/ Thesaurus / T Synonyms of tocainide Find synonyms for: Noun1. tocainide, Tonocard, antiarrhythmic, antiarrhythmic drug, antiarrhythmic medicationusage: antiarrhythmic drug (trade name Tonocard) used to treat ventricular arrhythmias when less dangerous drugs have failedWordNet 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