Overview HalfLytely Bowel Prep System for Colonoscopy Status: Completed Trial end date: 1969-12-31 Target enrollment: Participant gender: Summary The purpose of the this study was to compare the safety and efficacy of HalfLytely (2L NULYTELY + 20mg bisacodyl) to NULYTELY for preparation prior to colonoscopy. Phase: Phase 3 Details Lead Sponsor: Braintree LaboratoriesTreatments: Polyethylene glycol 3350