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
Some also take beta-blockers to manage symptoms like a rapid heart rate and tremors.
—
Angela Haupt, Time, 16 June 2025
Untreated Graves’ disease can lead to heart problems and osteoporosis, and treatments include medication like beta-blockers and antithyroid agents, as well as radioiodine therapy and surgery.
—Natalie Oganesyan, Deadline, 14 June 2025
Some antidepressants, beta-blockers, sleep aids (like antihistamines and others) interfere with thermoregulation or sleep/REM architecture; consult your clinician about summer dosage tweaks.
—Jesse Pines, Forbes.com, 12 June 2025
Bathing too frequently, using hot water to shower, and spending a long time bathing
Medications like diuretics, beta-blockers, contraceptives, and retinoids1
4.
—Sherri Gordon, Health, 6 June 2025
Medications Certain prescription medications, such as beta-blockers used to treat high blood pressure, are famous for causing a runny nose as a side effect, Reisacher says.
—Sarah Klein, Time, 9 May 2025
People who are pregnant or lactating, taking beta-blockers, or have liver disease should consult their healthcare provider before adding green tea to their daily routines.
—Lindsay Curtis, Verywell Health, 4 Apr. 2025
Selective beta-blocker: This type of beta-blocker primarily targets beta-1 receptors, which are found in the heart.
—Karen Berger, Pharmd, Verywell Health, 13 Mar. 2025
There are trials of beta-blockers in breast cancer.
—Ingrid Wickelgren, Scientific American, 14 Feb. 2025
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Angela Haupt, Time, 16 June 2025
Untreated Graves’ disease can lead to heart problems and osteoporosis, and treatments include medication like beta-blockers and antithyroid agents, as well as radioiodine therapy and surgery.
—Natalie Oganesyan, Deadline, 14 June 2025
Some antidepressants, beta-blockers, sleep aids (like antihistamines and others) interfere with thermoregulation or sleep/REM architecture; consult your clinician about summer dosage tweaks.
—Jesse Pines, Forbes.com, 12 June 2025
Bathing too frequently, using hot water to shower, and spending a long time bathing
Medications like diuretics, beta-blockers, contraceptives, and retinoids1
4.
—Sherri Gordon, Health, 6 June 2025
Medications Certain prescription medications, such as beta-blockers used to treat high blood pressure, are famous for causing a runny nose as a side effect, Reisacher says.
—Sarah Klein, Time, 9 May 2025
People who are pregnant or lactating, taking beta-blockers, or have liver disease should consult their healthcare provider before adding green tea to their daily routines.
—Lindsay Curtis, Verywell Health, 4 Apr. 2025
Selective beta-blocker: This type of beta-blocker primarily targets beta-1 receptors, which are found in the heart.
—Karen Berger, Pharmd, Verywell Health, 13 Mar. 2025
There are trials of beta-blockers in breast cancer.
—Ingrid Wickelgren, Scientific American, 14 Feb. 2025
Cite this Entry
“Beta-blocker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/beta-blocker. Accessed 19 Jun. 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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