prov.pngResources for Healthcare Professionals


This section of CredibleMeds® includes tools to assist physicians, nurses, pharmacists and other healthcare professionals who play central roles in medication safety.

pill.pngQT Drugs Lists:  This portal includes, a list of drugs categorized by their potential to cause QT prolongation and/or torsades de pointes (TdP).  Click on a drug and see if the FDA-approved label recommends ECG monitoring. 


pill.pngOncoSupport™ Drug List:  This is a printable list of the QTdrugs that are often prescribed for patients with cancer. It includes designation of each drug's TdP risk category.


Categories of risk:

  • Drugs with known risk of TdP
  • Drugs with possible risk of TdP
  • Drugs with conditional risk of TdP - i.e., can cause TdP under certain conditions
  • Drugs to be avoided by congenital Long QT patients

The lists can be exported as PDF or Excel files, printed and can be searched and sorted by: Generic NameBrand Name, Risk Category, Pharmacologic Class, and Therapeutic Use.

Additional drug information provided when you click on a drug name: 

  1. Information on routes of administration.
  2. PubMed Links:  Automatically search the National Library of Medicine's PubMed databease for articles on the drug's ability to prolong the QT intervals and/or cause torsades de pointes.
  3. FDA label:  Information on whether the drug has a "black box" warning for any cause and whether the label mentions QT prolongation or torsades de pointes.

 Clinical Aids:


Clinical criteria for classification of cases of drug-induced Long QT and/or torsades de pointes.



A pocket summary of the clinical effects ofantiarrhythmc drugs and their actions on the ECG, ion channels and membrane receptors.  Contributed by Romero, K and Woosley, RL, Chapter 18, Clinical Pharmacology of Antiarrhythmic Drugs, Cardiovascular Therapeutics:  A Companion to Braunwald's Heart Disease, Fourth Edition edited by E.M. Antman and M.S. Sabatine, 2012. 

Click here to print a PDF.