The most common dosage forms of Copolyethylene Glycol Electrolyte are oral solution and bulk. Copolyethylene glycol electrolyte oral solution is contraindicated in patients with hypersensitivity, as well as in patients with intestinal perforation, intestinal obstruction, EB/GI hemorrhage, toxic enterocolitis, and toxic megacolon. In addition to the contraindications of the oral solution, it is contraindicated in patients with Crohn’s disease. Compound Polyethylene Glycol Electrolyte Oral Solution is an intestinal cleansing agent indicated for the preparation of bowel cleansing prior to colonoscopy and preoperatively, and the Bulk Dose can also treat functional constipation. The oral solution can be taken directly by mouth, and the bulk agent is a compound preparation that should be configured in strict accordance with the configuration method. When oral solution and bulk preparation are used in bowel cleansing preparation, adverse reactions such as nausea, vomiting, dizziness, headache, etc. may occur, and dermatitis, shock, etc. may occur in individual cases. Common adverse reactions to bulk in the treatment of constipation include diarrhea and bouts of abdominal pain. The safety of oral solution is not clear in children, pregnant women, and nursing mothers. The use of oral solutions in elderly patients should be slowed down and monitored. No studies have been reported on the use of the Bulk Solution in pregnant and lactating women. Children under two years of age should be carefully tested for dehydration as well as hypoglycemia. The medication should be used under the supervision of a physician.