Drugs for bowel clearance include compound polyethylene glycol electrolyte bulk, mannitol and magnesium sulfate.
1. Compound Polyethylene Glycol Electrolyte Dispersant: It is a compound preparation mainly used for colonoscopy and removal of processed intestinal contents before colon surgery. It is contraindicated in patients with intestinal obstruction, gastrointestinal bleeding, intestinal perforation, gastric retention and those who are allergic to the ingredients in this compound preparation. Adverse reactions such as vomiting and bloating can occur. Attention should be paid to strict adherence to the method of preparation of the drug.
2. Mannitol: it is suitable for preoperative bowel cleansing preparations, cerebral edema caused by various reasons. The drug is contraindicated in cases of severe water loss and acute pulmonary edema. Adverse reactions such as water and electrolyte disorders, chills, fever, etc. will occur when taking this drug. It should be noted that the drug should be administered intravenously except for preoperative bowel cleansing. The drug is easy to crystallize in the cold, and should be carefully checked before use.
3. Magnesium sulfate: mainly used for constipation, obstructive jaundice, chronic cholecystitis and other diseases. Intestinal bleeding, acute abdomen, pregnant women and menstruating women are forbidden to use this drug. Adverse reactions of dehydration can occur with the use of this drug. It should be noted that in the presence of ruptures in the gastrointestinal tract, it is easy to cause magnesium poisoning. In addition, when using the drug, it is necessary to pay close attention to the patient’s breathing and blood pressure.
It is recommended to use the drug under medical supervision and avoid self-medication.