irritable bowel syndrome
"I've had Irritable Bowel Syndrome for 11 years, and for almost the entire time, this was the medication I was on. It worked great at first, but then I started having to take double doses (which at least helped with nighttime problems, as it made me extremely drowsy). Eventually, it had no effect on my pain whatsoever, and I only experienced the side effects. I've switched to Librax, which has given me limited results. This medication was a life-saver for years with very fast results, but I guess it just stopped working for me."