hypnotic vs soporific

hypnotic and soporific both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypnotic	Yes	Yes	No	No
soporific	Yes	Yes	No	No

As nouns, hypnotic and soporific are synonyms defined as:

hypnotic (noun)	soporific (noun)
a drug that induces sleep	a drug that induces sleep

hypnotic (adjective)	soporific (adjective)
of or relating to hypnosis	sleep inducing
attracting and holding interest as if by a spell	inducing mental lethargy