bowel preparation
"I fasted for 30 hours prior to drinking Gavilyte-N.  I walked a 5k race the night before my colonoscopy. Got home at 9am, had the Gavilyte chilled in the refrigerator, I was thirsty from the exercise. I pounced 8 glasses of the jug one after the other because I was thirsty and I didn't want to be up all night. Started working about 45 mins later."