interferon vs antiviral agent

interferon and antiviral agent both are nouns.

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

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

interferon: an antiviral protein produced by cells that have been invaded by a virus; inhibits replication of the virus
antiviral agent: any drug that destroys viruses

Other hypernyms of interferon include antiviral, antiviral drug.

interferon (noun)	antiviral agent (noun)
an antiviral protein produced by cells that have been invaded by a virus; inhibits replication of the virus	any drug that destroys viruses