Case report: Ranitidine-induced bradycardia in a patient with dextrocardia

Although rare, bradycardia and other cardiac arrhythmias have been associated with the use of H-2-receptor antagonists, Ranitidine is among the most frequently prescribed drugs, In this article, the authors observed a ranitidine-mediated sinus bradycardia in a man with dextrocardia (situs inversus) who had acute bleeding from a duodenal ulcer, The bradycardia was resolved after ranitidine was discontinued.