Magnesium sulfate / potassium sulfate / sodium sulfate
bowel preparation
"This is my 3rd colonoscopy.  I've done golightly in the past. This is my first time with Suprep.  I don't like drinking water, so this is always very difficult for me.  So far I've made it through the 1st bottle, but dreading drinking the next one in a few hours.  I found the taste just awful and had to chase it with white grape juice.  I wish someone would develop a prep that didn't taste so badly."