| 66490-690 | Mysoline | Primidone | Valeant Pharmaceuticals North America | NDA | Current |
| 66490-690 | Mysoline | Primidone | Bausch Health US, LLC | NDA | Current |
| 66490-690 | Mysoline | Primidone | Bausch Health US, LLC | NDA | Current |
| 66490-690 | Mysoline | Primidone | Bausch Health US, LLC | NDA | Current |
| 66490-690 | Mysoline | Primidone | Bausch Health US, LLC | NDA | Current |
| 66490-691 | Mysoline | Primidone | Valeant Pharmaceuticals North America | NDA | Current |
| 66490-691 | Mysoline | Primidone | Bausch Health US, LLC | NDA | Current |
| 66490-691 | Mysoline | Primidone | Bausch Health US, LLC | NDA | Current |
| 66490-691 | Mysoline | Primidone | Bausch Health US, LLC | NDA | Current |
| 66490-691 | Mysoline | Primidone | Bausch Health US, LLC | NDA | Current |
| 68682-690 | Primidone | Primidone | Oceanside Pharmaceuticals | NDA AUTHORIZED GENERIC | Current |
| 68682-690 | Primidone | Primidone | Oceanside Pharmaceuticals | NDA AUTHORIZED GENERIC | Current |
| 68682-691 | Primidone | Primidone | Oceanside Pharmaceuticals | NDA AUTHORIZED GENERIC | Current |
| 68682-691 | Primidone | Primidone | Oceanside Pharmaceuticals | NDA AUTHORIZED GENERIC | Current |