Avonex (Interferon Beta 1A)

What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.

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Prescription Required

  • Product Details


    Avonex is a prescription multiple sclerosis treatment medication used to treat relapse-remitting MS, active secondary progressive MS, or for clinically isolated syndrome treatment. It is a biologic medication and is administered as an injection into muscles to help slow disability progression from MS, limit relapses, and to help reduce brain lesions on MRI. Interferon-beta 1a is the active ingredient and it works to reorient your immune system so that less attacking of nerve fibers occurs and it also helps to decrease inflammation.


    Patients prescribed this medication will self-administer 1 Avonex injection each week.

    Take Avonex dose pack out of refrigerator 30 minutes before injection.

    Grasp cap and bend at 90-degree angle until cap pops off.

    Hold the Avonex pen upright.

    Press the needle on the prefilled syringe glass tip.

    Gently turn the needle to the right (clockwise) until it is tight and firmly attached.

    Inject into thigh or upper arm.

    Do not use the same injection spot (alternate for each injection).


    The active ingredient in Avonex is Interferon-beta 1a.


    Tell your doctor if you have any history of blood clots, liver problems, heart problems, thyroid disorder, autoimmune diseases or are being treated for mental illness before starting on Avonex.

    Also tell your doctor if you drink any more than 3 alcoholic drinks on average per week.

    Use of Avonex injections may not be suitable if you have an allergy to rubber or latex.

    Medication should only be used when pregnant or breastfeeding if approved by your doctor.


    There is the possibility of negative drug interactions risks between Avonex and other Rx and OTC medications, including amantadine / zolpidem / aspirin / atorvastatin / baclofen / clonazepam / glatiramer / gabapentin / ibuprofen / levothyroxine / lisinopril / pregabalin / metformin / omeprazole / modafinil / sertraline / topiramate / tramadol.

    Tell your doctor of all medications you are currently taking before receiving a prescription and proceeding to buy Avonex online.

    Side Effects

    Side effects from using Avonex are possible, and some users may experience low blood cell counts, skin change at injections sites, stomach pain, flu symptoms or abnormal liver function tests. If any side effects are experience you may want to discontinue use and talk to your doctor again about multiple sclerosis treatment medication alternatives.

    IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.

    Product Code : 1968

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