the acute effect of oral administration of a single dose of vigabatrin , a new antiepileptic drug which acts by irreversible enzyme-activated inhibition of the brain enzyme , gaba-aminotransferase , on the photoconvulsive response in patients with photosensitive epilepsy , was compared with that of the established antiepileptic drug , sodium valproate .
C0003299
antiepileptic drug
C0037567
sodium valproate