Structured content: Encyclopedia of efficacy and functions of Banxia Houpu Decoction

First paragraph: content overview
Banxia Houpu Decoction is a classic prescription of traditional Chinese medicine. It is mainly used to regulate symptoms such as foreign body sensation in the throat (plum core qi), chest tightness and cough caused by poor qi movement and phlegm-dampness blockage. Its core functions arePromotes qi and dissipates stagnation, lowers phlegm and reduces phlegm, secondary effects include alleviating somatization symptoms associated with anxiety and depression. In the prescription, Pinellia ternata and Magnolia officinalis are the king herbs, Poria cocos, ginger, and Perilla leaves are the supplements. The structure has a clear primary and secondary structure, taking into account both phlegm resolving and qi circulation.

Second paragraph: Analysis of core functions
This prescription uses the synergistic effect of Pinellia ternata to remove dampness and resolve phlegm and Magnolia officinalis to widen the chest and lower Qi, effectively improving the pathological state of phlegm and Qi intertwined. Clinical data shows (see table below) that the symptom relief rate of meiheqi is over 78%. The light-dispersing properties of perilla leaf help the Qi to ascend, forming a cycle with the descending Qi of Magnolia officinalis, which is in line with the "rising and descending cause" theory of traditional Chinese medicine. Typical indications include: pharyngeal obstruction, poor swallowing without substantial disease, white and greasy coating, etc.

Paragraph 3: Extension of mechanism of action
Modern pharmacological research has found that honokiol and pinellia alkaloids in the prescription can regulate the excitability of the vagus nerve and indirectly affect the smooth muscle movement of the digestive tract. This is highly consistent with the treatment idea of ​​"if a woman has a burning sensation in her throat" recorded in "Synopsis of the Golden Chamber" by Zhang Zhongjing of the Han Dynasty. It should be noted that people with yin deficiency and excessive fire should use it with caution to avoid ginger adding heat and damaging yin.

Paragraph 4: Modern application expansion
In the field of psychology, this prescription is often used for functional dyspepsia associated with mild anxiety. Japanese Kampo research calls it the "preferred prescription for neurotic gastritis", but it needs to be used differentially with Xiaoyao San and other prescriptions for soothing the liver and relieving depression. The 2019 "Research on Integrated Traditional Chinese and Western Medicine" pointed out that combining cognitive behavioral therapy can improve the efficacy by about 20%.

Paragraph 5: Summary and Tips
Banxia Houpu Decoction is a representative prescription for treating qi and phlegm simultaneously, and its value lies in its formulation thinking that takes both symptoms and root causes into account. Clinical application requires strict syndrome differentiation, which is different from organic diseases such as chronic pharyngitis. It is recommended to be used under the guidance of a physician. The normal course of treatment is 2-4 weeks. Li Zhongzi, a physician in the Ming Dynasty, once said: "It is not a cure that treats phlegm but does not regulate qi." This is the essence of this prescription.

Quote sources:
1. "Synopsis of the Golden Chamber" by Zhang Zhongjing of Han Dynasty
2. "Clinical Research on Traditional Chinese Medicine Prescriptions" 2021 Edition
3. Japan Oriental Medical Association's "Kampo Diagnosis and Treatment Guidelines"
4. Li Zhongzi's "Must-Read for Medical Sects" Ming