title: Proceedings: The use of practolol and bretylium to produce cardiac sympathetic nerve block.
mesh_terms: D000818:Animals; D001949:Bretylium Compounds / Q000494:pharmacology*; D004285:Dogs; D004558:Electric Stimulation; D006321:Heart / Q000294:innervation*; D006339:Heart Rate / Q000187:drug effects; D011217:Practolol / Q000494:pharmacology*; D013564:Sympathetic Nervous System / Q000187:drug effects*
chemical_list: D001949:Bretylium Compounds; D011217:Practolol