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In the US, Metformin (metformin systemic) is a member of the drug class non-sulfonylureas and is used to treat Diabetes - Type 2, Diabetes - Type 3c, Female Infertility, Insulin Resistance Syndrome and Polycystic Ovary Syndrome.

US matches:

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Oral antidiabetic agent: Biguanide

Chemical Name

Imidodicarbonimidic diamide, N,N-dimetyl-

Foreign Names

Generic Names

  • Metformin (OS: USAN, BAN)
  • Metformina (OS: DCIT)
  • Metformine (OS: DCF)
  • Dimethylbiguanid (IS)
  • Metformine pamoate (IS)
  • Metformin Hydrochloride (OS: BANM, JAN, USAN)
  • Diabefagos (IS)
  • Dimethylbiguanide hydrochloride (IS)
  • Haurymellin (IS)
  • LA 6023 (Lipha) (IS)
  • Metformin Hydrochloride (PH: BP 2018, JP XVII, USP 41)
  • Metformin hydrochloride (PH: Ph. Eur. 9)
  • Metformine (chlorhydrate de) (PH: Ph. Eur. 9)
  • Metforminhydrochlorid (PH: Ph. Eur. 9)
  • Metformini hydrochloridum (PH: Ph. Eur. 9)

Brand Names


BANBritish Approved Name
BANMBritish Approved Name (Modified)
DCFDénomination Commune Française
DCITDenominazione Comune Italiana
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name

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.