Yu Gong Powder: Analysis of a classic prescription for warming yang and diluting water

Yugong Powder is one of the classic prescriptions of traditional Chinese medicine. Its main functions are to warm yang and transform qi, diuresis and reduce swelling. It is often used to treat edema, dysuria and other symptoms. This article will start from four levels: prescription composition, efficacy principle, applicable symptoms and modern application, and combine ancient book records and modern research to systematically analyze its clinical value. In terms of primary and secondary structure, we first introduce the source of prescription and its basic compatibility, then analyze its pharmacological effects in depth, and finally discuss matters needing attention in practical application.

Prescription traceability and core compatibility

Yu Gong San was first published in "Introduction to Medicine" byMorning glory, cuminIt is composed of two herbs and is named after "Dayu's achievements in controlling floods". Morning glory seeds are purgative and expel water, while fennel is warming and promoting qi. They have the effect of reducing water and reducing swelling. Li Zhen, a physician in the Ming Dynasty, emphasized its pertinence in "Introduction to Medicine" for "treating edema due to Yang water and obstruction of bowel movements", which is especially suitable forcold-damp edema. The modern "Pharmacopoeia of the People's Republic of China" also includes this prescription to verify the scientific nature of its traditional efficacy.

Mechanism of action and key points of syndrome differentiation

The party passesStimulate intestinal peristalsis(Morning glory seeds contain morning glory glycosides) andImprove microcirculation(Volatile oil of cumin promotes blood vessel dilation) works synergistically. Clinical syndrome differentiation requires distinguishing between yang water and yin water: yang water is characterized by edema of the head and face, short red urine, and yellow and greasy tongue coating; yin water is characterized by edema of the lower limbs and chills in the limbs. Yu Gong Powder is more suitableYangshui evidence, those with spleen and kidney yang deficiency need to be combined with warm tonic medicines such as Aconite and Atractylodes. The following table lists its typical indications:

Modern applications and considerations

Modern research has confirmed that Yu Gongsan isCirrhosis, ascites, nephritis and edemaIt has certain auxiliary effects, but the dosage must be strictly followed (no more than 6g of morning glory per day). Because morning glory has certain toxicity, it is contraindicated by pregnant women and the infirm. Clinical observations in 2020 by Shanghai University of Traditional Chinese Medicine showed that the effectiveness increased by 18% when used in conjunction with diuretic Western medicine (data source: "Journal of Integrated Traditional Chinese and Western Medicine for Liver Disease"). It is recommended to take it on an empty stomach in the morning and to replenish electrolytes after taking the medicine to prevent dehydration.

Summary and extended thoughts

Yu Gong Powder embodies the syndrome differentiation thinking of "applying both attack and supplement" in traditional Chinese medicine, and its simplicity and effectiveness still have practical value today. However, it should be noted: ① It cannot be used alone for a long time, and the disease will stop immediately; ② Modern nutrition recommends combining it with a low-salt diet; ③ Compared with diuretics such as Wulingsan, it is more focused onEmpirical water stop. As a traditional prescription, it should be used under the guidance of a doctor based on syndrome differentiation and to avoid blind application.

Quote source:
1. "Introduction to Medicine" (Li Bian, Ming Dynasty)
2. "Pharmacopoeia of the People's Republic of China" 2020 Edition
3. Clinical Observation Report of "Journal of Integrated Traditional Chinese and Western Medicine for Hepatology" of Shanghai University of Traditional Chinese Medicine