Phytotherapy
（重定向自Phytotherapist）
![Herbal medicine guidebook «De Materia Medica», XII—XIII.](/Images/godic/202502/02/Arabic_herbal_medicine_guidebook5948.jpeg")
![The bark of the cinchona tree contains quinine, which today is a widely prescribed treatment for malaria, especially in countries that cannot afford to purchase the more expensive anti-malarial drugs produced by the pharmaceutical industry.](/Images/godic/202502/02/Cinchona_officinalis_0015948.JPG")
Phytotherapy is the study of the use of extracts of natural origin as medicines or health-promoting agents. Phytotherapy medicines differ from plant-derived medicines in standard pharmacology. Where standard pharmacology isolates an active compound from a given plant, phytotherapy aims to preserve the complexity of substances from a given plant with relatively less processing.