Virazole vs antiviral drug

Virazole and antiviral drug both are nouns.

Word	Noun	Adjective	Verb	Adverb
Virazole	Yes	No	No	No
antiviral drug	Yes	No	No	No

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

Virazole: an inhaled antiviral agent (trade name Virazole) that may be used to treat serious virus infections
antiviral drug: any drug that destroys viruses

Other hypernyms of Virazole include antiviral, antiviral agent.

Virazole (noun)	antiviral drug (noun)
an inhaled antiviral agent (trade name Virazole) that may be used to treat serious virus infections	any drug that destroys viruses