I lasted a whole week with Topamax! Side effects I experienced were flat, bitter tasting soft drinks, minor tingling in hands and forearms, some dizziness, and some decreased sensation during sex. But on day 6, shortness of breath set in. I wasn't aware that this was a side effect of topamax until I searched the internet. I'm so grateful for all of the posts here. On day 7, I took my last 25mg topamax and expected my breath to return to me. That was 6 days ago and I'm still waiting.... I've read that it takes 6 days for topamax to clear your system, but I'm eager to hear of accounts as to how long it took for side effects to disappear. Can anyone throw me a bone?? I keep telling myself that tomorrow it will be better, but "tomorrow" hasn't come. All other side effects are gone.