Product Information
MAGNESIUM OXIDE 400 MG TABLET is a generic product labeled by Method Pharmaceuticals LLC, priced at $0.0346 per EA under NDC 58657012012. Its NADAC has been published 411 times since Nov 21, 2018.
Strength
400 mg/1
Manufacturer
Method Pharmaceuticals LLCNDC
58657012012
Classification
Generic
Dosage Form
TABLET
Route
ORAL
Effective Date
9/23/2026
Active Ingredients
MAGNESIUM OXIDEApproval Type
OTC MONOGRAPH DRUG
FDA Application
M001On Market Since
7/25/2018
Pharmacological Classes
Price Statistics
The NADAC for MAGNESIUM OXIDE 400 MG TABLET has been published 411 times since Nov 21, 2018, and over the history we have for it it has risen 12.3%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.0346 per EA |
|---|---|
| All-time high | $0.0401 (Feb 10, 2021) |
| All-time low | $0.0302 (Aug 21, 2019) |
| 52-week high | $0.0358 |
| 52-week low | $0.0342 |
| Median price | $0.0344 |
| Average price | $0.0348 |
| Largest weekly change | +15.3% (Jan 22, 2020) |
| Weeks tracked | 411 |
| Tracking since | Nov 21, 2018 |
Generic Alternatives
The matcher finds 3 manufacturers offering a NADAC-published product with this drug's active ingredient and strength in a comparable dosage form (cheapest from each manufacturer, up to 10 shown below). None of the shown alternatives sit below the current price. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
Related Drugs
Same classification
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Manufacturer
Method Pharmaceuticals LLC manufacturer profile
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Drug market
Magnesium Oxide market comparison
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Therapeutic class
Calculi Dissolution Agent class view
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Trend hub
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Guide
Understanding NADAC pricing
Use the explainer when you need context on how CMS publishes NADAC and how to interpret the number on this page.
Frequently asked questions
What is the NADAC price of MAGNESIUM OXIDE 400 MG TABLET?
The current National Average Drug Acquisition Cost (NADAC) for MAGNESIUM OXIDE 400 MG TABLET, manufactured by Method Pharmaceuticals LLC, is $0.0346 per EA (NDC 58657012012), effective Sep 30, 2026.
How has the price of MAGNESIUM OXIDE 400 MG TABLET changed over time?
Over the history we have for it, the NADAC for MAGNESIUM OXIDE 400 MG TABLET has risen 12.3%. It has been tracked across 411 weekly CMS publications since Nov 21, 2018.
What are the highest and lowest recorded NADAC prices for MAGNESIUM OXIDE 400 MG TABLET?
Since Nov 21, 2018, the NADAC for MAGNESIUM OXIDE 400 MG TABLET has ranged from a low of $0.0302 (Aug 21, 2019) to a high of $0.0401 (Feb 10, 2021), with a median of $0.0344 per EA.
Are there cheaper alternatives to MAGNESIUM OXIDE 400 MG TABLET?
3 manufacturers publish a NADAC-priced product with the same active ingredient and strength as MAGNESIUM OXIDE 400 MG TABLET in a comparable dosage form, but none are currently priced below it.
Who manufactures MAGNESIUM OXIDE 400 MG TABLET?
MAGNESIUM OXIDE 400 MG TABLET (NDC 58657012012) is labeled by Method Pharmaceuticals LLC, and CMS classifies it as a generic product.