50% Magnesium Sulfate

50% Magnesium Sulfate · MAGNESIUM SULFATE HEPTAHYDRATE 500 mg/mL · Injection, Solution · Intramuscular; Intravenous · HF Acquisition Co. LLC, DBA Health First

NDC 51662-1235-01 · 1 SYRINGE, PLASTIC in 1 CARTON / 10 mL in 1 SYRINGE, PLASTIC · ANDA · View full market →

The short version

Only one company currently supplies this market — there is no backup if it stumbles.

The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.

Medicare Part D

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 →

NADAC price per unit

No NADAC pricing on file for this NDC — NADAC covers drugs dispensed by retail community pharmacies.

Medicare Part B (ASP)

Payment limit per 500 MG

$0.446

HCPCS J3475 · Jul 1, 2026 quarter · typically ASP + 6%

Supply fragility

Not scored — fragility is computed for NADAC-priced NDCs.

Is this a "specialty" drug?

There's no legal definition — it meets 1 of 6 public criteria. Why that matters →

Part D specialty tier
Costs ≥ $950/fill
Biologic (BLA)
Injectable / infused
Orphan-drug exclusivity
REMS program

Regulatory

Application: ANDA075151
TE code: AP
Approval date: Apr 25, 2000
Patents / exclusivity: None on file

Shortage history

No FDA shortage reports for this drug or its presentations.

Recalls (this NDC)

No enforcement reports list this package NDC.

Manufacturers of 50% Magnesium Sulfate (Injection, Solution)

Labeler	Strength	First seen	Last seen
HF Acquisition Co. LLC, DBA Health First	MAGNESIUM SULFATE HEPTAHYDRATE 500 mg/mL	Jul 15, 2026	Sep 2, 2026

Roster from daily NDC Directory diffs — first/last seen dates start July 2026.

Cite this page

DrugDashboards, "50% Magnesium Sulfate — NDC 51662-1235-01," retrieved September 3, 2026, https://drugdashboards.com/drug/51662123501.

Free to cite with attribution — see how the data is put together.