FDA Limits Use of Controversial Antibiotic

Ketek, which has been linked to liver damage, also gets updated 'black box' warning

By Amanda Gardner
HealthDay Reporter

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MONDAY, Feb. 12 (HealthDay News) -- The U.S. Food and Drug Administration announced Monday that the controversial antibiotic Ketek, which has been linked to liver damage, will now come with a "black box" warning when prescribed to treat pneumonia.

And the drug will no longer be approved to treat two "lesser indications," sinusitis and bronchitis.

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The revisions mirror recommendations made by two FDA advisory committees last year.

"The changes are designed to inform health-care providers and patients regarding the safe and effective use of Ketek consistent with advice received from advisory committees in December of last year," Dr. John Jenkins director of the Office of New Drugs at the FDA's Center for Drug Evaluation and Research, told reporters at a teleconference. "The changes are the result of a comprehensive analysis of available data regarding the benefits and risks of Ketek conducted by [FDA] team members."

Ketek (generic name telithromycin) is getting the black-box warning, the strongest available, stating that it should not be used in patients with myasthenia gravis, a neurolmuscular autoimmune disease that causes muscle weakness. The new labeling will also include a strengthened warning on specific adverse events, such as visual disturbances and loss of consciousness.

A patient medication guide using "patient-friendly" language will also be passed out with each new prescription.

As recommended by the advisory committees, the antibiotic will no longer be approved for sinusitis and bronchitis.

"The benefits and risks do not support continued approval for Ketek for these often non-serious and self-limited illnesses," Jenkins said. "The drug continues to be approved for community-acquired pneumonia of mild to moderate severity, which is a more serious illness that generally does not resolve without antibiotic therapy."

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