Product Information
MAGNESIUM OXIDE 400 MG TABLET is a generic product labeled by Endo USA Inc., priced at $0.0350 per EA under NDC 00603020922. Its NADAC has been published 650 times since Nov 28, 2013.
The High Outlier badge above means this manufacturer's average price in the Magnesium Oxide market falls above Q3 + 1.5·IQR across all competing manufacturers. We only apply this flag in markets with four or more competitors. Full definition: glossary → outlier.
Strength
400 mg/1
Manufacturer
Endo USA Inc.NDC
00603020922
Classification
Generic
Dosage Form
TABLET
Route
ORAL
Last Updated
6/17/2026
Active Ingredients
MAGNESIUM OXIDEApproval Type
OTC MONOGRAPH DRUG
FDA Application
M001On Market Since
7/1/2014
Pharmacological Classes
Price Statistics
The NADAC for MAGNESIUM OXIDE 400 MG TABLET has been published 650 times since Nov 28, 2013, and over the history we have for it it has risen 20.9%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.0350 per EA |
|---|---|
| All-time high | $0.0404 (Jul 12, 2017) |
| All-time low | $0.0251 (Jun 18, 2014) |
| 52-week high | $0.0366 |
| 52-week low | $0.0342 |
| Median price | $0.0340 |
| Average price | $0.0337 |
| Largest weekly change | +27.1% (Dec 21, 2016) |
| Weeks tracked | 650 |
| Tracking since | Nov 28, 2013 |
Generic Alternatives
The matcher finds 3 NADAC-published products sharing this drug's active ingredient, strength, and dosage form across 3 manufacturers (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.
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 Endo USA Inc., is $0.0350 per EA (NDC 00603020922), effective Jun 24, 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 20.9%. It has been tracked across 650 weekly CMS publications since Nov 28, 2013.
What are the highest and lowest recorded NADAC prices for MAGNESIUM OXIDE 400 MG TABLET?
Since Nov 28, 2013, the NADAC for MAGNESIUM OXIDE 400 MG TABLET has ranged from a low of $0.0251 (Jun 18, 2014) to a high of $0.0404 (Jul 12, 2017), with a median of $0.0340 per EA.
Are there cheaper alternatives to MAGNESIUM OXIDE 400 MG TABLET?
3 NADAC-published products share the same active ingredient, strength, and dosage form as MAGNESIUM OXIDE 400 MG TABLET, but none are currently priced below it.
Who manufactures MAGNESIUM OXIDE 400 MG TABLET?
MAGNESIUM OXIDE 400 MG TABLET (NDC 00603020922) is labeled by Endo USA Inc., and CMS classifies it as a generic product.
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