sulfonylurea vs antidiabetic

sulfonylurea and antidiabetic both are nouns.

Word	Noun	Adjective	Verb	Adverb
sulfonylurea	Yes	No	No	No
antidiabetic	Yes	No	No	No

As nouns, antidiabetic is a hypernym of sulfonylurea; that is, antidiabetic is a word with a broader meaning than sulfonylurea:

sulfonylurea: antidiabetic consisting of any of several drugs that reduce the level of glucose in the blood; used to treat diabetes mellitus
antidiabetic: a drug used to treat diabetes mellitus

Other hypernyms of sulfonylurea include antidiabetic drug.

sulfonylurea (noun)	antidiabetic (noun)
antidiabetic consisting of any of several drugs that reduce the level of glucose in the blood; used to treat diabetes mellitus	a drug used to treat diabetes mellitus