aztreonam vs antibiotic drug

aztreonam and antibiotic drug both are nouns.

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

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

aztreonam: an antibiotic (trade name Azactam) used against severe infections; has minimal side effects
antibiotic drug: a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections

Other hypernyms of aztreonam include antibiotic.

aztreonam (noun)	antibiotic drug (noun)
an antibiotic (trade name Azactam) used against severe infections; has minimal side effects	a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections