anxiolytic vs ataractic drug

anxiolytic and ataractic drug both are nouns.

Word	Noun	Adjective	Verb	Adverb
anxiolytic	Yes	Yes	No	No
ataractic drug	Yes	No	No	No

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

anxiolytic: a tranquilizer used to relieve anxiety and reduce tension and irritability
ataractic drug: a drug used to reduce stress or tension without reducing mental clarity

anxiolytic (noun)	ataractic drug (noun)
a tranquilizer used to relieve anxiety and reduce tension and irritability	a drug used to reduce stress or tension without reducing mental clarity

anxiolytic (adjective)	ataractic drug (adjective)
anxiety relieving