Good luck to you! I recently had a colonoscopy and the prep was no big deal whatsoever. I was expecting that I would get sick from drinking it, but pretty much had no reaction. I fasted for 72 hours prior to drinking the prep (water with a little bit of lemon juice only). Bought the lemon-ginger flavored phospho soda and mixed it with lemon flavored gatorade and water. Drank it chilled and with a straw. The first dose did absolutely nothing. After the second dose (6 hours after the first) I finally went a little bit, but not much. I returned the unopened package of wipes for a refund - I barely even used any tp!

The procedure itself - had to have an enema first since the prep didn't produce the results they wanted. Yucky. Then they put me out. I don't even remember getting dressed or hubby driving me home afterward. I felt very foggy-headed and out of it for the next day or so.

The real fun began AFTER the test. I swelled up like a balloon - edema - from all of the retained phospho soda prep. I gained over 8 pounds of water weight and over the course of the next two weeks got to the point where I couldn't wear closed shoes and my eyes almost swelled shut. Then, my body started shedding water like crazy and I got back to "normal."

All of that to be told my symptoms were either an infection or ischemic colitis - no cancer - whew!

Anyway, long explanation, but just wanted to give you my experience. We're all different, so I'm not saying you'll be affected the same way.

Again - GOOD LUCK!