I take 200mg a day (100mg in the morning and 100mg at night) for seizures. It has been my miracle drug. Granted the side effects were awful. But I did my research before starting it again. I had taken it previously for migraines and couldn't tolerate it. If you take the appropriate vitamins while taking it you can help to alleviate a lot of the side effects that you may have. Topomax can absorb some critical vitamins out of your body which causes some of the side effects. The vitamins that I take are: a high dosage of a Super B Complex (tingling, numbness, fatigue, speech). L-Carnitine (memory loss), Biotin (hair and skin). There is another website with postings similar to this which is where I discovered other patients taking Topomax that had discovered using the vitamins helped. Once I got on a good regimen of vitamins it made a big difference. I still experienced and am experiencing weight loss (but I just had a baby) so I am not really upset about that. LOL Anyways, I hope that information helps someone out there. It sure did help me. If I can find the research link that had the vitamin listing that it depreciates I will post it.