Compendium of Materia Medica
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The Compendium of Materia Medica or Bencao Gangmu (Chinese: 本草綱目) is a Chinese herbology volume written by Li Shizhen during the Ming dynasty; its first draft was completed in 1578 and printed in Nanjing in 1596. It is a work that lists the materia medica of Chinese medicine known at the time. It lists plants, animals, minerals, that were believed to have medicinal properties.
|Compendium of Materia Medica|
|Literal meaning||Principles and Species of Roots and Herbs|
The title, translated as "Materia Medica, Arranged according to Drug Descriptions and Technical Aspects", uses two Chinese compounds. Bencao ("roots and herbs; based on herbs, pharmacopeia, materia medica") combines ben (本 'origin, basis') and cao (草 'grass, plant, herb'). Gangmu (Kang-mu; 'detailed outline; table of contents') combines gang (kang; 綱 'main rope, hawser; main threads, essential principles') and mu (目 'eye, look; category, division').
The text was written by Li Shizhen, who borrowed from the existing writings of Chinese medical scholars at the time. He wrote the first draft of the text in 1578, after conducting readings of 800 other medical reference books and carrying out 30 years of field study. But the final version was only published after he died. And at the time, the Ming dynasty emperor did not pay much attention to it.
The text consists of 1,892 entries, each entry with its own name called a gang. The mu in the title refers to the synonyms of each name.
The Compendium of Materia Medica has 53 volumes in total:
- At the very beginning is the table of contents, containing a list of entries included and 1,160 hand drawn diagrams to serve as illustrations.
- Volume 1 to 4 – an index (序例) and a comprehensive list of herbs that would treat the most common sickness (百病主治藥).
- Volume 5 to 53 – the main content of the text, containing 1,892 distinct herbs, of which 374 were added by Li Shizhen himself. There are 11,096 side prescriptions to treat common illness (8,160 of which is compiled in the text).
The text is written in almost 2 million Chinese characters, classified into 16 divisions and 60 orders. For every herb there are entries on their names, a detailed description of their appearance and odor, nature, medical function, side effects, recipes etc.
Compendium of Materia Medica contains information that was proven to be wrong due to Li Shizhen's limited scientific and technical knowledge. For example, it is claimed that lead is not toxic. It is also claimed that otters are "always male", and that the Moupin langur is ten feet tall, has backwards feet and can be caught when it draws its upper lip over its eyes.
The Compendium of Materia Medica has a brief explanation of the medical efficacy of pangolin scales: "Pangolins (chuan shan jia, meaning "mountain-penetrating scales") are able to penetrate mountains, accordingly they can pass through in the meridians." In other words, it is able to pass through blockages in the meridians.
The Ming emperor did not pay much attention to the work at the time it was published. It was only published after Li Shizhen died.
With the publication of Compendium of Materia Medica provided classification of how traditional medicine was compiled and formatted, as well as biology classification of both plants and animals.
The compendium corrected some mistakes in the knowledge of herbs and diseases at the time. Several new new herbs and more details from experiments were also included. It also has notes and records on general medical data and medical history.
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