Skip to Content


In the US, Efalizumab is a member of the drug class selective immunosuppressants and is used to treat Plaque Psoriasis and Psoriasis.



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Therapeutic Category

Selective immunosuppressant

Chemical Name

Immunoglobulin G1, anti - (human antigen CD 11a) (human-mouse monoclonal hu 1124 gamma 1 - chain), disulfide wit human-mouse monoclonal hu 1124 light chain, dimer (WHO)

Foreign Names

  • Efalizumabum (Latin)
  • Efalizumab (German)
  • Efalizumab (French)
  • Efalizumab (Spanish)

Generic Names

  • Efalizumab (OS: USAN)
  • anti - CD 11a (IS)
  • anti - CD 11a MAb (IS)
  • hu 1124 (IS)
  • Humanized MHM 24 (IS)

Brand Name


ISInofficial Synonym
OSOfficial Synonym
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name
WHOWorld Health Organization

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.