PMID: 6111430Jan 1, 1981Paper

Analysis of iosulamide in plasma and urine: application to intravenous pharmacokinetics in rhesus monkey

Drug Metabolism and Disposition : the Biological Fate of Chemicals
G B ParkJ Edelson

Abstract

A sensitive, specific, high-performance liquid-chromatographic method for the determination of iosulamide in plasma and urine is described. The method was used to determine pharmacokinetic parameters of iosulamide after intravenous administration to rhesus monkeys. The mean (+/- SE) distribution and disposition half-lives were 0.19 (+/- 0.03) and 1.5 (+/- 0.3) hr, respectively. The mean (+/- SE) model-dependent and model-independent volumes of distribution at steady state were 0.41 +/- (0.078) and 0.49 (+/- 0.039) liters/kg, respectively. Total urinary excretion of iosulamide represented a mean (+/- SE) of 12.5 (+/- 0.6)% of the administered dose and was virtually complete in 3 hr. The results of the pharmacokinetic study indicate that iosulamide is rapidly cleared from the body and that renal clearance is a minor route of elimination from the body.

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