This document discusses antimalarial drugs, focusing on Cinchona and Artemisia. It defines antimalarials as drugs used to prevent or treat malaria, which is caused by four Plasmodium species and transmitted via mosquito bites. Cinchona, whose active compound is quinine, is derived from Cinchona trees and has been used traditionally to treat malaria. It also has other medicinal properties. Artemisia annua contains the antimalarial compound artemisinin and has been used to treat malaria as well as conditions like epilepsy and irregular periods.