Hi pega
You do not need to remember dosage for Fpgee. You should know the common side effects of particular class of drugs, containdications. And major side effect of a particular drug like phenytoin causes gingival hyperplasia, and hirsutism.
Visit
In Vitro Technologies and print out that page. Chekout substrates of CYP1A , CYP2D6, CYP3A. Memorise rifampin, phenytoin, barbiturates amiodarone,cimetidine alcohol , smoking. As majority of these are inducers or inhibitors of each class. if you will see again and again, you will memorise it easily.