methenamine vs antibacterial

methenamine and antibacterial both are nouns.

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

As nouns, antibacterial is a hypernym of methenamine; that is, antibacterial is a word with a broader meaning than methenamine:

methenamine: antibacterial agent (trade names Mandelamine and Urex) that is contained in many products that are used to treat urinary infections
antibacterial: any drug that destroys bacteria or inhibits their growth

Other hypernyms of methenamine include antibacterial drug, bactericide.

methenamine (noun)	antibacterial (noun)
antibacterial agent (trade names Mandelamine and Urex) that is contained in many products that are used to treat urinary infections	any drug that destroys bacteria or inhibits their growth

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