FDA Warns Epilepsy Drugs May Raise Suicide Risk

Agency will ask drug makers to put warning labels on entire class of medicines

By Steven Reinberg
HealthDay Reporter

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THURSDAY, Jan. 31 (HealthDay News) -- Commonly used antiepileptic drugs may boost the risk of suicide among patients who use them, the U.S. Food and Drug Administration warned Thursday.

A review of 199 studies comparing 11 of these drugs to placebos found that patients taking the drugs had about twice the risk of suicidal behavior compared with patients taking a placebo. In fact, of the almost 44,000 patients in the studies, four people taking antiepileptic drugs committed suicide while none of the patients receiving a placebo did.

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"We have been looking at these drugs since 2005," said FDA spokeswoman Sandy Walsh. "We have just come to the conclusion that it's time to alert heath-care providers."

Currently, some of drug labels do list suicide or suicidal behavior as a side effect, but others don't, Walsh noted.

The drugs included in the warning are: Carbamazepine (marketed as Carbatrol, Equetro, Tegretol, Tegretol XR), Felbamate (marketed as Felbatol), Gabapentin (marketed as Neurontin), Lamotrigine (marketed as Lamictal), Levetiracetam (marketed as Keppra), Oxcarbazepine (marketed as Trileptal), Pregabalin (marketed as Lyrica), Tiagabine (marketed as Gabitril), Topiramate (marketed as Topamax), Valproate (marketed as Depakote, Depakote ER, Depakene, Depacon) and Zonisamide (marketed as Zonegran). Some of these drugs are also available as generics.

According to the FDA, antiepileptic drugs are used to treat epilepsy, bipolar disorder, migraine headaches and other conditions.

Over the next several months, the agency intends to work with drug companies to change the labels of the drugs to reflect this risk, Walsh said. "We will be working with the companies to make sure the latest data is reflected in their prescribing information and labeling," she said. In addition, the agency will hold an advisory committee meeting on the issue.

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