How long after a colonoscopy does diarrhea last?

I would go ahead and take the Immodium. Otherwise you'll probably have it until tomorrow. My dad has colonoscopies like 2x a year because of celiac and never took laxatives along with the golytely, maybe that's why you're still going. My grandma said hers was extremely painful and she cried. They didn't give her enough anesthestics. Maybe you didn't get enough? The same doctor who did hers did my dad's and he doesn't remember anything.