Most of the studies addressing antiepileptic drug effects on the mitochondria discuss the effect of valproic acid. The exact mechanisms involved in the drug-induced effects on oxidative phosphorylation are still far from being resolved. Most of the studies investigated the effect of valproic acid by using animal models or different in vitro methods.Mitochondrial diseases should be considered as a risk factor for valproic acid-induced hepatotoxicity, and there is a consensus for avoiding the administration of the drug for these patientsIs it possible that other antiepileptic drugs have similar effects? The knowledge regarding the effects of other antiepileptic drugs on the mitochondria is relatively scarce.