Reconsideration of Simo Yinzi 1997.12.10

Reconsideration of Simo Yinzi 1997.12.10

Wuyao, Chenxiang, Binglang, and Renshen, each in equal parts—this formula is by Yan Yonghe, primarily treating qi rebellion and chest tightness caused by emotional disturbances, accompanied by frequent wheezing. Traditional Chinese medicine holds that when qi stagnates in the chest, it leads to wheezing and chest tightness. Thus, Wuyao breaks up the accumulated qi in the chest, Chenxiang descends qi, Binglang disperses qi, and Renshen reinforces qi to prevent excessive depletion. What exactly is this condition? Examining the common characteristics of Wuyao, Chenxiang, and Binglang, we find they all relieve gastric spasms and eliminate intestinal bloating. Chenxiang also relieves diaphragmatic tension and alleviates shortness of breath. According to Yan, qi rebellion and chest tightness with frequent wheezing are often caused by gastrointestinal spasms, leading to stomach bloating, chest tightness, and wheezing attacks. Overall, the main action of Simo Yinzi is on the gastrointestinal tract, not the chest or lungs. Looking at Zhu Danxi’s Yueju Wan, composed of Xiangfu, Chuanxiong, Shan Zhi, Cangzhu, and Shenqu, these herbs are also excellent for treating stomach problems. Chuanxiong is particularly effective for headaches and regulating menstruation; Shan Zhi is good at clearing heat and relieving irritability, and both can regulate vascular tension. Regulating vascular tension inherently involves regulating autonomic nerve function, so Yueju Wan treats discomfort in the chest and abdomen, making it essentially a sister formula to Simo Yinzi.