Qingzao Jiufei Decoction: a classic prescription for moistening dryness and nourishing the lungs

Qingzao Jiufei Decoction is one of the classic prescriptions of traditional Chinese medicine. It is mainly used to treat symptoms such as warm dryness hurting the lungs, dry cough with less phlegm, and dry throat. Its core function isClear dryness and moisturize lungs, replenish qi and nourish yin, which is composed of mulberry leaves, gypsum, ginseng and other medicinal materials, and is both heat-clearing and tonic. This article will start from four aspects: the source of the prescription, composition analysis, applicable symptoms and modern applications, to help readers fully understand the clinical value of this prescription.

1. Origin and historical background of the prescription

Qingzao Jiufei Decoction came from Qing Dynasty doctorsYu JiayanThe "Medical Law" is designed to target the symptoms of autumn dryness damaging the lungs. Combining the theory of "Moisturizing dryness" in the Huangdi Neijing, Yu innovatively combined heat-clearing and yin-nourishing, becoming a benchmark prescription for treating warm-dryness syndrome. In the prescription, mulberry leaf is the king medicine, which can relieve lung dryness; gypsum clears lung heat; donkey hide gelatin and Ophiopogon japonicus nourish yin and moisturize dryness; ginseng and licorice nourish lung qi, which embodies the formulation idea of ​​"taking into account both specimens and specimens".

2. Exquisite drug composition and compatibility

This recipe consists of 8 herbs, each of which performs its own duties:

Medicinal materials	Dosage	Efficacy
Mulberry leaves	9g	Xuanfei and moisturizing
Gypsum	8g	Clear lung and stomach heat
Ginseng	6g	Replenishing qi and promoting fluid production
Licorice	3g	Blend medicines

Others such as almonds reduce qi and relieve coughs, flax seeds moisturize the intestines and relieve constipation, donkey-hide gelatin nourishes blood and moisturizes dryness, and Ophiopogon japonicus nourishes yin, which together form a three-dimensional treatment network of "clearing-moistening-tonifying".

3. Indications and key points of syndrome differentiation

This method is applicable toDry cough without phlegm, dry throat and nose, red tongue with little coatingTypical symptoms of warm-dryness are especially high in autumn. In modern clinical practice, it is used for chronic bronchitis, radiation pneumonitis and other patients with lung dryness and yin deficiency. It should be noted that it should not be used by those with exogenous wind-cold or phlegm-dampness cough. Typical cases include coughing up sputum with blood streaks, thirst and upset, and a thready pulse, which is consistent with the pathogenesis characteristics of "dryness and heat damaging the lungs, and deficiency of both Qi and Yin".

4. Modern research and usage suggestions

Modern pharmacological research shows that the mulberry leaves and Ophiopogon japonicus in the prescription have anti-inflammatory and immunomodulatory effects; gypsum can inhibit the fever reaction. Recommendations when usingThe cooking time should not be too long, to retain the medicinal properties of light Xuan. It can be combined with pear juice and honey to enhance the moisturizing effect, but patients with diabetes should use it with caution. There are now granules and other improved dosage forms that are easier to take.

Summary: A model of inheritance and innovation

Qingzao Jiufei Decoction has been clinically proven for three hundred years, and its characteristics of "moistening dryness but not dampness, clearing away heat without damaging the body" are particularly valuable. In the context of the increase in dryness syndrome caused by modern air pollution and air-conditioned environment, this prescription still has important value. When using, the syndrome should be strictly differentiated, and if necessary, modifications should be made under the guidance of a physician to avoid abuse on your own.

Quote sources:1. "Medical Laws" by Yu Jiayan (Qing Dynasty) 2. "Pharmacopoeia of the People's Republic of China" 2020 edition 3. China Traditional Chinese Medicine Press "Prescription Science" 10th edition