anxiolytic drug vs minor tranquillizer

anxiolytic drug and minor tranquillizer both are nouns.

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

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

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

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

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