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Managing Flu like Symptoms

Many people who take once-a-week AVONEX adjust well to therapy. However, some side effects may occur. When they first start treatment, most patients experience temporary flu-like symptoms (fever, chills, sweating, muscle aches, and tiredness).

Flu-like symptoms can be manageable, and for many people lessen or go away over time.

Simple strategies to help manage flu-like symptoms:


  • Stay well hydrated

  • Try an over-the-counter pain and fever reducer before you take your dose of AVONEX

  • Take AVONEX at dinner or bedtime

Remember—talk with your doctor or nurse, especially if the symptoms last longer than the first few months of therapy.

Many people taking AVONEX have found ways to effectively manage flu-like symptoms.