antimycin vs antibiotic drug

antimycin and antibiotic drug both are nouns.

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

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

antimycin: a crystalline antibiotic active against various fungi
antibiotic drug: a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections

Other hypernyms of antimycin include antibiotic.

antimycin (noun)	antibiotic drug (noun)
a crystalline antibiotic active against various fungi	a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections