Assertion: alkaloid quinine | /r/ObjectUse | used as prophylactic
Facets:
value: for treatment of malaria
type: PURPOSE
Source sentences:
text: However, it was soon discovered by the Dutch that the yellow-barked Cinchona from Peru gave much higher yields of the active alkaloid quinine (Purseglove, 1968), which was used both as a prophylactic and for treatment of malaria.