title: Beta blockers and heart failure.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D002303:Cardiac Output, Low / Q000188:drug therapy*; D000075202:Contraindications; D004244:Dizziness / Q000139:chemically induced; D006801:Humans; D007022:Hypotension / Q000139:chemically induced
chemical_list: D000319:Adrenergic beta-Antagonists