For everyone that has taken topamax and for the ones that lost weight (the side effect) how long did it take you? I’m asking because I just realized I did not lose weight right away when I started taking it. I’ve been on it probably closer to 2… months almost now? I checked my weight on the scale today and it’s gone down more than ten pounds! and i’m seeing the stretch marks under my arms so it’s a pretty rapid change. Before that it was staying at a consistent weight. So, i’m wondering if this side effect is just now starting to take effect for me.