title: A clinical study on the mechanism of the antiarrhythmic action of a new antagonist to beta-adrenergic receptor.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D007275:Injections, Intravenous; D013565:Sympatholytics / Q000009:adverse effects / Q000627:therapeutic use*
chemical_list: D013565:Sympatholytics