Four southern medicines-Alpinia oxyphylla, Areca catechu, Amomum villosum and Morinda officinalis; Ten Guangzhou medicines-Amomum villosum, Morinda Officinalis, Pericarpium Citri Tangerinae, Citrus Sarcodactylis, Aquilaria Resinatum, Alpinia officinarum, Pogostemon cablin, Pheretima and Agkistrodon.

Regarding the definition of southern medicine, some scholars believe that it is a medicinal material growing in tropical areas; Some people think that the medicinal materials produced in Vietnam are southern medicines; China's medicinal materials industry calls imported medicinal materials Nanyao. According to the general definition of domestic medicine, Nanyao refers to authentic medicinal materials produced in the south of China, accounting for about 1500 species. Including four southern medicines.