Tonocard vs tocainide

Tonocard and tocainide both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tonocard	Yes	No	No	No
tocainide	Yes	No	No	No

As nouns, Tonocard and tocainide are synonyms defined as:

Tonocard and tocainide: antiarrhythmic drug (trade name Tonocard) used to treat ventricular arrhythmias when less dangerous drugs have failed

Tonocard (noun)	tocainide (noun)
antiarrhythmic drug (trade name Tonocard) used to treat ventricular arrhythmias when less dangerous drugs have failed	antiarrhythmic drug (trade name Tonocard) used to treat ventricular arrhythmias when less dangerous drugs have failed