MoviPrep is a prescription medicine a person drinks before a colonoscopy. The liquid, polyethylene glycol (also called PEG), flushes waste from the colon, allowing the physician to get a clear view of the colon wall during the colonoscopy procedure. Drinking this liquid before the colonoscopy is called the bowel preparation (bowel prep) or colonoscopy preparation (colon prep).
There are several liquid PEG bowel preps available, but many require people to drink 4 liters of the prep solution. MoviPrep is different, because it only requires them to drink 2 liters of the prep solution. While it requires the patient to drink less solution, MoviPrep is similar in its effectiveness to 4–liter liquid preps.
Many PEG colon–prep regimens are plagued by bad–tasting liquids, but 86% of people who took MoviPrep rated the taste "acceptable" or "satisfactory."1 MoviPrep also does not require the use of bisacodyl tablets, thus avoiding bisacodyl–associated abdominal cramping.
You can also ask a pharmist questions as well.
Hopefully you be fine and it won't be too bad.