Drugs That Slow the Heart (Antidysrhythmic Drugs)

Examples

Adenosine - PSVT is characterized by rapid onset. The patient may experience a fluttering in the chest lightheadedness or fainting. Adenosine is given by rapid intravenous injection and is very effective at ending PSVT and restoring a normal heart beat.

Esmolol - Esmolol may be given as an IV bolus and/or by continuous infusion. It acts quickly when started and its effects go away quickly when it is stopped

Propranolol - Propranolol is used both as a tablet by mouth (PO) and by IV injection to slow heart heart rate in a variety of rhythm disturbances. It is used for a wide variety of other purposes as well.

What are antidysrhythmic drugs that slow the heart?

Under certain circumstances, the heart rate or blood pressure may increase dramatically with possible serious consequences. Most of these drugs decrease the heart rate and may lower blood pressure.

Why are they given?

The doctor prescribes this type of drug when the patient's heart rate is too fast or blood pressure is too high. By decreasing the heart rate or blood pressure, these drugs may diminish the potential harm to the heart or the rest of the body.

How long are they used?

Sometimes, they are only used once. Under certain circumstances, they may be used indefinitely.

Do they have side effects?

These drugs do have side effects ranging from minor to serious. Common side effects include a slow heart rate, an upset stomach, and occasionally shortness of breath.