amphotericin vs antibiotic drug

amphotericin and antibiotic drug both are nouns.

Word	Noun	Adjective	Verb	Adverb
amphotericin	Yes	No	No	No
antibiotic drug	Yes	No	No	No

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

amphotericin: an antibiotic and antifungal agent
antibiotic drug: a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections

Other hypernyms of amphotericin include antibiotic.

amphotericin (noun)	antibiotic drug (noun)
an antibiotic and antifungal agent	a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections