hydroxychloroquine vs. chloroquine

hydroxychloroquine

[hahy-drok-si-klawr-uh-kween, -kwin] / haɪˌdrɒk sɪˈklɔr əˌkwin, -kwɪn /

noun

Pharmacology.

a colorless crystalline solid, C 18 H 26 ClN 3 O, used in the treatment of malaria, lupus erythematosus, and rheumatoid arthritis. HCQ

chloroquine

[klawr-uh-kwin, -kween, klohr-] / ˈklɔr ə kwɪn, -ˌkwin, ˈkloʊr- /

Pharmacology.

a synthetic substance, C 18 H 26 ClN 3 , used chiefly to control malaria attacks.