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Drugs That Prolong the QT Interval and/or Induce Torsades de Pointes

-Raymond L. Woosley, MD, PhD

Information from the medical literature, the FDA-approved drug labeling and reports submitted to the FDA Adverse Events Reporting System database.

Browse by clicking on the first letter of the drug's brand or generic name:

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Search by keyword(s):

Generic Name Amantadine PubMed Search
Brand Name(s) Symmetrel®
Drug Class Dopaminergic/Anti-viral
QT
TdP
Risk Group A drug that may prolong the QT interval but at this time lacks substantial evidence for causing Torsades de Pointes. This drug should be avoided for use in patients with diagnosed or suspected Congenital Long QT Syndrome.
Comments


Generic Name Atomoxetine PubMed Search
Brand Name(s) Strattera®
Drug Class norepinephrine reuptake inhibitor
QT
TdP
Risk Group A drug to be avoided for use in patients with diagnosed or suspected Congenital Long QT Syndrome.
Comments


Generic Name Doxepin PubMed Search
Brand Name(s) Sinequan®
Drug Class Tricyclic Antidepressant
QT
TdP
Risk Group Drugs that carry a risk of torsades de pointes and/or QT prolongation under certain conditions, such as patients with congenital long QT syndrome, drug overdose or co-administration of interacting drugs.
Comments


Generic Name Fluoxetine PubMed Search
Brand Name(s) Prozac®,Sarafem®
Drug Class Anti-depressant
QT
QT prolongation is mentioned in the FDA-approved labeling as a known action of the drug.
TdP
The FDA-approved labeling includes mention of cases or a risk of Torsades de Pointes.
Risk Group Drugs that carry a risk of torsades de pointes and/or QT prolongation under certain conditions, such as patients with congenital long QT syndrome, drug overdose or co-administration of interacting drugs.
Comments
Association not clear

Generic Name Itraconazole PubMed Search
Brand Name(s) Sporanox®
Drug Class Anti-fungal
QT
TdP
Risk Group Drugs that carry a risk of torsades de pointes and/or QT prolongation under certain conditions, such as patients with congenital long QT syndrome, drug overdose or co-administration of interacting drugs.
Comments


Generic Name Mesoridazine PubMed Search
Brand Name(s) Serentil®
Drug Class Anti-psychotic
QT
QT prolongation is mentioned in the FDA-approved labeling as a known action of the drug.
TdP
The FDA-approved labeling includes mention of cases or a risk of Torsades de Pointes.
Risk Group A drug that is generally accepted by authorities to have a risk of causing Torsades de Pointes. This drug should be avoided for use in patients with diagnosed or suspected Congenital Long QT Syndrome.
Comments


Generic Name Octreotide PubMed Search
Brand Name(s) Sandostatin®
Drug Class Endocrine
QT
QT prolongation is mentioned in the FDA-approved labeling as a known action of the drug.
TdP
Risk Group A drug that may prolong the QT interval but at this time lacks substantial evidence for causing Torsades de Pointes. This drug should be avoided for use in patients with diagnosed or suspected Congenital Long QT Syndrome.
Comments


Generic Name Pseudoephedrine PubMed Search
Brand Name(s) PediaCare®,Sudafed®
Drug Class Decongestant
QT
TdP
Risk Group A drug to be avoided for use in patients with diagnosed or suspected Congenital Long QT Syndrome.
Comments


Generic Name Quetiapine PubMed Search
Brand Name(s) Seroquel®
Drug Class Anti-psychotic
QT
QT prolongation is mentioned in the FDA-approved labeling as a known action of the drug.
TdP
Risk Group A drug that may prolong the QT interval but at this time lacks substantial evidence for causing Torsades de Pointes. This drug should be avoided for use in patients with diagnosed or suspected Congenital Long QT Syndrome.
Comments


Generic Name Salmeterol PubMed Search
Brand Name(s) Serevent®
Drug Class Sympathomimetic
QT
QT prolongation is mentioned in the FDA-approved labeling as a known action of the drug.
TdP
Risk Group A drug to be avoided for use in patients with diagnosed or suspected Congenital Long QT Syndrome.
Comments


Generic Name Sertindole PubMed Search
Brand Name(s) Serdolect®,Serlect®
Drug Class Antipsychotic, atypical
QT
TdP
Risk Group A drug that may prolong the QT interval but at this time lacks substantial evidence for causing Torsades de Pointes. This drug should be avoided for use in patients with diagnosed or suspected Congenital Long QT Syndrome.
Comments

data2



Generic Name Sertraline PubMed Search
Brand Name(s) Zoloft®
Drug Class Anti-depressant
QT
QT prolongation is mentioned in the FDA-approved labeling as a known action of the drug.
TdP
The FDA-approved labeling includes mention of cases or a risk of Torsades de Pointes.
Risk Group Drugs that carry a risk of torsades de pointes and/or QT prolongation under certain conditions, such as patients with congenital long QT syndrome, drug overdose or co-administration of interacting drugs.
Comments
Association not clear

Generic Name Sibutramine PubMed Search
Brand Name(s) Meridia®
Drug Class Appetitie suppressant
QT
TdP
Risk Group A drug to be avoided for use in patients with diagnosed or suspected Congenital Long QT Syndrome.
Comments


Generic Name Solifenacin PubMed Search
Brand Name(s) VESIcare®
Drug Class muscarinic receptor anatagonist
QT
QT prolongation is mentioned in the FDA-approved labeling as a known action of the drug.
TdP
Risk Group Drugs that carry a risk of torsades de pointes and/or QT prolongation under certain conditions, such as patients with congenital long QT syndrome, drug overdose or co-administration of interacting drugs.
Comments


Generic Name Sotalol PubMed Search
Brand Name(s) Betapace®
Drug Class Anti-arrhythmic
QT
QT prolongation is mentioned in the FDA-approved labeling as a known action of the drug.
TdP
The FDA-approved labeling includes mention of cases or a risk of Torsades de Pointes.
Risk Group A drug that is generally accepted by authorities to have a risk of causing Torsades de Pointes. This drug should be avoided for use in patients with diagnosed or suspected Congenital Long QT Syndrome.
Comments
Substantial evidence indicates a greater risk of Torsades de Pointes in women.
Females>Males

Generic Name Sparfloxacin PubMed Search
Brand Name(s) Zagam®
Drug Class Antibiotic
QT
QT prolongation is mentioned in the FDA-approved labeling as a known action of the drug.
TdP
The FDA-approved labeling includes mention of cases or a risk of Torsades de Pointes.
Risk Group A drug that is generally accepted by authorities to have a risk of causing Torsades de Pointes. This drug should be avoided for use in patients with diagnosed or suspected Congenital Long QT Syndrome.
Comments


Generic Name Sunitinib PubMed Search
Brand Name(s) Sutent®
Drug Class Anti-cancer
QT
TdP
Risk Group A drug that may prolong the QT interval but at this time lacks substantial evidence for causing Torsades de Pointes. This drug should be avoided for use in patients with diagnosed or suspected Congenital Long QT Syndrome.
Comments


Generic Name Terfenadine PubMed Search
Brand Name(s) Seldane®
Drug Class Antihistamine
QT
TdP
Risk Group A drug that is generally accepted by authorities to have a risk of causing Torsades de Pointes. This drug should be avoided for use in patients with diagnosed or suspected Congenital Long QT Syndrome.
Comments

No longer available in U.S.

Generic Name Trimethoprim-Sulfa PubMed Search
Brand Name(s) Bactrim®,Sulfa®
Drug Class Antibiotic
QT
TdP
Risk Group Drugs that carry a risk of torsades de pointes and/or QT prolongation under certain conditions, such as patients with congenital long QT syndrome, drug overdose or co-administration of interacting drugs.
Comments


Generic Name Trimipramine PubMed Search
Brand Name(s) Surmontil®
Drug Class Tricyclic Antidepressant
QT
TdP
Risk Group Drugs that carry a risk of torsades de pointes and/or QT prolongation under certain conditions, such as patients with congenital long QT syndrome, drug overdose or co-administration of interacting drugs.
Comments


A note about Brand Names: Drugs are listed with up to 2 common brand names. There are many more brand names for some of the common drugs, such as pseudoephedrine and erythromycin. It is also important to look at the list of active drugs in medicines that contain a combination of drugs such as Zyrtec-D®, which contains pseudoephedrine.


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