Movantik
"I've had very severe constipation for years due to my daily need for oxycodone and morphine. I've tried everything with little relief so that's why I gave this a try. It was the worst day of my life! I took it first thing in the morning on an empty stomach. About 30 mins after taking it I had a bowel movement...yeah right? About 2 mins after I started having SEVERE intestinal cramps! So bad I could hardly breathe! I also got severe chills and had goose bumps all over my body. I continued to have a bowel movement every 15-20 mins for the next 3 hours. The whole time having extremely painful cramping, nausea, sweats, chills, goosebumps... It cleaned me out that's for sure. But it was not worth the pain and it wiped me out the whole day!!"