"I suffer from chronic constipation and then severe diarrhea. I had to take the golytely for a colonosopy. It was awful!! They told me to start taking laxatives on Friday.I had to take  2 on Friday,  Saturday and 2, 2 hours before the prep. So I only had 3 glasses before it happened! Lol! The directions said to stop once the stool was clear. It worked very well I only had to drink half if it (thank god!) I had severe nausea and close to emesis each time I had to drink that foul drink! I will never do it again they better get what they need!"