"my doc prescribed this for after having colitis. it dulls the pain but for 2 months had the worst constipation (with colace) and groin pain i ever had in my life. went to 5 docs and had over $1500 in ct scans and ultrasounds for pain. doc misled me and said take it 24hrs a day. after about 2 weeks of agonizing pain, i came off it on my own. no pain! be very careful."