astringent drug vs medication

astringent drug and medication both are nouns.

Word	Noun	Adjective	Verb	Adverb
astringent drug	Yes	No	No	No
medication	Yes	No	No	No

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

astringent drug: a drug that causes contraction of body tissues and canals
medication: (medicine) something that treats or prevents or alleviates the symptoms of disease

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

astringent drug (noun)	medication (noun)
a drug that causes contraction of body tissues and canals	the act of treating with medicines or remedies
	(medicine) something that treats or prevents or alleviates the symptoms of disease