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Pharmaceutical company Pfizer has halted distribution of Chantix after finding elevated levels of a carcinogen in some lots of the popular anti-smoking drug.
The drug maker announced Thursday, June 24, that it had discovered levels of N-nitrosodimethylamine — a known cancer-causing agent that is also known as NDMA — that are above an “acceptable” level of daily intake, and has begun running tests, Stat reported.
According to Reuters, Pfizer is recalling affected lots, and said the pause in distribution is out of an abundance of caution.
“The benefits of Chantix outweigh the very low potential risks, if any, posed by nitrosamine exposure from varenicline on top of other common sources over a lifetime,” Pfizer spokesperson Steven Danehy told Reuters in an email.
The FDA has not recalled Chantix as of June 25, but Canadian health authorities did issue a recall for Champix, the drug’s name in that country, on June 8.
It’s far from the first time a drug or other product has been recalled for higher-than-expected levels of carcinogens. The FDA issued a warning about NDMA in ranitidine drugs, including the heartburn medication Zantac, in September 2019. Zantac was later voluntarily recalled by the manufacturer before the FDA issued a widespread recall request for ranitidine medications.
And in May, independent lab Valisure asked the FDA to remove 78 sunscreens from the market after detecting benzene, another known carcinogen.
Have you purchased Chantix and are now worried about carcinogens potentially being present in the drug? Let us know in the comments!
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99 thoughts onPfizer Halts Distribution of Chantix After Finding Carcinogen
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I have taken this 3-4 times for several months at a time, please keep me posted as i have health complications but i am not sure at the moment if its from the chantix including cyst to which i did not have before the use of this medication and i see someone else wrote about cyst.
Please add me as well. I also have taken it 3 times. I’ve developed something where my heart skips a beat since taking it. I also had a mammogram showing a mass or cysts in my brrasts.
Please add me as well
I took this in 2020! So irresponsible of them. I want to sue!
I developed a Severe rash with blistering after 12 days of taking chantix, and still have gross discoloration on my skin after about a month…. seeing my doctor today…….to see if she thinks this discoloration will ever go away???
Yes add me
Please add.. I have taken it
Yes, I’ve taken it and it made me have weird dreams and night sweats. Stopped taking it after a few months. Add me please
I’ve taken chantix on 3 separate occasions. First time I took it for 9 months. Second time, a couple of months. Third time, again a couple of months. Still have a couple boxes left., from a 6 month supply. Had bad reactions all three times taking it.