Sectral vs beta-blocking agent

Sectral and beta-blocking agent both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sectral	Yes	No	No	No
beta-blocking agent	Yes	No	No	No

As nouns, beta-blocking agent is a hypernym of Sectral; that is, beta-blocking agent is a word with a broader meaning than Sectral:

Sectral: an oral beta blocker (trade name Sectral) used in treating hypertension
beta-blocking agent: any of various drugs used in treating hypertension or arrhythmia; decreases force and rate of heart contractions by blocking beta-adrenergic receptors of the autonomic nervous system

Other hypernyms of Sectral include beta-adrenergic blocker, beta-adrenergic blocking agent, beta blocker.

Sectral (noun)	beta-blocking agent (noun)
an oral beta blocker (trade name Sectral) used in treating hypertension	any of various drugs used in treating hypertension or arrhythmia; decreases force and rate of heart contractions by blocking beta-adrenergic receptors of the autonomic nervous system