streptomycin vs antibiotic drug

streptomycin and antibiotic drug both are nouns.

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

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

streptomycin: an antibiotic produced by the actinomycete Streptomyces griseus and used to treat tuberculosis
antibiotic drug: a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections

Other hypernyms of streptomycin include antibiotic.

streptomycin (noun)	antibiotic drug (noun)
an antibiotic produced by the actinomycete Streptomyces griseus and used to treat tuberculosis	a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections