drugs.com is a really good place to get med info. But to the original question, I was on topamax for almost a year. My old doc had me on it for bipolar2 but it seems I am not bipolar so the med didnt work on me. But it did make me feel like a zombie. I had the tingley toes and also tingley scalp. It made me lose altogether 10 pounds. And yes you have to drink your daily amount of water with it. I know quite a few people who have had sucsess on it for migraines and mood swings. I don't have mood swings but I have migraines and it did help those. I had leg twitching but nothing bad or noticible to anyone but me. ANd if you do go online to read side affects remember that they have to put down every possible side affect. I don't read side affects myself for the reason that f I do, I will have everyone of them. I hope this works for you. Oh yeah and it gives you super dry mouth.