I went on Topomax when I was on Zyprexa 20mg a day and 70lbs overweight. My Topomax dosage was 200mg of Topomax. I felt foggy brained, and lost about 5lbs after a few weeks, but that was all the weight loss I ever got out of it. Whether it stopped me from CONTINUING to gain weight on the Zyprexa, I will never know.

I am taking 150mg of Topomax right now, along with Saphris, another AAP. I am not having any weight gain. But the Topomax makes me a little dopey. I've never felt that it made me sleepy.

That about sums up my experience with it. Best of luck to you with it!