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Interferon Beta-1a

In the US, Interferon Beta-1a (interferon beta-1a systemic) is a member of the drug class interferons and is used to treat Multiple Sclerosis and Neuritis.

US matches:



CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Antineoplastic agent

Biological response modifier, BRM


Treatment of multiple sclerosis, MS

Foreign Names

  • Interferonum beta-1a (Latin)
  • Interferon beta-1a (German)
  • Interféron bêta-1a (French)
  • Interferón beta-1a (Spanish)

Generic Names

  • Interferon Beta-1a (OS: BANM, USAN)
  • Interferon Beta-1a (Genetical Recombination) (OS: JAN)
  • beta1A-IF (IS)
  • IFNbeta1a (IS)
  • Interferoni beta-1a (IS)
  • R-Frone (IS)
  • rh-IFN-Beta-1a (IS)
  • Interferon Beta-1a (Genetical Recombination) (PH: JP XVI)
  • Interféron bêta-1a (solution concentrée d') (PH: Ph. Eur. 9)
  • Interferon beta-1a concentrated solution (PH: Ph. Eur. 9)
  • Interferon Beta-1a Concentrated Solution (PH: BP 2018)
  • Interferon-beta-1a-Lösung, konzentrierte (PH: Ph. Eur. 9)
  • Interferoni beta-1a solutio concentrata (PH: Ph. Eur. 9)

Brand Names

  • Avonex
    Abbott, Ecuador; Abbott, Paraguay; Abbott, Venezuela; Biogen, Argentina; Biogen, Bosnia & Herzegowina; Biogen, Belgium; Biogen, Czech Republic; Biogen, Denmark; Biogen, Spain; Biogen, Ireland; Biogen, Israel; Biogen, Kuwait; Biogen, Lebanon; Biogen, Norway; Biogen, Romania; Biogen Australia, Australia; Biogen Canada, Canada; Biogen idec, Finland; Biogen idec, Hong Kong; Biogen idec, Italy; Biogen idec, Lithuania; Biogen idec, New Zealand; Biogen idec, Slovenia; Biogen idec, United States; Biogen Idec Limited, Greece; Biogen Idec Ltd, Iceland; Biogen Japan, Japan; BiogenIdec, Sweden; Medis Adria, Croatia (Hrvatska); Medis Pharma D.O.O, Serbia; Pharmaplan, South Africa; Stendhal, Mexico; Biogen Idec, Poland; Biogened, Estonia
  • AvoneX
    Biogen, Netherlands
  • Avonex 30 µg
    Biogen, Hungary
  • Avonex 30 mcg/0,5 ml
    Gen, Turkey
  • AVONEX 30 Mikrogramm/0,5ml
    Biogen, Germany
  • Avonex 30µg/0,5ml
    Biogen, France; Biogen, Luxembourg; Biogen Idec, Austria; Biogen Idec, United Kingdom; Biogen Ltd., Oman
  • Avonex Biogen-Johnson
    Biogen, Latvia
  • Axuareb
    Pisa, Mexico
  • Blastoferon
    Sidus, Paraguay; Sidus, Uruguay
  • CinnoVex
    CinnaGen, Georgia
  • Di Ning
    Changsheng Gene Pharmaceutical, China
  • Emaxem
    Probiomed, Dominican Republic; Probiomed, Guatemala; Probiomed, Honduras; Probiomed, Mexico
  • Inmunomas
    Bago, Argentina
  • Inmunomas NF
    Bago, Argentina
  • Interferon Beta 1A Clausen
    Clausen, Uruguay
  • Jumtab
    Probiomed, Guatemala; Probiomed, Honduras; Probiomed, Mexico
  • Neurauxa
    Pisa, Mexico
  • Plegridy
    Biogen Idec Limited, Greece
  • Rebif
    EMD Serono, Canada; Merck, Bosnia & Herzegowina; Merck, Brazil; Merck, Denmark; Merck, Ecuador; Merck, Finland; Merck, Hong Kong; Merck, Croatia (Hrvatska); Merck, Indonesia; Merck, South Korea; Merck, Norway; Merck, Philippines; Merck, Portugal; Merck, Sweden; Merck, Slovenia; Merck, Slovakia; Merck Consumer Healthcare, Belgium; Merck S.L., Spain; Merck Sereno, Latvia; Merck Serono, Australia; Merck Serono, China; Merck Serono, Czech Republic; Merck Serono, France; Merck Serono, United Kingdom; Merck Serono, Ireland; Merck Serono, Italy; Merck Serono, Lebanon; Merck Serono, Malaysia; Merck Serono, Poland; Merck Serono, Romania; Merck Serono, Serbia; Merck Serono, Taiwan; Merck Serono, South Africa; Merck Serono Kuwait, Kuwait; Merck Serono Ltd, Iceland; Merck Sharp & Dohme, Cyprus; Merck Sharp & Dohme, Estonia; Serono, Greece; Serono, Tunisia; Serono, Turkey; Serono, United States; Serono, Venezuela; Serono Europe, Lithuania; Merck Merck Serono Division, Singapore
  • Rebif 22
    Merck, Switzerland
  • Rebif 22 µg
    Abacus, Austria; Eurim-Pharm, Austria; Haemato Pharm, Austria; Merck Serono, Austria
  • Rebif 22 µg /0,5 ml
    Merck KGaA, Oman; Merck Serono, Austria
  • Rebif 22 Mikrogramm
    Merck Serono, Germany
  • Rebif 22 Mikrogramm/0,25ml
    Merck Serono, Germany
  • Rebif 22 Mikrogramm/0,5ml
    Merck, Luxembourg; Merck Serono, Germany
  • Rebif 22mcg
    Merck Serono Ltd, Israel
  • Rebif 44
    Merck, Switzerland
  • Rebif 44 µg
    Abacus, Austria; Haemato Pharm, Austria; Merck Serono, Austria; Orifarm, Austria
  • Rebif 44 µg /0,5 ml
    Merck, Hungary; Merck KGaA, Oman; Merck Serono, Austria
  • Rebif 44 Mikrogramm
    Merck Serono, Germany
  • Rebif 44 Mikrogramm/0,5ml
    Merck, Luxembourg; Merck Serono, Germany
  • Rebif 44mcg
    Merck KGaA, Oman; Merck Serono Ltd, Israel
  • Rebif 8,8 µg
    Merck Serono, Austria
  • Rebif 8,8 µg /0,1 ml
    Merck Serono, Austria
  • Rebif 8,8 Mikrogramm
    Merck Serono, Germany
  • Rebif 8,8 Mikrogramm/0,1ml
    Merck Serono, Germany
  • Rebif NF
    Merck, Chile; Merck, Colombia; Merck Serono, Argentina
  • ReciGen
    CinnaGen, Georgia
  • Xerfelan
    Landsteiner, Mexico


BANMBritish Approved Name (Modified)
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
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.