antifungal vs antifungal agent

antifungal and antifungal agent both are nouns.

Word	Noun	Adjective	Verb	Adverb
antifungal	Yes	Yes	No	No
antifungal agent	Yes	No	No	No

As nouns, antifungal and antifungal agent are synonyms defined as:

antifungal and antifungal agent: any agent that destroys or prevents the growth of fungi

Other synonyms of antifungal include antimycotic, antimycotic agent, fungicide.

antifungal (noun)	antifungal agent (noun)
any agent that destroys or prevents the growth of fungi	any agent that destroys or prevents the growth of fungi

antifungal (adjective)	antifungal agent (adjective)
capable of destroying fungi