The new warnings apply to blockbuster drugs used by millions of patients to control seizures.
The drugs include GlaxoSmithKline's Lamictal, Johnson & Johnson's Topamax and Pfizer's Lyrica.
The FDA stopped short of adding its sternest warning to the medications, as it had proposed doing earlier in the year. In July a panel of outside experts recommended against adding the so-called "black box" warning, the strongest type available.
Anti-seizure drugs are used for a variety of illnesses in addition to epilepsy, including migraines, certain nerve-pain disorders, and psychiatric diseases such as bipolar disorder.
(Copyright 2008 by The Associated Press. All Rights Reserved.)
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