a common methodology is reported for the determination of five major anticonvulsants ( carbamazepine , ethosuximide , phenobarbital , phenytoin , primidone ) and their active metabolites ( carbamazepine-10,11-epoxide , phenylethylmalonamide ) in 30 microliters of plasma .
C0031412
phenobarbital
C0033148
primidone