analgesic vs medicament

analgesic and medicament both are nouns.

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

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

analgesic: a medicine used to relieve pain
medicament: (medicine) something that treats or prevents or alleviates the symptoms of disease

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

analgesic (noun)	medicament (noun)
a medicine used to relieve pain	(medicine) something that treats or prevents or alleviates the symptoms of disease

analgesic (adjective)	medicament (adjective)
capable of relieving pain