June 24 (Reuters) – Pfizer Inc (PFE.N) said on Thursday it is pausing distribution of its anti-smoking treatment, Chantix, after finding elevated levels of cancer-causing agents called nitrosamines in the pills.
The drugmaker is recalling a number of lots of the anti-smoking drug. The U.S. drug regulator has in the past reached out to companies whose drugs had N-nitrosodimethylamine (NDMA) over accepted levels.
The Food and Drug Administration (FDA) last year found high levels of NDMA in some versions of the popular diabetes drug metformin. NDMA contamination was responsible for the recall of heartburn drug Zantac sold by Sanofi SA (SASY.PA) in 2019.