Brevibloc is a brand name for the medication Esmolol, which is used to treat high blood pressure and certain heart conditions. There are several synonyms for Brevibloc, including Esmolol Hydrochloride, Brevimytal, and Esmolol HCl. While these names may be used interchangeably, it is important to note that they all contain the same active ingredient and work in the same way. Brevibloc and its synonyms belong to the class of medications known as beta-blockers, which work by blocking certain receptors in the heart to decrease blood pressure and slow the heart rate. While Brevibloc may be an effective treatment option for some individuals, it is important to discuss any potential side effects or risks with a healthcare provider.