nostrum vs curative

nostrum and curative both are nouns.

Word	Noun	Adjective	Verb	Adverb
nostrum	Yes	No	No	No
curative	Yes	Yes	No	No

As nouns, curative is a hypernym of nostrum; that is, curative is a word with a broader meaning than nostrum:

nostrum: hypothetical remedy for all ills or diseases; once sought by the alchemists
curative: a medicine or therapy that cures disease or relieve pain

Other hypernyms of nostrum include cure, remedy, therapeutic.

nostrum (noun)	curative (noun)
patent medicine whose efficacy is questionable	a medicine or therapy that cures disease or relieve pain
hypothetical remedy for all ills or diseases; once sought by the alchemists

nostrum (adjective)	curative (adjective)
	tending to cure or restore to health