Synergy Pharmaceuticals Announces Closing of Merger With Callisto Pharmaceuticals  
1/18/2013 9:16:36 AM

NEW YORK, Jan. 17, 2013 (GLOBE NEWSWIRE) -- Synergy Pharmaceuticals Inc. (Nasdaq:SGYP), a developer of new drugs to treat gastrointestinal disorders and diseases, today announced that its previously announced merger with Callisto Pharmaceuticals, Inc. (formerly OTC QB: CLSP) closed effective today.