/ Thesaurus / L Synonyms of lopressor Find synonyms for: Noun1. metoprolol, Lopressor, beta blocker, beta-blocking agent, beta-adrenergic blocker, beta-adrenergic blocking agentusage: beta blocker (trade name Lopressor) used in treating hypertension and angina and arrhythmia and acute myocardial infarction; has adverse side effects (depression and exacerbation of congestive heart failure etc.)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: malady Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language