By nancy heckler — Contributing columnist
With so many advances in medicine in the past 20 years, it's hard to believe that there were no FDA-approved medications available for multiple sclerosis before 1993.
Today, there are 10 drugs on the market that effectively manage the disease, with several more in development and nearing the approval stage.
MS is a chronic, sometimes debilitating condition in which an individual's own immune system attacks the myelin, the protective insulation around the nerves of the central nervous system.
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