Pfizer, an American multinational pharmaceutical and biotechnology corporation, is recalling all anti-smoking drugs Chantix after FDA has issued an alert to inform patients of the high levels of cancer-causing agents called nitrosamines in the pills. Chantix is a prescription medication that helps adults aged 18 and over quit smoking. The FDA recall notice reported that the long-term ingestion of the Chantix can lead to a "potential increased cancer risk in ...