Last month, Pfizer announced a pause in the distribution of smoking-cessation drug Chantix (varenicline) after identifying levels of nitrosamines, a potential carcinogen. The levels in drugs aren’t supposed to exceed an excess cancer risk of 1 in 100,000. The manufacturer is recalling multiple lots of the drug for the same reason. In 2020, the Food … Continue reading Pfizer Halts Sales of Chantix Due To Possible Carcinogen Contamination