anti-impotence drug vs virility drug

anti-impotence drug and virility drug both are nouns.

Word	Noun	Adjective	Verb	Adverb
anti-impotence drug	Yes	No	No	No
virility drug	Yes	No	No	No

As nouns, anti-impotence drug and virility drug are synonyms defined as:

anti-impotence drug and virility drug: drug to treat impotence attributable to erectile dysfunction

anti-impotence drug (noun)	virility drug (noun)
drug to treat impotence attributable to erectile dysfunction	drug to treat impotence attributable to erectile dysfunction