blocking agent vs medicament

blocking agent and medicament both are nouns.

Word	Noun	Adjective	Verb	Adverb
blocking agent	Yes	No	No	No
medicament	Yes	No	No	No

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

blocking agent: a class of drugs that inhibit (block) some biological process
medicament: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other hypernyms of blocking agent include medication, medicinal drug, medicine.

blocking agent (noun)	medicament (noun)
a class of drugs that inhibit (block) some biological process	(medicine) something that treats or prevents or alleviates the symptoms of disease