NEW YORK (AP) -- Shares of ViroPharma Inc. dove Tuesday after likely rival Optimer Pharmaceuticals Inc. said patients taking its developing gastrointestinal infection drug had a higher cure rate and were less likely to relapse.
NEW YORK (AP) -- Shares of ViroPharma Inc. dove Tuesday after likely rival Optimer Pharmaceuticals Inc. said patients taking its developing gastrointestinal infection drug had a higher cure rate and were less likely to relapse.