This chart lists the drugs that have been shown to increase the QT interval, which increases the patient’s risk of developing torsades de pointes. | Drug name | Drug class |
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| Amiodarone (Cordarone) or (Pacerone) | Antiarrhythmic | | Amitriptyline (Elavil) | Antidepressant | | Chlorpromazine | Antipsychotic/antiemetic | | Clarithromycin (Biaxin) | Antibiotic | | Desipramine (Norpramin) | Antidepressant | | Disopyramide (Norpace) | Antiarrhythmic | | Dofetilide (Tikosyn) | Antiarrhythmic | | Dolasetron (Anzemet) | Antiemetic | | Droperidol (Inapsine) | Sedative; antinauseant | | Erythromycin (Erythrocin) | Antibiotic; gastrointestinal stimulant | | Fluoxetine (Prozac) | Antidepressant | | Haloperidol (Haldol) | Antipsychotic | | Ibutilide (Corvert) | Antiarrhythmic | | Ketoconazole (Nizoral) | Antifungal | | Levofloxacin (Levaquin) | Antibiotic | | Methadone (Methadose or Dolophine) | Opiate agonist | | Procainamide | Antiarrhythmic | | Quinidine sulphate | Antiarrhythmic | | Sertraline (Zoloft) | Antidepressant | | Sotalol (Betapace) | Antiarrhythmic | | Sumatriptan (Imitrex) | Antimigraine | | Thioridazine (Mellaril) | Antipsychotic |
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