Natrii Sulfas (Mang Xiao)
Natri Sulfus is a type of herb that helps with certain health problems. It is used to clear heat and reduce swelling in the stomach and large intestine. It also helps to purge accumulation and guide out stagnation, as well as clear heat and drain fire. It has a bitter, spicy, and salty taste and is very cold in temperature. It is not recommended for people who are pregnant or have a deficiency of cold in their spleen and stomach. It is typically taken in doses of 6-18g. It should be used with caution during menstruation or postpartum.