title: Letter: Propranolol and digitalis.
mesh_terms: D003327:Coronary Disease / Q000188:drug therapy*; D004070:Digitalis / Q000008:administration & dosage* / Q000494:pharmacology / Q000627:therapeutic use; D004336:Drug Antagonism; D004359:Drug Therapy, Combination; D006321:Heart / Q000187:drug effects; D006801:Humans; D010101:Oxygen Consumption / Q000187:drug effects; D008517:Phytotherapy; D010946:Plants, Medicinal; D010947:Plants, Toxic; D011433:Propranolol / Q000008:administration & dosage* / Q000494:pharmacology / Q000627:therapeutic use
chemical_list: D011433:Propranolol