Interaction of quinidine and propranolol in experimental cardiac arrhythmias in the dog
Madan, B.R.; Pendse, V.K.
Archives Internationales de Pharmacodynamie et de Therapie 225(2): 287-293
1977
ISSN/ISBN: 0003-9780 PMID: 849075 Document Number: 119787
Quinidine, propranolol and their combination were studied in atrial fibrillation induced by the topical application of acetylcholine or aconitine, injury-stimulation-induced atrial flutter and ventricular ectopic tachycardia produced by coronary occlusion in the dog. The effect of combination of quinidine and propranolol was significantly greater than that of the individual drug in atrial arrhythmias but not in ventricular arrhythmias. The study provides experimental support for the combined clinical use of quinidine and propranolol in the treatment of atrial arrhythmias.