Substance | Relationship Strength | Studies | Trials | Classes | Roles |
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. | 2.01 | 1 | 0 | chlorine molecular entity; gas molecular entity; hydrogen halide; mononuclear parent hydride | mouse metabolite |
histamine [no description available] | 8.26 | 6 | 0 | aralkylamino compound; imidazoles | human metabolite; mouse metabolite; neurotransmitter |
n-methylhistamine [no description available] | 2.71 | 3 | 0 | aralkylamine | |
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 | |
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 |
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class of benzoic acids that is salicylic acid in which the hydrogen that is attached to the phenolic hydroxy group has been replaced by an acetoxy group.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. | 2.02 | 1 | 0 | benzoic acids; phenyl acetates; salicylates | anticoagulant; antipyretic; cyclooxygenase 1 inhibitor; cyclooxygenase 2 inhibitor; drug allergen; EC 1.1.1.188 (prostaglandin-F synthase) inhibitor; geroprotector; non-narcotic analgesic; non-steroidal anti-inflammatory drug; plant activator; platelet aggregation inhibitor; prostaglandin antagonist; teratogenic agent |
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. | 2.02 | 1 | 0 | ether; monocarboxylic acid; monochlorobenzenes; piperazines | anti-allergic agent; environmental contaminant; H1-receptor antagonist; xenobiotic |
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. | 2.02 | 1 | 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. | 2.93 | 4 | 0 | imidazoles; imidothiocarbamic ester; organochlorine compound | H3-receptor antagonist; H4-receptor agonist |
dimaprit Dimaprit: A histamine H2 receptor agonist that is often used to study the activity of histamine and its receptors. | 2.44 | 2 | 0 | imidothiocarbamic ester | |
ebastine [no description available] | 2.02 | 1 | 0 | organic molecular entity | |
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. | 2.02 | 1 | 0 | piperidines; tertiary amine | anti-allergic agent; H1-receptor antagonist |
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. | 2.02 | 1 | 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. | 3.26 | 6 | 0 | imidazoles; imidothiocarbamic ester | H3-receptor agonist; H4-receptor agonist |
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 |
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. | 2.02 | 1 | 0 | aromatic ether; ethylenediamine derivative | H1-receptor antagonist |
potassium cyanide [no description available] | 2.02 | 1 | 0 | cyanide salt; one-carbon compound; potassium salt | EC 1.15.1.1 (superoxide dismutase) inhibitor; EC 1.9.3.1 (cytochrome c oxidase) inhibitor; neurotoxin |
malondialdehyde Malondialdehyde: The dialdehyde of malonic acid.. malonaldehyde : A dialdehyde that is propane substituted by two oxo groups at the terminal carbon atoms respectively. A biomarker of oxidative damage to lipids caused by smoking, it exists in vivo mainly in the enol form. | 2.02 | 1 | 0 | dialdehyde | biomarker |
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 |
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. | 2.44 | 2 | 0 | 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. | 2.44 | 2 | 0 | | |
tiotidine tiotidine: UD gives slightly different structure for this cpd; RN given refers to parent cpd; structure in first source | 2.02 | 1 | 0 | thiazoles | |
mizolastine [no description available] | 2.02 | 1 | 0 | benzimidazoles | |
mifentidine [no description available] | 2.02 | 1 | 0 | | |
2-(2-aminoethyl)pyridine 2-(2-aminoethyl)pyridine: histamine H1 receptor agonist inducing cross-tolerance to histamine; RN given refers to parent cpd; structure | 2.02 | 1 | 0 | aminoalkylpyridine; primary amine | histamine agonist; metabolite |
2-(2-aminoethyl)thiazole 2-(2-aminoethyl)thiazole: receptor H1 agonist; RN given refers to parent cpd | 2.02 | 1 | 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. | 2.44 | 2 | 0 | aralkylamino compound; imidazoles | histamine agonist; metabolite |
amthamine amthamine: histamine H2 receptor agonist; structure & RN given in first source; RN given refers to parent cpd | 2.44 | 2 | 0 | thiazoles | |
bp 2-94 BP 2-94: BP-2-94 is the (R)-(-)-isomer; RN given for the (R)-isomer; structure in first source | 2.01 | 1 | 0 | | |
iodoproxyfan iodoproxyfan: structure given in first source | 2.94 | 4 | 0 | | |
alpha-methylhistamine (R)-alpha-methylhistamine : An aralkylamino compound that is histamine bearing a methyl substituent at the alpha-position (the R-enantiomer). | 3.4 | 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 |
histidinol L-histidinol : An amino alcohol that is propanol substituted by 1H-imidazol-4-yl group at position 3 and an amino group at position 2 (the 2S stereoisomer). | 2 | 1 | 0 | amino alcohol; imidazoles | EC 2.3.1.97 (glycylpeptide N-tetradecanoyltransferase) inhibitor; Escherichia coli metabolite; human metabolite; Saccharomyces cerevisiae metabolite |
imidazolyl-4-propylamine imidazolyl-4-propylamine: structure given in first source | 2.93 | 4 | 0 | | |
thiourea Thiourea: A photographic fixative used also in the manufacture of resins. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), this substance may reasonably be anticipated to be a carcinogen (Merck Index, 9th ed). Many of its derivatives are ANTITHYROID AGENTS and/or FREE RADICAL SCAVENGERS.. thiourea : The simplest member of the thiourea class, consisting of urea with the oxygen atom substituted by sulfur. | 2.42 | 2 | 0 | 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. | 2.02 | 1 | 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. | 2.72 | 3 | 0 | imidazoles | |
triptorelin iodophenpropit: structure given in first source | 2.02 | 1 | 0 | organoiodine compound | |
4-(1h-imidazol-4-ylmethyl)piperidine 4-(1H-imidazol-4-ylmethyl)piperidine: structure in first source | 3.26 | 6 | 0 | piperidines | |
thioperamide thioperamide: structure given in first source; histamine H3 receptor antagonist | 2.93 | 4 | 0 | primary aliphatic amine | |
vuf 8430 S-(2-guanidylethyl)isothiourea: a histamine H4 receptor agonist; structure in first source | 2.05 | 1 | 0 | | |
jnj 7777120 1-((5-chloro-1H-indol-2-yl)carbonyl)-4-methylpiperazine: an H4 receptor antagonist; structure in first source | 2.02 | 1 | 0 | | |
2-(3-trifluoromethylphenyl)histamine 2-(3-trifluoromethylphenyl)histamine: a selective histamine H1-receptor agonist | 2.05 | 1 | 0 | | |
famotidine [no description available] | 2.02 | 1 | 0 | 1,3-thiazoles; guanidines; sulfonamide | anti-ulcer drug; H2-receptor antagonist; P450 inhibitor |
proxyfan [no description available] | 2.71 | 3 | 0 | benzyl ether | |
gt 2331 [no description available] | 2 | 1 | 0 | | |
(2S)-1-(1H-imidazol-5-yl)-2-propanamine [no description available] | 2.71 | 3 | 0 | aralkylamine | |
4-(1H-imidazol-5-ylmethyl)pyridine [no description available] | 2.44 | 2 | 0 | pyridines | |
4-[3-(1H-imidazol-5-yl)propyl]piperidine [no description available] | 2.01 | 1 | 0 | aralkylamine | |
histaprodifen [no description available] | 2.02 | 1 | 0 | | |
methimepip methimepip: histamine H3 agonist | 2.44 | 2 | 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 | 3.11 | 5 | 0 | | |
piperidines Piperidines: A family of hexahydropyridines. | 2.02 | 1 | 0 | | |
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. | 2.02 | 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 |