Danggui Liuhuang Decoction: a classic prescription for nourishing yin, purging fire and consolidating the exterior.

Danggui Liuhuang Decoction is one of the classic prescriptions of traditional Chinese medicine. It is composed of seven herbs: angelica root, raw rehmannia root, cooked rehmannia root, skullcap, coptis, phellodendron, and astragalus. Its core functions are:Nourishes yin, clears away heat, stabilizes surface and stops sweating, mainly used to treat symptoms such as night sweats and hot flashes caused by yin deficiency and excessive fire. This article will be divided into five parts: prescription composition, compatibility principle, applicable symptoms, modern applications and precautions to help readers systematically understand its value and usage. The primary and secondary structure is clear: first analyze the origin of the prescription, then go into the pharmacology and clinical practice, and finally emphasize the importance of syndrome differentiation and treatment.

The composition and compatibility of the prescription are exquisite

Angelica Liuhuang Decoction"Three tonics and three diarrhea"Features of the compatibility: Angelica sinensis nourishes and activates blood circulation, raw and cooked rehmannia glutinosa nourishes yin and nourishes blood, and the three medicines jointly nourish the deficiency of yin and blood; skullcap, coptis and phellodendron respectively clear the fire of the upper, middle and lower three burners, purge the fire and preserve yin; astragalus replenishes qi and strengthens the surface, taking into account both antiperspiration and strengthening. This recipe balances the relationship between nourishing yin and clearing away heat, and is especially suitable for those with constitutions characterized by yin deficiency and excessive yang, as well as internal disturbances of deficiency and fire. Modern research shows that the ingredients in the prescription, such as baicalin and berberine, have anti-inflammatory and immune-regulating effects, providing scientific basis for their efficacy.

Applicable symptoms and key points for syndrome differentiation

Typical indications of this prescription includeNight sweats, five upset stomachs and fever, dry mouth and throat, red tongue with less coatingetc., commonly seen in patients with menopausal syndrome, tuberculosis or postoperative physical weakness. It is necessary to pay attention to distinguish it from spontaneous sweating due to simple qi deficiency (such as Yupingfeng San syndrome) or excessive sweating due to excess heat (such as Baihu Decoction syndrome). Clinical additions and subtractions are flexible: if there is severe Qi deficiency, Codonopsis pilosula can be added; if Yin deficiency is severe, Ophiopogon japonicus can be added. However, people with spleen and stomach deficiency should use it with caution to avoid bitter cold and stomach damage. The following is a comparison table of common symptoms:

Modern applications and considerations

Modern clinical practice expands the use of Danggui Liuhuang Decoction inDiabetes, hyperthyroidism, autonomic nervous system disordersSuch diseases are caused by yin deficiency and fire exuberance. Research shows it can regulate thyroid hormone levels (such as FT3, FT4) and improve insulin resistance. Three points should be paid attention to when using: first, the course of treatment should not be too long, and the disease will stop as soon as the disease is moderate; second, spicy and hot foods should be avoided during the medication; third, regular follow-up visits are required to adjust the dosage. A typical case can be seen in the "Journal of Traditional Chinese Medicine" reporting that the effective rate of hyperthyroidism treatment can reach 78.5% (sample size n=120).

Summary: Based on syndrome differentiation, make full use of classics

Danggui Liuhuang Decoction embodies the traditional Chinese medicine"Strengthen the Lord of Water to Control the Sun"The treatment idea is to solve the syndrome of mixed deficiency and excess by simultaneously nourishing yin and clearing away heat. Its value lies not only in the rigorous composition of the recipe, but also in inspiring future generations to understand the relationship between "fire and sweat". When using it, the principles of syndrome differentiation and treatment should be strictly followed, adjustments should be made in combination with physical constitution and comorbidities, and mechanical prescriptions should be avoided. As a cultural heritage, this prescription is still being used clinically, but it needs to be applied under the guidance of professional doctors.

Quote sources:
1. "The Secret Collection of the Orchid Chamber"·Li Dongyuan (Jin and Yuan Dynasties)
2. "Traditional Chinese Medicine Prescriptions" Ninth Edition·People's Medical Publishing House
3. Clinical data refer to "Journal of Traditional Chinese Medicine" Issue 6, 2021·China Academy of Traditional Chinese Medicine