beta-blocker
noun
be·ta-block·er
ˈbā-tə-ˌblä-kər 
: any of a class of drugs (such as propranolol) that decrease the rate and force of heart contractions and lower high blood pressure by blocking the activity of beta-receptors
Examples of beta-blocker in a Sentence
Recent Examples on the Web
Combined alpha- and beta-blockers are used for the treatment of heart failure; they are sometimes prescribed for treating a hypertensive crisis.
—
Craig O. Weber, Verywell Health, 4 Dec. 2025
People with chronic kidney disease, or those taking beta-blockers or potassium-sparing diuretics, may also need to moderate their intake of high-potassium foods like sweet potatoes and yams.
—Daryl Austin, USA Today, 30 Nov. 2025
The team also identified a link between taking beta-blockers, angiotensin-converting enzyme (ACE) inhibitors, angiotensin receptor blockers and calcium-channel blockers – all drugs commonly used to treat heart disease or hypertension – and higher rates of severe negative side-effects.
—New Atlas, 9 Nov. 2025
Molecules that cling tighter Filling this research gap, a team led by Professor Yuhoon Hwang from Seoul National University of Science and Technology (SeoulTech) studied FCOPs as potential adsorbents for beta-blockers.
—Neetika Walter, Interesting Engineering, 15 Oct. 2025
Participants were assigned to either take a beta-blocker or not, within two weeks of leaving the hospital.
—Tom Gavin, EverydayHealth.com, 4 Sep. 2025
Why would women be more susceptible to harm from beta-blockers than men?
—Sandee Lamotte, CNN Money, 30 Aug. 2025
Some analysts have said aficamten has the potential to replace metoprolol, which belongs to a class of drugs called beta-blockers, as the first treatment given to patients with the heart condition.
—Bhanvi Satija, Reuters, 30 Aug. 2025
But beta-blockers may be a promising treatment, the research shows.
—Cara Lynn Shultz, People.com, 22 Aug. 2025
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Craig O. Weber, Verywell Health, 4 Dec. 2025
People with chronic kidney disease, or those taking beta-blockers or potassium-sparing diuretics, may also need to moderate their intake of high-potassium foods like sweet potatoes and yams.
—Daryl Austin, USA Today, 30 Nov. 2025
The team also identified a link between taking beta-blockers, angiotensin-converting enzyme (ACE) inhibitors, angiotensin receptor blockers and calcium-channel blockers – all drugs commonly used to treat heart disease or hypertension – and higher rates of severe negative side-effects.
—New Atlas, 9 Nov. 2025
Molecules that cling tighter Filling this research gap, a team led by Professor Yuhoon Hwang from Seoul National University of Science and Technology (SeoulTech) studied FCOPs as potential adsorbents for beta-blockers.
—Neetika Walter, Interesting Engineering, 15 Oct. 2025
Participants were assigned to either take a beta-blocker or not, within two weeks of leaving the hospital.
—Tom Gavin, EverydayHealth.com, 4 Sep. 2025
Why would women be more susceptible to harm from beta-blockers than men?
—Sandee Lamotte, CNN Money, 30 Aug. 2025
Some analysts have said aficamten has the potential to replace metoprolol, which belongs to a class of drugs called beta-blockers, as the first treatment given to patients with the heart condition.
—Bhanvi Satija, Reuters, 30 Aug. 2025
But beta-blockers may be a promising treatment, the research shows.
—Cara Lynn Shultz, People.com, 22 Aug. 2025
Cite this Entry
“Beta-blocker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/beta-blocker. Accessed 9 Dec. 2025.
Copy CitationMedical Definition
beta-blocker
noun
be·ta-block·er
-ˈbläk-ər
: any of a group of drugs (as propranolol) that combine with and block the activity of a beta-receptor to decrease the heart rate and force of contractions and lower high blood pressure and that are used especially to treat hypertension, angina pectoris, and ventricular and supraventricular arrhythmias compare alpha-blocker
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