astringent vs medicament

astringent and medicament both are nouns.

Word	Noun	Adjective	Verb	Adverb
astringent	Yes	Yes	No	No
medicament	Yes	No	No	No

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

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

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

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

astringent (adjective)	medicament (adjective)
tending to draw together or constrict soft organic tissue
sour or bitter in taste