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QTdrugs Blog
August changes to the QTdrugs List and List of Drugs to Avoid in cLQTS
In the early days of the COVID-19 pandemic, several drugs already on the market were widely touted as potentially effective and were often prescribed in the hope that they could alter the course of COVID-19. Many of those drugs were originally…
Merriam-Webster defines contraindicated as “not advised as a course of treatment or procedure” but the definition fails to address who or what type of organization/agency should have the authority to decide if a treatment is contraindicated under…
A century ago, Drs. Bazett and Fridericia separately and simultaneously published their recommendations for how to correct the QT interval for differences in heart rate. Bazett recommended dividing the QT by the square root of the heart rate…
Health screening is an established component of high-quality medical care and doctors regularly screen their patients for disease risk markers such as high cholesterol or hypertension. Yet, little progress has been made in finding ways to prevent…
News
Nelfinavir (Viracept®) and Ivabradine (Procoralan®, Coralan®, Corlentor®, Coraxan®, Ivabid®, Bradia®) have been added to the list of medicines with Conditional Risk of Torsades de Pointes (TdP).
Azithromycin has been associated with increased risk of death(1) and since June 2012 has been on the CredibleMeds list of QT-prolonging drugs that have “Known Risk of Torsades de Pointes (TdP).”
Research at AZCERT has documented the greater sensitivity of women to the effects of medicines that have effects on the heart and prolong the QT interval on the ECG, the influence of their menstrual cycle and the corresponding increase in…
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