SAN MATEO, Calif., March 8, 2012 (GLOBE NEWSWIRE) -- NeurogesX, Inc. (Nasdaq:NGSX), a specialty pharmaceutical company focused on developing and commercializing a portfolio of novel non-opioid, pain management therapies, today reported results for its fourth quarter and full year ended December 31, 2011, and provided an update on recent developments and operational changes. The Company reported fourth quarter U.S. sales of Qutenza from its distributor customers to end users of approximately $1.0 million, in line with recent guidance. Operating expenses for the quarter were $10.1 million. The Company reported a fourth quarter net loss of $0.34 per share.