200 mg a day since April 2002, dont know if my visual problems have anything to do with Topamax or not. my visual field is effected. Will know more after further testing. Pressure is great. Tremors under both eyes now. Tingling in hands once in awhile now. Nothing like at first. Headaches much better once a month or every two months. Weight loss was great. Keeping it off. taste buds changed. Couldn't taste much at first. Over salted everything. I can drink soda now. Diet soda doesn't taste good at all. I drink juice now. Water it down. Short term memory lost still is a problem.