Shares of Biogen Idec Inc. (Nasdaq: BIIB) plummeted $17.80 to $51.96 and Elan Corp. (NYSE: ELN) skidded $9.05 to $11.00 due to additional safety concerns about their multiple sclerosis therapy.
Biogen And Elan Fall Over Safety Concerns
August 01, 2008 at 13:44 PM EDT
