Various preparation methods are used. Several different types of laxatives can clear the bowel of stool ... under the brand name MiraLax and as a generic in many drugstores.
2-l PEG-3350 powder plus bisacodyl (10 mg) or 2-l PEG-3350 powder with lubiprostone (24 µg). Four liter PEG preparation was more effective at bowel cleansing (average Ottawa score: 5.1 ...