$44M Chantix Nitrosamine Contamination Settlement

Closed · Claim deadline was September 14, 2026 · Published August 10, 2026 · Updated September 21, 2026

Am I eligible for the Pfizer settlement?

You qualify if you paid any amount of money for a retail purchase of Chantix in the United States or its territories between September 29, 2015 and September 17, 2021. You will need documentation of what you paid, such as pharmacy receipts or credit card statements. The class period is September 29, 2015 to September 17, 2021.

What is this settlement about?

Pfizer allegedly failed to follow current good manufacturing practices, which let its Chantix stop-smoking pills become contaminated with a nitrosamine. Nitrosamines are probable human carcinogens that have been linked to stomach, liver and other cancers. Pfizer denies wrongdoing but agreed to a $44 million settlement.

How to file a claim

This settlement is closed. See settlements that are still open.

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Frequently asked questions

When is the deadline for the Pfizer settlement?

The claim deadline was September 14, 2026. The claim window is closed.

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Sensor Tower is not a law firm, does not provide legal advice, and is not affiliated with any court or settlement administrator. Some listings are attorney advertising. Sensor Tower has commercial relationships with law firms and with advertising agencies, and may receive compensation when you submit your information.