Pfizer discontinued the brand-name version in the summer of 2021 following a voluntary recall due to high levels of nitrosamine impurities. It remains discontinued in the U.S..
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Be cautious of websites offering "Champix" or "generic Chantix" without a prescription. These sites are often unregulated and may sell that have not been tested for safety or correct dosage. How to Use Varenicline | Quit Smoking - CDC Pfizer discontinued the brand-name version in the summer