Pharmacokinetics of centperazine: a new antifilarial agent

Blood concentration compared with time profile of centperazine, obtained after intravenous injection of a 5 mg/kg dose in male albino rats, was analysed for various parameters. The data could be interpreted best in terms of the three compartment open model system. The drug exhibited 4.4 h of half-life, with an elimination constant of 1.65. Values for the area under curve and distribution volume were determined as 14.62 micrograms h/ml and 438 ml respectively. Only 10% of centperazine present in the central compartment was available for elimination at any one time. Mean plasma clearance value was found to be 72.87 ml/h/kg body weight.