Use of High-Performance Liquid Chromatography To Study the Pharmacokinetics of Colistin Sulfate in Rats following Intravenous Administration

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American Society for Microbiology

RESUMO

The pharmacokinetics of colistin was investigated using specific high-performance liquid chromatography (HPLC) to measure the concentrations of colistin and colistin A and B in plasma and urine in five rats after administration of an intravenous bolus of 1 mg of colistin sulfate/kg of body weight. There were differences in the pharmacokinetic behaviors of unbound colistin A and B. This is the first report of the use of HPLC to study the pharmacokinetics of colistin and its two major components.

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