They also found that the abnormal cardiac rhythm events reported occurred over a large range of doses. Maremmani and associates [48] conducted a study with 83 patients addicted to heroin on ...

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.