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Magnesium Sulfate

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

In the US, Magnesium Sulfate (magnesium sulfate systemic) is a member of the following drug classes: laxatives, minerals and electrolytes, miscellaneous anticonvulsants and is used to treat Barium Poisoning, Hypomagnesemia, Seizure Prevention and Ventricular Arrhythmia.

US matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Dermatological agent

Mineral supplement

Laxative, osmotically acting

Used in electrolyte solutions

Diagnostic agent, test for bilde duct patency

Chemical Name

Sulfuric acid magnesium salt (1:1), x hydrate (USP)

Foreign Names

Generic Names

  • Magnesium Sulfate Hydrate (OS: JAN)
  • Bitter salt (IS)
  • Bittersalz (IS)
  • Epsom salt (IS)
  • Magnesii sulfatis heptahydras (IS)
  • Magnesium sulfat-7-Wasser (IS)
  • Magnesii sulfas heptahydricus (PH: Ph. Eur. 8)
  • Magnesium Sulfate (PH: USP 38)
  • Magnesium sulfate heptahydrate (PH: Ph. Eur. 8)
  • Magnesium Sulfate Heptahydrate (PH: BP 2016)
  • Magnesium Sulfate Hydrate (PH: JP XVI)
  • Magnesiumsulfat-Heptahydrat (PH: Ph. Eur. 8)

Brand Names


ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia 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.