Yangyin Qingfei Decoction: Analysis of traditional prescriptions for nourishing yin and moisturizing the lungs

Yangyin Qingfei Decoction is a classic prescription of traditional Chinese medicine. It is mainly used for dry cough, dry throat and other symptoms caused by yin deficiency and lung dryness. This article will start fromPrescription composition, efficacy principle, applicable population, modern application and precautionsFive aspects are developed, focusing on analyzing its core function of nourishing yin and moisturizing the lungs, supplemented by the synergistic effect of compatible medicinal materials. The content is clear in priority and takes into account both traditional theory and practical application.

The composition and compatibility of the prescription are exquisite

Yangyin Qingfei DecoctionRehmannia glutinosa, Ophiopogon japonicus, ScrophulariaceaeAs the main medicine, it nourishes yin and moisturizes dryness; supplemented byWhite peony root and licorice rootSoftens the liver and relieves anxiety,Mint, FritillariaClear away heat and resolve phlegm. Among them, raw rehmannia glutinosa is used in the largest amount (usually 12-15 grams), which lays the foundation for nourishing yin, while mint is light and refreshing, taking into account throat symptoms. This compatibility not only targets the root cause of lung yin deficiency, but also alleviates the symptoms of hot and dry attacks, embodying the thinking of "taking into account both the symptoms and the root cause" of traditional Chinese medicine.

Efficacy Principles and Traditional Chinese Medicine Theory

The party follows"Gold and water create each other"Theory, nourish lung yin (metal) by tonifying kidney yin (water). Modern research shows that the ingredients such as Ophiopogon japonicus polysaccharide and Scrophulariaceae glycoside in the prescription can regulate respiratory mucus secretion and relieve mucosal dryness. Applicable toLong-term smokers and patients with Sjogren's syndromeOr cough caused by autumn dryness that damages the lungs, but should be used with caution in those with yang deficiency and fear of cold.

Modern applications and clinical validation

Clinical data shows that Yangyin Qingfei Decoction is effective in treating chronic pharyngitis up to 78% (see table below). In recent years, it has also been improved into granules, lozenges and other dosage forms. It should be noted that spicy food should be avoided during taking the medicine, andTremella, pearsWait for dietary therapy to enhance the effect. When used in combination with western medicine, it is recommended to wait 2 hours to avoid interaction.

Summary and inheritance value

Yangyin Qingfei Decoction is a famous prescription in "Chonglou Jade Key" in the Qing Dynasty, and it still embodies the medicinal wisdom of "treating dryness like feathers" of traditional Chinese medicine. Its value lies not only in symptomatic treatment, but also in restoring the balance of lung yin through overall conditioning. When using it, it is necessary to differentiate the syndrome and adjust the compatibility according to the physical constitution to achieve the best effect.

Quote sources:1. "Chonglou Jade Key" (Qing Dynasty·Zheng Meijian) 2. "Chinese Clinical Chinese Materia Medica" (Chief Editor Zhang Tingmo) 3. "Research on the Improved Dosage Form of Yangyin Qingfei Decoction" in 2021 of the Chinese Journal of Traditional Chinese Medicine