Pacemaker battery depletion is a gradual process that is usually divided into two stages: elective replacement indication and end of life (Bian et al., 2020). To prolong administration of working hours during the first stage, modifications to the procedures of pacemaker are required (Bian et al., 2020;Crépeau-Gendron et al., 2019). The first phase can last many months, providing a perfect opportunity to replace the pacemaker and epicardial leads (Crépeau-Gendron et al., 2019). If the pacemaker is not replaced on time, it gradually stops working, resulting in lethal adverse and nonfatal complications (Crépeau-Gendron et al., 2019;Drew et al., 2010). Citalopram, a selective serotonin reuptake inhibitor, is now critical in the treatment of several psychiatric disorders (Lasocka et al., 2021). Citalopram causes a delayed lengthening of the QT interval and sudden cardiac death (Lasocka et al., 2021). In this study, citalopram was used to treat depression in a patient who had torsade de pointes during pacemaker battery depletion.