WASHINGTON (AP) - Federal health officials have approved the
wrinkle-smoothing injection Botox for migraine headaches.

It gives drugmaker Allergan clearance to begin marketing its
drug to patients with a serious history of the condition.
 

The Food and Drug Administration approved the drug for patients
who experience 15 or more days of migraine headaches per month.
 

Allergan says roughly 3.2 million people in the U.S. have chronic
migraines.
 

For the new use, doctors are directed to inject patients in the
neck or head every 12 weeks to dull future headaches.
 

Doctors currently use a wide variety of medications to treat
migraines, ranging from over-the-counter painkillers to
prescription narcotics. Many patients also respond to changes in
diet or lifestyle.
 

The FDA approved the new use based on two company studies.