colchicine vs painkiller

colchicine and painkiller both are nouns.

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

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

colchicine: an analgesic drug derived from the saffron plant and used to treat gout
painkiller: a medicine used to relieve pain

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

colchicine (noun)	painkiller (noun)
an analgesic drug derived from the saffron plant and used to treat gout	a medicine used to relieve pain