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Ibopamine, an orally active dopamine-like drug: metabolism and pharmacokinetics in dogs. 1986

F Pocchiari, and R Pataccini, and P Castelnovo, and A Longo, and M Paro, and C Casagrande

Ibopamine (SB-7505), the 3,4-diisobutyryl ester of N-methyldopamine (epinine), exerts, on oral administration, cardiovascular effects similar to those of intravenously infused dopamine. Plasma levels and urinary excretion of metabolites were investigated in dogs after oral administration of 4 mg/kg of ibopamine hydrochloride. Epinine, which was readily formed from ibopamine by esterases hydrolysis, was present in plasma in free and sulphate-conjugated form. The urinary metabolites after 6 h from the administration amounted to 62% of the dose, as a sum of 37% of epinine 3-O-sulphate, and 15 and 10% of 4-hydroxy-3-methoxyphenylacetic acid and 3,4-dihydroxyphenylacetic acid, respectively, both in free and conjugated form. When the main metabolite, epinine 3-O-sulphate, was administered intravenously it appeared to be excreted in urine without being deconjugated to any detectable extent, while it appeared to be partially deconjugated on oral administration.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008297 Male Males
D003846 Deoxyepinephrine Sympathomimetic, vasoconstrictor agent. Deoxyadrenaline,Desoxyadrenaline,Methyldopamine,Desoxyepinephrine,Epinine
D004232 Diuretics Agents that promote the excretion of urine through their effects on kidney function. Diuretic,Diuretic Effect,Diuretic Effects,Effect, Diuretic,Effects, Diuretic
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D004298 Dopamine One of the catecholamine NEUROTRANSMITTERS in the brain. It is derived from TYROSINE and is the precursor to NOREPINEPHRINE and EPINEPHRINE. Dopamine is a major transmitter in the extrapyramidal system of the brain, and important in regulating movement. A family of receptors (RECEPTORS, DOPAMINE) mediate its action. Hydroxytyramine,3,4-Dihydroxyphenethylamine,4-(2-Aminoethyl)-1,2-benzenediol,Dopamine Hydrochloride,Intropin,3,4 Dihydroxyphenethylamine,Hydrochloride, Dopamine
D006719 Homovanillic Acid A 3-O-methyl ETHER of (3,4-dihydroxyphenyl)acetic acid. 3-Methoxy-4-Hydroxyphenylacetic Acid,4-Hydroxy-3-Methoxyphenylacetic Acid,3 Methoxy 4 Hydroxyphenylacetic Acid,4 Hydroxy 3 Methoxyphenylacetic Acid,Acid, 3-Methoxy-4-Hydroxyphenylacetic,Acid, 4-Hydroxy-3-Methoxyphenylacetic,Acid, Homovanillic
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001711 Biotransformation The chemical alteration of an exogenous substance by or in a biological system. The alteration may inactivate the compound or it may result in the production of an active metabolite of an inactive parent compound. The alterations may be divided into METABOLIC DETOXICATION, PHASE I and METABOLIC DETOXICATION, PHASE II.
D015102 3,4-Dihydroxyphenylacetic Acid A deaminated metabolite of LEVODOPA. DOPAC,Homoprotocatechuic Acid,3,4-Dihydroxyphenylacetic Acid, Monosodium Salt,3,4 Dihydroxyphenylacetic Acid

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