PRIMIDONE
According to the official FDA enforcement report:
Cross Contamination with Other Products: due to a potential for cross-contamination with Acemetacin API due to an issue at the API manufacturer.
Primidone Tablets, USP, 50 mg, 100 Tablets per Bottle, Rx only, Manufactured by: Amneal Pharmaceuticals Pvt. Ltd., Oral Solid Dosage Unit, Ahmedabad 382213, INDIA. Distributed by: Amneal Pharmaceuticals LLC, Bridgewater, NJ 08807. NDC: 53746-544-01
Nationwide within the USA.
Official Source Provenance
Verified regulatory citation from U.S. FDA OpenFDA