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Jesuit's bark : ウィキペディア英語版 | Jesuit's bark
Jesuit's Bark, also called Peruvian Bark, is the historical name of the most celebrated specific remedy for all forms of malaria. It is so named because it was obtained from the bark of several species of the genus ''Cinchona'', of the Rubiaceae family, that have been discovered at different times and are indigenous in the Western Andes of South America and were first described and introduced by Jesuit priests who did missionary work in Peru. Other terms referring to this preparation and its source were "Jesuit's Tree", "Jesuit's Powder" and "Pulvis Patrum". ==Medicinal uses== Formerly, the bark itself, prepared in different forms, was used as a drug, but later in the 19th and early 20th centuries, natural harvesting of immense quantities formed the base of the production of cinchona alkaloids. This industry was carried on principally in Germany, and the Dutch and English cinchona plantations in Java, Ceylon and India were the chief sources where the raw material was supplied. Its main active principle, quinine, is now chemically synthesized. The term quinine comes from ''ghina'', or ''quina-quina'', the name given by Peruvian Indians to the bark, meaning ''medicine of medicines'' or ''bark of barks''.
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