Drug Category	Drugs
Rhythm-control drugs	Amiodarone Disopyramide Dofetilide Dronedarone Flecainide	Procainamide Propafenone Quinidine Sotalol
Beta-blockers	Acebutolol Atenolol Betaxolol Bisoprolol Carteolol Carvedilol Labetalol	Metoprolol Nadolol Nebivolol Penbutolol Propranolol Timolol
Digitalis glycosidesq	Digitalis Digitoxin Digoxin
Calcium channel blockers	Diltiazem Verapamil
Definite QT-prolonging drugs	Azithromycin Bepridil Chloroquine Chlorpromazine Citalopram Clarithromycin Droperidol Erythromycin	Halofantrine Haloperidol Mesoridazine Moxifloxacin Pentamidine Pimozide Thioridazine Vandetanib
Possible QT-prolonging drugs	Amantadine Amitriptyline Atazanavir Chloral Hydrate Ciprofloxacin Clomipramine Clozapine Desipramine Diphenhydramine Dolasetrone Doxepin Escitalpram Famotidine Felbamate Fingolimod Fluconazole Fluoxetine Foscarnet Fosphenytoin Galantamine Iloperidone Imipramine Indapamide Isradipine Itraconazole Ketoconazole Lapatinib	Levofloxacin Lithium Moexipril Nicardipine Nilotinib Nortriptyline Octeotide Ofloxacin Ondansetron Oxytocin Paroxetine Protriptyline Quetiapine Risperidone Ritonavir Sertraline Sulfamethoxazole/trimethroprim Sunitinib Tacrolimus Telithromycin Tizanidine Trazodone Trimipramine Vardenafil Venlafaxine Voriconazole Ziprasidone
Anticoagulants	Warfarin Dabigatran