Materia Medica

Peruvian Bark (Cinchona spp.) — Cinchona, Jesuit's Bark, Quinine Bark
A safety-focused guide to Peruvian bark and Cinchona species, covering Indigenous and colonial history, quinine’s antimalarial legacy, cinchonism, blood and kidney reactions, cardiac risks, drug interactions and why bark is not equivalent to prescription quinine. Read more...