isoniazid isonergic • isonicotinic · · · Info · Definitions · Synonyms · Characters · · isoniazid · · Text Latin · · Script 9 · · Length 5 · · Syllables Definitions · · · (noun) antibacterial drug (trade name Nydrazid) used to treat tuberculosis. Synonyms: INH, Nydrazid. · · Noun Definition 1 Synonyms · · · inh · · Synonym 1 nydrazid · · Synonym 2 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 z latin small letter z U+007A