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The polyethylene glycol (PEG) and electrolytes solution is used to
clean the colon (large bowel or lower intestine) before certain tests or surgery of the colon. The PEG-electrolyte solution is usually taken by mouth. However, sometimes it is given in the hospital through a nasogastric tube (a tube inserted through the nose).
The PEG-electrolyte solution acts like a laxative. It causes liquid stools or mild diarrhea. In this way, it flushes all solid material from the colon, so the doctor can have a clear view of the colon
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