the fast-lc system ( technicon instruments ) was used for the assay of mixtures of 1 ) acetaminophen , theophylline , and/or caffeine , or 2 ) phenylethylmalonamide , primidone , phenobarbital , carbamazepine epoxide , phenyltoin , and/or carbamazepine .
C0033148
primidone
C0031412
phenobarbital