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Multiple Sclerosis: Drug Therapy

A number of drugs have been shown to slow the progression of MS in some people. These are called the disease modifying drugs. They include:

  • Avonex (interferon beta-1a)
  • Betaseron (interferon beta-1b)
  • Copaxone (glatiramer acetate)
  • Novantrone (mitoxantrone)
  • Rebif (interferon beta-1a)
  • Tysabri (natalizumab)
  • Gilenya (fingolimod)

 

How Do These Drugs Work?

All of these drugs work by suppressing, or altering, the activity of the body's immune system. Thus, these therapies are based on the theory that MS is, at least in part, a result of an abnormal response of the body's immune system that causes it to attack the myelin surrounding nerves.

Do the Drugs Cure MS?

These medications do not cure MS, but they do reduce the frequency and severity of attacks and the development of new brain lesions. In addition, they slow down the progression of MS, reducing future disability.

These drugs can improve the quality of life for many people with MS. Therefore, most doctors suggest that treatment with one of these drugs be started in most people as soon as a diagnosis of relapsing-remitting MS has been made.

Is Drug Therapy Right for Me?

The decision concerning whether or when to begin treatment with one of these medications is best made by you and your doctor. Factors that should be considered include potential side effects, benefits, frequency, method of medication delivery, and your personal concerns, priorities and lifestyle.

The most important goal is to find a treatment you can use comfortably and consistently. Each pharmaceutical company offers customer support and may also provide some financial assistance for qualifying individuals without prescription drug coverage.

Here's what you need to know about the most commonly used MS drugs.

Avonex (interferon beta-1a)
  Use: Treatment of relapsing forms of MS, and to treat after an initial episode of inflammation.
  How administered: Intramuscular (into the muscle) injection
  Frequency of use: Weekly
  Common side effects: Mild flu-like symptoms
  Support Program: MS Active Source 1-800-456-2255

 

Betaseron (interferon beta-1b)
  Use: Treatment of relapsing forms of MS
  How administered: Subcutaneous (under the skin) injection
  Frequency of use: Every other day
  Common side effects: Mild flu-like symptoms
  Support Program: MS Pathways 1-800-788-1467

 

Copaxone (glatiramer acetate)
  Use: Treatment of relapsing-remitting MS
  How administered: Subcutaneous (under the skin) injection
  Frequency of use: Daily
  Common side effects: Possible reaction at the injection site
  Support Program: Shared Solutions 1-800-887-8100

 

Gilenya (fingolimod)
  Use: Treatment of relapsing-remitting MS
  How administered: Orally in pill form
  Frequency of use: Daily
  Common side effects: Eye toxicity, increased risk of infection

 

Novantrone (mitoxantrone)
  Use: Treatment of rapidly worsening relapsing-remitting MS and for progressive-relapsing or secondary-progressive forms of MS
  How administered: Intravenous (by vein)
  Frequency of use: Once every 3 months or four times a year. Maximum dose 8-12 doses
  Common side effects:Nausea, hair thinning, decreased white blood cell count
  Support Program: MS LifeLines 1-877-447-3243

 

Rebif (interferon beta-1a)
  Use: Treatment of relapsing forms of MS
  How administered: Subcutaneous (under the skin) injection
  Frequency of use: Three times per week
  Common side effects: Mild flu-like symptoms
  Support Program: MS LifeLines 1-877-447-3243

 

Tysabri (natalizumab)

Use: Treatment of relapsing forms of MS

How administered: Intravenous (in the vein)

Frequency of use: Every 4 weeks  

Common side effects: Headache, feeling tired, and joint pain   

WebMD Medical Reference

Reviewed by Matthew Hoffman, MD on September 16, 2009
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