a medicinal drug used to fight diseases (like malaria) that are caused by protozoa

an antimalarial drug used to treat malaria and amebic dysentery and systemic lupus erythematosus

an antimalarial drug (trade name Larium and Mephaquine) that is effective in cases that do not respond to chloroquine; said to produce harmful neuropsychiatric effects on some people

synthetic antimalarial drug

a drug (trade name Atabrine) used to treat certain worm infestations and once used to treat malaria

a bitter alkaloid extracted from chinchona bark; used in malaria therapy