What are the main sources of natural medicines? There are many kinds.

I. Source and Application of Natural Drugs Natural drugs refer to natural products with pharmacological activities existing in nature such as animals, plants and minerals. Plants (mainly) 87% animals (such as Eupolyphaga, earthworm, etc. ) 12.3% natural medicinal minerals (such as gypsum caso42h2o) and 0.6% microorganisms (such as penicillium and actinomycetes). ) marine life. ......