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

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Antibacterial: Cephalosporin, cephalosporinase-sensitive

Chemical Name

5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[(aminophenylacetyl)amino]-3-methyl-8-oxo-, [6R-[6α,7β(R*)]]-

Foreign Names

Generic Names

  • Cefalexin (OS: BAN)
  • Cefalexina (OS: DCIT)
  • Céfalexine (OS: DCF)
  • Cephalexin (IS)
  • Lilly 66873 (IS)
  • SQ 20248 (IS)
  • Cefalexin (PH: JP XV)
  • Cephalexin (PH: USP 34)
  • Cefalexin (OS: BANM, JAN)
  • Cephalexin (OS: USAN)
  • Cefalexin monohydrate (PH: Ph. Eur. 7)
  • Cefalexin Monohydrate (PH: BP 2011)
  • Cefalexinum monohydricum (PH: Ph. Eur. 7)
  • Cephalexin (PH: USP 34)
  • Cefalexina sodica (PH: F.U. IX)

Brand Names

International Drug Name Search


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

Click for further information on drug naming conventions and International Nonproprietary Names.

Important Notice: The Drugs.com 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.