aminopyrine vs painkiller

aminopyrine and painkiller both are nouns.

Word	Noun	Adjective	Verb	Adverb
aminopyrine	Yes	No	No	No
painkiller	Yes	No	No	No

As nouns, painkiller is a hypernym of aminopyrine; that is, painkiller is a word with a broader meaning than aminopyrine:

aminopyrine: a white crystalline substance used as an analgesic and antipyretic
painkiller: a medicine used to relieve pain

Other hypernyms of aminopyrine include analgesic, anodyne, pain pill.

aminopyrine (noun)	painkiller (noun)
a white crystalline substance used as an analgesic and antipyretic	a medicine used to relieve pain