First, remove the offending agent.
Kam
April J
AJ
Manini
Alex F
AF
Nelson
Lewis S
LS
D017147:Defibrillators, Implantable / Q000009:adverse effects*; D006801:Humans; D008133:Long QT Syndrome / Q000139:chemically induced*; D008691:Methadone / Q000009:adverse effects*
D008691:Methadone