The patient is allergic (hypersensitive) to Macrogol (P.E.G. = polyethylene glycol) or any of the other excipients. The patient has any intestine or colon disease (such as ulcerative colitis, Crohn's disease). The patient has abdominal pain of undetermined cause. The patient has or suspect a gastrointestinal perforation. The patient has or suspect a bowel obstruction (Ileus).