Hello, I agree with the other posts that topamax isn't likely the cause. You might want to see about getting your doctor to check a Thyroid level, a Fasting Blood Sugar, and an A1C, on you because Hypothyroidism, or Diabetes very well could be the culprit. I Hope This Helps! Good Luck and God Bless Brenda
topamax shouldnt cause you to gain weight at all i was on it for a while and lost like 40 lbs never gained any of it back either you should talk to your dr about it
side effect of topamax is loosing weight. should not cause gain at all. you may want to look at other factors