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Ibritumomab Tiuxetan



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Anti-CD20 monoclonal antibody

Radiopharmaceutical for antineoplastic therapy

Chemical Name

Immunoglobulin G1, anti-(human CD20 (antigen)) (mouse monoclonal IDEC-Y2B8 gamma1-chain), disulfide with mouse monoclonal IDEC-Y2B8 kappa 63-chain, dimer, N-[2-bis-(carboxymethyl)amino]-3-(4-isothiocyanatophenyl)propyl]-N-[2-[bis(carboxymethyl)- amino]pro (WHO)

Foreign Names

  • Ibritumomabum Tiuxetanum (Latin)
  • Ibritumomab Tiuxetan (German)
  • Ibritumomab Tiuxétan (French)
  • Ibritumomab Tiuxetán (Spanish)

Generic Names

  • Ibritumomab Tiuxetan (OS: USAN, BAN)
  • IDEC 129 (IS: IDEC)
  • IDEC Y2B8 (IS: IDEC)

Brand Names

  • Zevalin Indium
    Bayer Yakuhin, Japan
  • Zevalin Yttrium
    Bayer Yakuhin, Japan
  • Zevalin
    Bayer, Belgium; Bayer, Canada; Bayer, Switzerland; Bayer, United Kingdom; Bayer, Hong Kong; Bayer, Croatia (Hrvatska); Bayer, Italy; Bayer, Sweden; Bayer, Turkey; Bayer Santé, France; Bayer Schering, Austria; Bayer Schering, Ireland; Bayer Schering, Lithuania; Bayer Schering, Netherlands; Bayer Schering, Poland; Bayer Schering, South Africa; Bayer Schering Pharma, Finland; Bayer Schering Pharma, Latvia; Bayer Schering Pharma, Norway; Bayer Schering Pharma Oy, Thailand; Bayer Vital, Germany; Bayer-Schering, Romania; Biogen Idec, United States; Schering, Hungary; Schering, Slovenia; Schering-Plough, Spain; Schering-Plough, Portugal
  • Zevamab
    Bayer, Colombia; Schering, Argentina

International Drug Name Search


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

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.