The high incidence for colon cancer make it an ideal target for screening. In the United Staes there are approximately 100,00 new cases of colon cancer yearly. Typically the progression from polyps to cancer requires years. This permits a screening procedure to identify polyps befoere they are cancerous. Colon cleansing is required prior to colonoscopy. The gastrointestinal syptoms associted with colonic preps are common and oftn assoicated wwith upper gastrointestinal disorders including GERD, non-ulcer syspepsia, and gastric dysmotoility such as gastropareesis.