Today, fool.com health-care analysts David Williamson and Brenton Flynn look at ailing Idenix, which had a poor August and September performance. 

A heavy blow from a poorly performing Bristol-Myers Squibb drug put Idenix's drug on hold, and David doesn't think investors can expect this situation to change anytime soon. 

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This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.