Hmm...it's probably not the Colpermin having that effect. If you had any side effects from that, it might be a twinge of heartburn, but even that is relatively unlikely to happen. It might just be a naturally occurring phenomenon due to having IBS. If it's helping with the gas, stick with it. Do you take a fiber supplement at all? I've read a lot of good studies on calcium polycarbophil (in the U.S. we have a brand called "FiberCon") that alleviates both D and C, so you might want to try that!
Co-moderator - IBS Forum