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Magnesium Oxide

Dosage form
TABLET
Labeler
Method Pharmaceuticals, LLC
Label updated
2025-10-21
Retrieved
2026-09-07
Active ingredients
MAGNESIUM OXIDE
View original label and images on DailyMed ↗
Label information

Drug Facts

Active ingredient

Magnesium Oxide 400 mg

(241.3 mg Elemental Magnesium)

Purpose

Antacid

Use

relieves: ■ acid indigestion ■ upset stomach

Warnings

Ask a doctor before use if

  • you have kidney disease
  • you are taking a prescription drug (antacids may interact with certain prescription drugs)
  • you are pregnant or breast feeding.

Do not take more than 2 tablets in a 24 hour period.

  • May have a laxative effect.

Keep out of reach of children.

Directions
  • take one or two antacid tablets daily. Do not exceed two tablets unless directed by a physician.
Other information
  • Store at controlled room temperature 15° to 30°C (59° to 86°F).
  • Tamper evident, do not use if imprinted safety seal under cap is broken or missing.
Inactive ingredients

Croscarmellose Sodium, Microcrystalline Cellulose, Silicon Dioxide, and Stearic Acid.

Questions?

Call Method at 1-877-250-3427 or FDA at 1-800-FDA-1088

Manufactured for:
Method Pharmaceuticals, LLC
Fort Worth, Texas 76118

Rev. 04/18

Principal Display Panel

NDC 58657-120-12

Magnesium Oxide

400 mg

241.3 Elemental Magnesium

Antacid

120 Tablets

[Image in the official label — see DailyMed source]

DailyMed Set ID: 0af63651-f9d9-43b9-b6f0-4878466a82e6 · Version 7
NDC: 58657-120