/ Thesaurus / O Synonyms of omeprazole Find synonyms for: Noun1. omeprazole, Prilosec, antacid, gastric antacid, alkalizer, alkaliser, antiacidusage: antacid (trade name Prilosec) that suppresses acid secretion in the stomachWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: coincidence Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language