Suprep Bowel Prep Kit
"This was my 3rd colonoscopy and the first time using this prep. The two previous times, I had used the Miralax/Gatorade "gallon" prep which was difficult to handle the massive volume of liquid. I found this prep, terrible tasting (but so were the previous preps).  This one was less consumption of volume.  I didn't get any cramping, no chills like some others, and had no overall bad side effects.  As far as the prep is concerned...make sure you use  "cold" ice water and not cold tap water when mixing it as well as the followup 2 x 16oz containers of water.  The taste is very salty/sweet and I recommend not breathing through your nose when downing the mixture."