Long‐lasting Antiepileptic Effects of Levetiracetam against Epileptic Seizures in the Spontaneously Epileptic Rat (SER): Differentiation of Levetiracetam from Conventional Antiepileptic Drugs

Abstract

These results show that LEV is effective in the treatment of both convulsive and absence-like seizures in SERs after single- and multiple-dose administration. Interestingly, in the 5-day administration study, it was found that the antiepileptic effects for tonic convulsions and absence-like seizures were observed both during the drug-administration period and <or=8 days after the final administration of LEV. This long-lasting effect suggests that LEV may possess an antiepileptogenic effect that it does not share with PHT, PB, VPA, and CBZ.