analgesic vs anodyne

analgesic and anodyne both are nouns.

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

As adjectives, analgesic and anodyne are synonyms defined as:

Other synonyms of analgesic include analgetic.

As nouns, analgesic and anodyne are synonyms defined as:

Other synonyms of analgesic include pain pill, painkiller.

analgesic (noun)	anodyne (noun)
a medicine used to relieve pain	a medicine used to relieve pain

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