What it’s for: 
Jia Wei Li Zhong Wan is a traditional Chinese herbal formula used to regulate the Qi and harmonize the Middle Jiao.  It is typically used to treat various digestive issues, including symptoms such as abdominal bloating, diarrhea, and loose stools, which are often associated with a condition known as “Spleen Qi deficiency” in TCM theory. It is often used to treat symptoms such as bloating, indigestion, and diarrhea.
Spleen plays a critical role in transforming the body’ nutrients into Yin, Yang, and Qi which are the fundamental energies for life. A strong Spleen can supply the body with abundant Yin, Yang, and Qi energy that may be present at low levels after birth. When the Spleen function is weak, digestion is compromised.
A common Spleen problem is insufficient Yang energy. Spleen Yang deficiency often comes with the Yang deficiency of the Stomach as well. As a result, one may experience coldness in the Stomach, abdominal distension, loose stool, and coldness of the limbs. 
Jia Wei Li Zhong Wan is a popular Chinese herbal medicine used to reinforce the Yang energy of the Spleen and Stomach.