The procedures for the study consist of: informed consent, questions about the subjects heart failure, blood sample, assessment of heart failure severity based on symptoms, six minute walk test and the Minnesota Living with Heart Failure Questionnaire, history of heart failure symptoms and emergency room visits, diuretic and baseline medication history, long term IV for medication infusions, adjustment of study drug and regularly taken medications, 6 weeks of receiving long term IV infusion of drug, blood taken for lab tests at each clinic visit and an informational card provided for subjects to use for on-call physicians.