phenobarbitone ( pb ) and primidone ( prm ) plasma concentrations were measured in 88 patients of both sexes with different types of epilepsy and treated with prm , alone or in association with carbamazepine ( cbz ) , phenytoin ( pht ) , ethosuximide ( esm ) or valproic acid ( vpa ) .
C0031412
phenobarbitone
C0033148
prm