Aspirin is used to treat pain and fever.
The active ingredient was developed from salicin.
Salicin occurs in the bark of the willow tree.
Taxol is an anti-cancer drug.
It is found in the Pacific Yew Tree.
Pacific Yew Tree is protected and slow growing.
Quinine is an anti-malarial drug.
It is found in the Cinchona Tree.
Works by killing the parasite.
Artemisinin is the new anti-malarial drug.
It is found in the Artemisia Annua plant.
Works by preventing transmission.