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FDA Warns Against Bowel Cleansing Drugs for Colonoscopy

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2008-12-12 09:16

Bowel cleansing products that contain sodium phosphate have received a stern warning from the FDA about the potential of the products to cause acute kidney damage. Two products available by prescription, Visicol and OsmoPrep have received "black box" warnings from the FDA. The over-the-counter bowel cleanser, Fleet Phospho-soda, is also not recommended for consumer use because of the same potential for kidney injury as seen in the prescription bowel cleansers.

The FDA reveals they have received 20 reports of sudden kidney injury within the past two years, associated with the use of OsmoPrep and Visicol. Both products were approved by the FDA in 2006. Since that time, nineteen cases of kidney failure have been confirmed by biopsy, occurring within hours or weeks after the prescriptions were used for bowel cleansing.

FDA officials claim that not everyone is at risk. Charles Ganley, MD, director of the FDA's Office of Nonprescription Products says, "The majority (of patients) don't run into problems." Those at risk include anyone over age 55, people with colon problems causing a delay in bowel evacuation, anyone with acute colitis, and those who are dehydrated.

Precautions are especially important for patients who take medication that already can affect the kidneys, including diuretics, ACE inhibitors (blood pressure medicine), and anti-inflammatory drugs (NSAIDS), such as Ibuprofen and Naproxen.

Polyethylene glycol preparations that can be safely used for bowel cleansing include Golytely, Colyte, Nulytely, Trilyte, and Halflytely, none of which contains sodium phosphate.

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In January, 2014, the FDA also issued an alert for over the counter products containing sodium phosphate or sodium biphosphate, warning again of the risks of dehydration that can occur from taking more than the recommended dose. The products are sold for constipation and can be taken orally or used in enema preparations. An example is "Fleet" enema.

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Comments

According to this article, those taking ace inhibitors are also at risk for kidney damage. I take LISINOPRIL 20 mg. daily. Is that an ace inhibitor? What should I do? I am 73 years old and in goog health, except that I have high blood pressure.
Yes, Lisinopril is an ace inhibitor. If your doctor keeps you up to date with blood work, you will be fine. If you do not routinely have kidney function studies, such as annually or every six months, it would be best to talk with your doctor - the tests are basic, and covered by Medicare, because you are on such a medication.

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