The generic name of the drug is Polyethylene Glycol Electrolyte Dispersant, which is used for bowel cleansing preparation before colonoscopy, should be prepared first, A agent, B agent dissolved in 125 ml of lukewarm water into a solution, each time to drink 250 ml, every 10-15 minutes to take a dose of until the discharge of watery clear stools. Polyethylene glycol electrolyte bulk agent consists of A, B two doses, of which the A dose contains polyethylene glycol 4000; B dose contains sodium bicarbonate, sodium chloride, potassium chloride, and its use in bowel preparation before enteroscopy should be prepared first. Take one packet of each of the two doses of A and B of the product, dissolve them in 125 ml of warm water to form a solution, drink 250 ml each time, and take it every 10-15 minutes until the discharge of watery clear stools. It should be noted that this product is used for intestinal preparation of up to 3,000 ml of oral intake, can not be taken in large quantities, in order to avoid nausea, vomiting, abdominal distension, abdominal cramps and other adverse reactions, and allergic to this product and gastro-intestinal obstruction, intestinal perforation, gastrointestinal hemorrhage, toxic enteritis, and other diseases should be prohibited, the specific use of the specific use of the physician’s guidance should be carried out in accordance with the instructions of the doctor.