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FDA Approves New Anti-Smoking Pill

The U.S. Food and Drug Administration has approved the use of Pfizer's new anti-smoking pill.

Chantix helps people stop smoking by blocking the pleasure they receive from smoking and reducing withdrawal symptoms as they quit.

The pill is to be taken twice a day during a 12-week treatment.

Studies have found Chantix helped 44 percent of people quit smoking while they were taking the drug. But that success rate drops to 22 percent a year after patients stop taking the pill.

More than 44 million Americans are estimated to be smokers.

Nearly half a million people die from smoking-related illnesses each year in the U.S.

Some information for this report was provided by AP and Reuters.