antibacterial vs medication

antibacterial and medication both are nouns.

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

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

antibacterial: any drug that destroys bacteria or inhibits their growth
medication: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other hypernyms of antibacterial include medicament, medicinal drug, medicine.

antibacterial (noun)	medication (noun)
any drug that destroys bacteria or inhibits their growth	the act of treating with medicines or remedies
	(medicine) something that treats or prevents or alleviates the symptoms of disease

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