A to Z of MS
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A to Z of MS Beta interferon
Interferons are proteins produced naturally by the human body. They are released by white blood cells to alter the immune system's response to infections.
Gamma interferon, which is released at the start of an immune response to infection, can induce multiple sclerosis symptoms. Beta interferon (sometimes referred to as interferon beta) is known to block the action of gamma interferon. It is thought that beta interferon acts by reducing both inflammation and the body's autoimmune reaction that is responsible for the destruction of myelin.
There are four beta interferon drugs available:
- Beta interferon 1a (Avonex)
- Beta interferon 1a (Rebif)
- Beta interferon 1b (Betaferon)
- Beta interferon 1b (Extavia)
In the past, the term beta interferons has sometimes been loosely applied to all of the disease modifying drugs for MS, including glatiramer acetate (Copaxone). Although glatiramer acetate has a similar effect, it is not an interferon.
- Webcast on drug therapy
- Neurologist Prof David Bates addresses some of the questions people ask about disease modifying drugs
- Watch the webcast