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Magnesium Oxide

Dosage form
TABLET
Labeler
Westminster Pharmaceuticals, LLC
Label updated
2026-07-06
Retrieved
2026-09-07
Active ingredients
See original label
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.

Label information

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

  • May have a laxative effect.

Label information

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

Colloidal Silicon Dioxide, Corn Starch, Croscarmellose Sodium, Microcrystalline Cellulose, and Stearic Acid.

Questions?

Call 1-844-221-7294 M-F 9am - 5pm EST

PRINCIPAL DISPLAY PANEL - 400 mg Tablet Bottle Label

NDC 69367-298-20

Magnesium
Oxide 400 mg

241.3 mg Elemental Magnesium
Antacid

Sugar and Gluten Free

120 Tablets

Westminster
Pharmaceuticals

[Image in the official label — see DailyMed source]

DailyMed Set ID: 52eeac0e-94bb-48c3-81dc-578e96406c01 · Version 16
NDC: 69367-298