What are the introductions of Shennong's herbal classics?

The Shennong Materia Medica Classic we saw was copied by later generations from herbal works of past dynasties, and it is called Shennong Materia Medica Classic. There were seven or eight editions in Ming and Qing dynasties, and even neighboring Japan had four editions.

From the compilation, we know that there are 365 kinds of drugs recorded in Materia Medica. Including grass, grain, rice, fruit, wood, insects, fish, livestock, stones and so on. The original author divided them into top grade, middle grade and inferior grade. Top-grade drugs are non-toxic and harmless tonic drugs for long-term use, such as ginseng, licorice, jujube, medlar, donkey-hide gelatin and so on. , *** 120 species; Traditional Chinese medicines, such as Salvia miltiorrhiza, Adenophora adenophora, Schisandra chinensis, Coptidis Rhizoma and Ephedra, are non-toxic or toxic and can suppress diseases and tonify deficiency. , *** 120 species. Inferior drugs are highly toxic, which can dispel cold and heat and break food accumulation, such as Euphorbia Euphorbia, Croton, Radix Aconiti Lateralis Preparata, Radix Kansui and Herba Polygoni Avicularis. , *** 125 species.

Each drug has a different name, smell, source and indication. The properties, compatibility and taboos that should be paid attention to in prescription medication are explained in detail. It also includes prescriptions for internal medicine, surgery, gynecology and other diseases 170. At the same time, it has also left valuable experience for future generations in medicine collection, pharmacy and medication.