I Was Diagnosed With Gran Mal Eliptic Seziures When I

I was diagnosed with gran mal eliptic seziures when i was 14 i am now 64. my neurologist died 10 years ago and i was just now ABLE TO get another one but the only thing that has held me all these years is mysoline 250 mg 3x a day. now this dr wants me to take levetiraCEtam generic name for keppra 500mg with my mysoline 250 mg and he will get me off the mysoline. i am from the old school if it ain't broke don't fix it. i have severe allergic reactions to all types of drugs and i can only take extra strength tylenol for pain everthing else puts me into cardic arrest is it going to be safe to take this drug with my mysoline, tylenol an baby aspirin?