In December 2008, the Food and Drug Administration (FDA) issued a black box warning on OSP products, specifically Salix’s OsmoPrep and its similar drug Visicol, after receiving numerous reports of a serious kidney injury occurring after use of the products. The injury is known as acute phosphate nephropathy. Those most at risk of developing the serious kidney injury are the elderly and those with preexisting kidney problems, however some people with no risk factors have fallen ill from OSPs. An FDA black box warning is the most serious warning the FDA can issue and is placed on products that carry a risk of severe adverse events or death.

Following the FDA warning, over-the-counter OSP solutions such as Fleet Phospho-Soda made by C.B. Fleet, were pulled from store shelves. While the FDA says the products are safe when used in lower doses as a laxative, in higher doses the solutions posed the same risk as the prescription OSP products.

Source: CNN

SOURCE: Fleet Attorney › Lawsuits citing kidney injury from OsmoPrep commence

Acute phosphate nephropathy is a form of acute kidney injury that is associated with deposits of calcium-phosphate crystals in the renal tubules that may result in permanent renal function impairment. The black box warning fell on prescription OSPs Visicol and Osmo Prep, both made by Salix Pharmaceuticals.

The ageny also issued a stern safety warning on over-the-counter OSP products. As a result of FDA warning C.B. Fleet Company pulled its OSPs, which include Fleet Phospho-soda and Fleet Accu-Prep from the shelves. While in small doses the Fleet products were deemed safe for use as a laxative, using them in larger doses as a bowel cleanser posed the same risk of kidney injury to consumers.

Those most at risk for developing the severe adverse event following use of OSPs include persons who are 55 years of age or older; who are hypovolemic or have decreased intravascular volume; who have a baseline kidney disease, bowel obstruction or active colitis; and who are using medications that affect renal perfusion or function such as diuretics or NSAIDS. Despite the risk factors, the FDA said that in some cases these serious adverse events occurred in patients with no pre-existing health factors that would have put them at risk for developing kidney injury.

Over the years several lawsuits have been filed against the makers of OSPs by individuals who have suffered serious kidney injury as result of OSPs, including Mary Little, a resident of Newton County, Georgia. Little’s lawsuit states that Fleet was aware of the risks associated with its product and was obligated to discuss these risks with her physicians and her. By failing to do so, Little suffered serious personal injuries and related damages and is asking for compensation for injuries and emotional distressed caused by ingesting the Fleet product. Her case is being handled by attorney Russell Todd Abney with Beasley Allen Law Firm.

SOURCE: Fleet Attorney › December marks year anniversary of FDA OSP black box warning

Attorney Russell Todd Abney

In October 2007, Little ingested the product in preparation for a colonoscopy without knowing that the solution had been linked to permanent kidney damage and renal failure. After using Fleet, a type of laxative known as oral sodium phosphate, or OSP, Little began having complications and suffered from acute renal failure. According to the complaint, the condition has caused her to suffer extensive pain, emotional distress and a reduction in her ability to enjoy life.

Though Fleet was aware of the risk of serious kidney injury associated with the use of its OSP products to cleanse the bowel prior to procedures such as colonoscopy, the company did nothing to warn consumers, according to the complaint. In December 2008, the Food and Drug Administration, responding to numerous reports of kidney injury associated with OSPs, issued a black box warning for prescription brands Visicol and Osmo Prep, made by Salix Pharmaceuticals. In turn, Fleet, which sold over-the-counter OSP products that are not as closely regulated by the FDA, pulled its products off store shelves.

The Little lawsuit states that Fleet, which was aware of the risks, was obligated to discuss with Little, her physicians and other consumers and physicians the risk of severe kidney injury. As a direct result of the defendants’ “malicious and/or intentional conduct,” Little suffered severe personal injuries and related damages. Little and her husband, Willie, are asking for compensation for injuries and emotional distress caused by ingesting the Fleet product.

Read the Little complaint.

SOURCE: Fleet Attorney › Woman who suffered serious kidney injury files suit against Fleet

“Sometimes it is necessary for people preparing to undergo a medical procedure or examination, such as a colonoscopy or a colon x-ray,” says to Dr. Mark Larson, a gastroenterologist at Mayo Clinic in Rochester, Minn., in the Hartford Courant. “But unless a doctor has recommended it as a preparation for such procedure, I strongly discourage people from colon cleansing. It can cause traumatic injury to the colon and result in long-term medical problems.”

Colon cleansing is the process of releasing the contents from the bowel and intestines. It is a required preparation prior to colonoscopies and other medical procedures so that the physician has a clear view of the bowels. The process usually takes at least a day. Common methods of colon cleansing include enemas or the swallowing of a pill or solution that induces the colon to purge its contents. While the process is prescribed by physicians, some people believe that there are benefits to regularly cleansing the bowel to rid the body of toxins.

However, Dr. Larson explains that the colon and intestines naturally eliminate waste material and bacteria. Excessive colon cleansing may actually harm the bowel’s ability to function properly by weakening the colon muscles, thus making them less efficient. And the argument that the process eliminates nasty toxins? Dr. Larson says there is simply no scientific data to back up that claim.

Another concern is that some products used to cleanse the bowel may actually cause serious kidney problems. Oral sodium phosphates, also known as OSPs, have been linked to a serious form of kidney injury known as acute phosphate nephropathy. Prescription OSP brands Visicol and Osmo Prep made by Salix Pharmaceuticals now carry an FDA black box warning about the serious kidney injury. Over-the-counter OSP brands, such as Fleet Phospho-soda and Fleet Accu-Prep, were promptly pulled off the market for similar concerns.

The safest bet, Dr. Larson says, is to exercise regularly and maintain a healthy diet with plenty of fluids and fiber. If constipation is an issue, talk to your healthcare provider. And if ordered by your doctor to cleanse your bowel for a medical procedure, be sure the laxative you are taking is safe.

SOURCE: Fleet Attorney › Colon cleansing carries risk of traumatic injury, medical problems

The black box warning fell on Salix  Pharmaceuticals’ prescription OSP brands Visicol and Osmo Prep, and serious warning was placed on over-the-counter OSP products such as Fleet Phospho-soda and Fleet Accu-Prep. The serious adverse event that was occurring in patients repeatedly over the years was a serious form of kidney injury now known as acute phosphate nephropathy.

Phosphate nephropathy occurs when the kidneys have been severely damaged by the formation of phosphate crystals within the renal tubes. The deposits may result in reduced kidney function. The pieces of calcium may also lead to the formation of stones, or nephrolithiasis. The calcium pieces can damage the nephron and can cause acute renal failure. When the kidney damaged by phosphate nephropathy is biopsied, the pathological findings are typical of nephrocalcinosis.

Imaging tests such as films and CT scans of the abdomen can help identify the disorder. Other tests can help determine the severity. Prognosis varies depending on the extent of complications and the cause of the disorder. Possible complications include acute renal failure, chronic renal failure, kidney stones and obstructive uropathy. Affected individuals may experience suddenly decreased urine output and decreased consciousness.

SOURCE: Fleet Attorney › Severe kidney injury linked to use of OSP products

In December 2008, the Food and Drug Administration (FDA) issued a black box warning on prescription OSP products Visicol and Osmo Prep made by Salix Pharmaceuticals after numerous reports of a serious form of kidney injury known as acute phosphate nephropathy had been reported in patients following the use of the products. The FDA also expressed equal concern over the use of over-the-counter OSP solutions such as Fleet Phospho-soda and Fleet Accu-Prep. As a result of the warning, C.B. Fleet issued a recall of its over-the-counter OSP solutions.

Since the FDA issued its first alert in May 2006 about the potential risk of acute phosphate nephropathy in patients who used OSP products, steps have been taken to warn doctors of the potential risks in using OSP products. The warning also was added to a consensus document on bowel preparation issued jointly by the American Society of Colon and Rectal Surgeons, the American Society of Gastrointestinal Endoscopy, and the Society of American Gastrointestinal and Endoscopic Surgeons.

“Hopefully this will lead to increased awareness of the risk factors for (acute phosphate nephropathy) and more judicious, individualized selection of bowel purgatives,” the authors write. “Additional prospective studies are needed to more precisely determine the incidence of (acute phosphate nephropathy) so that physicians and patients can make informed decisions regarding the choice of bowel purgative.”

Source: JASN

SOURCE: Fleet Attorney › Thousands could be injured each year by OSP bowel cleansers

The colon hydration is administered by a trained technician in a private room at a spa and takes about 45 minutes. During that time, the patient lies on a table on his back and sides. The method offers a more soothing environment than a hospital setting with less discomfort than the traditional method. Advocates say this makes colon hydration much easier to handle than drinking large doses of laxatives and staying at home, near the bathroom.

Colon hydrotherapy may catch on with more hospitals and physicians, especially since many of the products used to cleanse the bowel prior to colonoscopy have fallen under a black box warning by the Food and Drug Administration (FDA) for causing serious kidney injury called acute phosphate nephropathy in some patients who used oral sodium phosphate products (OSP) for bowel cleansing.

The prescription OSP products in question include Salix Pharmaceuticals’ Visicol and Osmo Prep. The FDA also raised serious concerns over over-the-counter OSP products, including Fleet Phospho-soda made by C.B. Fleet. Shortly after the FDA warning in December 2008, C.B. Fleet pulled its over-the-counter products from the market.

SOURCE: Fleet Attorney › Colon hydration offers alternative to OSP for bowel prep