Product Information
MAGNESIUM OXIDE 420 MG TABLET is a generic product labeled by Endo USA Inc., priced at $0.0385 per EA under NDC 00603021321. Its NADAC has been published 129 times since Apr 17, 2024.
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
253 mg/1
Manufacturer
Endo USA Inc.NDC
00603021321
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
11/10/2020
Pharmacological Classes
Price Statistics
The NADAC for MAGNESIUM OXIDE 420 MG TABLET has been published 129 times since Apr 17, 2024, and over the history we have for it it has declined 2.5%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.0385 per EA |
|---|---|
| All-time high | $0.0404 (May 14, 2025) |
| All-time low | $0.0369 (May 20, 2026) |
| 52-week high | $0.0397 |
| 52-week low | $0.0369 |
| Median price | $0.0394 |
| Average price | $0.0390 |
| Largest weekly change | -2.6% (Feb 18, 2026) |
| Weeks tracked | 129 |
| Tracking since | Apr 17, 2024 |
Generic Alternatives
No other NADAC-published product shares this drug's active ingredient and strength in a comparable dosage form. Compare the broader picture on the Magnesium Oxide market page.
Lowest-Cost Alternatives
No alternatives available
Related Drugs
Same classification
Continue researching this drug
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Manufacturer
Endo USA Inc. manufacturer profile
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Drug market
Magnesium Oxide market comparison
Compare this molecule across participating manufacturers and inspect the broader market price spread.
Therapeutic class
Calculi Dissolution Agent class view
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Trend hub
Latest market trends
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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 420 MG TABLET?
The current National Average Drug Acquisition Cost (NADAC) for MAGNESIUM OXIDE 420 MG TABLET, manufactured by Endo USA Inc., is $0.0385 per EA (NDC 00603021321), effective Sep 30, 2026.
How has the price of MAGNESIUM OXIDE 420 MG TABLET changed over time?
Over the history we have for it, the NADAC for MAGNESIUM OXIDE 420 MG TABLET has declined 2.5%. It has been tracked across 129 weekly CMS publications since Apr 17, 2024.
What are the highest and lowest recorded NADAC prices for MAGNESIUM OXIDE 420 MG TABLET?
Since Apr 17, 2024, the NADAC for MAGNESIUM OXIDE 420 MG TABLET has ranged from a low of $0.0369 (May 20, 2026) to a high of $0.0404 (May 14, 2025), with a median of $0.0394 per EA.
Are there cheaper alternatives to MAGNESIUM OXIDE 420 MG TABLET?
No other NADAC-published product currently shares the active ingredient and strength of MAGNESIUM OXIDE 420 MG TABLET in a comparable dosage form, so no direct lower-cost alternative is listed.
Who manufactures MAGNESIUM OXIDE 420 MG TABLET?
MAGNESIUM OXIDE 420 MG TABLET (NDC 00603021321) is labeled by Endo USA Inc., and CMS classifies it as a generic product.