Keywords: ViroPharma, Vancocin, Citizen petition, Watson, FTC investigation, Sanofi, Yaxotere, Hospira, Apotex

ViroPharma stock plunges on bad news for Vancocin; Sanofi patents invalidated

Article | 11 April 2012

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ViroPharma I (Nasdaq: VPHM) saw its shares plunge 19% to $23.25 yesterday after it announced that the US Food and Drug ...

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