anxiolytic drug vs minor tranquilliser

anxiolytic drug and minor tranquilliser both are nouns.

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

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

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

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

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