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Medicine

Drug-Induced QT Prolongation and Torsades de Pointes Risk Assessment

Quick fact

Over 100 common medications—including certain antibiotics, antidepressants, and antihistamines—can prolong the QT interval, and some can trigger torsades de pointes, a form of ventricular tachycardia that can degenerate into sudden cardiac death.

Why this is interesting

You've likely been on a medication that could quietly alter the electrical rhythm of your heart. How do we know which drugs pose a risk of a potentially fatal arrhythmia?