irritable bowel syndrome
"This has worked very well for me.I Still have bouts now and then, but nothing like before the medication. I take 25 mg per day. If I am having cramps and/or frequent loose stools, I'll take an additional 12.5 mg (split a 25mg tab) during the day. I take the 25 at night, which also aids in sleep. Only negative side affect is some mild to moderate urine retention. This is in part due to also having BPH. But the goods  outweigh the negatives."