The prep is worse than the procedure.  Split dosing and some new liquids may make bowel cleansing needed for colonoscopy a bit easier and perhaps more palatable.
D002400:Cathartics / Q000008:administration & dosage / Q000009:adverse effects*; D003113:Colonoscopy / Q000379:methods*; D004334:Drug Administration Schedule; D005421:Flavoring Agents; D006801:Humans; D008403:Mass Screening; D010349:Patient Compliance; D010353:Patient Education as Topic; D017410:Practice Guidelines as Topic
D002400:Cathartics; D005421:Flavoring Agents