I haven't done the prep with the Miralax however when I did the prep with the pills, I started taking them at 2pm and every fifteen minutes after that for about
1 hour and a half (I think). And then I took the Dulcolax at 7pm. I was cleaned out around 10pm. Once there is nothing else in there, you won't be able to go anymore anyway. Had no problems in the morning. I did have to go after I ate after the scope because the laxative was still effective so make sure when you finally eat that you are at a place where you can use the bathroom comfortably. I didn't have any cramping just extreme urgency through the whole thing. Remember eat very light the day before and try to avoid any fattening foods or difficult/long digesting foods.
Co-Moderator ~ IBS Forum
Dx: IBS 1989, Diverticulosis 2004, Idiopathic Acute Colitis 2006, UCTD 2007
Meds: Plaquenil 400mg, Chlorzoxazone 500mg, Lyrica 50mg, Protonix 40mg, Naproxen 1000mg, Xanax XR 2mg, Miralax 17g, Supplements