Author(s): Tsai TH, Shum AY, Chen CF
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Abstract A system consisting of a hepato-duodenal shunt in which the bile of a drug-treated donor rat was diverted to the duodenum of an untreated recipient rat via a bile cannula was used to assess the role of hepatic metabolism and enterohepatic circulation in the pharmacokinetics of chloramphenicol. Blood concentrations of unbound chloramphenicol and its glucuronide were measured by on-line microdialysis coupled to a microbore liquid chromatographic system. Results indicated that chloramphenicol and its glucuronide were detected in the blood of both donor and recipient rats following an intravenous 100 mg/kg dose of chloramphenicol succinate to the donor rat. Our finding suggests that although enterohepatic circulation contributed only to a minor extent (approximately 1.8\%) was involved in the disposition of unbound chloramphenicol in the rat on-line microdialysis techniques were applicable for such studies.
This article was published in Life Sci
and referenced in Pharmaceutica Analytica Acta