Bowel prep for colonoscopy often uses a laxative called polyethylene glycol (PEG). It comes as a powder, and you mix it with lots of water. It may include electrolytes, or you can take it with a sports drink. PEG bowel preps work well for colonoscopy prep, and they're gentle on your ...
To avoid vomiting, it can also be helpful to leave longer intervals between drinks. If someone does vomit after consuming a dose of the solution during their colonoscopy prep, it is important to repeat the dose. How to tell if colonoscopy prep has been effective: what to expect Prep is com...