constipation
"I used Dulcolax for Women. Gentle it said, HAHA. The package said takes 6/12 hrs. 
It DID NOT take that long, I began to feel the effects from 1 pill after just 2 hrs. I had been constipated for 4 days. At 2 hrs, my stomach began to hurt (took w/ food), my chest began to hurt from my pulse racing, then my back started to hurt from my horrible stomach pain. I was worried. At the 4 hr mark, I was in the bathroom, the first time was ok, so I thought problem solved. Oh no, 15 mins later I started having horrible abdominal cramps and ran to the bathroom, for a 10 minute stay. Then 15 mins after that I was in the bathroom for what I can only describe as horrific and the most intense/never-ending bowel movement of my life. Don't count on 6/12 hrs"