1. Qing Qi Hua Tan Tang Prescription Source & History

1. Origin and Inheritance

 Qing qi Hua tan Decoction It is mainly recorded in the medical classic 'Medical Anecdotes of Comprehension' written by the famous doctor Cheng Guopeng in the Qing Dynasty. Cheng Guopeng was a highly influential medical scientist in the Qing Dynasty. He advocated that medicine should be concise and easy to learn, so most of the prescriptions he created have rigorous formulations and clear rules. In the medical context at that time, Qingqi Huatan Decoction was formulated for the core pathogenesis of phlegm-heat obstructing the lung. The word 'qingqi' in the name of the prescription implies equal emphasis on clearing heat and regulating qi, reflecting the profound theory in traditional Chinese medicine that treating phlegm should start with regulating qi, and when qi is smooth, phlegm will disappear. It is a benchmark prescription for treating heat-phlegm syndromes in the science of traditional Chinese medicine prescriptions.

From the perspective of the formulation logic and medical principles, Qingqi Huatan Decoction fully demonstrates the profound deconstruction of the relationship among phlegm, heat, and qi in traditional Chinese medicine. This prescription uses bitter-cold herbs such as bile arisaema and Trichosanthes kirilowii Maximowiczii as the main force to directly attack the heat-phlegm stagnated in the chest; at the same time, it is combined with Scutellaria baicalensis Georgi to clear the heat in the chest and diaphragm, and Pericarpium Citri Reticulatae Viride and Fructus Aurantii Immaturus to regulate qi and relieve fullness in the middle jiao. This compatibility can not only resolve the thick and sticky yellow phlegm, but also solve the chest distress and wheezing caused by phlegm pathogens obstructing the airway by regulating qi mechanism. Compared with the basic phlegm-resolving prescriptions, it not only treats the symptoms (resolving phlegm), but also attaches more importance to treating the root cause (clearing heat and regulating qi), providing a highly logical medication paradigm for the clinical treatment of febrile respiratory diseases.

2. Qing Qi Hua Tan Wan Classic Records

In the clinical inheritance of hundreds of years, Qingqi Huatan Decoction has been recognized as a golden prescription for treating heat-phlegm and cough due to its strong pertinence and definite efficacy. Whether it is the cough with yellow and thick phlegm, chest distress and shortness of breath described in ancient books, or diseases such as acute bronchitis, pneumonia, and bronchiectasis infection in modern medicine that show heat-phlegm signs, this prescription is the preferred basic prescription. In modern traditional Chinese medicine education and practice, Qingqi Huatan Decoction is not only a compulsory content in the textbook of the science of prescriptions, but also a powerful weapon for traditional Chinese medicine doctors to deal with the acute inflammation of the respiratory system. Its treatment principles of clearing heat, resolving phlegm, and descending qi still radiate the clinical wisdom across eras.

Detailed Explanation of Qingqi Huatan Decoction: A Classic Prescription for Clearing Heat and Resolving Phlegm, Relieving Cough and Wheezing - HJMEDICAL

2. Composition Introduction (King, Minister, Assistant, Guide)

1. King Drug - Arisaema Cum Bile

Bile arisaema has the effects of clearing heat and resolving phlegm, calming endogenous wind and relieving convulsion. It is cool in nature and can effectively clear the phlegm-heat pathogen in the body, and has good efficacy for symptoms such as cough and yellow and thick phlegm caused by phlegm-heat. In Qingqi Huatan Decoction, it plays a leading role in treating the main pathogenesis of internal binding of phlegm-heat, and is the core drug for clearing heat and resolving phlegm in the prescription.

2. Minister Drugs - Trichosanthes Seed, Scutellaria

Trichosanthes kirilowii Maximowiczii is bitter and cold, and can clear heat and resolve phlegm, relieve fullness in the chest and dissipate nodules. It can make the phlegm become thin and easy to expectorate, and cooperate with bile arisaema to enhance the power of clearing heat and resolving phlegm. Scutellaria baicalensis Georgi is bitter and cold, good at clearing heat and drying dampness, purging fire and detoxifying, and can further clear the pathogenic fire in the body, assisting bile arisaema to strengthen the effect of clearing heat. The two work together to assist the monarch drug in treating phlegm-heat diseases.

3. Assistant Drugs - Tangerine Peel, Apricot Seed, Immature Bitter Orange

Tangerine peel is pungent, bitter and warm in nature. It can regulate qi and strengthen the spleen, dry dampness and resolve phlegm. It can regulate qi movement and prevent the further generation of phlegm caused by unsmooth qi movement. Bitter almond is bitter, warm and moist, and can relieve cough and asthma, moisten the intestines and promote defecation, which helps to relieve cough and asthma symptoms and make phlegm descend and be discharged. Immature bitter orange can break qi, reduce accumulation, resolve phlegm and relieve stuffiness, enhance the effect of regulating qi and resolving phlegm, assist the monarch and minister herbs to better exert their effects, and at the same time prevent the herbs from being too cold and damaging the middle energizer.

4. Guide Drugs - Poria, Pinellia

Poria cocos is bland, sweet and neutral in nature. It can promote diuresis and percolate dampness, strengthen the spleen, and enable the pathogenic damp-phlegm in the body to be discharged through urine, playing an auxiliary role in resolving phlegm. Pinellia ternata can dry dampness and resolve phlegm, enhance the power of resolving phlegm, and at the same time be compatible with other herbs to harmonize various herbs, enabling the medicinal power of the whole formula to be better exerted and guiding the herbs to reach the affected area directly.

Qingqi Huatan Decoction: A detailed explanation of the classic formula for clearing heat and resolving phlegm, relieving cough and asthma HJMEDICAL">

III. Pathogenesis, Efficacy & Indications

1. Pathogenesis

Qingqi Huatan Decoction The pathogenesis it targets is mainly the internal binding of phlegm-heat. Due to exogenous heat pathogen or disharmony of zang-fu functions, phlegm-heat is mutually bound in the lungs. The lungs lose their function of clearing and purifying, and qi rebels upward, thus presenting symptoms such as cough, asthma, and phlegm. The internal obstruction of phlegm-heat can also lead to unsmooth qi movement, presenting manifestations such as chest distress and asthma.

2. Efficacy (Clear the Qi and Transform Phlegm Pill)

Its main efficacy is to clear heat and resolve phlegm. By clearing the phlegm-heat pathogen in the body, the function of the lungs is restored to normal, achieving the effects of relieving cough and asthma, regulating qi and resolving phlegm, and improving various discomfort symptoms caused by phlegm-heat.

3. Indications

Qingqi Huatan Decoction is mainly used to treat phlegm-heat cough. Symptoms include cough and asthma, yellow and thick phlegm, chest fullness and stuffiness, and even shortness of breath, nausea, restlessness, etc. Clinically, for various respiratory diseases belonging to the syndrome of internal binding of phlegm-heat, Qingqi Huatan Decoction can be used for treatment.

Qingqi Huatan Decoction: A detailed explanation of the classic formula for clearing heat and resolving phlegm, relieving cough and asthma HJMEDICAL">

IV. Analysis of Formula Principles

1. Clearing Heat & Resolving Phlegm

In the formula, bile arisaema, semen trichosanthis, and scutellaria baicalensis are the main drugs for clearing heat and resolving phlegm. Bile arisaema has a strong effect on clearing heat and resolving phlegm, targeting the core pathogenesis of phlegm-heat; semen trichosanthis frost moistens dryness and resolves phlegm, and scutellaria baicalensis clears heat and purges fire. The three work together to remove the phlegm-heat pathogen in the body, fundamentally solving the problem of qi stagnation transforming into fire and generating phlegm.

2. Regulating Qi & Resolving Phlegm for Discharge

Tangerine peel and immature bitter orange regulate qi and resolve phlegm, helping to regulate qi movement. When qi moves smoothly, phlegm will disappear. With smooth qi movement, phlegm is easily discharged from the body, and at the same time, it can also relieve symptoms such as chest distress caused by qi stagnation due to phlegm obstruction and unsmooth qi movement. Apricot kernel relieves cough and asthma, assisting in the discharge of phlegm, and enabling lung qi to be diffused smoothly.

3. Tonifying Spleen & Promoting Diuresis to Prevent Phlegm

Poria cocos strengthens the spleen, promotes diuresis and percolates dampness, and pinellia ternata dries dampness and resolves phlegm. The combination of the two can, on the one hand, prevent the endogenous generation of phlegm-dampness, and on the other hand, assist in eliminating phlegm through the functions of strengthening the spleen and promoting diuresis, so that the phlegm-dampness pathogen in the body can be completely removed, achieving the purpose of treating both the symptoms and the root cause.

Qingqi Huatan Decoction: A detailed explanation of the classic formula for clearing heat, resolving phlegm, relieving cough and asthma HJMEDICAL">

V. Comparison with Other Similar Formulas

1. Comparison with Minor Cinnabar Sedative Decoction

Xiaoxianxiong Decoction It is mainly composed of coptis chinensis, pinellia ternata, and fructus trichosanthis. Its功效 is to clear heat and resolve phlegm, and relieve chest stuffiness and dissipate binds. It is mainly used to treat the syndrome of minor chest bind due to the combination of phlegm-heat, manifested as stuffiness and fullness in the chest and epigastrium, pain on pressing, and yellow and thick phlegm. Compared with Qingqi Huatan Decoction, the phlegm-resolving power of Xiaoxianxiong Decoction is relatively weak, focusing on clearing heat and relieving binds, and is more suitable for the situation of mild combination of phlegm-heat; while Qingqi Huatan Decoction has a stronger power in clearing heat and resolving phlegm, and is applicable to more severe cases of internal binding of phlegm-heat and more complex symptoms such as cough with profuse phlegm.

2. Comparison with Gallbladder-Warming Decoction

Wendan Decoction It is composed of pinellia ternata, bamboo茹, fructus aurantii immaturus, tangerine peel, licorice root, and poria cocos. Its功效 is to regulate qi and resolve phlegm, harmonize the stomach and soothe the gallbladder, and is mainly used to treat the syndrome of disharmony between the gallbladder and stomach and internal disturbance of phlegm-heat. Wendan Decoction focuses on resolving phlegm and harmonizing the stomach, regulating gallbladder qi; while Qingqi Huatan Decoction mainly targets the phlegm-heat in the lung for clearing and resolving. There are differences in the main diseases treated and the key points of medication between the two. Wendan Decoction focuses on resolving phlegm and harmonizing the stomach, while Qingqi Huatan Decoction is more widely used in phlegm-heat diseases related to the gallbladder and stomach.

Qingqi Huatan Decoction: A Detailed Explanation of the Classic Prescription for Clearing Heat and Resolving Phlegm, Relieving Cough and Asthma HJMEDICAL">

VI. Clinical Applications and Indications

1. Respiratory System Diseases

Clinically, Qingqi Huatan Decoction is often used to treat various respiratory diseases. For example, in the acute exacerbation of chronic bronchitis, when patients have severe coughing, thick and yellow phlegm with a large amount, accompanied by symptoms such as wheezing and chest tightness, which belong to the syndrome of internal binding of phlegm-heat, the application of Qingqi Huatan Decoction can effectively relieve the symptoms. In addition, for diseases such as pneumonia and bronchiectasis complicated with infection, as long as the syndrome differentiation is phlegm-heat internal binding, Qingqi Huatan Decoction can play a good therapeutic role.

2. Digestive System Diseases

Some digestive system diseases can also be treated with Qingqi Huatan Decoction. For example, in patients with reflux esophagitis, if they have burning pain in the epigastric region, accompanied by symptoms such as bitter taste in the mouth, dryness, nausea, and vomiting, and the vomitus is thick and yellow phlegm, when the traditional Chinese medicine syndrome differentiation is phlegm-heat obstructing the interior and upward reversal of stomach qi, Qingqi Huatan Decoction can improve the symptoms by clearing heat and resolving phlegm, and descending adverse qi to harmonize the stomach.

3. Other Conditions

For some symptoms such as dizziness, head distension, restlessness and insomnia caused by phlegm-heat, if the syndrome differentiation is accurate, Qingqi Huatan Decoction can also be used with modifications. For example, for dizziness and vertigo caused by phlegm-heat disturbing the clear orifices, accompanied by bitter taste in the mouth and yellow and greasy tongue coating, Qingqi Huatan Decoction can clear away phlegm-heat, so as to calm the clear orifices and relieve the dizziness symptoms.

Qingqi Huatan Decoction: A Detailed Explanation of the Classic Prescription for Clearing Heat and Resolving Phlegm, Relieving Cough and Asthma HJMEDICAL">

VII. Modifications

1. Those with severe heat of amine

If the heat is relatively severe, gypsum and anemarrhena can be added to enhance the effect of clearing heat. Gypsum is pungent, sweet and extremely cold, which can clear heat and purge fire, relieve restlessness and quench thirst; anemarrhena clears heat and purges fire, nourishes yin and moistens dryness. When combined with the drugs in the original prescription, they can effectively enhance the effect of clearing heat, and relieve symptoms such as high fever and thirst caused by heat.

2. Those with excessive phlegm and shortness of breath

When there are obvious symptoms of excessive phlegm and shortness of breath, mulberry bark and lepidium can be added. Mulberry bark purges lung qi and relieves asthma, promotes diuresis and reduces swelling; lepidium purges lung qi, descends qi and dispels phlegm to relieve asthma, which can enhance the effects of relieving cough and asthma, resolving phlegm, making the phlegm discharge more smoothly and reducing the symptoms of shortness of breath.

3. Those with chest stuffiness and fullness

When the symptom of chest fullness and stuffiness is prominent, magnolia officinalis and Aucklandia lappa can be added to promote qi movement and relieve fullness. Magnolia officinalis is bitter, pungent and warm, which can dry dampness and resolve phlegm, descend qi and relieve fullness; Aucklandia lappa promotes qi movement to stop pain, invigorates the spleen and promotes digestion. The two can enhance the effect of regulating qi and relieving fullness in the chest, and relieve the discomfort of chest fullness and stuffiness.

Qingqi Huatan Decoction: A Detailed Explanation of the Classical Famous Prescription for Clearing Heat and Resolving Phlegm, Relieving Cough and Asthma HJMEDICAL">

VIII. Dosage (Traditional and Modern Concentrated Granules)

1. Traditional Method

The traditional usage is generally to decoct with water for oral administration. The commonly used dosage is: Arisaema cum Bile 6g, Trichosanthes kirilowii Seed 9g, Scutellaria baicalensis 9g, Tangerine Peel 6g, Apricot Kernel 9g, Immature Bitter Orange 6g, Poria cocos 9g, Pinellia ternata 9g. Add appropriate amount of water to the above-mentioned herbs, soak them and then decoct. Generally, bring to a boil over high heat and then turn to low heat for 20 - 30 minutes. Take the decoction, 1 dose per day, warm it and take it in 2 - 3 divided doses.

2. Modern Concentrated Granules

Taking modern concentrated granules is more convenient. Its dosage is generally converted according to the traditional dosage, and the dosage of each concentrated granule of the herbs is roughly equivalent to that of the traditional cut herbs. When using, just take each concentrated granule with appropriate amount of boiling water according to the instruction manual, 1 dose per day, taken in 2 - 3 divided doses. Modern concentrated granules maintain the efficacy of the traditional prescription, and are convenient to carry and take, suitable for the modern fast-paced lifestyle.

Qingqi Huatan Decoction: A Detailed Explanation of the Classical Famous Prescription for Clearing Heat and Resolving Phlegm, Relieving Cough and Asthma HJMEDICAL">

IX. Precautions and Taboos

1. Dietary Taboos

During the period of taking Qingqi Huatan Decoction, it is necessary to avoid eating foods that generate phlegm and assist fire, such as spicy, greasy, and sweet foods. Spicy foods such as chili peppers and Chinese prickly ash are likely to stimulate the throat and aggravate cough symptoms; greasy foods such as fried foods and fatty meats are not easy to digest, which will increase the burden on the spleen and stomach and lead to endogenous phlegm-dampness; sweet foods such as candies and cakes are likely to breed phlegm and affect the therapeutic effect.

2. Constitution Differences

Those with a deficiency-cold constitution should use Qingqi Huatan Decoction with caution. Because most of the herbs in the prescription are cold-natured, taking it may damage the yang qi of the spleen and stomach in those with a deficiency-cold constitution, resulting in discomfort symptoms such as abdominal pain and diarrhea. Pregnant women also need to be cautious when using it and should decide whether to use it according to the specific situation under the guidance of a doctor to avoid adverse effects on the fetus.

3. Disease Condition Observation

During the medication process, closely observe the changes in the condition. If the symptoms do not improve after taking the medicine for a period of time, or new symptoms appear, seek medical advice in time to adjust the treatment plan. At the same time, pay attention to the adverse reactions of the medicine. If discomfort such as nausea, vomiting, and rash appears, inform the doctor in time.

Qingqi Huatan Decoction: A Detailed Explanation of the Classical Famous Prescription for Clearing Heat and Resolving Phlegm, Relieving Cough and Asthma HJMEDICAL">

X. Modern Research Progress

1. Pharmacological Action Research

Modern research shows that various drugs in the Qingqi Huatan Decoction have different pharmacological effects. Arisaema cum Bile has anti-inflammatory, expectorant and other effects; Trichosanthes kirilowii Maxim. has the effects of calming the fetus, expectorant, antiasthmatic, etc.; Scutellaria baicalensis Georgi has antibacterial, antiviral, anti-inflammatory and other effects; Pericarpium Citri Reticulatae can promote the secretion of digestive juice and enhance gastrointestinal motility; Armeniaca vulgaris Lam. has the effects of calming the fetus and antiasthmatic; Aurantii Fructus Immaturus can enhance gastrointestinal motility; Poria cocos has diuretic, immune function enhancing and other effects; Pinellia ternata has the effects of calming the fetus, expectorant, stopping vomiting, etc. These pharmacological effects work together, which may be the material basis for the Qingqi Huatan Decoction to exert its clinical efficacy.

2. Clinical Efficacy Verification

Verified by a large number of clinical studies, the Qingqi Huatan Decoction has significant efficacy in treating various phlegm-heat syndromes. In the treatment of respiratory diseases, it can effectively relieve symptoms such as cough, expectoration, asthma, etc., and improve pulmonary function. For phlegm-heat syndromes in the digestive system, it can regulate gastrointestinal function and relieve discomfort symptoms in the epigastric region. In some clinical observations, the total effective rate of the Qingqi Huatan Decoction is relatively high, showing its advantages in clinical application.

3. Dosage Form Improvement Research

With the development of modern technology, the dosage form improvement of the Qingqi Huatan Decoction is constantly carried out. In addition to the modern concentrated granules mentioned above, some studies have tried to make it into dosage forms such as capsules and tablets to further improve the stability and convenience of taking the drug. At the same time, improvements have also been made in aspects such as the drug extraction process, aiming to better retain the effective components of the drug and improve the clinical efficacy.

Summary of Qing qi Hua tan Decoction

Qing Qi Hua Tan Tang, also known as Qing Qi Hua Tan Wan or the Clear the Qi and Transform Phlegm Pill, is a classical formula that clears heat and transforms phlegm while regulates qi. Derived from Er Chen Tang, it dries dampness, stops cough, and calms wheezing in cases of phlegm-heat obstructing the lungs.

Key herbs include huang qin (scutellaria), ban xia, chen pi, fu ling, zhi shi, gua lou (gua lou ren), dan nan xing, and xing ren, which work synergistically to resolve productive cough and phlegm accumulation.