Understanding Esmolol's Effects and Safety Precautions

What Should I Tell My Healthcare Provider Before Taking Esmolol?

You should talk with your healthcare provider prior to taking this medication if you have:
Also, let your healthcare provider know if you are:
Make sure to tell your healthcare provider about all other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
(Click Precautions and Warnings With Esmolol to learn more, including information on who should not take the drug.)

How Does It Work?

Esmolol belongs to a group of drugs called beta-adrenergic blocking agents, more often known as beta blockers. As the name implies, these medications block beta receptors in the body. Beta receptors are located in a number of places within the body, including the heart and blood vessels. Stress hormones (such as adrenaline) bind to these receptors and cause certain reactions in the body, such as:
By blocking beta receptors, esmolol causes the reverse effect of stress hormones and reduces blood pressure and heart rate. It is also important to note that esmolol is more likely to block beta-1 receptors (such as those in the heart), opposed to beta-2 receptors (such as those found in the lungs), which can theoretically make the medication safer than other beta blockers for people with breathing problems such as asthma.
Esmolol is very rapid and short-acting, making it ideal for use in emergency situations when immediate (but temporary) treatment of rapid heart rates or hypertension is necessary.
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Esmolol Drug Information

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