Study Design: A total of 88 patients will be randomly assigned into two parallel groups: (1) group who will receive standard care and pharmaceutical care; and (2) group who will receive only standard care. Both groups will be subjected to a follow-up period of 12 months. The primary outcome of this trial is the evaluation of quality of life, measured by the 36-item short-form and the Minnesota Living with Heart Failure Questionnaire. Secondary outcomes include drug-related problems and exercise tolerance measured by the standard six-minute walk test.