Peginterferon beta-1a, sold under the brand name Plegridy, is medication used to treat multiple sclerosis.

The most common side effects include headache, muscle pain, joint pain, influenza (flu)-like symptoms, pyrexia (fever), chills, asthenia (weakness), and erythema (reddening of the skin), pain or pruritus (itching) at the injection site.

Peginterferon beta-1a was approved for medical use in the United States and in the European Union in 2014. Text was copied from this source which is copyright European Medicines Agency. Reproduction is authorized provided the source is acknowledged.

Medical uses In the United States, peginterferon beta-1a is indicated for the treatment of relapsing forms of multiple sclerosis, to include clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease, in adults.

In the European Union, peginterferon beta-1a is indicated for the treatment of relapsing remitting multiple sclerosis in adults.

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