Polyethylene glycol 3350 with electrolytes
"34 from UK in prep for a colonoscopy. Used the orange one with orange cordial to hide the taste. Wasn't too bad but obviously does taste rather rank. Started it at 3pm and finished the litre at around 6pm, just wasn't feeling it so close together. Kicked in first with a few stomach cramps and lots of wind and gurgles then boom. As others have said, it sure felt like I was peeing from my bum. "