I have had horrible diarrhea for the past month. My doctor is going to perform a colonoscopy in a month to determine what the underlying problem is. However in the meantime he prescribed me Welchol to treat the diarrhea. It was worked very effectively. I am using a dose of 2 pills taken with each meal. I no longer have to run to the bathroom 15+ times per day. I am down to about 4 times daily and I can take my time in finding a bathroom, its great.