Pfizer is Now Named Comirnaty
Marisa Lloyd

Pfizer is Now Named Comirnaty

Washington Department of Health

After Pfizer’s COVID-19 vaccine was FDA approved, it took on the new name Comirnaty. However, even though the name changed, the vaccine remains the same.

Before a vaccine (or any product) gets FDA approval, it’s known by the company that created it (Pfizer, Moderna, Johnson & Johnson, etc.). Once an FDA approval is granted, the company selects a brand name for use in the U.S. Until that time, the company is not allowed to advertise or use a brand name, even with an Emergency Use Authorization (EUA).

For now, everything about the vaccine remains the same, including its ingredients and formulations. The only change is the name.

Manufacturers may still change things in the future, like packaging or the way it is administered, but the ingredients and the formulation will stay exactly the same. Any changes that affect a vaccine’s safety or how it works are strictly forbidden and would require a reassessment by the FDA.

Pfizer decided on the name Comirnaty back in December 2020. According to Pfizer, the name Comirnaty (pronounced Koe-mir’-na-tee) was selected because it “represents a combination of the terms COVID-19, mRNA, community, and immunity.”

Moderna is expected to go by the name Spikevax in the U.S. if FDA approval is granted. The company is already using Spikevax in Europe and Canada. AstraZeneca, makers of a COVID-19 vaccine that’s used in many other countries outside the U.S., also goes by the international brand name Vaxzevria.

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