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Magnesium Oxide

In some countries, this medicine may only be approved for veterinary use.

In the US, Magnesium Oxide (magnesium oxide systemic) is a member of the drug class minerals and electrolytes and is used to treat Constipation, Duodenal Ulcer, GERD, Hypomagnesemia, Indigestion, Pathological Hypersecretory Disorder, Stomach Ulcer and Urinary Tract Stones.

US matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Pharmaceutic aid


Mineral supplement

Laxative, osmotically acting

Chemical Names

Calcined brucite

Calcined magnesia

Caustic magnesite

Magnesia usta

Magnesium Oxide (USAN)

Magnesiumoxid (IUPAC)

Foreign Names

  • Magnesii oxidum (Latin)
  • Magnesiumoxid (German)
  • Oxyde de magnésium (French)
  • Magnesio, óxido de (Spanish)

Generic Names

  • Magnesium Oxide (OS: JAN)
  • CCRIS 3659 (IS)
  • E 530 (IS)
  • EINECS 215-171-9 (IS)
  • HSDB 1652 (IS)
  • UNII-3A3U0G171G (IS)
  • Magnesium Oxide (PH: JP XVI, USP 38)
  • Magnesii oxidum ponderosum (PH: Ph. Eur. 8)
  • Magnesium oxide, heavy (PH: Ph. Eur. 8)
  • Magnesium Oxide, Heavy (PH: BP 2016)
  • Magnesiumoxid, schweres (PH: Ph. Eur. 8)
  • Magnesii oxidum leve (PH: Ph. Eur. 8)
  • Magnesium Oxide, Light (PH: BP 2016)
  • Magnesium oxide, light (PH: Ph. Eur. 8)
  • Magnesiumoxid, leichtes (PH: Ph. Eur. 8)

Brand Names


IUPACInternational Union of Pure and Applied Chemistry
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
USANUnited States Adopted Name
USPPharmacopoeia of the United States

Further information on drug naming conventions: International Nonproprietary Names.

Important Notice: The international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.