• J La State Med Soc · Nov 2013

    Case Reports

    Treatment of methadone-induced torsades de pointes with lidocaine.

    • Saurabh Rajpal, Amandeep S Mundi, Pratap C Reddy, and Nuri I Akkus.
    • J La State Med Soc. 2013 Nov 1; 165 (6): 338-41.

    AbstractMethadone maintenance treatment (MMT) is commonly used for chronic pain control and for substitution in heroin addicts undergoing rehabilitation. Methadone is known to prolong QT interval and sometimes cause torsade de pointes (TdP) and ventricular fibrillation (VF). Treatment of TdP by antiarrhythmic drugs that prolong QT interval may worsen TdP. To our knowledge, worsening of methadone-induced TdP by amiodarone has not been reported before. We describe here a case of methadone-induced TdP that deteriorated into ventricular fibrillation upon treatment with intravenous (IV) amiodarone and resolved after discontinuation of amiodarone and treatment with IV magnesium, potassium, and lidocaine.

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