tyrothricin vs antibiotic drug

tyrothricin and antibiotic drug both are nouns.

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

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

tyrothricin: a mixture of antibiotics applied locally to infections caused by Gram-positive bacteria
antibiotic drug: a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections

Other hypernyms of tyrothricin include antibiotic.

tyrothricin (noun)	antibiotic drug (noun)
a mixture of antibiotics applied locally to infections caused by Gram-positive bacteria	a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections