The short version
12 companies supply this market — deep enough that no single failure threatens the supply.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
Spironolactone · SPIRONOLACTONE 50 mg/1 · Tablet, Coated · Oral · Coupler LLC
NDC 67046-0613-03 · 30 TABLET, COATED in 1 BLISTER PACK · ANDA · View full market →
12 companies supply this market — deep enough that no single failure threatens the supply.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
No Medicare Part D plan in CMS's quarterly files lists this product. That usually means it is discontinued, a repackager's listing, or a product no plan has added to its formulary.
How Part D pricing works →No NADAC pricing on file for this NDC — NADAC covers drugs dispensed by retail community pharmacies.
Not scored — fragility is computed for NADAC-priced NDCs.
sole-source market
For scale: the typical drug’s chance is about 0.1% — this one is in ordinary territory.
Backtested statistical model over the whole market, not this package alone. Model details →
No FDA shortage reports for this drug or its presentations.
No enforcement reports list this package NDC.
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| A-S Medication Solutions | SPIRONOLACTONE 25 mg/1 | Jul 15, 2026 | Sep 3, 2026 |
| Proficient Rx LP | SPIRONOLACTONE 100 mg/1 | Jul 15, 2026 | Sep 3, 2026 |
| Proficient Rx LP | SPIRONOLACTONE 25 mg/1 | Jul 15, 2026 | Sep 3, 2026 |
| A-S Medication Solutions | SPIRONOLACTONE 100 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Asclemed USA, Inc. | SPIRONOLACTONE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Asclemed USA, Inc. | SPIRONOLACTONE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Asclemed USA, Inc. | SPIRONOLACTONE 100 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Coupler LLC | SPIRONOLACTONE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Coupler LLC | SPIRONOLACTONE 100 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Coupler LLC | SPIRONOLACTONE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Direct_Rx | SPIRONOLACTONE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Direct_Rx | SPIRONOLACTONE 100 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Direct_Rx | SPIRONOLACTONE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| NuCare Pharmaceuticals, Inc. | SPIRONOLACTONE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| NuCare Pharmaceuticals,Inc. | SPIRONOLACTONE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Oxford Pharmaceuticals, LLC | SPIRONOLACTONE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Oxford Pharmaceuticals, LLC | SPIRONOLACTONE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Oxford Pharmaceuticals, LLC | SPIRONOLACTONE 100 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| PD-Rx Pharmaceuticals, Inc. | SPIRONOLACTONE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| PD-Rx Pharmaceuticals, Inc. | SPIRONOLACTONE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| PD-Rx Pharmaceuticals, Inc. | SPIRONOLACTONE 100 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Preferred Pharmaceuticals Inc. | SPIRONOLACTONE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Preferred Pharmaceuticals Inc. | SPIRONOLACTONE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Preferred Pharmaceuticals, Inc | SPIRONOLACTONE 100 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Remedyrepack Inc. | SPIRONOLACTONE 100 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Remedyrepack Inc. | SPIRONOLACTONE 25 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Remedyrepack Inc. | SPIRONOLACTONE 50 mg/1 | Jul 15, 2026 | Sep 2, 2026 |
| Proficient Rx LP | SPIRONOLACTONE 50 mg/1 | Jul 15, 2026 | Aug 31, 2026 |
| A-S Medication Solutions | SPIRONOLACTONE 50 mg/1 | Jul 15, 2026 | Aug 28, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
DrugDashboards, "Spironolactone — NDC 67046-0613-03," retrieved September 3, 2026, https://drugdashboards.com/drug/67046061303.
Free to cite with attribution — see how the data is put together.