Cardiac Actions of Erythromycin

Abstract
ERYTHROMYCIN is a widely used macrolide antibiotic for which lengthening of the rate-corrected QT interval (QTc) on the electrocardiogram (ECG) has been reported.1,2 A prolonged QTc interval on the ECG is a feature associated with drug-induced torsades de pointes (TdP), an arrhythmia reported in patients treated with erythromycin.3-6
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