Hundreds of patients taking Pfizer Inc's anti-smoking drug Chantix have reported serious accidents, vision problems and heart trouble, researchers said on Wednesday, sending shares of the world's largest drugmaker to their lowest level since 1997.
U.S. aviation regulators responded quickly to the research,
saying they would prohibit use of Chantix by private and
commercial pilots, while consumer advocates called for stronger
warnings on the drug's label.
Chantix, also known as...Full Story