chloroquine vs antimalarial

chloroquine and antimalarial both are nouns.

Word	Noun	Adjective	Verb	Adverb
chloroquine	Yes	No	No	No
antimalarial	Yes	No	No	No

As nouns, antimalarial is a hypernym of chloroquine; that is, antimalarial is a word with a broader meaning than chloroquine:

chloroquine: an antimalarial drug used to treat malaria and amebic dysentery and systemic lupus erythematosus
antimalarial: a medicinal drug used to prevent or treat malaria

Other hypernyms of chloroquine include antimalarial drug.

chloroquine (noun)	antimalarial (noun)
an antimalarial drug used to treat malaria and amebic dysentery and systemic lupus erythematosus	a medicinal drug used to prevent or treat malaria