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In the US, Cefaclor (cefaclor systemic) is a member of the drug class second generation cephalosporins and is used to treat Bladder Infection, Bronchitis, Kidney Infections, Otitis Media, Pneumonia, Sinusitis, Skin and Structure Infection, Skin or Soft Tissue Infection, Tonsillitis/Pharyngitis, Upper Respiratory Tract Infection and Urinary Tract Infection.

US matches:

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Antibacterial: Cephalosporin

Chemical Name

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

Foreign Names

  • Cefaclorum (Latin)
  • Cefaclor (German)
  • Cefaclor (French)
  • Cefaclor (Spanish)

Generic Names

  • Cefaclor (OS: USAN, JAN, BAN)
  • Cefacloro (OS: DCIT)
  • Céfeaclor (OS: DCF)
  • Cephaclor (IS)
  • Compound 99638 (IS: Lilly)
  • Cefaclor (PH: JP XVI, USP 38)
  • Cephaclor-1-Wasser (IS)
  • S 6472 (IS)
  • Cefaclor (PH: BP 2016, Ph. Eur. 8, USP 38)
  • Céfaclor (PH: Ph. Eur. 8)
  • Cefaclor-Monohydrat (PH: Ph. Eur. 8)
  • Cefaclorum (PH: Ph. Eur. 8)

Brand Names

← International Drug Name Search


BANBritish Approved Name
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 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.