I used to take topirmate/ topamax 15mg a day. I lost around 30 lbs while on it. (Weight loss was a side effect, it was not the reason I was taking it). But now I am off of it and petrified I am going to gain the weight back. My family (who all are obese) are telling me I am going to gain the weight back, but I don't know if it's jealousy because even before the pill i was a healthy weight. I have already gained five pounds but that could be do to my vacation, and not watching what I'm eating. Does anyone know if you gain weight back. Being a female it's important I don't.