[Methadone-induced heart arrhythmia]. / Metadonindusert hjerterytmeforstyrrelse.

There is an ongoing debate over whether it is necessary to screen patients with an ECG before and during therapy with methadone. We present two patients who developed QT prolongation and sustained ventricular arrhythmias during treatment. Our experience as well as a literature survey indicate that an ECG should be performed before and during long-term methadone treatment.