Professor Liu Jingyuan has been mainly engaged in the teaching and studying of warm diseases

and he has accumulated rich clinical experiences in the treatment of internal miscellaneous diseases

especially spleen and stomach diseases

for which he had unique insights and understandings. Based on the physiologic and pathological characteristics of the spleen and the stomach

he puts forward three method for spleen-stomach related diseases: reinforcing the middle energizer and strengthening the vital energy to invigorate the spleen and stomach and replenish qi; invigorating the spleen and nourishing the stomach to ascend yang of the spleen and descend qi of the stomach; ascending lucidity and descending turbidity of the body to regulate the movement of qi. The clinical prescriptions of Professor Liu have the following characteristics: he is expert at using Huangqi Jianzhong Decoction (Astragalus Center-Fortifying Decoction) to reinforce the middle energizer and strengthen the vital energy; in accord with the principle of "pungent for dispersion and bitter for descending"

he also uses Wuwei Zhisuan Decoction (Five-Ingredient Acidity-Reducing Decoction)

which brings extraordinary clinical effect in the treatment of hyperacidity. The formula treats both the symptoms and causes and contains only five ingredients: cuttlebone

thunberg fritillary bulb

coptis

medicinal evodia fruit and calcined arc shell.