PillPrimidone
Brands: Mysoline · Primidone
20 active makers
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US acquisition costNADAC · per unit
Average across 26 priced NDCs. A benchmark of pharmacy acquisition cost — not a retail quote.
Medicaid dispensing volumeSDUD · per quarter
Prescriptions dispensed under Medicaid (fee-for-service + managed care), summed nationally. The closest free proxy to sales volume — Medicaid only, not all-payer.
Who makes it20 active · 1 exited
US labelers as registered with FDA. Repackagers relabel another company's product; share* is of listed packages, not sales.
| Labeler | Type | Packages | Status |
|---|---|---|---|
| Proficient Rx LP | unknown | 14 | SUPPLYING |
| Aphena Pharma Solutions - Tennessee, LLC | unknown | 13 | SUPPLYING |
| Dr.Reddy's laboratories Limited | unknown | 10 | SUPPLYING |
| Advagen Pharma Ltd | unknown | 8 | SUPPLYING |
| PD-Rx Pharmaceuticals, Inc. | unknown | 6 | SUPPLYING |
| Amneal Pharmaceuticals LLC | unknown | 6 | SUPPLYING |
| Carnegie Pharmaceuticals LLC | unknown | 6 | SUPPLYING |
| Amneal Pharmaceuticals of New York LLC | unknown | 6 | SUPPLYING |
| Bryant Ranch Prepack | repackager | 6 | SUPPLYING |
| Lannett Company, Inc. | unknown | 6 | SUPPLYING |
| Oxford Pharmaceuticals, LLC | unknown | 4 | SUPPLYING |
| Golden State Medical Supply, Inc. | unknown | 3 | SUPPLYING |
| TRUPHARMA, LLC | unknown | 3 | SUPPLYING |
| NorthStar Rx LLC | unknown | 3 | SUPPLYING |
| American Health Packaging | unknown | 2 | SUPPLYING |
+ 6 more labelers
Regulatory & supply eventsFDA · US
Shortages, recalls, and registration changes attached to this drug concept.
- Jun 3, 2026RECALLRecall (Class III): Primidone Tablets, USP, 50 mg, 100 Tablets per Bottle, Rx only, Manufactured by: Amneal Pharmaceuticals Pvt. Ltd., Oral…
Cross Contamination with Other Products: due to a potential for cross-contamination with Acemetacin API due to an issue at the API manufacturer. — Recalling firm: Amneal Pharmaceuticals, LLC — Nationwide within the USA.
- May 1, 2026RECALLRecall (Class III): Primidone Tablets, USP, 250 mg, 100 Tablets (10 x 10 unit dose blister) per carton, Rx only, Distributed by: American H…
Cross contamination with other products: API contaminated with trace amounts of Acemetacin API. — Recalling firm: Amerisource Health Services LLC — USA Nationwide
- May 1, 2026RECALLRecall (Class III): Primidone Tablets, USP, 50 mg, 100 Tablets (10 x 10 unit dose blister) per carton, Rx only, Distributed by: American He…
Cross contamination with other products: API contaminated with trace amounts of Acemetacin API. — Recalling firm: Amerisource Health Services LLC — USA Nationwide
- Apr 27, 2026RECALLRecall (Class III): Primidone Tablets, USP, 250 mg, 100-count bottle, RX only, Manufactured by: Lannett Company, Inc., Marketed by: GSMS, I…
Cross contamination with other products: API contaminated with trace amounts of Acemetacin API. — Recalling firm: Golden State Medical Supply Inc. — USA Nationwide
- Apr 27, 2026RECALLRecall (Class III): Primidone Tablets, USP, 50 mg, 50-count bottle, RX only, Manufactured by: Lannett Company, Inc., Marketed by: GSMS, Inc…
Cross contamination with other products: API contaminated with trace amounts of Acemetacin API. — Recalling firm: Golden State Medical Supply Inc. — USA Nationwide
- Apr 24, 2026RECALLRecall (Class III): Primidone Tablets USP, 250mg, 100-count bottle, Rx only, Distributed by: Lannett Company, Inc., Philadelphia, PA 19136,…
Cross contamination with other products: API contaminated with trace amounts of Acemetacin API. — Recalling firm: Lannett Company Inc. — USA Nationwide