LEXINGTON, Mass.--(BUSINESS WIRE)--NitroMed, Inc. (NASDAQ: NTMD) today reported financial results for the fiscal quarter ended March 31, 2008. NitroMed is the maker of BiDil® (isosorbide dinitrate/hydralazine hydrochloride), an orally administered medicine approved in the United States for the treatment of heart failure in self-identified black patients.