Dec 28, 2012 (Fast Lane via COMTEX) -- Below are five companies in the Pharmaceuticals industry that underperformed yesterday on a relative basis. This analysis was compiled based on yesterday's trading activity as we search for stocks that have could possible underperform its peers going forward.

Questcor Pharmaceuticals (NASDAQ:QCOR) ranks first with a loss of 7.09%; Teva Pharmaceutical Industries (NASDAQ:TEVA) ranks second with a loss of 1.26%; and Valeant Pharmaceuticals International (NYSE:VRX) ranks third with a loss of 1.06%.

Salix Pharmaceuticals (NASDAQ:SLXP) follows with a loss of 1.05% and Forest Laboratories (NYSE:FRX) rounds out the bottom five with a loss of 0.91%.Questcor Pharmaceuticals, Inc. develops and commercializes novel central nervous system-focused therapeutics that address significant unmet medical needs. The Company's primary product is a natural source adrenocorticotropic hormone indicated for the treatment of acute exacerbations of multiple sclerosis, as well as a number of other conditions.

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