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Avonex Headache
- Avonex IM Precautions and Side Effects
- Dosage and Storage
- Precautions and Side Effects
- Drug Interactions
Pronounced: (in-ter-FEER-on BAY-tuh)
Side Effects
Pain, swelling, or redness at the injection site may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
Flu-like symptoms such as headache, fatigue, fever, chills, and muscle aches may occur when you first start this medication. These symptoms usually last about a day after the shot and improve or go away after a few months of continued use. You can minimize...
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