lypressin vs antidiuretic drug

lypressin and antidiuretic drug both are nouns.

Word	Noun	Adjective	Verb	Adverb
lypressin	Yes	No	No	No
antidiuretic drug	Yes	No	No	No

As nouns, antidiuretic drug is a hypernym of lypressin; that is, antidiuretic drug is a word with a broader meaning than lypressin:

lypressin: an antidiuretic and vasoconstrictor used to treat diabetes insipidus
antidiuretic drug: a drug that limits the formation of urine

Other hypernyms of lypressin include antidiuretic, pressor, vasoconstrictive, vasoconstrictor.

lypressin (noun)	antidiuretic drug (noun)
an antidiuretic and vasoconstrictor used to treat diabetes insipidus	a drug that limits the formation of urine