Heart Home > Esmolol

Esmolol is a medication used for treating irregular heart rhythms in emergency situations. It can also be administered during or after a surgery to treat rapid heart rates or high blood pressure. The medicine is very rapid and short-acting, making it ideal for use in emergency situations when immediate (but temporary) treatment is necessary. This beta blocker medicine is given by IV.

What Is Esmolol?

Esmolol hydrochloride (Brevibloc®) is a prescription medication approved to treat the following conditions:
  • Certain irregular heart rhythms (arrhythmias) in emergency situations
  • A rapid heart rate (tachycardia) or high blood pressure (hypertension) during or after surgery.
(Click What Is Esmolol Used For? for more information on what the medication is used for, including possible off-label uses.)

Potential Side Effects

As with any medicine, esmolol may cause side effects. However, not everyone who takes the drug will experience side effects (most people actually tolerate it quite well). If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider. Serious side effects are less common.
Some of the most common side effects include, but are not limited to:
(Click Side Effects of Esmolol to learn more, including potentially serious side effects that you should report immediately to your healthcare provider.)
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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