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Reminder about risk of impaired activities the morning after use for all insomnia drugs
FDA requiring lower recommended dose for certain sleep drugs containing zolpidem
Silver Spring, MD, USA (January 10, 2013) – The U.S. Food and Drug Administration today announced it is requiring the manufacturers of Ambien, Ambien CR, Edluar and Zolpimist, widely used sleep drugs that contain the active ingredient zolpidem, to lower current recommended doses. Ambien and Ambien CR are also available as generics. New data show that zolpidem blood levels in some patients may be high enough the morning after use to impair activities that require alertness, including driving.
Using lower doses of zolpidem means less of the drug will remain in the blood in the morning hours. Since women eliminate zolpidem from their bodies more slowly than men, the FDA has notified the manufacturers that the recommended dose should be lowered for women and that the labeling should recommend that health care professionals consider a lower dose for men. Data show the risk for next-morning impairment is highest for patients taking the extended-release forms of these drugs. The FDA urges health care professionals to caution all patients (men and women) who use these products about the risks of next-morning impairment for activities that require complete mental alertness, including driving.
The FDA has informed the manufacturers that the recommended dosage of zolpidem for women should be lowered from 10 milligrams (mg) to 5 mg for immediate-release products (Ambien, Edluar, and Zolpimist) and from 12.5 mg to 6.25 mg for extended-release products (Ambien CR). For men, the FDA has informed the manufacturers that the labeling should recommend that health care professionals consider prescribing these lower doses (5 mg for immediate-release products and 6.25 mg for extended-release products). These products are currently available on the market in both the higher and lower dosages.
“To decrease the potential risk of impairment with all insomnia drugs, health care professionals should prescribe, and patients should take, the lowest dose capable of treating the patient’s insomnia,” said Ellis Unger, M.D., director, Office of Drug Evaluation I in the FDA’s Center for Drug Evaluation and Research. “Patients who must drive in the morning or perform some other activity requiring full alertness should talk to their health care professional about whether their sleep medicine is appropriate.”
In a Drug Safety Communication (http://www.fda.gov/Drugs/DrugSafety/ucm334033.htm) issued today, the FDA also reminded the public that morning impairment is not limited to zolpidem. Drowsiness is listed as a common side effect in the labels of all insomnia drugs, along with warnings that people may still feel drowsy the next day after taking one of these products. Moreover alertness can be impaired even in people who do not feel drowsy.
People who are currently taking the higher doses (10 mg or 12.5 mg) of zolpidem-containing insomnia medicines should continue taking the prescribed dose as directed until discussing with their health care professional how to safely continue to take the medicine. Each patient and situation is unique, and the appropriate dose should be discussed with a health care professional. Patients should read the Medication Guide that comes along with their medication for additional information on the benefits and risks of these products.
The labeling change is based on findings in driving simulation and laboratory studies showing that, in some individuals, zolpidem blood levels the morning after use appear capable of impairing driving to a degree that increases the risk of a motor vehicle accident.
“Over the years FDA has received spontaneous adverse event reports of driving impairment and motor vehicle accidents associated with zolpidem, but these reports lacked the information necessary to fully understand whether and how zolpidem affected people’s mental alertness and ability to drive,” said Dr. Unger. “Recently, data from clinical trials and other types of studies have become available, which allowed FDA to better characterize the risk of next-morning impairment.”
The FDA is continuing to evaluate the risk of impaired mental alertness with other insomnia drugs, including over-the-counter (nonprescription) drugs.
Today’s safety communication provides a data summary, guidance for health care professionals, and advice for patients.
Health care professionals and the public can report side effects from the use of zolpidem or other medicines to FDA’s MedWatch program.
FDA Drug Safety Communication: Risk of next-morning impairment after use of insomnia drugs – http://www.fda.gov/Drugs/DrugSafety/ucm334033.htm