What is Avonex?
Avonex® (interferon beta-1a) is a drug used to treat the relapsing-remitting form of multiple sclerosis (MS). MS is an autoimmune disease that causes nerve damage leading to numbness, weakness and loss of bodily control and function. Avonex® works by modifying the immune system, decreasing the number of relapses and the amount of physical disability a person suffers from. While these drugs can provide some relief from MS symptoms, there is currently no actual cure for multiple sclerosis. Interferon beta-1a can also be used to treat genital warts.
The dose of injectable interferon beta-1a varies from person to person and may be given at a clinic or at home. Talk to your doctor about the best dose for you and always follow the directions on the label. Once diluted, the vials must be kept in the refrigerator.
Avonex® side effects
Side effects from Avonex® include
flu-like symptoms like fatigue, headache, fever, chills, nausea and vomiting. They can also
cause dizziness, pain, injection site reactions, numbness, hair loss and muscle weakness. Rare
but more serious side effects include depression, hallucinations, seizures, liver problems,
chest pain and allergic reactions. Talk to your doctor if your side effects become bothersome
or severe. Talk to your pharmacist or doctor regarding any questions you may have about
Get more information about Multiple Sclerosis in our Health Encyclopedia.
If you're looking for more specific answers to specific questions, ask a Walgreens pharmacist here.