Jmb. Musser et al., PHARMACOKINETIC PARAMETERS AND MILK CONCENTRATIONS OF KETOPROFEN AFTER ADMINISTRATION AS A SINGLE INTRAVENOUS BOLUS DOSE TO LACTATING GOATS, Journal of veterinary pharmacology and therapeutics, 21(5), 1998, pp. 358-363
Six clinically normal lactating does were administered ketoprofen (2.2
mg/kg intravenously (i. v.)), Blood and milli samples were collected
prior to and for 34 h after drug administration, Drug concentrations i
n serum and mill; were determined by high performance liquid chromatog
raphy. Pharmacokinetic parameters from each goat were combined to obta
in mean estimates (mean +/- SD) of half-life of elimination (t(1/2 bet
a)) of 0.32 +/-14 h, systemic clearance (Cl) of 0.74 +/- 0.12 L/kg.h,
and volume of distribution at steady state (V-ss,) of 0.23 +/- 0.051 L
/kg. In milk ketoprofen was unmeasurable by the method employed (level
of detection 25 ng/mL) for all samples.