I used Topamax for years without any adverse side effects. It helped me so much! It greatly cut down on the frequency of my migraines. I was on a high dose of it for many years and I ended up coming off of it recently because it no longer helped me
Most people get tingling hands and/or feet for the first couple of weeks when they start taking it. My Neurologist told me to eat a kiwi a day during that time and it would stop. It was the extra potassium and amazingly it worked!! It can also cause nausea, but that goes away. It helps to start on a very low dose and gradually increase it. Some complain about it making them feel dopey, calling it dopamax...I luckily didn't have that problem
Nanc