Generic Name	Brand Name	Category*
Albuterol	Ventolin, Proventil	3
Amantadine	Symmetrel	2
Amiodarone	Pacerone, Cordarone	1
Amphetamine/dextroamphetamine	Adderall	3
Atomoxetine	Strattera	3
Azithromycin	Zithromax	2
Chloral hydrate	Noctec	2
Chloroquine	Arelan	1
Chlorpromazine	Thorazine	1
Clarithromycin	Biaxin	1
Clozapine	Clozaril	2
Dextroamphetamine	Dexadrine	3
Disopyramide	Norpace	1
Dobutamine	Dobutrex	3
Dolasetron	Anzemet	2
Dopamine	Intropin	3
Droperidol	Inapsine	1
Ephedrine	Rumatuss	3
Epinephrine	Primatene, Bronkaid	3
Erythromycin	Erythrocin , EES	1
Felbamate	Felbatrol	2
Flecainide	Tambocor	2
Foscarnet	Foscavir	2
Fosphenytoin	Cerebyx	2
Gemifloxacin	Factive	2
Granisetron	Kytril	2
Halofantrine	Halfan	1
Haloperidol	Haldol	1
Isoproterenol	Isupres, Medihaler-Iso	3
Isradipine	Dynacirc	2
Levalbuterol	Xopenex	3
Levofloxacin	Levaquin	2
Lithium	Lithobid, Eskalith	2
Metaproterenol	Alupent, Metaprel	3
Methadone	Dolophine, Methadose	1
Methylphenidate	Ritalin , Concerta	3
Milodrine	ProAmantine	3
Moxifloxacin	Avelox	2
Nicardipine	Cardene	2
Norepinephrine	Levophed	3
Octreotide	Sandostatin	2
Ofloxacin	Floxin	2
Ondansetron	Zofran	2
Pentamidine	Pentam, NebuPent	1
Phenylephrine	Neosynephrine	3
Pimozide	Orap	1
Procainamide	Pronestyl	1
Pseudoephedrine	PediaCare, Sudafed	3
Quetiapine	Seroquel	2
Quinidine	Quinaglute, Cardioquin	1
Risperidone	Risperdal	2
Salmeterol	Serevent	3
Sotalol	Betapace	1
Tacrolimus	Prograf	2
Telithromycin	Ketek	2
Terbutaline	Brethine	3
Thioridazine	Mellaril	1
Tizanidine	Zanaflex	2
Venlafaxine	Effexor	2
Ziprasidone	Geodon	2

Drugs in bold type are commonly used in perioperative period.
Drugs in italics type are commonly used in children.
^*Category 1: Drugs that are generally accepted by authorities to have a risk of prolonging the QT interval and causing Torsades de pointes.
Category 2: Drugs that may prolong the QT interval but at this time lack substantial evidence for causing Torsades de pointes.
Category 3: Drugs to be avoided for use in patients with diagnosed or suspected congenital long QT syndrome (in addition to drugs in categories 1 and 2).
A continuously updated and complete list of drugs that prolong QT, as well a list of drugs which do not prolong QT and are therefore safe in patients with long QT, may be found at www.torsades.org/medical-pros/drug-lists/drug-lists.htm#. (Accessed July 21, 2006.)