Mechanisms of Q-Tc Interval Prolongation with Antidepressants and ... or disruption of hERG potassium channels. Though these drugs had little direct effect on cardiac ion channels, the effects ...

Because internists and psychiatrists very frequently prescribe QT prolonging medications, their substantial lack of knowledge of the QT interval poses a significant problem. Respondents who ...

Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment. Serious. These medicines may interact and cause very harmful effects.

Certain drugs, including hydroxyzine, can cause an irregular heart rhythm called QT prolongation. Taking other drugs that also affect heart rhythm increases this risk. Also known as long QT ...

Risk of QT prolongation: electrolyte disturbances (eg, hypokalemia, hypomagnesemia), underlying cardiac abnormalities, hypothyroidism, familial long QT-syndrome, concomitant drugs known to prolong ...

Protect from light. History of QT prolongation. Congenital long QT syndrome. Recent acute MI. Uncompensated heart failure. Concomitant drugs that cause QT prolongation, including dofetilide ...

A prolonged QT interval has a variety of causes and can be a very serious ECG finding, as it may lead to the potentially fatal arrhythmia polymorphic ventricular tachycardia (Torsades de Pointes).