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Beta interferons (Avonex, Betaferon; Extavia, Plegridy and Rebif) (factsheet)

MS is treated by drugs called disease modifying therapies (DMTs). Among the DMTs is a drug called beta interferon. There are five versions of it: Avonex, Plegridy, Betaferon, Extavia and Rebif.

Download this factsheet for information about this drug including:

  • what are beta interferons
  • who can take beta interferons
  • how they work
  • side effects
  • beta interferons and pregnancy 

This factsheet is available for you to download and print. You can find more information on our webpages about beta interferons


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