Effects and Functions of Bu Zhong Yi Qi Wan
Bu Zhong Yi Qi Wan is a traditional Chinese patent medicine whose principal ingredients include Astragalus membranaceus (Huang Qi), Codonopsis pilosula (Dang Shen), honey-fried Glycyrrhiza uralensis (Zhi Gan Cao), stir-fried Atractylodes macrocephala (Chao Bai Zhu), Angelica sinensis (Dang Gui), Cimicifuga foetida (Sheng Ma), Bupleurum chinense (Chai Hu), and aged Citrus reticulata peel (Chen Pi).

Astragalus membranaceus tonifies the Spleen and augments Qi, elevates Yang Qi, and strengthens Lung Qi. Ginseng (or Codonopsis), Atractylodes macrocephala, and honey-fried Glycyrrhiza uralensis collectively strengthen the Spleen and augment Qi while harmonizing the Middle Jiao and regulating the Stomach. Cimicifuga foetida and Bupleurum chinense elevate sinking Yang Qi. Aged Citrus reticulata peel regulates Qi flow and harmonizes the Middle Jiao. Angelica sinensis nourishes the Blood and replenishes deficiency to support Qi augmentation. Therefore, Bu Zhong Yi Qi Wan functions to tonify the Spleen and augment Qi, elevate Yang Qi, lift prolapsed organs, strengthen the Spleen, and resolve Dampness.
It is primarily indicated for syndromes of Spleen-Qi collapse, manifesting as rectal prolapse, uterine prolapse, chronic diarrhea or dysentery, metrorrhagia and metrostaxis, shortness of breath, fatigue, pale tongue, and weak pulse.

It may also be used for conditions arising from Spleen-Qi deficiency—such as reduced appetite, low voice, lassitude, fatigue exacerbated by exertion, shortness of breath upon activity, pale tongue coating, and deficient, soft pulse—as well as for Qi-deficiency fever syndrome, characterized by fever with spontaneous sweating, headache, aversion to cold, preference for warm beverages, low voice, poor appetite, fatigue, and a deficient, large, and forceless pulse.