The short version
16 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.
Naloxone Hydrochloride · NALOXONE HYDROCHLORIDE 4 mg/.1mL · Spray · Nasal · CVS Pharmacy, Inc
NDC 51316-0210-02 · 2 VIAL in 1 CARTON / .1 mL in 1 VIAL · ANDA · View full market →
16 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.
OAI inspection at a producing facility (24 months) · 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 | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Jul 15, 2026 | Sep 3, 2026 |
| Amneal Pharmaceuticals LLC | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Aug 27, 2026 | Sep 3, 2026 |
| Advanced Rx of Tennessee, LLC | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Jul 15, 2026 | Sep 2, 2026 |
| Amerisource Bergen | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Jul 15, 2026 | Sep 2, 2026 |
| AvKARE | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Jul 15, 2026 | Sep 2, 2026 |
| BluePoint Laboratories | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Jul 15, 2026 | Sep 2, 2026 |
| Bryant Ranch Prepack | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Jul 15, 2026 | Sep 2, 2026 |
| CVS Pharmacy, Inc | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Jul 15, 2026 | Sep 2, 2026 |
| Harm Reduction Therapeutics, Inc. | NALOXONE HYDROCHLORIDE 3 mg/.1mL | Jul 15, 2026 | Sep 2, 2026 |
| HF Acquisition Co LLC, DBA HealthFirst | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Jul 15, 2026 | Sep 2, 2026 |
| International Medication Systems, Ltd. | NALOXONE HYDROCHLORIDE 4 mg/.25mL | Jul 15, 2026 | Sep 2, 2026 |
| Padagis Israel Pharmaceuticals Ltd | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Jul 15, 2026 | Sep 2, 2026 |
| Strategic Sourcing Services LLC | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Jul 15, 2026 | Sep 2, 2026 |
| Walgreen Co. | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Jul 15, 2026 | Sep 2, 2026 |
| Proficient Rx LP | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Jul 15, 2026 | Aug 28, 2026 |
| Amneal Pharmaceuticals NY LLC | NALOXONE HYDROCHLORIDE 4 mg/.1mL | Jul 15, 2026 | Aug 26, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
DrugDashboards, "Naloxone Hydrochloride — NDC 51316-0210-02," retrieved September 3, 2026, https://drugdashboards.com/drug/51316021002.
Free to cite with attribution — see how the data is put together.