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Dimethyl Sulfone

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

CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Dietary supplement

Anti-inflammatory agent

Chemical Names

Metane, 1,1'-sulfonylbis-


Foreign Name

  • Dimethyl sulfon (German)

Generic Names

  • CCRIS 2938 (IS)
  • DMSO₂ (IS)
  • Methyl Sulphone (IS)
  • Methylsulfonylmethane (IS)
  • MSM (IS)
  • NSC 63345 (IS)
  • Methylsulfonylmethane (PH: USP 37)

Brand Names

  • Fremov (Dimethyl Sulfone and Glucosamine)
    East West, India
  • MSM (veterinary use)
    Bomac, New Zealand
  • Osicare (Dimethyl Sulfone and Glucosamine)
    Systopic, India
  • Transam (veterinary use)
    Ceva Animal Health, Australia

International Drug Name Search


ISInofficial Synonym
PHPharmacopoeia Name

Click for further information on drug naming conventions and 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.