Life Threatening Severe QTc Prolongation in Patient with Systemic Lupus Erythematosus due to Hydroxychloroquine

Table 1

Few of the major classes of medications known to cause QT interval prolongation [6].

Class	Medications
Antibiotics	Quinolone: levofloxacin and moxifloxacin; Macrolide: erythromycin and clarithromycin
Antiarrhythmic drugs	Class Ia: quinidine, procainamide, disopyramide; Class III: dofetilide, ibutilide, sotalol
Antidepressants	Amitriptyline, desipramine, imipramine, maprotiline, fluoxetine
Antipsychotic	Neuroleptic: haloperidol, droperidol, thioridazine, chlorpromazine; Atypical antipsychotics: ziprasidone, risperidone, citalopram