metoprolol
noun
met·o·pro·lol
me-ˈtō-prə-ˌlȯl 
-ˌlōl
-ˌlōl
: a beta-blocker C15H25NO3 used in the form of its succinate and tartrate especially to treat hypertension and angina pectoris
Examples of metoprolol in a Sentence
Recent Examples on the Web
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
Before taking propranolol or metoprolol, tell your healthcare provider about your medical conditions and history.
—Karen Berger, Pharmd, Verywell Health, 13 Mar. 2025
Beta blockers like metoprolol and propranolol are not very effective in people over 65, and are usually used only when there are other good reasons to use them, like in a person with heart disease or migraine.
—Dr. Keith Roach, oregonlive, 15 Mar. 2022
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Bhanvi Satija, Reuters, 30 Aug. 2025
Before taking propranolol or metoprolol, tell your healthcare provider about your medical conditions and history.
—Karen Berger, Pharmd, Verywell Health, 13 Mar. 2025
Beta blockers like metoprolol and propranolol are not very effective in people over 65, and are usually used only when there are other good reasons to use them, like in a person with heart disease or migraine.
—Dr. Keith Roach, oregonlive, 15 Mar. 2022
Cite this Entry
“Metoprolol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/metoprolol. Accessed 3 Nov. 2025.
Copy CitationMedical Definition
metoprolol
noun
met·o·pro·lol
me-ˈtō-prə-ˌlȯl
-ˌlōl
-ˌlōl
: a beta-blocker C15H25NO3 used in the form of its tartrate (C15H25NO3)2·C4H6O6 or succinate (C15H25NO3)2·C4H6O4 especially to treat hypertension, angina pectoris, and congestive heart failure
Note: Metoprolol is marketed under the trademarks Lopressor and Toprol.
Love words? Need even more definitions?
Merriam-Webster unabridged
Share