WILMINGTON, MASSACHUSETTS--(CCNMatthews - March 31, 2006) - DUSA Pharmaceuticals, Inc. (NASDAQ NMS:DUSA) reports that a lawsuit was filed by River’s Edge Pharmaceuticals, LLC on March 28, 2006, alleging, among other things, that Sirius Laboratories, Inc., a wholly-owned subsidiary of DUSA, agreed to authorize River’s Edge to market a generic version of Nicomide®, and that the United States patent covering Nicomide® issued to Sirius in December, 2005 is invalid. The declaratory judgment suit was filed in the United States District Court for the Northern District of Georgia, Gainesville Division. Nicomide® is one of the key products DUSA acquired from Sirius Laboratories, Inc. in its recent merger, which closed on March 10, 2006.
