Bowel cleansing agents are used to clean out the colon before colonoscopy.
A clean colon allows the physician to find polyps and remove them.
GoLYTELY, Nulytely, Trilyte, Colyte, MoviPrep, SUPREP, OsmoPrep, Prepopik are examples of bowel cleansing agents.
Bowel cleansing agents can be used alone or in conjunction with over the counter laxatives like bisacodyl or magnesium citrate. If an over the counter laxative is also recommended, it is usually used about 1 hour before using the bowel cleansing agent.
There are 2 main ways to take your bowel cleansing agent: the day before regimen and the split dose regimen.
In the day before regimen, the entire bowel cleansing agent is used the evening before the colonoscopy.
In the split-dose regimen, half the total dose of the bowel cleansing agent is used the day before your colonoscopy and the 2nd half is used 4 hours before the time of your colonoscopy. You should finish the 2nd half at least 2hours before your procedure time.
Split dosing leads to better colon cleansing and improved detection of polyps.
For patients scheduled for colonoscopy in the afternoon, a 3rd way of taking the bowel cleansing agent exists. This is called the same-day regimen. In this regimen, the bowel cleansing agent is used in the morning of the colonoscopy.
Follow the advice of your physician regarding how you should use your bowel cleansing agents before colonoscopy.