tranquilizer vs antianxiety agent

tranquilizer and antianxiety agent both are nouns.

Word	Noun	Adjective	Verb	Adverb
tranquilizer	Yes	No	No	No
antianxiety agent	Yes	No	No	No

As nouns, tranquilizer and antianxiety agent are synonyms defined as:

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

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

tranquilizer (noun)	antianxiety agent (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