Efficacy and Safety Study of Sodium Phosphate Tablets vs PEG for Bowel Cleansing

Inclusion Criteria: * Men and women aged from 18 to 75 years (included). * Scheduled for a colonoscopy as an outpatient. * Normal renal function Exclusion Criteria: * Having a disease or condition as follows: * repeated episodes of nausea and vomiting * abdominal pain due to severe infection or requiring surgery * clinically significant abnormal electrolytes values * congestive heart failure, unstable angina pectoris or recent myocardial infarction, percutaneous transluminal coronary angioplasty (PTCA) or coronary artery bypass surgery within previous 3 months * known/suspected bowel obstruction, megacolon, ileus or intestinal perforation, or gastroparesis, * inflammatory bowel disease, * history of gastric stapling or bypass procedure or gastric retention * Sodium phosphate preparation taken within the past three weeks prior to colonoscopy. * Known allergy to any of the active ingredients or excipients of the study drugs. * History of phenylketonuria