| 0054-3556 | Methadone Hydrochloride | Methadone Hydrochloride | West-Ward Pharmaceuticals Corp. | ANDA | Current |
| 0054-3556 | Methadone Hydrochloride | Methadone Hydrochloride | Hikma Pharmaceuticals USA Inc. | ANDA | Current |
| 0054-3556 | Methadone Hydrochloride | Methadone Hydrochloride | Hikma Pharmaceuticals USA Inc. | ANDA | Current |
| 0054-3556 | Methadone Hydrochloride | Methadone Hydrochloride | West-Ward Pharmaceuticals Corp. | ANDA | Current |
| 0054-3556 | Methadone Hydrochloride | Methadone Hydrochloride | West-Ward Pharmaceuticals Corp. | ANDA | Current |
| 0054-3556 | Methadone Hydrochloride | Methadone Hydrochloride | West-Ward Pharmaceuticals Corp. | ANDA | Current |
| 0054-3556 | Methadone Hydrochloride | Methadone Hydrochloride | West-Ward Pharmaceuticals Corp. | ANDA | Current |
| 17856-3556 | Methadone Hydrochloride | Methadone Hydrochloride | Atlantic Biologicals Corps | ANDA | Current |
| 17856-3556 | Methadone Hydrochloride | Methadone Hydrochloride | ATLANTIC BIOLOGICALS CORP. | ANDA | Current |
| 17856-3556 | Methadone Hydrochloride | Methadone Hydrochloride | ATLANTIC BIOLOGICALS CORP. | ANDA | Current |