/ Thesaurus / Q Synonyms of quinidex Find synonyms for: Noun1. quinidine, Quinidex, Quinora, antiarrhythmic, antiarrhythmic drug, antiarrhythmic medicationusage: cardiac drug (trade names Quinidex and Quinora) used to treat certain heart arrhythmiasWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language