Skip to Content

Peginterferon Alfa 2-a



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Antiviral agent: Treatment of hepatitis

Biological response modifier, BRM


Chemical Name

Mono(N2,N6-dicarboxy-L-lysyl)interferon alfa-2a, diesters wit polyetylene glycol monometyl eter (WHO)

Foreign Names

  • Peginterferonum alfa-2a (Latin)
  • Peginterferon alfa 2-a (German)
  • Peginterf√©ron alfa 2-a (French)
  • Peginterfer√≥n alfa 2-a (Spanish)

Generic Names

Brand Names

  • Optipeg-A
    Incepta, Bangladesh
  • Pegasys
    Chugai Pharmaceutical, Japan; F. Hoffmann-La Roche LTD, Serbia; Hoffmann-La Roche Ltd, Latvia; Roche, Armenia; Roche, Argentina; Roche, Australia; Roche, Bosnia & Herzegowina; Roche, Belgium; Roche, Brazil; Roche, Canada; Roche, Chile; Roche, China; Roche, Colombia; Roche, Czech Republic; Roche, Germany; Roche, Denmark; Roche, Ecuador; Roche, Egypt; Roche, Spain; Roche, France; Roche, United Kingdom; Roche, Georgia; Roche, Hong Kong; Roche, Croatia (Hrvatska); Roche, Hungary; Roche, Indonesia; Roche, Ireland; Roche, Israel; Roche, Iceland; Roche, Italy; Roche, South Korea; Roche, Lebanon; Roche, Lithuania; Roche, Moldova; Roche, Mexico; Roche, Netherlands; Roche, Norway; Roche, New Zealand; Roche, Oman; Roche, Philippines; Roche, Portugal; Roche, Romania; Roche, Russian Federation; Roche, Sweden; Roche, Slovenia; Roche, Slovakia; Roche, Thailand; Roche, Tunisia; Roche, Turkey; Roche, Taiwan; Roche, United States; Roche, Uruguay; Roche, Vietnam; Roche, South Africa; Roche Registration, Austria
  • Pegasys RBV (Peginterferon Alfa 2-a and Ribavirin)
    Roche, Australia; Roche, Canada; Roche, New Zealand; Roche, Philippines
  • Pegferon
    GMP, Georgia
  • Reiferon
    Minapharm, Egypt
  • Reiferon Retard
    Minapharm, Egypt

International Drug Name Search


BANBritish Approved Name
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
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.