DrugDashboards

Epsom Salt

Magnesium sulfate · MAGNESIUM SULFATE HEPTAHYDRATE 1 g/g · Granule, For Solution · Oral; Topical · Chain Drug Marketing Association

NDC 83324-0175-16 · 454 g in 1 POUCH · OTC MONOGRAPH DRUG · View full market →

The short version

20 companies supply this market — deep enough that no single failure threatens the supply. The price has held steady around $0.0039 per gram over the past year. Put together: this looks like a healthy supply — the boring kind, which is exactly what you want.

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

One drug, every price

The same NDC has different prices depending on who is paying. Units differ between rungs — compare within a rung over time, not rung against rung, unless the units match.

ⓘ How this was built
Data sources
  • CMS NADAC (pharmacy acquisition, weekly)
  • CMS Part B ASP quarterly payment limits
  • CMS Maximum Fair Prices (IRA negotiated, NDC-level)
  • Medicare Part D Spending by Drug (data.cms.gov, name-matched)
  • VA FSS / Big4 federal contract prices (va.gov, twice monthly)
  • ACA Federal Upper Limits + weighted AMP (data.medicaid.gov, monthly)
  • California SB-17 WAC filings (list price, per package)
Method

Each rung is the newest figure for this NDC from one federal price system, shown with its own unit. Part D is matched by drug name because CMS publishes no NDCs there; it is gross spending, before confidential rebates.

Pipeline and calculations built by Claude (Fable 5) from the public datasets above. Educational only — verify against primary sources before acting.

  • Pharmacies pay (NADAC)$0.0039per GMinvoice-surveyed acquisition cost · Aug 19, 2026
  • Part D plans paid (avg)$0.1460per dosage unitgross, before rebates — matched by drug name · 2024

Medicare Part D

Medicare Part D does not cover over-the-counter drugs — by law it pays only for products requiring a prescription.

How Part D pricing works →

NADAC price per unit

$0$0.002$0.004Apr 2025Sep 2026$0.0039
18 price points · per GMSource: CMS NADAC

Supply fragility

0● Low risk

Nothing here is signaling trouble: several manufacturers, no current shortage, no recent serious recalls, stable pricing. In drug supply, boring is the good outcome.

The score counts pressure that is already visible — fewer makers, shortages, recalls, falling prices. 0 means none of it; 100 means all of it at once. Recomputed daily · as of Sep 3, 2026

90-day shortage risk (model v2)

0.1%chance of a new FDA shortage posting for magnesium sulfate (other) in the next 90 days

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 →

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 · avg $18.25 per prescription
  • Biologic (BLA)
  • Injectable / infused
  • Orphan-drug exclusivity
  • REMS program · Xywav and Xyrem

Regulatory

Application
M007
TE code
—
Approval date
—
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 Magnesium sulfate (Granule, For Solution)

LabelerStrengthFirst seenLast seen
Amazon.com Services LLCMAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Chain Drug Marketing AssociationMAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
CVS Pharmacy, Inc.MAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Discount Drug MartMAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Filo AmericaMAGNESIUM SULFATE, UNSPECIFIED FORM 1 kg/kgJul 15, 2026Sep 2, 2026
Grocery Outlet, Inc.MAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Harris TeeterMAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Hy-Vee, Inc.MAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Meijer, Inc.MAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Old East Main Co.MAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Retail Business Services, LLCMAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Safeway IncMAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Target CorporationMAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
United Natural Foods, Inc. dba UNFIMAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Valu Merchandisers CompanyMAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Vi-Jon, LLCMAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Walgreen Co.MAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Whole Foods Market, Inc.MAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Your Military ExchangesMAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Sep 2, 2026
Topco Associates LLCMAGNESIUM SULFATE HEPTAHYDRATE 1 g/gJul 15, 2026Aug 31, 2026

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

Cite this page

DrugDashboards, "Epsom Salt — NDC 83324-0175-16," retrieved September 3, 2026, https://drugdashboards.com/drug/83324017516.

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