Drugs that lengthen qt interval

Long QT syndrome (LQTS) is a cardiac conduction disorder characterized by prolongation and increased dispersion of ventricular repolarization, manifested by lengthening of the QT interval on the surface electrocardiography (ECG).

Sometimes long QT intervals only occur during exercise, at times of intense emotion, or after being startled. Inherited long QT syndrome is not nearly as common as a prolonged QT interval caused by a medication or an imbalance of certain minerals in the blood stream. Many medications are known to lengthen the QT interval and upset the heart rhythm.

Acquired LQTS can be caused by certain medications. Over 100 different medications can lengthen the QT interval (drug-induced long QT syndrome). Electrolyte

Some medications can affect heart rhythm by changing the QT interval. The QT interval is when the heart relaxes in between beats. A long QT interval can cause heart rhythm problems. Citalopram is known to prolong (lengthen) the QT interval. When combined with other medications that have this effect, it can be dangerous.

Acquired long QT syndrome is the result of conditions, medications or events that prolong the QT interval. A wide variety of drugs may lengthen the QT

Long QT syndrome (LQTS) is a cardiac conduction disorder characterized by prolongation and increased dispersion of ventricular repolarization, manifested by lengthening of the QT interval on the surface electrocardiography (ECG).

More than 100 medications many of them common can lengthen the QT interval in otherwise healthy people and cause a form of acquired long QT syndrome known as drug-induced long QT syndrome. Medications that can lengthen the QT interval and upset heart rhythm include:

Many medications are known to lengthen the QT interval and upset the heart rhythm. The two best understood inherited long QT syndromes are the

Interaction explained. Taking Plaquenil with another drug that can lengthen the QT interval can further lengthen your QT interval. This change