The U.S. Consumer Product Safety Commission (CPSC) is advising parents and caregivers to be cautious when using infant slings for babies younger than four months of age. In researching incident reports from the past 20 years, CPSC identified and is investigating at least 14 deaths associated with sling-style infant carriers, including three in 2009. Twelve of the deaths involved babies younger than four months of age.

Slings can pose two different types of suffocation hazards to babies. In the first few months of life, babies cannot control their heads because of weak neck muscles. The sling’s fabric can press against an infant’s nose and mouth, blocking the baby’s breathing and rapidly suffocating a baby within a minute or two. Additionally, where a sling keeps the infant in a curled position bending the chin toward the chest, the airways can be restricted, limiting the oxygen supply. The baby will not be able to cry for help and can slowly suffocate.

Many of the babies who died in slings were either a low birth weight twin, were born prematurely, or had breathing issues such as a cold. Therefore, CPSC urges parents of preemies, twins, babies in fragile health and those with low weight to use extra care and consult their pediatricians about using slings.

Two months ago, the Commission added slings to the list of durable infant products that require a mandatory standard. Additionally, CPSC staff is actively investigating these products to determine what additional action may be appropriate. Until a mandatory standard is developed, CPSC is working with ASTM International to quickly complete an effective voluntary standard for infant sling carriers.

CPSC recommends that parents and caregivers make sure the infant’s face is not covered and is visible at all times to the sling’s wearer. If nursing the baby in a sling, change the baby’s position after feeding so the baby’s head is facing up and is clear of the sling and the mother’s body. Parents and caregivers should be vigilant about frequently checking their baby in a sling.

New USP Standards for Heparin Products Will Result in Decreased Potency
Adjustments may be Needed to Achieve Desired Anticoagulant Effect in Some Patients
New Heparin to Ship Starting October 8

The U.S. Food and Drug Administration today alerted health care professionals to a change in heparin manufacturing that is expected to decrease the potency of the common anti-clotting drug.

To ensure the quality of heparin and to guard against potential contamination, the United States Pharmacopeia (USP), a nonprofit standards-setting organization, adopted new manufacturing controls for heparin. These changes include a modification of the reference standard for the drug’s unit dose.

Manufacturers in the United States label the amount of heparin included in their products based on USP standards. The changes adopted by the USP for the heparin unit dose match the World Health Organization’s International Standard (IS) unit dose definition that has been in use in Europe for many years. The revised USP reference standard and unit definition for heparin is about 10 percent less potent than the former USP unit.

A unit is the measure of a drug’s activity in the body. For heparin, a unit dose is the measure of the drug’s ability to block the blood’s natural clotting ability (anticoagulation). Heparin’s potency is determined by the dose of the drug required to produce a specific level of anticoagulation.

Manufacturers for the U.S. market have begun to make heparin using the new USP standard. While the USP manufacturing controls take effect Oct. 1 for production, the FDA has asked that they not ship this new product to customers until Oct. 8, 2009, or later. The delay will give health care providers and facilities time to learn about the changes and to make adjustments to their pharmacy procedures and dosing practices, according to John Jenkins, M.D. director of the Office of New Drugs in the FDA’s Center for Drug Evaluation and Research.

“Although the FDA-approved labeling for heparin has not changed, including the recommended doses, it is essential that health care professionals be aware of the potential difference in potency between the old and new vials of heparin when administering the drug,” said Jenkins.

Four companies market heparin in the United States. APP, the largest manufacturer, markets heparin in vials; Hospira markets heparin in intravenous bags, vials, and syringes; Baxter markets heparin in intravenous bags, and B. Braun markets heparin in intravenous bags. The FDA has asked that all manufacturers identify their new products to help pharmacies and health care professionals differentiate it from the former product.

Prescription and over–the–counter medicines available in the United States must generally meet USP’s public standards, when such standards exist. The revised standards for heparin are contained in a new USP monograph.

The monograph was revised, in part, in response to a 2007- 2008 incident of heparin contamination involving a manufacturing step in China. The contaminated heparin was associated with deaths and other adverse events in the United States. The monograph was changed to include a test for the contaminant.

FDA Issues Early Communication about Ongoing Safety Review of Orlistat.
Weight loss drug review includes both prescription drug Xenical and OTC drug Alli.

The U.S. Food and Drug Administration announced today that it is reviewing adverse event reports of liver injury in patients taking the weight loss drug orlistat, marketed as the prescription drug Xenical and the over-the-counter medication Alli.

Between 1999 and 2008, the FDA received 32 reports of serious liver injury in patients taking orlistat. Of those cases, 27 reported hospitalization and six resulted in liver failure. Thirty of the adverse events occurred outside the United States. The most commonly reported adverse events included yellowing of the skin or whites of the eyes (jaundice), weakness, and stomach pain.

The FDA is reviewing additional data submitted by orlistat manufacturers on suspected cases of liver injury, and the issue has been discussed at the FDA’s Center for Drug Evaluation and Research Drug Safety Oversight Board.

“The issues here are complex, but FDA has benefited from the input of the Board, including comments from representatives from three FDA Centers and several other Agencies in the Department of Health and Human Services,” said Steven Osborne, M.D., executive director of the Board.

The FDA’s analysis of these data is ongoing, and no definite association between liver injury and orlistat has been established at this time. Consumers taking Xenical should continue to take it as prescribed, and those using over-the-counter Alli should continue to use the product as directed.

For more information on the Early Communication about the ongoing safety review please read: Orlistat (Marketed as Alli and Xenical) Safety Review. The Early Communication is a risk communication tool used by the FDA to inform the public about its ongoing safety reviews of drugs. The FDA will release its findings on orlistat as soon as the review is completed.

Consumers who have used orlistat should consult a health care professional if they experience symptoms possibly associated with development of liver injury, particularly weakness or fatigue, fever, jaundice, or brown urine. Other symptoms may include abdominal pain, nausea, vomiting, light-colored stools, itching, or loss of appetite.

The FDA urges both health care professionals and consumers to report suspected side effects from the use of orlistat to FDA’s MedWatch Adverse Event Reporting program.

FDA’s Early Communication about the Ongoing Safety Review of Orlistat.

FDA is reviewing new safety information regarding reports of liver-related adverse events in patients taking orlistat. Orlistat is marketed in the United States as a prescription product, Xenical, and as an over-the-counter (OTC) product, Alli.

Xenical (orlistat 120mg) was approved as a prescription product by FDA in 1999 for obesity management in conjunction with a reduced caloric diet, and to reduce the risk of regaining weight after prior weight loss. In 2007, Alli (orlistat 60mg) was approved for OTC use for weight loss in overweight adults, 18 years and older, in conjunction with a reduced-calorie and low-fat diet. Currently, orlistat is approved for marketing in approximately 100 countries. In January 2009, a nonprescription version of orlistat was approved for sale in the European Union.

Between 1999 and October 2008, 32 reports of serious liver injury, including 6 cases of liver failure, in patients using orlistat were submitted to FDA’s Adverse Event Reporting System. Thirty of the 32 reports occurred outside the United States. The most commonly reported adverse events described in the 32 reports of serious liver injury were jaundice (yellowing of the skin or whites of the eyes), weakness, and abdominal pain. Hospitalization was reported in 27 of the 32 cases.

In addition to the 32 reported cases, this issue was discussed at the CDER Drug Safety Oversight Board in April 2009, and FDA is reviewing other data on suspected cases of liver injury submitted by the manufacturers of orlistat. FDA’s analysis of these data is ongoing and no definite association between liver injury and orlistat has been established at this time.

FDA is not advising healthcare professionals to change their prescribing practices with orlistat. Consumers currently taking Xenical should continue to take it as prescribed and those using over-the-counter Alli should continue to use the product as directed.

Consumers should consult their health care professional if they are experiencing symptoms possibly associated with the use of orlistat and development of liver injury, particularly weakness or fatigue, fever, jaundice or brown urine. Other symptoms may include abdominal pain, nausea, vomiting, light-colored stools, itching, or loss of appetite.

FDA urges both healthcare professionals and consumers to report side effects from the use of orlistat (Alli and Xenical) to FDA’s MedWatch Adverse Event Reporting program.

This early communication is in keeping with FDA’s commitment to inform the public about its ongoing safety reviews of drugs. FDA will communicate its findings to the public as soon as its review of orlistat is complete.

This information reflects FDA’s current analysis of available data concerning these drugs. Posting this information does not mean that FDA has concluded there is a causal relationship between the drug products and the emerging safety issue. Nor does it mean that FDA is advising health care professionals to discontinue prescribing these products. FDA is considering, but has not reached a conclusion about whether this information warrants any regulatory action. The FDA will release an update when additional information or analyses become available.

Agency Investigating Dilantin Risks of SJS and TEN

FDA is investigating new preliminary data regarding a potential increased risk of serious skin reactions including Stevens Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) from phenytoin therapy in Asian patients positive for human leukocyte antigen (HLA) allele, HLA-B*1502. This allele occurs almost exclusively in patients with ancestry across broad areas of Asia, including Han Chinese, Filipinos, Malaysians, South Asian Indians, and Thais. Until the FDA evaluation is completed, healthcare providers who are considering the use of phenytoin or fosphenytoin should be aware of the risks and benefits described in the current prescribing information for this drug. Healthcare providers should consider avoiding phenytoin and fosphenytoin as alternatives for carbamazepine in patients who test positive for HLA-B*1502. A summary of the data currently being analyzed by FDA, and information for patients and healthcare professionals to consider, can be found on the FDA’s website.

See also: Dilantin Side Effects.

SOURCE: U.S. Food and Drug Administration (FDA)