Irritable Bowel Syndrome
"Combined with a fiber supplement like Metamucil I find that Levsin really helps with the trapped gas pains I get with my irritable bowel syndrome. I get sharp stabbing pains in the upper left quadrants that will only be relieved hours later after the trapped gas finally leaves.  Heating pad and having my girlfriend push on my stomach also can help, but since starting the Levsin my number of pain days is significantly down.  Does cause fatigue though, and be careful with beers as it will make you even more tired."