amate, and benzodiazepines such as diazepam and chlordiazepoxide; anticonvulsants such as primidone, enitabas, phenytoin, ethyltion, pheneturide and ethosuximide; muscle relaxants and antiparkinson agents such as mephenesin, methocarbomal, cyclobenzaprine trihexylphenidyl, levodopa/carbidopa, and biperiden; antihypertens