Page last updated: 2024-10-24

L-arginine transmembrane transporter activity

Definition

Target type: molecularfunction

Enables the transfer of L-arginine from one side of a membrane to the other. [GOC:dph, RHEA:32143]

L-arginine transmembrane transporter activity refers to the facilitated movement of the amino acid L-arginine across cell membranes. This process is essential for maintaining cellular homeostasis and supporting various physiological functions. L-arginine is a crucial precursor for nitric oxide (NO) synthesis, a signaling molecule involved in vasodilation, immune response, and neurotransmission. L-arginine transmembrane transporters are integral membrane proteins that bind to L-arginine and facilitate its transport down its concentration gradient. This movement can be passive, driven solely by the concentration difference, or active, requiring energy to move L-arginine against its gradient. The specific mechanism of transport varies depending on the transporter protein, but generally involves conformational changes within the transporter molecule that allow L-arginine to move from one side of the membrane to the other. Disruptions in L-arginine transmembrane transporter activity can lead to various health issues, including cardiovascular disease, immune dysfunction, and neurological disorders.'
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Proteins (3)

ProteinDefinitionTaxonomy
Multidrug and toxin extrusion protein 1A multidrug and toxin extrusion protein 1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q96FL8]Homo sapiens (human)
Cationic amino acid transporter 3A cationic amino acid transporter 3 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q8WY07]Homo sapiens (human)
Solute carrier family 22 member 2A solute carrier family 22 member 2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:O15244]Homo sapiens (human)

Compounds (95)

CompoundDefinitionClassesRoles
agmatineAgmatine: Decarboxylated arginine, isolated from several plant and animal sources, e.g., pollen, ergot, herring sperm, octopus muscle.guanidines;
primary amino compound
Escherichia coli metabolite;
mouse metabolite
cholinecholinesallergen;
Daphnia magna metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
neurotransmitter;
nutrient;
plant metabolite;
Saccharomyces cerevisiae metabolite
histaminearalkylamino compound;
imidazoles
human metabolite;
mouse metabolite;
neurotransmitter
niacinNiacin: A water-soluble vitamin of the B complex occurring in various animal and plant tissues. It is required by the body for the formation of coenzymes NAD and NADP. It has PELLAGRA-curative, vasodilating, and antilipemic properties.

nicotinic acid : A pyridinemonocarboxylic acid that is pyridine in which the hydrogen at position 3 is replaced by a carboxy group.

vitamin B3 : Any member of a group of vitamers that belong to the chemical structural class called pyridines that exhibit biological activity against vitamin B3 deficiency. Vitamin B3 deficiency causes a condition known as pellagra whose symptoms include depression, dermatitis and diarrhea. The vitamers include nicotinic acid and nicotinamide (and their ionized and salt forms).
pyridine alkaloid;
pyridinemonocarboxylic acid;
vitamin B3
antidote;
antilipemic drug;
EC 3.5.1.19 (nicotinamidase) inhibitor;
Escherichia coli metabolite;
human urinary metabolite;
metabolite;
mouse metabolite;
plant metabolite;
vasodilator agent
tacrinetacrine : A member of the class of acridines that is 1,2,3,4-tetrahydroacridine substituted by an amino group at position 9. It is used in the treatment of Alzheimer's disease.

Tacrine: A cholinesterase inhibitor that crosses the blood-brain barrier. Tacrine has been used to counter the effects of muscle relaxants, as a respiratory stimulant, and in the treatment of Alzheimer's disease and other central nervous system disorders.
acridines;
aromatic amine
EC 3.1.1.7 (acetylcholinesterase) inhibitor
amantadineamant: an antiviral compound consisting of an adamantane derivative chemically linked to a water-solube polyanioic matrix; structure in first sourceadamantanes;
primary aliphatic amine
analgesic;
antiparkinson drug;
antiviral drug;
dopaminergic agent;
NMDA receptor antagonist;
non-narcotic analgesic
astemizoleastemizole : A piperidine compound having a 2-(4-methoxyphenyl)ethyl group at the 1-position and an N-[(4-fluorobenzyl)benzimidazol-2-yl]amino group at the 4-position.

Astemizole: Antihistamine drug now withdrawn from the market in many countries because of rare but potentially fatal side effects.
benzimidazoles;
piperidines
anti-allergic agent;
anticoronaviral agent;
H1-receptor antagonist
bithionolbithionol : An aryl sulfide that is diphenyl sulfide in which each phenyl group is substituted at position 2 by hydroxy and at positions 3 and 5 by chlorine. A fungicide and anthelmintic, it was used in various topical drug products for the treatment of liver flukes, but withdrawn after being shown to be a potent photosensitizer with the potential to cause serious skin disorders.

Bithionol: Halogenated anti-infective agent that is used against trematode and cestode infestations.
aryl sulfide;
bridged diphenyl antifungal drug;
bridged diphenyl fungicide;
dichlorobenzene;
organochlorine pesticide;
polyphenol
antifungal agrochemical;
antiplatyhelmintic drug
buspironebuspirone : An azaspiro compound that is 8-azaspiro[4.5]decane-7,9-dione substituted at the nitrogen atom by a 4-(piperazin-1-yl)butyl group which in turn is substituted by a pyrimidin-2-yl group at the N(4) position.

Buspirone: An anxiolytic agent and serotonin receptor agonist belonging to the azaspirodecanedione class of compounds. Its structure is unrelated to those of the BENZODIAZAPINES, but it has an efficacy comparable to DIAZEPAM.
azaspiro compound;
N-alkylpiperazine;
N-arylpiperazine;
organic heteropolycyclic compound;
piperidones;
pyrimidines
anxiolytic drug;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
sedative;
serotonergic agonist
camostatcamostat : A benzoate ester resulting from the formal condensation of the carboxy group of 4-guanidinobenzoic acid with the hydroxy group of 2-(dimethylamino)-2-oxoethyl (4-hydroxyphenyl)acetate. It is a potent inhibitor of the human transmembrane protease serine 2 (TMPRSS2) and its mesylate salt is currently under investigation for its effectiveness in COVID-19 patients.benzoate ester;
carboxylic ester;
diester;
guanidines;
tertiary carboxamide
anti-inflammatory agent;
anticoronaviral agent;
antifibrinolytic drug;
antihypertensive agent;
antineoplastic agent;
antiviral agent;
serine protease inhibitor
carvedilolcarbazoles;
secondary alcohol;
secondary amino compound
alpha-adrenergic antagonist;
antihypertensive agent;
beta-adrenergic antagonist;
cardiovascular drug;
vasodilator agent
cetirizinecetirizine : 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.

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.
ether;
monocarboxylic acid;
monochlorobenzenes;
piperazines
anti-allergic agent;
environmental contaminant;
H1-receptor antagonist;
xenobiotic
ciclopiroxcyclic hydroxamic acid;
hydroxypyridone antifungal drug;
pyridone
antibacterial agent;
antiseborrheic
cimetidinecimetidine : 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.

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.
aliphatic sulfide;
guanidines;
imidazoles;
nitrile
adjuvant;
analgesic;
anti-ulcer drug;
H2-receptor antagonist;
P450 inhibitor
clonidineclonidine (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.

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;
imidazoline
desipraminedesipramine : A dibenzoazepine consisting of 10,11-dihydro-5H-dibenzo[b,f]azepine substituted on nitrogen with a 3-(methylamino)propyl group.

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.
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
diclofenacdiclofenac : A monocarboxylic acid consisting of phenylacetic acid having a (2,6-dichlorophenyl)amino group at the 2-position.

Diclofenac: A non-steroidal anti-inflammatory agent (NSAID) with antipyretic and analgesic actions. It is primarily available as the sodium salt.
amino acid;
aromatic amine;
dichlorobenzene;
monocarboxylic acid;
secondary amino compound
antipyretic;
drug allergen;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
environmental contaminant;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
xenobiotic
dipyridamoledipyridamole : A pyrimidopyrimidine that is 2,2',2'',2'''-(pyrimido[5,4-d]pyrimidine-2,6-diyldinitrilo)tetraethanol substituted by piperidin-1-yl groups at positions 4 and 8 respectively. A vasodilator agent, it inhibits the formation of blood clots.

Dipyridamole: A phosphodiesterase inhibitor that blocks uptake and metabolism of adenosine by erythrocytes and vascular endothelial cells. Dipyridamole also potentiates the antiaggregating action of prostacyclin. (From AMA Drug Evaluations Annual, 1994, p752)
piperidines;
pyrimidopyrimidine;
tertiary amino compound;
tetrol
adenosine phosphodiesterase inhibitor;
EC 3.5.4.4 (adenosine deaminase) inhibitor;
platelet aggregation inhibitor;
vasodilator agent
disopyramidedisopyramide : A monocarboxylic acid amide that is butanamide substituted by a diisopropylamino group at position 4, a phenyl group at position 2 and a pyridin-2-yl group at position 2. It is used as a anti-arrhythmia drug.

Disopyramide: A class I anti-arrhythmic agent (one that interferes directly with the depolarization of the cardiac membrane and thus serves as a membrane-stabilizing agent) with a depressant action on the heart similar to that of guanidine. It also possesses some anticholinergic and local anesthetic properties.
monocarboxylic acid amide;
pyridines;
tertiary amino compound
anti-arrhythmia drug
domperidonedomperidone : 1-[3-(Piperidin-1-yl)propyl]-1,3-dihydro-2H-benzimidazol-2-one in which the 4-position of the piperidine ring is substituted by a 5-chloro-1,3-dihydro-2H-benzimidazol-2-on-1-yl group. A dopamine antagonist, it is used as an antiemetic for the short-term treatment of nausea and vomiting, and to control gastrointestinal effects of dopaminergic drugs given in the management of parkinsonism. The free base is used in oral suspensions, while the maleate salt is used in tablet preparations.

Domperidone: A specific blocker of dopamine receptors. It speeds gastrointestinal peristalsis, causes prolactin release, and is used as antiemetic and tool in the study of dopaminergic mechanisms.
benzimidazoles;
heteroarylpiperidine
antiemetic;
dopaminergic antagonist
epinastineepinastine : A benzazepine that is 6,11-dihydro-5H-dibenzo[b,e]azepine in which the azepine ring is fused to the e side of 4,5-dihydro-1H-imidazol-2-amine.

epinastine: RN given refers parent cpd
benzazepine;
guanidines
anti-allergic agent;
H1-receptor antagonist;
histamine antagonist;
ophthalmology drug
furosemidefurosemide : A chlorobenzoic acid that is 4-chlorobenzoic acid substituted by a (furan-2-ylmethyl)amino and a sulfamoyl group at position 2 and 5 respectively. It is a diuretic used in the treatment of congestive heart failure.

Furosemide: A benzoic-sulfonamide-furan. It is a diuretic with fast onset and short duration that is used for EDEMA and chronic RENAL INSUFFICIENCY.
chlorobenzoic acid;
furans;
sulfonamide
environmental contaminant;
loop diuretic;
xenobiotic
gabexateGabexate: A serine proteinase inhibitor used therapeutically in the treatment of pancreatitis, disseminated intravascular coagulation (DIC), and as a regional anticoagulant for hemodialysis. The drug inhibits the hydrolytic effects of thrombin, plasmin, and kallikrein, but not of chymotrypsin and aprotinin.benzoate ester
granisetronaromatic amide;
indazoles
lidocainelidocaine : The monocarboxylic acid amide resulting from the formal condensation of N,N-diethylglycine with 2,6-dimethylaniline.

Lidocaine: A local anesthetic and cardiac depressant used as an antiarrhythmia agent. Its actions are more intense and its effects more prolonged than those of PROCAINE but its duration of action is shorter than that of BUPIVACAINE or PRILOCAINE.
benzenes;
monocarboxylic acid amide;
tertiary amino compound
anti-arrhythmia drug;
drug allergen;
environmental contaminant;
local anaesthetic;
xenobiotic
imipramineimipramine : A dibenzoazepine that is 5H-dibenzo[b,f]azepine substituted by a 3-(dimethylamino)propyl group at the nitrogen atom.

Imipramine: The prototypical tricyclic antidepressant. It has been used in major depression, dysthymia, bipolar depression, attention-deficit disorders, agoraphobia, and panic disorders. It has less sedative effect than some other members of this therapeutic group.
dibenzoazepineadrenergic uptake inhibitor;
antidepressant;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
indomethacinindometacin : A member of the class of indole-3-acetic acids that is indole-3-acetic acid in which the indole ring is substituted at positions 1, 2 and 5 by p-chlorobenzoyl, methyl, and methoxy groups, respectively. A non-steroidal anti-inflammatory drug, it is used in the treatment of musculoskeletal and joint disorders including osteoarthritis, rheumatoid arthritis, gout, bursitis and tendinitis.

Indomethacin: A non-steroidal anti-inflammatory agent (NSAID) that inhibits CYCLOOXYGENASE, which is necessary for the formation of PROSTAGLANDINS and other AUTACOIDS. It also inhibits the motility of POLYMORPHONUCLEAR LEUKOCYTES.
aromatic ether;
indole-3-acetic acids;
monochlorobenzenes;
N-acylindole
analgesic;
drug metabolite;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
environmental contaminant;
gout suppressant;
non-steroidal anti-inflammatory drug;
xenobiotic;
xenobiotic metabolite
avaproirbesartan : A biphenylyltetrazole that is an angiotensin II receptor antagonist used mainly for the treatment of hypertension.

Irbesartan: A spiro compound, biphenyl and tetrazole derivative that acts as an angiotensin II type 1 receptor antagonist. It is used in the management of HYPERTENSION, and in the treatment of kidney disease.
azaspiro compound;
biphenylyltetrazole
angiotensin receptor antagonist;
antihypertensive agent;
environmental contaminant;
xenobiotic
losartanlosartan : A biphenylyltetrazole where a 1,1'-biphenyl group is attached at the 5-position and has an additional trisubstituted imidazol-1-ylmethyl group at the 4'-position

Losartan: An antagonist of ANGIOTENSIN TYPE 1 RECEPTOR with antihypertensive activity due to the reduced pressor effect of ANGIOTENSIN II.
biphenylyltetrazole;
imidazoles
angiotensin receptor antagonist;
anti-arrhythmia drug;
antihypertensive agent;
endothelin receptor antagonist
memantineadamantanes;
primary aliphatic amine
antidepressant;
antiparkinson drug;
dopaminergic agent;
neuroprotective agent;
NMDA receptor antagonist
metforminmetformin : A member of the class of guanidines that is biguanide the carrying two methyl substituents at position 1.

Metformin: A biguanide hypoglycemic agent used in the treatment of non-insulin-dependent diabetes mellitus not responding to dietary modification. Metformin improves glycemic control by improving insulin sensitivity and decreasing intestinal absorption of glucose. (From Martindale, The Extra Pharmacopoeia, 30th ed, p289)
guanidinesenvironmental contaminant;
geroprotector;
hypoglycemic agent;
xenobiotic
mitoxantronemitoxantrone : A dihydroxyanthraquinone that is 1,4-dihydroxy-9,10-anthraquinone which is substituted by 6-hydroxy-1,4-diazahexyl groups at positions 5 and 8.

Mitoxantrone: An anthracenedione-derived antineoplastic agent.
dihydroxyanthraquinoneanalgesic;
antineoplastic agent
nifekalantamine
ondansetronOndansetron: A competitive serotonin type 3 receptor antagonist. It is effective in the treatment of nausea and vomiting caused by cytotoxic chemotherapy drugs, including cisplatin, and has reported anxiolytic and neuroleptic properties.carbazoles
orphenadrineorphenadrine : A tertiary amino compound which is the phenyl-o-tolylmethyl ether of 2-(dimethylamino)ethanol.

Orphenadrine: A muscarinic antagonist used to treat drug-induced parkinsonism and to relieve pain from muscle spasm.
ether;
tertiary amino compound
antidyskinesia agent;
antiparkinson drug;
H1-receptor antagonist;
muscarinic antagonist;
muscle relaxant;
NMDA receptor antagonist;
parasympatholytic
pantoprazolepantoprazole : A member of the class of benzimidazoles that is 1H-benzimidazole substituted by a difluoromethoxy group at position 5 and a [(3,4-dimethoxypyridin-2-yl)methyl]sulfinyl group at position 2.

Pantoprazole: 2-pyridinylmethylsulfinylbenzimidazole proton pump inhibitor that is used in the treatment of GASTROESOPHAGEAL REFLUX and PEPTIC ULCER.
aromatic ether;
benzimidazoles;
organofluorine compound;
pyridines;
sulfoxide
anti-ulcer drug;
EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor;
environmental contaminant;
xenobiotic
pentamidinepentamidine : A diether consisting of pentane-1,5-diol in which both hydroxyl hydrogens have been replaced by 4-amidinophenyl groups. A trypanocidal drug that is used for treatment of cutaneous leishmaniasis and Chagas disease.

Pentamidine: Antiprotozoal agent effective in trypanosomiasis, leishmaniasis, and some fungal infections; used in treatment of PNEUMOCYSTIS pneumonia in HIV-infected patients. It may cause diabetes mellitus, central nervous system damage, and other toxic effects.
aromatic ether;
carboxamidine;
diether
anti-inflammatory agent;
antifungal agent;
calmodulin antagonist;
chemokine receptor 5 antagonist;
EC 2.3.1.48 (histone acetyltransferase) inhibitor;
NMDA receptor antagonist;
S100 calcium-binding protein B inhibitor;
trypanocidal drug;
xenobiotic
phenacetinSaridon: contains phenacetin, caffeine, propyphenazone & pyrithyldioneacetamides;
aromatic ether
cyclooxygenase 3 inhibitor;
non-narcotic analgesic;
peripheral nervous system drug
phenoxybenzaminePhenoxybenzamine: An alpha-adrenergic antagonist with long duration of action. It has been used to treat hypertension and as a peripheral vasodilator.aromatic amine
prazosinprazosin : 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.

Prazosin: A selective adrenergic alpha-1 antagonist used in the treatment of HEART FAILURE; HYPERTENSION; PHEOCHROMOCYTOMA; RAYNAUD DISEASE; PROSTATIC HYPERTROPHY; and URINARY RETENTION.
aromatic ether;
furans;
monocarboxylic acid amide;
piperazines;
quinazolines
alpha-adrenergic antagonist;
antihypertensive agent;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
procainamideprocainamide : 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.

Procainamide: A class Ia antiarrhythmic drug that is structurally-related to PROCAINE.
benzamidesanti-arrhythmia drug;
platelet aggregation inhibitor;
sodium channel blocker
ranitidinearalkylamine
rimantadineRimantadine: An RNA synthesis inhibitor that is used as an antiviral agent in the prophylaxis and treatment of influenza.alkylamine
risperidonerisperidone : A member of the class of pyridopyrimidines that is 2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one carrying an additional 2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl group at position 2.

Risperidone: A selective blocker of DOPAMINE D2 RECEPTORS and SEROTONIN 5-HT2 RECEPTORS that acts as an atypical antipsychotic agent. It has been shown to improve both positive and negative symptoms in the treatment of SCHIZOPHRENIA.
1,2-benzoxazoles;
heteroarylpiperidine;
organofluorine compound;
pyridopyrimidine
alpha-adrenergic antagonist;
dopaminergic antagonist;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
H1-receptor antagonist;
psychotropic drug;
second generation antipsychotic;
serotonergic antagonist
imatinibaromatic amine;
benzamides;
N-methylpiperazine;
pyridines;
pyrimidines
antineoplastic agent;
apoptosis inducer;
tyrosine kinase inhibitor
sulfacetamidesulfacetamide : A sulfonamide that is sulfanilamide acylated on the sulfonamide nitrogen.

Sulfacetamide: An anti-bacterial agent that is used topically to treat skin infections and orally for urinary tract infections.
N-sulfonylcarboxamide;
substituted aniline
antibacterial drug;
antiinfective agent;
antimicrobial agent;
EC 2.5.1.15 (dihydropteroate synthase) inhibitor
sumatriptansumatriptan : A sulfonamide that consists of N,N-dimethyltryptamine bearing an additional (N-methylsulfamoyl)methyl substituent at position 5. Selective agonist for a vascular 5-HT1 receptor subtype (probably a member of the 5-HT1D family). Used (in the form of its succinate salt) for the acute treatment of migraine with or without aura in adults.

Sumatriptan: A serotonin agonist that acts selectively at 5HT1 receptors. It is used in the treatment of MIGRAINE DISORDERS.
sulfonamide;
tryptamines
serotonergic agonist;
vasoconstrictor agent
tetraethylammoniumTetraethylammonium: A potassium-selective ion channel blocker. (From J Gen Phys 1994;104(1):173-90)quaternary ammonium ion
thiabendazoleTresaderm: dermatologic soln containing dexamethasone, thiabendazole & neomycin sulfate1,3-thiazoles;
benzimidazole fungicide;
benzimidazoles
antifungal agrochemical;
antinematodal drug
ici 204,219zafirlukast: a leukotriene D4 receptor antagonistcarbamate ester;
indoles;
N-sulfonylcarboxamide
anti-asthmatic agent;
leukotriene antagonist
corticosterone11beta-hydroxy steroid;
20-oxo steroid;
21-hydroxy steroid;
3-oxo-Delta(4) steroid;
C21-steroid;
glucocorticoid;
primary alpha-hydroxy ketone
human metabolite;
mouse metabolite
spironolactonespironolactone : 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.

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)
3-oxo-Delta(4) steroid;
oxaspiro compound;
steroid lactone;
thioester
aldosterone antagonist;
antihypertensive agent;
diuretic;
environmental contaminant;
xenobiotic
lysineL-lysine : An L-alpha-amino acid; the L-isomer of lysine.

lysine : A diamino acid that is caproic (hexanoic) acid bearing two amino substituents at positions 2 and 6.

Lysine: An essential amino acid. It is often added to animal feed.
aspartate family amino acid;
L-alpha-amino acid;
L-alpha-amino acid zwitterion;
lysine;
organic molecular entity;
proteinogenic amino acid
algal metabolite;
anticonvulsant;
Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
plant metabolite;
Saccharomyces cerevisiae metabolite
ethinyl estradiol17alpha-ethynylestradiol : A 3-hydroxy steroid that is estradiol substituted by a ethynyl group at position 17. It is a xenoestrogen synthesized from estradiol and has been shown to exhibit high estrogenic potency on oral administration.

Ethinyl Estradiol: A semisynthetic alkylated ESTRADIOL with a 17-alpha-ethinyl substitution. It has high estrogenic potency when administered orally, and is often used as the estrogenic component in ORAL CONTRACEPTIVES.
17-hydroxy steroid;
3-hydroxy steroid;
terminal acetylenic compound
xenoestrogen
tubocurarineisoquinoline alkaloid : Any alkaloid that has a structure based on an isoquinoline nucleus. They are derived from the amino acids like tyrosine and phenylalanine.

tubocurarine : A benzylisoquinoline alkaloid muscle relaxant which constitutes the active component of curare.

Tubocurarine: A neuromuscular blocker and active ingredient in CURARE; plant based alkaloid of Menispermaceae.
bisbenzylisoquinoline alkaloiddrug allergen;
muscle relaxant;
nicotinic antagonist
argininearginine : An alpha-amino acid that is glycine in which the alpha-is substituted by a 3-guanidinopropyl group.

Arginine: An essential amino acid that is physiologically active in the L-form.
arginine;
glutamine family amino acid;
L-alpha-amino acid;
proteinogenic amino acid
biomarker;
Escherichia coli metabolite;
micronutrient;
mouse metabolite;
nutraceutical
tetramethylammonium chlorideorganic molecular entity
methylergonovineMethylergonovine: A homolog of ERGONOVINE containing one more CH2 group. (Merck Index, 11th ed)ergoline alkaloid
phenforminphenformin : A member of the class of biguanides that is biguanide in which one of the terminal nitrogen atoms is substituted by a 2-phenylethyl group. It was used as an anti-diabetic drug but was later withdrawn from the market due to potential risk of lactic acidosis.

Phenformin: A biguanide hypoglycemic agent with actions and uses similar to those of METFORMIN. Although it is generally considered to be associated with an unacceptably high incidence of lactic acidosis, often fatal, it is still available in some countries. (From Martindale, The Extra Pharmacopoeia, 30th ed, p290)
biguanidesantineoplastic agent;
geroprotector;
hypoglycemic agent
azacitidine5-azacytidine : An N-glycosyl-1,3,5-triazine that is 4-amino-1,3,5-triazin-2(1H)-one substituted by a beta-D-ribofuranosyl residue via an N-glycosidic linkage. An antineoplastic agent, it is used in the treatment of myeloid leukaemia.

Azacitidine: A pyrimidine analogue that inhibits DNA methyltransferase, impairing DNA methylation. It is also an antimetabolite of cytidine, incorporated primarily into RNA. Azacytidine has been used as an antineoplastic agent.
N-glycosyl-1,3,5-triazine;
nucleoside analogue
antineoplastic agent
tetrapropylammoniumtetrapropylammonium : A quarternary ammonium cation with four propyl substituents around the central nitrogen.

tetrapropylammonium: more than 12 salts of above cpd in Chemline
quaternary ammonium ion
dihydroergotaminedihydroergotamine : Ergotamine in which a single bond replaces the double bond between positions 9 and 10. A semisynthetic ergot alkaloid with weaker oxytocic and vasoconstrictor properties than ergotamine, it is used (as the methanesulfonic or tartaric acid salts) for the treatment of migraine and orthostatic hypotension.

Dihydroergotamine: A 9,10alpha-dihydro derivative of ERGOTAMINE. It is used as a vasoconstrictor, specifically for the therapy of MIGRAINE DISORDERS.
ergot alkaloid;
semisynthetic derivative
dopamine agonist;
non-narcotic analgesic;
serotonergic agonist;
sympatholytic agent;
vasoconstrictor agent
erythromycinerythromycin : Any of several wide-spectrum macrolide antibiotics obtained from actinomycete Saccharopolyspora erythraea (formerly known as Streptomyces erythraeus).

erythromycin A : An erythromycin that consists of erythronolide A having 2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl and 3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl residues attahced at positions 4 and 6 respectively.

Erythromycin: A bacteriostatic antibiotic macrolide produced by Streptomyces erythreus. Erythromycin A is considered its major active component. In sensitive organisms, it inhibits protein synthesis by binding to 50S ribosomal subunits. This binding process inhibits peptidyl transferase activity and interferes with translocation of amino acids during translation and assembly of proteins.
cyclic ketone;
erythromycin
tetrabutylammoniumtetrabutylammonium: lipophilic probe; RN given refers to parent cpdquaternary ammonium ion
phenylguanidinephenylguanidine: RN given refers to parent cpd
pimozidepimozide : A member of the class of benzimidazoles that is 1,3-dihydro-2H-benzimidazol-2-one in which one of the nitrogens is substituted by a piperidin-4-yl group, which in turn is substituted on the nitrogen by a 4,4-bis(p-fluorophenyl)butyl group.

Pimozide: A diphenylbutylpiperidine that is effective as an antipsychotic agent and as an alternative to HALOPERIDOL for the suppression of vocal and motor tics in patients with Tourette syndrome. Although the precise mechanism of action is unknown, blockade of postsynaptic dopamine receptors has been postulated. (From AMA Drug Evaluations Annual, 1994, p403)
benzimidazoles;
heteroarylpiperidine;
organofluorine compound
antidyskinesia agent;
dopaminergic antagonist;
first generation antipsychotic;
H1-receptor antagonist;
serotonergic antagonist
tetrapentylammoniumtetrapentylammonium: RN given refers to parent cpdquaternary ammonium ion
1-methyl-4-phenylpyridinium1-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.

N-methyl-4-phenylpyridinium : A pyridinium ion that is N-methylpyridinium having a phenyl substituent at the 4-position.
pyridinium ionapoptosis inducer;
herbicide;
human xenobiotic metabolite;
neurotoxin
vecuronium bromidevecuronium bromide : The organic bromide salt of a 5alpha-androstane compound having 3alpha-acetoxy-, 17beta-acetoxy-, 2beta-piperidinino- and 16beta-N-methylpiperidinium substituents.

Vecuronium Bromide: Monoquaternary homolog of PANCURONIUM. A non-depolarizing neuromuscular blocking agent with shorter duration of action than pancuronium. Its lack of significant cardiovascular effects and lack of dependence on good kidney function for elimination as well as its short duration of action and easy reversibility provide advantages over, or alternatives to, other established neuromuscular blocking agents.
organic bromide salt;
quaternary ammonium salt
muscle relaxant;
neuromuscular agent;
nicotinic antagonist
topotecantopotecan : A pyranoindolizinoquinoline used as an antineoplastic agent. It is a derivative of camptothecin and works by binding to the topoisomerase I-DNA complex and preventing religation of these 328 single strand breaks.

Topotecan: An antineoplastic agent used to treat ovarian cancer. It works by inhibiting DNA TOPOISOMERASES, TYPE I.
pyranoindolizinoquinolineantineoplastic agent;
EC 5.99.1.2 (DNA topoisomerase) inhibitor
aripiprazolearipiprazole : An N-arylpiperazine that is piperazine substituted by a 4-[(2-oxo-1,2,3,4-tetrahydroquinolin-7-yl)oxy]butyl group at position 1 and by a 2,3-dichlorophenyl group at position 4. It is an antipsychotic drug used for the treatment of Schizophrenia, and other mood disorders.

Aripiprazole: A piperazine and quinolone derivative that is used primarily as an antipsychotic agent. It is a partial agonist of SEROTONIN RECEPTOR, 5-HT1A and DOPAMINE D2 RECEPTORS, where it also functions as a post-synaptic antagonist, and an antagonist of SEROTONIN RECEPTOR, 5-HT2A. It is used for the treatment of SCHIZOPHRENIA and BIPOLAR DISORDER, and as an adjunct therapy for the treatment of depression.
aromatic ether;
delta-lactam;
dichlorobenzene;
N-alkylpiperazine;
N-arylpiperazine;
quinolone
drug metabolite;
H1-receptor antagonist;
second generation antipsychotic;
serotonergic agonist
irinotecancarbamate ester;
delta-lactone;
N-acylpiperidine;
pyranoindolizinoquinoline;
ring assembly;
tertiary alcohol;
tertiary amino compound
antineoplastic agent;
apoptosis inducer;
EC 5.99.1.2 (DNA topoisomerase) inhibitor;
prodrug
n-methylnicotinamideN-methylnicotinamide : A pyridinecarboxamide that is nicotinamide in which one of the amide hydrogens is substituted by a methyl group.

N-methylnicotinamide: structure
pyridinecarboxamidemetabolite
telmisartantelmisartan : A member of the class of benzimidazoles used widely in the treatment of hypertension.

Telmisartan: A biphenyl compound and benzimidazole derivative that acts as an angiotensin II type 1 receptor antagonist. It is used in the management of HYPERTENSION.
benzimidazoles;
biphenyls;
carboxybiphenyl
angiotensin receptor antagonist;
antihypertensive agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor;
environmental contaminant;
xenobiotic
metiprenalinemetiprenaline: RN given refers to parent cpd
levofloxacinlevofloxacin : An optically active form of ofloxacin having (S)-configuration; an inhibitor of bacterial topoisomerase IV and DNA gyrase.

Levofloxacin: The L-isomer of Ofloxacin.
9-fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid;
fluoroquinolone antibiotic;
quinolone antibiotic
antibacterial drug;
DNA synthesis inhibitor;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
topoisomerase IV inhibitor
dabigatrandabigatran : An aromatic amide obtained by formal condensation of the carboxy group of 2-{[(4-carbamimidoylphenyl)amino]methyl}-1-methyl-1H-benzimidazole-5-carboxylic acid with the secondary amoino group of N-pyridin-2-yl-beta-alanine. The active metabolite of the prodrug dabigatran etexilate, it acts as an anticoagulant which is used for the prevention of stroke and systemic embolism.

Dabigatran: A THROMBIN inhibitor which acts by binding and blocking thrombogenic activity and the prevention of thrombus formation. It is used to reduce the risk of stroke and systemic EMBOLISM in patients with nonvalvular atrial fibrillation.
aromatic amide;
benzimidazoles;
beta-alanine derivative;
carboxamidine;
pyridines
anticoagulant;
EC 1.10.99.2 [ribosyldihydronicotinamide dehydrogenase (quinone)] inhibitor;
EC 3.4.21.5 (thrombin) inhibitor
cortisone11-oxo steroid;
17alpha-hydroxy steroid;
20-oxo steroid;
21-hydroxy steroid;
3-oxo-Delta(4) steroid;
C21-steroid;
glucocorticoid;
primary alpha-hydroxy ketone;
tertiary alpha-hydroxy ketone
human metabolite;
mouse metabolite
noscapine(-)-noscapine : A benzylisoquinoline alkaloid that is 1,2,3,4-tetrahydroisoquinoline which is substituted by a 4,5-dimethoxy-3-oxo-1,3-dihydro-2-benzofuran-1-yl group at position 1, a methylenedioxy group at positions 6-7 and a methoxy group at position 8. Obtained from plants of the Papaveraceae family, it lacks significant painkilling properties and is primarily used for its antitussive (cough-suppressing) effects.

Noscapine: A naturally occurring opium alkaloid that is a centrally acting antitussive agent.
aromatic ether;
benzylisoquinoline alkaloid;
cyclic acetal;
isobenzofuranone;
organic heterobicyclic compound;
organic heterotricyclic compound;
tertiary amino compound
antineoplastic agent;
antitussive;
apoptosis inducer;
plant metabolite
ritonavirritonavir : An L-valine derivative that is L-valinamide in which alpha-amino group has been acylated by a [(2-isopropyl-1,3-thiazol-4-yl)methyl]methylcarbamoyl group and in which a hydrogen of the carboxamide amino group has been replaced by a (2R,4S,5S)-4-hydroxy-1,6-diphenyl-5-{[(1,3-thiazol-5-ylmethoxy)carbonyl]amino}hexan-2-yl group. A CYP3A inhibitor and antiretroviral drug from the protease inhibitor class used to treat HIV infection and AIDS, it is often used as a fixed-dose combination with another protease inhibitor, lopinavir. Also used in combination with dasabuvir sodium hydrate, ombitasvir and paritaprevir (under the trade name Viekira Pak) for treatment of chronic hepatitis C virus genotype 1 infection as well as cirrhosis of the liver.

Ritonavir: An HIV protease inhibitor that works by interfering with the reproductive cycle of HIV. It also inhibits CYTOCHROME P-450 CYP3A.
1,3-thiazoles;
carbamate ester;
carboxamide;
L-valine derivative;
ureas
antiviral drug;
environmental contaminant;
HIV protease inhibitor;
xenobiotic
quinidinequinidine : A cinchona alkaloid consisting of cinchonine with the hydrogen at the 6-position of the quinoline ring substituted by methoxy.

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.
cinchona alkaloidalpha-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
2-(4-chlorophenyl)guanidineorganochlorine compound
maraviroctropane alkaloid
quininecinchona alkaloidantimalarial;
muscle relaxant;
non-narcotic analgesic
dinoprostoneprostaglandin E2 : Prostaglandin F2alpha in which the hydroxy group at position 9 has been oxidised to the corresponding ketone. Prostaglandin E2 is the most common and most biologically potent of mammalian prostaglandins.prostaglandins Ehuman metabolite;
mouse metabolite;
oxytocic
dinoprostDinoprost: A naturally occurring prostaglandin that has oxytocic, luteolytic, and abortifacient activities. Due to its vasocontractile properties, the compound has a variety of other biological actions.

prostaglandin F2alpha : A prostaglandins Falpha that is prosta-5,13-dien-1-oic acid substituted by hydroxy groups at positions 9, 11 and 15. It is a naturally occurring prostaglandin used to induce labor.
monocarboxylic acid;
prostaglandins Falpha
human metabolite;
mouse metabolite
fosbretabulinstilbenoid
indinavir sulfateIndinavir: A potent and specific HIV protease inhibitor that appears to have good oral bioavailability.dicarboxylic acid diamide;
N-(2-hydroxyethyl)piperazine;
piperazinecarboxamide
HIV protease inhibitor
enalaprilenalapril : A dicarboxylic acid monoester that is ethyl 4-phenylbutanoate in which a hydrogen alpha to the carboxy group is substituted by the amino group of L-alanyl-L-proline (S-configuration).

Enalapril: An angiotensin-converting enzyme inhibitor that is used to treat HYPERTENSION and HEART FAILURE.
dicarboxylic acid monoester;
dipeptide
antihypertensive agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor;
geroprotector;
prodrug
penicillin v1,1'-diethyl-2,2'-cyanine;
quinolines
famotidine1,3-thiazoles;
guanidines;
sulfonamide
anti-ulcer drug;
H2-receptor antagonist;
P450 inhibitor
chlorhexidinechlorhexidine : A bisbiguanide compound with a structure consisting of two (p-chlorophenyl)guanide units linked by a hexamethylene bridge.

Chlorhexidine: A disinfectant and topical anti-infective agent used also as mouthwash to prevent oral plaque.
biguanides;
monochlorobenzenes
antibacterial agent;
antiinfective agent
m-chlorophenylguanidine
dolutegravirdifluorobenzene;
monocarboxylic acid amide;
organic heterotricyclic compound;
secondary carboxamide
HIV-1 integrase inhibitor
cyanine 863