comparison of pharmacokinetics of antiepileptic drugs showed that some drugs were suited for maintenance therapy in dogs ( primidone , phenobarbital , ethosuximide , trimethadione ) whereas others appeared not to be ideally suited because of their short half-lives ( phenytoin , carbamazepine , valproic acid , diazepam , clonazepam , nitrazepam ) .
C0003299
antiepileptic
C0031507
phenytoin