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FDAClass III

Primidone Tablets, USP, 250 mg, 100-count bottle, RX only, Manufactured by: Lannett Compa… Recalled: Cross contamination with other products: API contaminated with trace amounts of Acemetaci…

Primidone Tablets, USP, 250 mg, 100-count bottle, RX only,… was recalled on April 27, 2026 in cooperation with the U.S. Food and Drug Administration because cross contamination with other products: API contaminated with trace amounts of Acemetacin API..

Is my unit affected?

Primidone Tablets, USP, 250 mg, 100-count bottle, RX only, Manufactured by: Lannett Company, Inc., Marketed by: GSMS, Incorporated, Camarillo, CA 93012. NDC 51407-638-01

Model, lot & date codes to check

Lot #: GS067909, Exp 4/30/2028; GS068646, Exp 8/31/2026

Units affected: 1,620 bottles

Where it was sold: USA Nationwide

Compare the codes above against the label on your product — usually on the bottom, the back panel, or the packaging. If your unit isn't listed, it is not part of this recall.

What's the hazard?

Cross contamination with other products: API contaminated with trace amounts of Acemetacin API.

Class III means the product is unlikely to cause a health problem, but it violates FDA labeling or manufacturing rules.

Your remedy & how to claim it

Stop using the product. Return it to the place of purchase for a refund, or dispose of it. Contact the recalling firm with questions.

Contact: Recalling firm: Golden State Medical Supply Inc.

Not sure what you're entitled to? Read our guide: what to do if your product is recalled.

Official recall notice

Always confirm details on the official notice from the U.S. Food and Drug Administration before acting.

View official notice →

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