You might like to check with your doctor about the Ensure. I use something similar (enteral feed) and was told that *one* serving on the day before doing the prep would be ok, just not many servings. However, that was what they told me, and it may not be applicable to you.
I've no definitive answers for you on the Imodium, but I'm guessing that you shouldn't take any more of it until after the c'scopy. If you're anything like me it *hurts* to have the prep inside you, and the sooner you can get it out the better.
Co-Moderator Crohn's Forum.