Effect of ketoprofen on intravenous pharmacokinetics of ganciclovir in chukar partridges (Alectoris chukar)

Abstract

The aim of the study was to determine the effect of ketoprofen (2 mg/kg) on the intravenous pharmacokinetics of ganciclovir (10 mg/kg) in chukar partridges (Alectoris chukar). Eight clinically healthy partridges were used in the study. The study was performed in two periods using a cross-over design following a 15-day drug washout period. Plasma concentrations of ganciclovir were determined using the high-pressure liquid chromatography-ultraviolet detector and analyzed by non-compartmental analysis. The elimination half-life (t(1/2 lambda z)), area under the concentration-time curve (AUC(0-infinity)), total body clearance, and volume of distribution at steady state of ganciclovir were 1.63 h, 33.22 h*mu g/ml, 0.30 L/h/kg, and 0.53 L/kg, respectively. Ketoprofen administration increased the t(1/2 lambda z) and AUC(0-infinity) of ganciclovir by 78% and 108%, respectively, and while decreased Cl-T by 53%. The increased plasma concentration and prolonged elimination half-life of ganciclovir caused by ketoprofen may result in the prolonged duration of action and therapeutic effect of ganciclovir. However, the concomitant use requires determination of the pharmacokinetics of ketoprofen and the safety of both drugs.