constipation, chronic
"Diagnosed with IBS-C a few years ago. This is the only medication that has helped. I don't take it daily because of the cost but it's been just as effective every other day. 

The first two weeks it caused severe diarrhea within an hour of taking it but then it calmed down to regular bowel movements once a day which is a far cry better than the once a week I experienced before the medication."