Thiamphenicol disposition in pigs

G. Castells, C. Prats, G. El Korchi, B. Pérez, M. Arboix, C. Cristòfol, G. Martì

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11 Citations (Scopus)


Pharmacokinetic parameters of thiamphenicol (TAP) were determined after intravenous (i.v.) and intramuscular (i.m.) administration of 30 mg kg-1 of TAP in pigs. Plasma drug concentrations were determined by high performance liquid chromatography (HPLC) Intravenous TAP kinetics were fitted to a bi-exponential equation, with a first rapid disposition phase followed by a slower disposition phase. Elimination half-life was short, at 59.3 (29.4) minutes; volume of distribution at steady state was 0.62 (0.24) 1 kg-1; and plasma clearance was 13.4 (4.5) ml min-1 kg-1. After i.m. administration, the peak plasma concentration (C(max) = 4.1 μg ml-1) was reached in about 60 minutes; these concentrations are lower than those reported in other species. The TAP elimination half-life after i.m. administration, 250.2 (107.1) minutes was longer after than i.v. administration, probably due to the slow rate of absorption from the muscle. The mean bioavailability value for i.m. administration was 76 (12) per cent.
Original languageEnglish
Pages (from-to)219-222
JournalResearch in Veterinary Science
Publication statusPublished - 1 Jan 1999


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