Gastroscopy is generally not taken before the bowel cleansing drugs, while the need for oral before the colonoscopy, oral bowel cleansing drugs after vomiting more than, should immediately stop taking the drug.
Bowel cleansing drugs mainly include polyethylene glycol electrolyte dispersions, magnesium sulfate, mannitol, lactulose, etc., which are usually taken before colonoscopy to keep the intestinal tract clean and to prevent intestinal contents such as fecal matter from remaining, which affects endoscopic field of view and results in leakage of diagnosis and other conditions.
Bowel cleansing drugs such as polyethylene glycol, which is an osmotic laxative, is hardly absorbed after oral intake, and can increase the fluid content of the intestinal tract and stimulate intestinal peristalsis, thus cleansing the intestinal canal. After taking laxatives, symptoms such as more than vomiting, nausea, abdominal distension, etc., belong to the adverse reaction of the drug, you should immediately stop taking the drug, and if necessary, timely medical treatment, under the guidance of the doctor for targeted treatment.
It should be noted that all of the above drugs should be taken under the guidance of a doctor and should not be used without authorization.