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Impax Pharmaceuticals Initiates Phase IIb Trial of IPX159 in Restless Legs Syndrome  
12/19/2011 9:39:35 AM

HAYWARD, Calif.--(BUSINESS WIRE)--Impax Pharmaceuticals, the branded products division of Impax Laboratories, Inc. (NASDAQ: IPXL), announced that it has initiated a Phase IIb trial of its drug candidate IPX159 in patients with moderate to severe Restless Legs Syndrome (RLS).
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