metoprolol

noun

met·​o·​pro·​lol me-ˈtō-prə-ˌlȯl  -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

The products most vulnerable once that buffer runs thin would likely be everyday generics where supply chains are already tight and margins are thin — common antibiotics like amoxicillin, blood-pressure medications such as metoprolol, diabetes drugs like metformin, statins, and common painkillers. —Kevin Williams, CNBC, 16 Mar. 2026

Dozens of companies received approval from the FDA over the years to sell metoprolol and bupropion in the U.S. —Debbie Cenziper, ProPublica, 22 Dec. 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

Before taking propranolol or metoprolol, tell your healthcare provider about your medical conditions and history. —Karen Berger, Pharmd, Verywell Health, 13 Mar. 2025

Word History

Etymology

perhaps from methyl + -o- + propranolol

First Known Use

1974, in the meaning defined above

Medical Definition

metoprolol

noun

met·​o·​pro·​lol me-ˈtō-prə-ˌlȯl  -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.