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FDA Warns Against Certain Uses of Asthma Drug Terbutaline for Preterm Labor

Thu, 02/17/2011 - 9:35am
Bio-Medicine.Org

SILVER SPRING, Md., Feb. 17, 2011 /PRNewswire-USNewswire/ -- The U.S. Food and Drug Administration is warning that terbutaline administered by injection or through an infusion pump should not be used in pregnant women for prevention or prolonged (beyond 48-72 hours) treatment of preterm labor due to the potential for serious maternal heart problems and death. In addition, oral terbutaline tablets should not be used for prevention or treatment of preterm labor. The FDA is requiring the addition of a Boxed Warning and Contraindication to the drug prescribing information (labeling) to warn against these uses.

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Terbutaline is FDA-approved to prevent and treat narrowing of the airways (bronchospasm) associated with asthma, bronchitis, and emphysema. The drug is used off-label for obstetric purposes, including treating preterm labor and treating uterine hyperstimulation. Terbutaline has also been used in an attempt to prevent recurrent preterm labor. There is no evidence, however, that use of terbutaline to prevent preterm labor improves infant outcomes. Serious adverse events, including maternal deaths, have been reported with such use in pregnant patients.

"Women should be aware that serious and sometimes fatal side effects have been reported after prolonged use of terbutaline in pregnant women," said Scott Monroe, M.D., director of FDA's Division of Reproductive and Urologic Products. "It is important for patients and health care professionals to consider all the potential risks and known benefits of any drug before deciding on its use."

The FDA is aware that administration of terbutaline by injection to pregnant women is used in hospital settings in certain urgent situations. The FDA warning relates to safety concerns about the prolonged use of terbutaline injection beyond 48-72 hours, and against any use of oral te

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