Answer
Liver injury reported after marketing with interferon beta treatment, including Avonex (interferon beta-1a), includes elevated serum hepatic enzyme levels, hepatitis, autoimmune hepatitis and hepatic failure.
Sources for this answer
- AVONEX 30 micrograms/0.5 ml solution for injection.Biogen Idec Ltd · emc · SmPC §4.4 Special warnings and precautions for use · Version 34Document updated
Sources checked