Polymorphic ventricular tachycardia (a.k.a. Torsades de Pointes) is best treated with intravenous magnesium. Patients with a prolonged QT interval have a higher risk of developing polymorphic VT.
Purpose: The association of methadone with Q-T interval prolongation and torsades de pointes (TdP) is reviewed, and recommendations for preventing Q-T interval prolongation in methadone users are ...
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