Simulation of lindane kinetics in rats.

The kinetics of lindane were modelled in the male rat with a physiologically-based pharmacokinetic (PB-PK) model. The model was parameterized by using reference physiological parameter values and partition coefficients that were reported earlier in the literature. First order biotransformation and gastro-intestinal absorption constants for lindane were obtained by visually fitting the model to literature data on lindane disposition in vivo after a single oral dose. The model was validated by simulating the disposition of lindane in vivo after single intraperitoneal and chronic oral dosage and comparing simulated with experimental results. It was concluded that the present model can adequately simulate most of the reported data on lindane kinetics.