Clinical Study on the Application of Lactulose Combined with Linaclotide in Bowel Preparation for Colonoscopy

At 20:00 the night before the examination, pour 2 boxes of lactilose into a cup, add 1000ml of water and drink it; 4 to 6 hours before the examination, dissolve the third box of lactulose into 1000ml water, and drink it; Until pale yellow or clear dung water is drawn.

1 capsule of linalotide (290ug) taken orally half an hour before meal at 12:00 noon on the previous day， and two doses were taken after 20:00 according to the above Lactulose-taking method.

a bag of PEG was dissolved into 1L at 20:00 1d before the examination, and was drunk at a constant rate within 2h; 4 to 6 hours before the inspection, dissolve the second bag of PEG into 2L water and drink it.