Beasley, Allen, Crow, Methvin, Portis & Miles, P.C.

Let’s face it. There is no comfortable way to prepare for a colonoscopy. You can call it a necessary evil, but colon screenings are necessary for early detection of colorectal cancer for people ages 50 and older, those with a family history, or individuals who are experiencing bothersome symptoms, such as blood in the stool. After all, early detection of precancerous lesions are associated with an up to 90 percent reduction in colon cancer, the country’s second-leading cause of cancer deaths.

Proper cleansing of the bowel is necessary for doctors to see the colon clearly. Inadequate cleansing could prevent doctors from detecting polyps or other precancerous growths and may require repeat procedures. Doctors order a specific protocol for their patients, which usually involves a type of laxative that is either taken as a pill or a solution. Both are available over the counter or by prescription.

There are different types of laxatives available. One is a polyethylene glycol electrolyte solution. Brand names of this type of product include GoLYTELY and MoviPrep. This solution increases the amount of water in the intestinal tract to stimulate bowel movements. It also contains minerals that work to replace electrolytes that are passed from the body with the stool.

Another type of laxative – available in both solution and pill form – is oral sodium phosphate, or OSP. There are several brands of OSPs, including the prescription tablets Visicol and Osmo Prep, and over-the-counter solutions such as Fleet Phospho-soda. While effective, concerns have been raised recently over the safety of OSP.

Last year the Food and Drug Administration (FDA) issued a black box warning on prescription OSP products, and Fleet pulled its over-the-counter OSP products from shelves, after numerous reports of a serious kidney injury were linked to use of OSPs. While the elderly are at higher risk, in some cases the serious adverse events occurred in patients with no pre-existing health conditions that would have otherwise put them at higher risk for kidney injury.

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