title: Severe bradycardia after neostigmine in a patient taking propranolol to control paroxysmal atrial tachycardia.
mesh_terms: D001919:Bradycardia / Q000139:chemically induced*; D006321:Heart / Q000187:drug effects; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D009388:Neostigmine / Q000008:administration & dosage / Q000009:adverse effects*; D011433:Propranolol / Q000494:pharmacology / Q000627:therapeutic use*; D013614:Tachycardia, Paroxysmal / Q000188:drug therapy*
chemical_list: D009388:Neostigmine; D011433:Propranolol