antiviral agent vs medicament

antiviral agent and medicament both are nouns.

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

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

antiviral agent: any drug that destroys viruses
medicament: (medicine) something that treats or prevents or alleviates the symptoms of disease

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

antiviral agent (noun)	medicament (noun)
any drug that destroys viruses	(medicine) something that treats or prevents or alleviates the symptoms of disease