Avonex is the number one prescribed MS therapy. It is a once a week interferon beta-1 treatment of self subcutaneous injections. It slows down physical disability progression by 37% and it slows down brain atrophy. “Avonex has been proven effective in clinical trials lasting up to 3 years.” The side effects can be serious, severe allergic reactions, drop in white or red blood cell levels, heart problems, changes in thyroid function, seizures, or liver problems.
