subjects with a normal liver undergoing treatment with enzyme-inducing drugs , such as phenytoin , phenobarbital and primidone , had higher hdl cholesterol , apoproteins a-i and a-ii , hdl cholesterol/total cholesterol ratio , cytochrome p-450 and antipyrine clearance rate than subjects not receiving such therapy .
C0031412
phenobarbital
C0033148
primidone