Among them, Magnolia Officinalis is used in a large amount, which can promote the circulation of qi, eliminate swelling and stagnation, cooperate with Fructus Aurantii Immaturus, and be used together with Magnolia Officinalis to enhance the function of promoting the circulation of qi, regulating qi and relaxing bowels. In addition, rhubarb purges heat to relieve constipation, which makes qi flow unobstructed and gastrointestinal stagnation discharged. In addition, Guizhi, Ginger, Glycyrrhiza uralensis Fisch and Jujube are added to make Guizhi Decoction remove white peony root. Guizhi and Ginger can warm yang, regulate qi and dispel cold, and also help to promote qi circulation. Together with Glycyrrhiza uralensis Fisch and Jujube, they have the effect of tonifying middle warmer and benefiting qi, and can prevent the drugs that promote qi circulation and dredge fu-organs from damaging healthy qi.
Therefore, the whole prescription is especially suitable for patients with weakness of spleen and stomach, deficiency of middle qi, deficiency of qi in middle, and constipation in interior. It belongs to the prescription of attacking and reinforcing, cold and warming, and can break Yangming's fu-organs and relieve exterior and interior. For epigastric fullness caused by gastrointestinal diseases, this recipe can be modified. Houpu Wuqi decoction can excrete yang deficiency, cold coagulation, cold dampness and turbid qi between gastrointestinal tract. Rhubarb and Houpu can regulate qi and dredge fu organs, and licorice, jujube, cassia twig and ginger can warm yang and restore the function of spleen and stomach, which is the biggest feature of this prescription. Therefore, it can be used to regulate constipation, abdominal distension or obesity in various gastrointestinal diseases.