-A receptors and thus a convulsant. Picrotoxin blocks the GAMMA-AMINOBUTYRIC ACID-activated chloride ionophore. Although it is most often used as a research tool, it has been used as a CNS stimulant and an antidote in poisoning by CNS depressants, especially the barbiturates.. picrotoxin : A mixture consisting of equimolar amounts of picrotoxinin and picrotin found in the climbing plant Anamirta cocculus. | 1.98 | 1 | 0 | | |
piperidines Piperidines: A family of hexahydropyridines. | 1.97 | 1 | 0 | | |
2-(3-methoxyphenyl)-2-(ethylamino)cyclohexanone [no description available] | 2.1 | 1 | 0 | | |