I was on Topomax for a month and had really bad side effects from it. I could barely eat anything, it made me depressed and I couldn't think at all, as it I had a hard time remembering how to get home once and I was on the lowest dose of it. Now I am on Remeron which is an antidepressant. I am taking half of the smallest dose pill they make and I still feel lazy all day. When I took a whole dose, I could have sat and looked at a blank wall all day. Last night I took 1/4 of a pill (half of my normal dose) and had a headache this morning.
At least it works so I will focus on that for now. It is better than taking the migraine pills after the migraine occurs.