antibacterial drug vs antibacterial

antibacterial drug and antibacterial both are nouns.

Word	Noun	Adjective	Verb	Adverb
antibacterial drug	Yes	No	No	No
antibacterial	Yes	Yes	No	No

As nouns, antibacterial drug and antibacterial are synonyms defined as:

antibacterial drug and antibacterial: any drug that destroys bacteria or inhibits their growth

Other synonyms of antibacterial drug include bactericide.

antibacterial drug (noun)	antibacterial (noun)
any drug that destroys bacteria or inhibits their growth	any drug that destroys bacteria or inhibits their growth

antibacterial drug (adjective)	antibacterial (adjective)
	destroying bacteria or inhibiting their growth