| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
alpha-ketoglutaric acid
2-oxoglutaric acid : An oxo dicarboxylic acid that consists of glutaric acid bearing an oxo substituent at position 2. It is an intermediate metabolite in Krebs cycle. | 2 | 1 | 0 | oxo dicarboxylic acid | fundamental metabolite |
choline
[no description available] | 2.69 | 3 | 0 | cholines | allergen;
Daphnia magna metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
neurotransmitter;
nutrient;
plant metabolite;
Saccharomyces cerevisiae metabolite |
histamine
[no description available] | 2 | 1 | 0 | aralkylamino compound;
imidazoles | human metabolite;
mouse metabolite;
neurotransmitter |
spermidine
[no description available] | 1.99 | 1 | 0 | polyazaalkane;
triamine | autophagy inducer;
fundamental metabolite;
geroprotector |
spermine
[no description available] | 1.99 | 1 | 0 | polyazaalkane;
tetramine | antioxidant;
fundamental metabolite;
immunosuppressive agent |
amantadine
amant: an antiviral compound consisting of an adamantane derivative chemically linked to a water-solube polyanioic matrix; structure in first source | 2.01 | 1 | 0 | adamantanes;
primary aliphatic amine | analgesic;
antiparkinson drug;
antiviral drug;
dopaminergic agent;
NMDA receptor antagonist;
non-narcotic analgesic |
p-aminohippuric acid
p-Aminohippuric Acid: The glycine amide of 4-aminobenzoic acid. Its sodium salt is used as a diagnostic aid to measure effective renal plasma flow (ERPF) and excretory capacity.. p-aminohippurate : A hippurate that is the conjugate base of p-aminohippuric acid, arising from deprotonation of the carboxy group.. p-aminohippuric acid : An N-acylglycine that is the 4-amino derivative of hippuric acid; used as a diagnostic agent in the measurement of renal plasma flow. | 2 | 1 | 0 | N-acylglycine | Daphnia magna metabolite |
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 | 1 | 0 | aliphatic sulfide;
guanidines;
imidazoles;
nitrile | adjuvant;
analgesic;
anti-ulcer drug;
H2-receptor antagonist;
P450 inhibitor |
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. | 2 | 1 | 0 | clonidine;
imidazoline | |
desipramine
Desipramine: A tricyclic dibenzazepine compound that potentiates neurotransmission. Desipramine selectively blocks reuptake of norepinephrine from the neural synapse, and also appears to impair serotonin transport. This compound also possesses minor anticholinergic activity, through its affinity to muscarinic receptors.. desipramine : A dibenzoazepine consisting of 10,11-dihydro-5H-dibenzo[b,f]azepine substituted on nitrogen with a 3-(methylamino)propyl group. | 2.68 | 3 | 0 | dibenzoazepine;
secondary amino compound | adrenergic uptake inhibitor;
alpha-adrenergic antagonist;
antidepressant;
cholinergic antagonist;
drug allergen;
EC 3.1.4.12 (sphingomyelin phosphodiesterase) inhibitor;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
H1-receptor antagonist;
serotonin uptake inhibitor |
guanidine
Guanidine: A strong organic base existing primarily as guanidium ions at physiological pH. It is found in the urine as a normal product of protein metabolism. It is also used in laboratory research as a protein denaturant. (From Martindale, the Extra Pharmacopoeia, 30th ed and Merck Index, 12th ed) It is also used in the treatment of myasthenia and as a fluorescent probe in HPLC.. guanidine : An aminocarboxamidine, the parent compound of the guanidines. | 2 | 1 | 0 | carboxamidine;
guanidines;
one-carbon compound | |
probenecid
Probenecid: The prototypical uricosuric agent. It inhibits the renal excretion of organic anions and reduces tubular reabsorption of urate. Probenecid has also been used to treat patients with renal impairment, and, because it reduces the renal tubular excretion of other drugs, has been used as an adjunct to antibacterial therapy.. probenecid : A sulfonamide in which the nitrogen of 4-sulfamoylbenzoic acid is substituted with two propyl groups. | 2 | 1 | 0 | benzoic acids;
sulfonamide | uricosuric drug |
procainamide
Procainamide: A class Ia antiarrhythmic drug that is structurally-related to PROCAINE.. procainamide : A benzamide that is 4-aminobenzamide substituted on the amide N by a 2-(diethylamino)ethyl group. It is a pharmaceutical antiarrhythmic agent used for the medical treatment of cardiac arrhythmias. | 2.91 | 4 | 0 | benzamides | anti-arrhythmia drug;
platelet aggregation inhibitor;
sodium channel blocker |
tetraethylammonium
Tetraethylammonium: A potassium-selective ion channel blocker. (From J Gen Phys 1994;104(1):173-90) | 3.25 | 6 | 0 | quaternary ammonium ion | |
corticosterone
[no description available] | 2.4 | 2 | 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: 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. | 1.98 | 1 | 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 |
tetramethylammonium chloride
[no description available] | 2.68 | 3 | 0 | organic molecular entity | |
tetrapropylammonium
tetrapropylammonium: more than 12 salts of above cpd in Chemline. tetrapropylammonium : A quarternary ammonium cation with four propyl substituents around the central nitrogen. | 2 | 1 | 0 | quaternary ammonium ion | |
vinblastine
[no description available] | 2 | 1 | 0 | | |
tetrabutylammonium
tetrabutylammonium: lipophilic probe; RN given refers to parent cpd | 2 | 1 | 0 | quaternary ammonium ion | |
tetrapentylammonium
tetrapentylammonium: RN given refers to parent cpd | 2.39 | 2 | 0 | quaternary ammonium ion | |
daunorubicin
Daunorubicin: A very toxic anthracycline aminoglycoside antineoplastic isolated from Streptomyces peucetius and others, used in treatment of LEUKEMIA and other NEOPLASMS.. anthracycline : Anthracyclines are polyketides that have a tetrahydronaphthacenedione ring structure attached by a glycosidic linkage to the amino sugar daunosamine.. daunorubicin : A natural product found in Actinomadura roseola. | 2 | 1 | 0 | aminoglycoside antibiotic;
anthracycline;
p-quinones;
tetracenequinones | antineoplastic agent;
bacterial metabolite |
1-methyl-4-phenylpyridinium
N-methyl-4-phenylpyridinium : A pyridinium ion that is N-methylpyridinium having a phenyl substituent at the 4-position.. 1-Methyl-4-phenylpyridinium: An active neurotoxic metabolite of 1-METHYL-4-PHENYL-1,2,3,6-TETRAHYDROPYRIDINE. The compound reduces dopamine levels, inhibits the biosynthesis of catecholamines, depletes cardiac norepinephrine and inactivates tyrosine hydroxylase. These and other toxic effects lead to cessation of oxidative phosphorylation, ATP depletion, and cell death. The compound, which is related to PARAQUAT, has also been used as an herbicide. | 2.91 | 4 | 0 | pyridinium ion | apoptosis inducer;
herbicide;
human xenobiotic metabolite;
neurotoxin |
n-methylnicotinamide
N-methylnicotinamide: structure. N-methylnicotinamide : A pyridinecarboxamide that is nicotinamide in which one of the amide hydrogens is substituted by a methyl group. | 2.91 | 4 | 0 | pyridinecarboxamide | metabolite |
metiprenaline
metiprenaline: RN given refers to parent cpd | 2.68 | 3 | 0 | | |
quinidine
Quinidine: An optical isomer of quinine, extracted from the bark of the CHINCHONA tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular ACTION POTENTIALS, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission.. quinidine : A cinchona alkaloid consisting of cinchonine with the hydrogen at the 6-position of the quinoline ring substituted by methoxy. | 2.4 | 2 | 0 | cinchona alkaloid | alpha-adrenergic antagonist;
anti-arrhythmia drug;
antimalarial;
drug allergen;
EC 1.14.13.181 (13-deoxydaunorubicin hydroxylase) inhibitor;
EC 3.6.3.44 (xenobiotic-transporting ATPase) inhibitor;
muscarinic antagonist;
P450 inhibitor;
potassium channel blocker;
sodium channel blocker |
pancuronium
Pancuronium: A bis-quaternary steroid that is a competitive nicotinic antagonist. As a neuromuscular blocking agent it is more potent than CURARE but has less effect on the circulatory system and on histamine release.. pancuronium : A steroid ester in which a 5alpha-androstane skeleton is C-3alpha- and C-17beta-disubstituted with acetoxy groups and 2beta- and 16beta-disubstituted with 1-methylpiperidinium-1-yl groups. It is a non-depolarizing curare-mimetic muscle relaxant. | 1.99 | 1 | 0 | acetate ester;
steroid ester | cholinergic antagonist;
muscle relaxant;
nicotinic antagonist |
quinine
[no description available] | 3.09 | 5 | 0 | cinchona alkaloid | antimalarial;
muscle relaxant;
non-narcotic analgesic |
penicillin v
[no description available] | 2.39 | 2 | 0 | 1,1'-diethyl-2,2'-cyanine;
quinolines | |
histamine
[no description available] | 2 | 1 | 0 | aralkylamino compound;
imidazoles | human metabolite;
mouse metabolite;
neurotransmitter |
p-aminohippuric acid
p-Aminohippuric Acid: The glycine amide of 4-aminobenzoic acid. Its sodium salt is used as a diagnostic aid to measure effective renal plasma flow (ERPF) and excretory capacity.. p-aminohippurate : A hippurate that is the conjugate base of p-aminohippuric acid, arising from deprotonation of the carboxy group.. p-aminohippuric acid : An N-acylglycine that is the 4-amino derivative of hippuric acid; used as a diagnostic agent in the measurement of renal plasma flow. | 2.88 | 4 | 0 | N-acylglycine | Daphnia magna metabolite |
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. | 1.96 | 1 | 0 | aliphatic sulfide;
guanidines;
imidazoles;
nitrile | adjuvant;
analgesic;
anti-ulcer drug;
H2-receptor antagonist;
P450 inhibitor |
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. | 2.4 | 2 | 0 | clonidine;
imidazoline | |
desipramine
Desipramine: A tricyclic dibenzazepine compound that potentiates neurotransmission. Desipramine selectively blocks reuptake of norepinephrine from the neural synapse, and also appears to impair serotonin transport. This compound also possesses minor anticholinergic activity, through its affinity to muscarinic receptors.. desipramine : A dibenzoazepine consisting of 10,11-dihydro-5H-dibenzo[b,f]azepine substituted on nitrogen with a 3-(methylamino)propyl group. | 2.4 | 2 | 0 | dibenzoazepine;
secondary amino compound | adrenergic uptake inhibitor;
alpha-adrenergic antagonist;
antidepressant;
cholinergic antagonist;
drug allergen;
EC 3.1.4.12 (sphingomyelin phosphodiesterase) inhibitor;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
H1-receptor antagonist;
serotonin uptake inhibitor |
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. | 2.01 | 1 | 0 | (trifluoromethyl)benzenes;
aromatic ether;
secondary amino compound | |
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. | 1.99 | 1 | 0 | catechols;
secondary alcohol;
secondary amino compound | beta-adrenergic agonist;
bronchodilator agent;
cardiotonic drug;
sympathomimetic agent |
probenecid
Probenecid: The prototypical uricosuric agent. It inhibits the renal excretion of organic anions and reduces tubular reabsorption of urate. Probenecid has also been used to treat patients with renal impairment, and, because it reduces the renal tubular excretion of other drugs, has been used as an adjunct to antibacterial therapy.. probenecid : A sulfonamide in which the nitrogen of 4-sulfamoylbenzoic acid is substituted with two propyl groups. | 2.66 | 3 | 0 | benzoic acids;
sulfonamide | uricosuric drug |
tetraethylammonium
Tetraethylammonium: A potassium-selective ion channel blocker. (From J Gen Phys 1994;104(1):173-90) | 2.88 | 4 | 0 | quaternary ammonium ion | |
trimethoprim
Trimethoprim: A pyrimidine inhibitor of dihydrofolate reductase, it is an antibacterial related to PYRIMETHAMINE. It is potentiated by SULFONAMIDES and the TRIMETHOPRIM, SULFAMETHOXAZOLE DRUG COMBINATION is the form most often used. It is sometimes used alone as an antimalarial. TRIMETHOPRIM RESISTANCE has been reported.. trimethoprim : An aminopyrimidine antibiotic whose structure consists of pyrimidine 2,4-diamine and 1,2,3-trimethoxybenzene moieties linked by a methylene bridge. | 1.96 | 1 | 0 | aminopyrimidine;
methoxybenzenes | antibacterial drug;
diuretic;
drug allergen;
EC 1.5.1.3 (dihydrofolate reductase) inhibitor;
environmental contaminant;
xenobiotic |
tyramine
[no description available] | 1.98 | 1 | 0 | monoamine molecular messenger;
primary amino compound;
tyramines | EC 3.1.1.8 (cholinesterase) inhibitor;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
neurotransmitter |
corticosterone
[no description available] | 2.4 | 2 | 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 |
levodopa
Levodopa: The naturally occurring form of DIHYDROXYPHENYLALANINE and the immediate precursor of DOPAMINE. Unlike dopamine itself, it can be taken orally and crosses the blood-brain barrier. It is rapidly taken up by dopaminergic neurons and converted to DOPAMINE. It is used for the treatment of PARKINSONIAN DISORDERS and is usually given with agents that inhibit its conversion to dopamine outside of the central nervous system.. L-dopa : An optically active form of dopa having L-configuration. Used to treat the stiffness, tremors, spasms, and poor muscle control of Parkinson's disease | 1.99 | 1 | 0 | amino acid zwitterion;
dopa;
L-tyrosine derivative;
non-proteinogenic L-alpha-amino acid | allelochemical;
antidyskinesia agent;
antiparkinson drug;
dopaminergic agent;
hapten;
human metabolite;
mouse metabolite;
neurotoxin;
plant growth retardant;
plant metabolite;
prodrug |
sodium cyanide
Sodium Cyanide: A highly poisonous compound that is an inhibitor of many metabolic processes and is used as a test reagent for the function of chemoreceptors. It is also used in many industrial processes.. sodium cyanide : A cyanide salt containing equal numbers of sodium cations and cyanide anions. | 1.96 | 1 | 0 | cyanide salt;
one-carbon compound;
sodium salt | EC 1.15.1.1 (superoxide dismutase) inhibitor |
methyldopa
Methyldopa: An alpha-2 adrenergic agonist that has both central and peripheral nervous system effects. Its primary clinical use is as an antihypertensive agent.. alpha-methyl-L-dopa : A derivative of L-tyrosine having a methyl group at the alpha-position and an additional hydroxy group at the 3-position on the phenyl ring. | 1.98 | 1 | 0 | L-tyrosine derivative;
non-proteinogenic L-alpha-amino acid | alpha-adrenergic agonist;
antihypertensive agent;
hapten;
peripheral nervous system drug;
sympatholytic agent |
1-methyl-4-phenylpyridinium
N-methyl-4-phenylpyridinium : A pyridinium ion that is N-methylpyridinium having a phenyl substituent at the 4-position.. 1-Methyl-4-phenylpyridinium: An active neurotoxic metabolite of 1-METHYL-4-PHENYL-1,2,3,6-TETRAHYDROPYRIDINE. The compound reduces dopamine levels, inhibits the biosynthesis of catecholamines, depletes cardiac norepinephrine and inactivates tyrosine hydroxylase. These and other toxic effects lead to cessation of oxidative phosphorylation, ATP depletion, and cell death. The compound, which is related to PARAQUAT, has also been used as an herbicide. | 2.7 | 3 | 0 | pyridinium ion | apoptosis inducer;
herbicide;
human xenobiotic metabolite;
neurotoxin |
metiprenaline
metiprenaline: RN given refers to parent cpd | 1.99 | 1 | 0 | | |
quinine
[no description available] | 2.65 | 3 | 0 | cinchona alkaloid | antimalarial;
muscle relaxant;
non-narcotic analgesic |
bilirubin
[no description available] | 1.98 | 1 | 0 | biladienes;
dicarboxylic acid | antioxidant;
human metabolite;
mouse metabolite |
3,3'-diethyloxacarbocyanine
3,3'-diethyloxacarbocyanine: inhibits bovine heart mitochondrial NADH oxidase activity; structure given in first source; RN given refers to parent cpd. C3-oxacyanine cation : The cationic form of a C3 cyanine dye having 3-ethyl-1,3-benzoxazol-2(3H)-yl units at each end. | 1.99 | 1 | 0 | 1,3-benzoxazoles;
benzoxazolium ion;
cyanine dye | fluorochrome |
1,1'-diethyl-2,2'-cyanine
pseudoisocyanine: metachromatic quinoline tissue stain; may polymerize to yield different colors; also used in fluorescence cytochemistry may bind to DNA; minor descriptor (79-86); on-line & INDEX MEDICUS search QUINOLINES (79-86); RN given refers to parent cpd | 2 | 1 | 0 | 1,1'-diethyl-2,2'-cyanine;
quinolines | |
carbocyanines
Carbocyanines: Compounds that contain three methine groups. They are frequently used as cationic dyes used for differential staining of biological materials. | 1.99 | 1 | 0 | cyanine dye;
organic iodide salt | fluorochrome |
alpha-monofluoromethyldopa
alpha-monofluoromethyldopa: structure given in third source; RN given refers to (DL)-isomer | 1.98 | 1 | 0 | | |