Compound Polyethylene Glycol Electrolyte Bulk is vomiting after drinking, if only nausea, vomiting and no other discomforts, you can consider continuing to take it, if accompanied by dizziness, palpitations (rapid heartbeat, often accompanied by panic) or other discomforts, you can consider stopping taking it and should consult a doctor before treatment. 1. Compound Polyethylene Glycol Electrolyte Dispersant is mostly used for colonoscopy and before colon surgery, it is easy to produce nausea, vomiting and other gastrointestinal adverse reactions after taking it, and if vomiting occurs after drinking it will affect the efficacy of the medicine, and the related examination cannot be carried out. Therefore, if only nausea, vomiting and no other discomforts occur, and a large amount of fecal sludge appears during defecation, it indicates that the intestinal tract has not been cleaned, which affects the results of the examination, and it may be necessary to continue to take it. 2. If the vomiting is severe and there are serious symptoms such as dizziness, palpitations or other discomforts, then you may consider stopping taking it. If there is a need for medication, you should go to the hospital and use the medication under the guidance of a doctor, and should not use the medication blindly on your own, so as not to cause adverse effects on the body.