title: Atrial flutter with 1:1 atrioventricular conduction precipitated by antazoline (antistine).
mesh_terms: D000889:Anti-Arrhythmia Agents / Q000009:adverse effects*; D001282:Atrial Flutter / Q000188:drug therapy*; D004071:Digitalis Glycosides / Q000627:therapeutic use; D004357:Drug Synergism; D004562:Electrocardiography; D006329:Heart Conduction System / Q000187:drug effects*; D006634:Histamine H1 Antagonists / Q000009:adverse effects*; D006801:Humans; D007093:Imidazoles / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D011802:Quinidine / Q000627:therapeutic use
chemical_list: D000889:Anti-Arrhythmia Agents; D004071:Digitalis Glycosides; D006634:Histamine H1 Antagonists; D007093:Imidazoles; D011802:Quinidine