No generic versions of Extavia (interferon beta-1b) are available at this time. This is because the drug is considered a "biologic" medicine, and current laws do not allow generic biologics to be manufactured. Unless these laws and rules are changed, this medication may never be available in generic form.
Is a Generic Version of Extavia Available?Extavia® (interferon beta-1b) is a prescription medication that belongs to a group of drugs known as interferons. It is approved for treating multiple sclerosis.
Extavia is manufactured by Bayer HealthCare Pharmaceuticals, Inc., for Novartis Pharmaceuticals Corporation. Technically, Extavia is considered a "biologic" and is, therefore, under different rules and laws than most other medications. At this point, current laws and regulations do not allow generic biologics (including generic Extavia) to be made.