ataractic agent vs ataractic drug

ataractic agent and ataractic drug both are nouns.

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

As nouns, ataractic agent and ataractic drug are synonyms defined as:

ataractic agent and ataractic drug: a drug used to reduce stress or tension without reducing mental clarity

Other synonyms of ataractic agent include antianxiety agent, ataractic, tranquilizer, tranquilliser, tranquillizer.

ataractic agent (noun)	ataractic drug (noun)
a drug used to reduce stress or tension without reducing mental clarity	a drug used to reduce stress or tension without reducing mental clarity