CLASS III ONGOING Drug recall · Reported 27 May 2026 · FDA Enforcement Report

Primidone Tablets USP, 250mg recalled by Lannett Company

Lannett is recalling Primidone Tablets USP, 250mg, distributed nationwide in the US. The recall was initiated on 24 Apr 2026 and the FDA has classified it as Class III.

Check your package

Lot, batch or date codesLot#: 25283038A, Exp 1/31/2028; 25283564A, 25283565A, Exp 3/31/2028; 25285712A Exp 08/31/2028; 25284105A, Exp 4/30/2028; 25284874A, 25284875A, Exp 08/31/2028.
NDC0527-1231, 0527-1301
UPC0305871231011
Quantity recalled44865 bottles

Check the lot number on your package against the affected lots. If it matches, contact the pharmacy that dispensed it or your prescriber before stopping any medication.

Recall details

Recall number
D-0533-2026
FDA event ID
98791
Recalling firm
Lannett, Seymour, IN
Manufacturer
Lannett Company, Inc.
Classification
Class III
Status
Ongoing
Recall initiated
24 Apr 2026
FDA classified
18 May 2026
Reported
27 May 2026
Type
Voluntary: Firm initiated
Customers notified by
Letter
Reason category
Other Reasons

Timeline

24 Apr 2026Recall initiated by company
18 May 2026Classified by FDA+24 days
27 May 2026Published in enforcement report+9 days

Companies usually start a recall weeks before the FDA classifies and publishes it; the gap above is that lag.

Reason for recall

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

Product as listed by the FDA

Primidone Tablets USP, 250mg, 100-count bottle, Rx only, Distributed by: Lannett Company, Inc., Philadelphia, PA 19136, NDC 0527-1231-01.

Where it was distributed

USA Nationwide

Nationwide

Questions about this recall

Why was it recalled?

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

Which lots are affected?

Lot#: 25283038A, Exp 1/31/2028; 25283564A, 25283565A, Exp 3/31/2028; 25285712A Exp 08/31/2028; 25284105A, Exp 4/30/2028; 25284874A, 25284875A, Exp 08/31/2028.

Where was it sold?

USA Nationwide

What should I do if I have it?

Check the lot number on your package against the affected lots. If it matches, contact the pharmacy that dispensed it or your prescriber before stopping any medication.

What does Class III mean?

Class III recalls are for products unlikely to cause any adverse health consequence, usually labelling or quality issues.

Read the official FDA notice · Source record retrieved 26 Sep 2026. The FDA describes openFDA data as unvalidated; the official notice takes precedence. This page reports the record and gives no medical advice.

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