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Pfizer Chantix Stop-Smoking Drug Contains Impurity Complaint

August 12, 2021

Chantix, a drug made by Pfizer, Inc., is designed to help people stop smoking. Its active ingredient is varenicline. But the complaint for this class action alleges that Chantix contains dangerously high levels of N-nitroso-varenicline, an impurity which is a carcinogen.

Case Event File: Pfizer Chantix Stop-Smoking Drug Contains Impurity Complaint

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