Pharmacokinetics and metabolism of14C isobytylnaphtyl acetic acid in rat
| Autor: | H. J. Hausleiter, G. Achtert, C. Jacquot, E Payan-Lepain, M. O. Christen, F. Borchers |
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| Rok vydání: | 1989 |
| Předmět: |
Male
Metabolite Administration Oral Urine Absorption (skin) Naphthaleneacetic Acids Feces chemistry.chemical_compound Acetic acid Pharmacokinetics Oral administration Animals Bile Distribution (pharmacology) Tissue Distribution Pharmacology (medical) Biotransformation Pharmacology Chromatography Rats Inbred Strains Blood Proteins Metabolism Rats Intestinal Absorption chemistry Biochemistry Injections Intravenous Chromatography Thin Layer Half-Life Protein Binding |
| Zdroj: | European Journal of Drug Metabolism and Pharmacokinetics. 14:249-256 |
| ISSN: | 2107-0180 0378-7966 |
| DOI: | 10.1007/bf03190107 |
| Popis: | After oral administration to rats, absorption of INAA was slow but complete. Plasma level curves reached a plateau for INAA as well as for the two metabolites, which were rapidly formed (MI and Mil). The plateau concentration led to an increase of the apparent elimination half — life, which was short after i.v. administration due to the small volume of distribution and to the high rate of metabolism. In any case the half — life was independent of the dose and the pharmacokinetics of INAA remained linear from 1.5 to 15 mg/kg. The two rapidly formed plasma metabolites were eliminated more slowly than INAA. INAA and its metabolites were distributed only sparsely in all tissues under investigation, probably due to the high protein binding. Both routes of administration resulted in elimination of the radioactivity mainly by the urine. Besides the two main metabolites with known structures (MI and Mil) small amounts of INAA and two additional metabolites were detected. |
| Databáze: | OpenAIRE |
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