FDA Says Chantix Raises Risk Of Heart Attacks

Law360, New York (June 16, 2011, 3:33 PM EDT) -- Federal regulators on Thursday warned that Pfizer Inc.'s drug Chantix, which helps users quit smoking, increases the risk of heart attacks in those who already have cardiovascular disease.

The U.S. Food and Drug Administration said it would once again modify the warning label on the drug to reflect the newly learned risks, nearly two years after the agency required Pfizer to add a warning that Chantix could cause suicidal thoughts, depression, hostility and agitation.

The FDA said a clinical trial of 700 smokers had shown that...
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