minor tranquilizer vs anxiolytic drug

minor tranquilizer and anxiolytic drug both are nouns.

Word	Noun	Adjective	Verb	Adverb
minor tranquilizer	Yes	No	No	No
anxiolytic drug	Yes	No	No	No

As nouns, minor tranquilizer and anxiolytic drug are synonyms defined as:

minor tranquilizer and anxiolytic drug: a tranquilizer used to relieve anxiety and reduce tension and irritability

Other synonyms of minor tranquilizer include antianxiety drug, anxiolytic, minor tranquilliser, minor tranquillizer.

minor tranquilizer (noun)	anxiolytic drug (noun)
a tranquilizer used to relieve anxiety and reduce tension and irritability	a tranquilizer used to relieve anxiety and reduce tension and irritability