Diuril vs antihypertensive drug

Diuril and antihypertensive drug both are nouns.

Word	Noun	Adjective	Verb	Adverb
Diuril	Yes	No	No	No
antihypertensive drug	Yes	No	No	No

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

Diuril: a diuretic drug (trade name Diuril) used in the treatment of edema and hypertension
antihypertensive drug: a drug that reduces high blood pressure

Other hypernyms of Diuril include antihypertensive, thiazide.

Diuril (noun)	antihypertensive drug (noun)
a diuretic drug (trade name Diuril) used in the treatment of edema and hypertension	a drug that reduces high blood pressure