23. Drugs that prolong the QT Interval: albuterol, alfuzosin, amantadine, amisulpride, amphetamine, arsenic trioxide, astemizole, atazanavir, atomoxetine, chloral hydrate, chloroquine, ciprofloxacin, citalopram, clozapine, cocaine, dexmethylphenidate, diphenhydramine, dobutamine, dofetilide, dopamine, dronedarone, ephedrine, epinephrine, eribulin, escitalopram, famotidine, felbamate, fenfluramine, fingolimod, fosphenytoin, galantamine, gatifloxacin, gemifloxacin, granisetron, iloperidone, isoproterenol, lapatinib, levalbuterol, lisdexamfetamine, lithium, metaproterenol, methadone, methylphenidate, midodrine, moxifloxacin, nilotinib, norepinephrine, ondansetron, oxytocin, paliperidone, perflutren lipid microspheres, phentermine, phenylephrine, phenylpropanolamine, protriptyline, pseudoephedrine, ranolazine, ritodrine, roxithromycin, sibutramine, solifenacin, sunitinib, tacrolimus, telithromycin, terbutaline, terfenadine, tolterodine, trimethoprim-sulfa, vandetanib, vardenafil, voriconazole.