By: Jenny Park, PharmD Candidate c/o 2015 – Methadone maintenance therapy is prescribed for opioid dependency. Many HIV patients who were former injection drug abusers rely on methadone maintenance. Although there is limited data, research suggests lamivudine, ritonavir, and zidovudine to be the most common concomitant drugs in methadone associated torsades and prolonged QT interval.1…