anthelmintic vs medication

anthelmintic and medication both are nouns.

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

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

anthelmintic: a medication capable of causing the evacuation of parasitic intestinal worms
medication: (medicine) something that treats or prevents or alleviates the symptoms of disease

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

anthelmintic (noun)	medication (noun)
a medication capable of causing the evacuation of parasitic intestinal worms	the act of treating with medicines or remedies
	(medicine) something that treats or prevents or alleviates the symptoms of disease

anthelmintic (adjective)	medication (adjective)
capable of expelling or destroying parasitic worms