It depends on the person and what works for them. To be honest a lot of people I have seen that are on more one med end up on 4-5 sometimes even more meds. So its ether you taking multiple different meds which would not lower side effects at all or you are on 1 or most of the time two meds and you work with what you have.

Personally, I have always been on two when it was Topamax and Tegretol the meds were both considered to be at max dosages. At the moment I'm not on Tegretol and I'm on Keppra so overall my dosage is considered nowhere near its limit.

I was a test patient on Tegretol in the 70’s. I was titrated off Dilantin in the the study. It worked great in the study. I stayed on the medication thru college but while having children things changed. My blood had trouble clotting. It occurred around 1992. I started having status attacks, I was on phenobarbital. I was on Carbitrol. I was on Klonopin. They kept putting me on combinations. Now I am on the best Xcopri, Breviac and Zonegran. Everyone will be put on the best medication for their body! Some people it will be short others a long time.