Tysabri returned to the market in 2006 with limits after the Food and Drug Administration decided MS patients were willing to accept the risks given the potential benefits.
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If you want to trade in the biotech space you’ve got to be careful, warns Guy Adami on Fast Money. News like this will hit from time to time and drag down shares considerably. I recommend staying with best of breed. I like Celgene.
Read More:
> Biogen, Elan Stocks Tank on Problems With Tysabri
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