“…A venlafaxine overdose may result in encephalopathy, consciousness impairment, seizures, metabolic disturbances, rhabdomyolysis, and serotoninergic syndrome. Life-threatening cardiotoxicity may occur from sodium channel blockage (membrane stabilizing activity), leading to QT prolongation and QRS widening on the electrocardiogram, ventricular arrhythmia, and cardiac failure [ 12 , 13 , 14 , 15 ]. Besides gastrointestinal decontamination if indicated, its management relies on mechanical ventilation, 8.4% sodium bicarbonate, inotropic drugs, and vasopressors, and may require veno-arterial extracorporeal membrane oxygenation (ECMO) in the rare cases of refractory cardiac failure or arrest [ 16 , 17 , 18 , 19 , 20 ].…”