anticholinergic vs medication

anticholinergic and medication both are nouns.

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

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

anticholinergic: a substance that opposes or blocks the action of acetylcholine
medication: (medicine) something that treats or prevents or alleviates the symptoms of disease

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

anticholinergic (noun)	medication (noun)
a substance that opposes or blocks the action of acetylcholine	the act of treating with medicines or remedies
	(medicine) something that treats or prevents or alleviates the symptoms of disease

anticholinergic (adjective)	medication (adjective)
inhibiting or blocking the action of acetylcholine at a receptor site