Pharmacokinetics of the new antiepileptic drug galodif was experimentally studied on rats. A single administration of the anticonvulsant is followed by slow elimination. A five-day administration leads to a significant acceleration of the drug elimination due to activation of the cytochrome P-450 dependent monooxygenase system of liver. After a 14-day administration, the elimination rate decreases as compared to that for the five-day treatment, while being still higher than in the case of single administration.