Inclusion Criteria:  Provision of signed and dated informed consent form Stated willingness to comply with all study procedures and availability for the duration of the study Male or female, aged 18 or greater Hospitalized patient scheduled to undergo colonoscopy with bowel preparation (not including preparation with enemas alone) Ability to take bowel preparation and be willing to adhere to the regimen  Exclusion Criteria:  Patients presenting to the hospital with ileus, toxic megacolon, evidence of gastrointestinal obstruction Receipt of bowel preparation for other reasons during their hospitalization prior to their colonoscopy Patients with prior significant gastrointestinal surgeries including colonic resection, subtotal colectomy, abdomino-perineal resection, Hartmann's procedure or other similar surgeries involving structure/function of small intestine or colon Unable to give informed consent to the procedure Known glucose-6-phosphate dehydrogenase deficiency Known phenylketonuria Known hypersensitivity to polyethylene glycols or ascorbic acid Patients undergoing colonoscopy for foreign body removal and/or decompression Pregnancy or lactating women