Can Trazodone Cause Arrhythmias?

Can Trazodone Cause Arrhythmias? 8,10 In humans, trazodone has been associated with arrhythmias including prolonged QT intervals, ventricular premature contractions, and torsade de pointes. Does trazodone affect heart rhythm? Trazodone may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can infrequently result in serious (rarely fatal) fast/irregular heartbeat and other symptoms