Catapres vs antihypertensive

Catapres and antihypertensive both are nouns.

Word	Noun	Adjective	Verb	Adverb
Catapres	Yes	No	No	No
antihypertensive	Yes	No	No	No

As nouns, antihypertensive is a hypernym of Catapres; that is, antihypertensive is a word with a broader meaning than Catapres:

Catapres: an antihypertensive (trade name Catapres) that can be administered orally or via transdermal patches
antihypertensive: a drug that reduces high blood pressure

Other hypernyms of Catapres include antihypertensive drug.

Catapres (noun)	antihypertensive (noun)
an antihypertensive (trade name Catapres) that can be administered orally or via transdermal patches	a drug that reduces high blood pressure