| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
cytosine
[no description available] | 2.44 | 2 | 0 | aminopyrimidine;
pyrimidine nucleobase;
pyrimidone | Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
histamine
[no description available] | 1.98 | 1 | 0 | aralkylamino compound;
imidazoles | human metabolite;
mouse metabolite;
neurotransmitter |
nitrates
Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical. | 1.98 | 1 | 0 | monovalent inorganic anion;
nitrogen oxoanion;
reactive nitrogen species | |
nitrites
Nitrites: Salts of nitrous acid or compounds containing the group NO2-. The inorganic nitrites of the type MNO2 (where M=metal) are all insoluble, except the alkali nitrites. The organic nitrites may be isomeric, but not identical with the corresponding nitro compounds. (Grant & Hackh's Chemical Dictionary, 5th ed) | 1.98 | 1 | 0 | monovalent inorganic anion;
nitrogen oxoanion;
reactive nitrogen species | human metabolite |
amitrole
Amitrole: A non-selective post-emergence, translocated herbicide. According to the Seventh Annual Report on Carcinogens (PB95-109781, 1994) this substance may reasonably be anticipated to be a carcinogen. (From Merck Index, 12th ed) It is an irreversible inhibitor of CATALASE, and thus impairs activity of peroxisomes.. amitrole : A member of the class of triazoles that is 1H-1,2,4-triazole substituted by an amino group at position 3. Used to control annual grasses and aquatic weeds (but not on food crops because it causes cancer in laboratory animals). Its use within the EU was banned from September 2017 on the grounds of potential groundwater contamination and risks to aquatic life; there have also been concerns about its endocrine-disrupting properties. | 2.03 | 1 | 0 | aromatic amine;
triazoles | carotenoid biosynthesis inhibitor;
EC 1.11.1.6 (catalase) inhibitor;
herbicide |
5-carboxamidotryptamine
5-carboxamidotryptamine: agonist of 5-HT receptor; structure given in first source | 1.98 | 1 | 0 | tryptamines | |
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. | 1.98 | 1 | 0 | guanidines;
one-carbon compound | EC 1.14.13.39 (nitric oxide synthase) inhibitor;
EC 1.4.3.4 (monoamine oxidase) 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. | 1.98 | 1 | 0 | aromatic ether;
nitrile;
polyether;
tertiary amino compound | |
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. | 1.98 | 1 | 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 |
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. | 1.98 | 1 | 0 | catechols;
secondary alcohol;
secondary amino compound | beta-adrenergic agonist;
bronchodilator agent;
cardiotonic drug;
sympathomimetic agent |
meclofenamic acid
Meclofenamic Acid: A non-steroidal anti-inflammatory agent with antipyretic and antigranulation activities. It also inhibits prostaglandin biosynthesis.. meclofenamic acid : An aminobenzoic acid that is anthranilic acid in which one of the hydrogens attached to the nitrogen is replaced by a 2,6-dichloro-3-methylphenyl group. A non-steroidal anti-inflammatory drug, it is used as the sodium salt for the treatment of dysmenorrhoea (painful periods), osteoarthritis and rheumatoid arthritis. | 1.98 | 1 | 0 | aminobenzoic acid;
organochlorine compound;
secondary amino compound | analgesic;
anticonvulsant;
antineoplastic agent;
antipyretic;
antirheumatic drug;
EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
non-steroidal anti-inflammatory drug |
nitroglycerin
Nitroglycerin: A volatile vasodilator which relieves ANGINA PECTORIS by stimulating GUANYLATE CYCLASE and lowering cytosolic calcium. It is also sometimes used for TOCOLYSIS and explosives.. nitroglycerol : A nitrate ester that is glycerol in which nitro group(s) replace the hydrogen(s) attached to one or more of the hydroxy groups.. nitroglycerin : A nitroglycerol that is glycerol in which the hydrogen atoms of all three hydroxy groups are replaced by nitro groups. It acts as a prodrug, releasing nitric oxide to open blood vessels and so alleviate heart pain. | 1.98 | 1 | 0 | nitroglycerol | explosive;
muscle relaxant;
nitric oxide donor;
prodrug;
tocolytic agent;
vasodilator agent;
xenobiotic |
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. | 1.98 | 1 | 0 | organofluorine compound;
piperidines;
thiazolopyrimidine | antidepressant;
antipsychotic agent;
anxiolytic drug;
dopaminergic antagonist;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
serotonergic antagonist |
prednisolone
Prednisolone: A glucocorticoid with the general properties of the corticosteroids. It is the drug of choice for all conditions in which routine systemic corticosteroid therapy is indicated, except adrenal deficiency states.. prednisolone : A glucocorticoid that is prednisone in which the oxo group at position 11 has been reduced to the corresponding beta-hydroxy group. It is a drug metabolite of prednisone. | 1.98 | 1 | 0 | 11beta-hydroxy steroid;
17alpha-hydroxy steroid;
20-oxo steroid;
21-hydroxy steroid;
3-oxo-Delta(1),Delta(4)-steroid;
C21-steroid;
glucocorticoid;
primary alpha-hydroxy ketone;
tertiary alpha-hydroxy ketone | adrenergic agent;
anti-inflammatory drug;
antineoplastic agent;
drug metabolite;
environmental contaminant;
immunosuppressive agent;
xenobiotic |
methoxamine
Methoxamine: An alpha-1 adrenergic agonist that causes prolonged peripheral VASOCONSTRICTION.. methoxamine : An amphetamine in which the parent 1-phenylpropan-2-amine skeleton is substituted at position 1 with an hydroxy group and the phenyl ring is 2- and 5-substituted with methoxy groups. It is an antihypotensive agent (pressor), an agonist acting directly at alpha-adrenoceptors with selectivity for the alpha-1 adrenoceptor subtype similar to phenylephrine . | 1.98 | 1 | 0 | amphetamines | alpha-adrenergic agonist;
antihypotensive agent |
ornithine
Ornithine: An amino acid produced in the urea cycle by the splitting off of urea from arginine.. ornithine : An alpha-amino acid that is pentanoic acid bearing two amino substituents at positions 2 and 5. | 1.98 | 1 | 0 | non-proteinogenic L-alpha-amino acid;
ornithine | algal metabolite;
hepatoprotective agent;
mouse 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. | 2.39 | 2 | 0 | arginine;
glutamine family amino acid;
L-alpha-amino acid;
proteinogenic amino acid | biomarker;
Escherichia coli metabolite;
micronutrient;
mouse metabolite;
nutraceutical |
carbon disulfide
Carbon Disulfide: A colorless, flammable, poisonous liquid, CS2. It is used as a solvent, and is a counterirritant and has local anesthetic properties but is not used as such. It is highly toxic with pronounced CNS, hematologic, and dermatologic effects. | 2.03 | 1 | 0 | one-carbon compound;
organosulfur compound | |
adamantane
Adamantane: A tricyclo bridged hydrocarbon. | 1.98 | 1 | 0 | adamantanes;
polycyclic alkane | |
thiazoles
[no description available] | 2.03 | 1 | 0 | 1,3-thiazoles;
mancude organic heteromonocyclic parent;
monocyclic heteroarene | |
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 | |
cyanamide
Cyanamide: A cyanide compound which has been used as a fertilizer, defoliant and in many manufacturing processes. It often occurs as the calcium salt, sometimes also referred to as cyanamide. The citrated calcium salt is used in the treatment of alcoholism.. cyanamide : A nitrile that is hydrogen cyanide in which the hydrogen has been replaced by an amino group. | 2.03 | 1 | 0 | nitrile;
one-carbon compound | EC 1.2.1.3 [aldehyde dehydrogenase (NAD(+))] inhibitor |
phosphine
phosphane : The simplest phosphine, consisting of a single phosphorus atom with three hydrogens attached.. phosphine : Phosphane (PH3) and compounds derived from it by substituting one, two or three hydrogen atoms by hydrocarbyl groups: RPH2, R2PH, R3P (R =/= H) are called primary, secondary and tertiary phosphines, respectively. A specific phosphine is preferably named as a substituted phosphane. | 2.03 | 1 | 0 | mononuclear parent hydride;
phosphanes;
phosphine | carcinogenic agent;
fumigant insecticide |
ng-nitroarginine methyl ester
NG-Nitroarginine Methyl Ester: A non-selective inhibitor of nitric oxide synthase. It has been used experimentally to induce hypertension. | 2.39 | 2 | 0 | alpha-amino acid ester;
L-arginine derivative;
methyl ester;
N-nitro compound | EC 1.14.13.39 (nitric oxide synthase) inhibitor |
isothiocyanic acid
[no description available] | 2.03 | 1 | 0 | hydracid;
one-carbon compound | |
u 37883a
U 37883A: an antagonist of vascular ATP-sensitive potassium channel openers; structure given in first source | 1.98 | 1 | 0 | | |
6-azacytosine
6-azacytosine: 3-amino-1,2,4-triazin-5(2H)-one is an isosteric isomer of isocytosine; structure given in first source | 2.44 | 2 | 0 | | |
phosphites
Phosphites: Inorganic salts or organic esters of phosphorous acid that contain the (3-)PO3 radical. (From Grant & Hackh's Chemical Dictionary, 5th ed). phosphite(3-) : A trivalent inorganic anion obtained by removal of all three protons from phosphorous acid. | 2.03 | 1 | 0 | phosphite ion;
trivalent inorganic anion | |
n(g)-iminoethylornithine
[no description available] | 1.98 | 1 | 0 | L-alpha-amino acid | |
bw a1433u
BW A1433U: adenosine A3 receptor antagonist; attenuates hypoxia-induced AH interval prolongation; derivative of 1,3-dipropyl-8-phenylxanthine | 1.98 | 1 | 0 | | |
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. | 1.98 | 1 | 0 | | |
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. | 1.98 | 1 | 0 | guanidines;
L-arginine derivative;
N-nitro compound;
non-proteinogenic L-alpha-amino acid | |
xanthane hydride
xanthane hydride: a sulfurising agent; structure in first source | 2.03 | 1 | 0 | | |
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. | 1.98 | 1 | 0 | C-nitro compound;
furans;
organic sulfide;
tertiary amino compound | anti-ulcer drug;
drug allergen;
environmental contaminant;
H2-receptor antagonist;
xenobiotic |
sulfur
Sulfur: An element that is a member of the chalcogen family. It has an atomic symbol S, atomic number 16, and atomic weight [32.059; 32.076]. It is found in the amino acids cysteine and methionine. | 2.03 | 1 | 0 | chalcogen;
nonmetal atom | macronutrient |
phosphorus
Phosphorus: A non-metal element that has the atomic symbol P, atomic number 15, and atomic weight 31. It is an essential element that takes part in a broad variety of biochemical reactions. | 2.03 | 1 | 0 | monoatomic phosphorus;
nonmetal atom;
pnictogen | macronutrient |