I. Prescription Source & History

1. Recorded in Classic Works

Banxia Xiexin Decoction originated from Treatise on Febrile and Miscellaneous Diseases written by Zhang Zhongjing, a famous medical scientist in the late Eastern Han Dynasty. This work has been praised as the 'ancestor of prescription books' by later generations and has had a profound impact on the development of traditional Chinese medicine prescription science. Treatise on Febrile and Miscellaneous Diseases systematically expounded the theory of syndrome differentiation and treatment in traditional Chinese medicine, providing rich prescriptions and treatment methods for clinical treatment. As one of the classic prescriptions in it, Banxia Xiexin Decoction has been valued and applied by medical experts of all dynasties.

2. Historical Inheritance & Development

Since the publication of Treatise on Febrile and Miscellaneous Diseases, medical experts of all dynasties have conducted in-depth research and inheritance on Banxia Xiexin Decoction. In different historical periods, based on clinical practice and theoretical discussions, the application and understanding of the prescription have been continuously enriched and improved. For example, when Wang Shuhe in the Jin Dynasty sorted out Treatise on Febrile and Miscellaneous Diseases, he annotated and supplemented the prescription clauses, providing convenience for later generations to study and apply. As time goes by, later medical experts, on the basis of inheritance, further developed and innovated, making Banxia Xiexin Decoction more widely and flexibly applied in clinical practice.

3. Important Status & Significance

Banxia Xiexin Decoction occupies an important position in traditional Chinese medicine prescription science. It not only embodies Zhang Zhongjing's thought of syndrome differentiation and treatment but also provides an important example for treating spleen and stomach diseases in later generations. With its unique compatibility and exact curative effect, this prescription has become a classic one for treating the syndrome of stuffiness due to intermingled cold and heat, and is widely used in various clinical departments, having important guiding significance for the treatment of various diseases such as digestive system diseases and nervous system diseases.

II. Composition of Medicinal Flavors

1. Monarch Drug - Pinellia

Pinellia tuber is the dried tuber of Pinellia ternata (Thunb.) Breit. of the Araceae family. It is pungent in taste, warm in nature, and poisonous. It acts on the spleen, stomach, and lung meridians. It has the effects of drying dampness and resolving phlegm, descending adverse qi and stopping vomiting, and dissipating masses and relieving stuffiness. In Banxia Xiexin Decoction, Pinellia tuber is pungent and warm, can dissipate masses and relieve stuffiness, and is also good at descending adverse qi and stopping vomiting. It is the key herb for treating stuffiness, so it is the monarch herb. It can eliminate the pathogenic dampness-phlegm in the middle jiao, restore the normal ascending and descending functions of the spleen and stomach, and thus relieve symptoms such as stuffiness and vomiting.

2. Minister Drugs - Ginger, Coptis, Scutellaria

- Dry ginger: It is the dried rhizome of Zingiber officinale Rosc. of the Zingiberaceae family. It is pungent in taste, hot in nature. It acts on the spleen, stomach, kidney, heart, and lung meridians. It has the functions of warming the middle jiao to dispel cold, restoring yang and promoting blood circulation, and warming the lungs to resolve fluid-retention. Dry ginger is pungent and hot, can warm the middle jiao to dispel cold, assist Pinellia tuber to dissipate masses and relieve stuffiness, and enhance the efficacy of the monarch herb, so it is one of the minister herbs. It can warm the middle jiao spleen and stomach, disperse cold pathogens, restore the yang qi of the spleen and stomach, and promote the transportation and transformation functions of the spleen and stomach.

- Coptis root: It is the dried rhizome of Coptis chinensis Franch., Coptis deltoidea C. Y. Cheng & Hsiao or Coptis teeta Wall. The bitterness of Coptis chinensis Franch., Coptis deltoidea C. Y. Cheng & Hsiao, and Coptis teeta Wall. decreases in turn. It is bitter in taste, cold in nature. It acts on the heart, spleen, stomach, liver, gallbladder, and large intestine meridians. It has the effects of clearing heat and drying dampness, purging fire and detoxifying. Coptis root is bitter and cold, can clear heat and dry dampness. When combined with dry ginger, one cold and one hot, it can regulate cold and heat evenly and eliminate the intermingled cold and heat in the middle jiao. It is also one of the minister herbs. It can clear away the pathogenic dampness-heat in the middle jiao, prevent the upward disturbance of heat pathogens, and relieve symptoms such as stuffiness and restlessness.

- Scutellaria root: It is the dried root of Scutellaria baicalensis Georgi of the Lamiaceae family. It is bitter in taste, cold in nature. It acts on the lung, gallbladder, spleen, large intestine, and small intestine meridians. It has the functions of clearing heat and drying dampness, purging fire and detoxifying, stopping bleeding, and preventing miscarriage. Scutellaria root is bitter and cold, good at clearing heat in the upper jiao. When combined with coptis root, it enhances the power of clearing heat and drying dampness, and at the same time can assist coptis root to clear heat in the middle jiao. It is also one of the minister herbs. It can clear away the pathogenic fire in the upper jiao, relieve symptoms such as bitter taste in the mouth and dryness in the throat, and balance the cold and heat in the middle jiao.

3. Assistant Drugs - Ginseng, Jujube, Licorice

- Ginseng: It is the dried root and rhizome of Panax ginseng C. A. Mey. of the Araliaceae family. It is sweet and slightly bitter in taste, slightly warm in nature. It acts on the spleen, lung, heart, and kidney meridians. It has the effects of greatly tonifying primordial qi, restoring pulse and preventing collapse, invigorating the spleen and benefiting the lung, promoting the production of body fluid and nourishing blood, and calming the mind and improving intelligence. Ginseng is sweet and warm, can invigorate the spleen and replenish qi, strengthen the healthy qi and support the healthy function, assist the spleen and stomach in transportation and transformation, enhance the resistance of the body, and prevent the invasion of pathogenic factors. It is one of the adjuvant herbs. It can supplement the qi of the spleen and stomach, gradually restore the normal function of the spleen and stomach, promote the generation of qi and blood, and improve the weak state of the body.

- Chinese Date: The dried ripe fruit of Ziziphus jujuba Mill. of the family Rhamnaceae. It tastes sweet and is warm in nature. It belongs to the Spleen, Stomach, and Heart Meridians. It has the effects of replenishing qi in the middle jiao, nourishing blood and calming the mind. Chinese Date is sweet and warm, can invigorate the spleen and stomach, benefit qi and promote the production of body fluid. When combined with Ginseng, it enhances the power of invigorating the spleen and benefiting qi, and at the same time harmonizes various herbs, being one of the assistant herbs. It can nourish the spleen and stomach, supplement body fluid, nourish the spleen and stomach, and relieve the discomfort symptoms caused by spleen and stomach weakness.

- Prepared Licorice Root: The processed product of Licorice Root. It tastes sweet and is neutral in nature. It belongs to the Heart, Lung, Spleen, and Stomach Meridians. It has the effects of invigorating the spleen and replenishing qi, moistening the lung and relieving cough, clearing heat and detoxifying, and harmonizing various herbs. Prepared Licorice Root is sweet and neutral, can invigorate the spleen and regulate the middle, harmonize various herbs, and relieve the toxicity and potency of drugs, being one of the assistant herbs. It can coordinate the effects of various herbs in the prescription, make the herbs cooperate with each other, and exert the best therapeutic effect.

4. Messenger Herb - Licorice

Prepared Licorice Root not only plays the role of harmonizing various herbs as an assistant herb, but also serves as the guiding herb, leading various herbs directly to the site of disease. It can coordinate the properties of various herbs in the prescription, make the herbs synergistic with each other, jointly exert the therapeutic effect, make the medicinal power of the whole prescription more concentrated in the middle jiao of the spleen and stomach, so as to achieve the purpose of treating the syndrome of fullness and discomfort.

III. Pathogenesis, Efficacy and Indications

1. Analysis of Pathogenesis

The syndrome of fullness and discomfort treated by Banxia Xiexin Decoction is caused by weakness of the spleen and stomach, disorder of qi ascending and descending, and intermingling of cold and heat in the middle jiao. The spleen and stomach are the foundation of acquired constitution and the source of qi and blood production. If the spleen and stomach are weak and the transportation and transformation function fails, endogenous dampness will be generated and accumulate into phlegm. Phlegm and qi block the middle jiao, and the qi mechanism is not smooth, resulting in fullness and discomfort. At the same time, due to weakness of the spleen and stomach and insufficiency of yang qi, it is vulnerable to exogenous pathogenic factors or endogenous cold pathogens, which are intertwined with endogenous dampness and heat, forming a pattern of intermingling of cold and heat. At this time, simple clearing heat or dispersing cold is difficult to solve the problem, and it is necessary to use both cold and heat herbs and combine tonifying and purging to regulate the middle jiao.

2. Efficacy

Banxia Xiexin Decoction has the effects of regulating cold and heat in a balanced manner, dissipating fullness and resolving masses. In the prescription, Pinellia ternata and Dry Ginger are pungent and warm, dispersing cold; Coptis chinensis and Scutellaria baicalensis are bitter and cold, clearing heat. The four herbs are used together, with cold and heat herbs used simultaneously, to regulate the pathogenic factors of cold and heat in the middle jiao in a balanced manner; Ginseng, Chinese Date, and Prepared Licorice Root are sweet and warm, tonifying qi, invigorating the spleen and regulating the middle, to restore the transportation and transformation function of the spleen and stomach; Pinellia ternata can also descend adverse qi and stop vomiting, dissipate masses and relieve fullness. The herbs are combined, jointly achieving the effects of regulating cold and heat in a balanced manner, dissipating fullness and resolving masses.

3. Indications (Spleen, Stomach and Intestines)

Banxia Xiexin Decoction is mainly used to treat the syndrome of intermingling of cold and heat with fullness and discomfort. Clinically, symptoms such as fullness and discomfort in the epigastric region, anorexia, vomiting, borborygmus and diarrhea may be seen. This syndrome of fullness and discomfort is mostly caused by weakness of the spleen and stomach, exogenous pathogenic factors, or improper diet, resulting in blockage of the qi mechanism in the middle jiao and intermingling of cold and heat. Fullness and discomfort in the epigastric region is one of the main symptoms, manifested as a feeling of blockage and discomfort in the胃脘部, distended but not painful; anorexia is due to the disorder of the transportation and transformation function of the spleen and stomach and the failure of the stomach qi to descend; vomiting is caused by the upward reversal of stomach qi; borborygmus and diarrhea are manifestations of weakness of the spleen and stomach, failure of clear yang to ascend and turbid yin to descend, and disorder of intestinal conduction.

IV. Analysis of the Recipe of Banxia Xiexin Decoction

1. Combining Cold and Heat

In the prescription, Coptis chinensis and Scutellaria baicalensis are bitter and cold, can clear heat and dry dampness, purge fire and detoxify, clearing heat in the middle jiao; Dry Ginger is pungent and hot, can warm the middle and disperse cold, assist yang to transform qi, dispersing cold in the middle jiao. The combination of cold and heat herbs can not only clear away the dampness and heat pathogens in the middle jiao, but also disperse the cold pathogens in the middle jiao, making cold and heat balanced and restoring the normal physiological function of the middle jiao. This method of combining cold and heat herbs reflects the overall concept and syndrome differentiation and treatment thought of traditional Chinese medicine. For the pathogenesis of intermingling of cold and heat, the treatment principle of using opposite and complementary methods is adopted.

2. Combining Reinforcing and Reducing

Ginseng, Chinese Date, and Prepared Licorice Root are sweet and warm, tonifying qi, invigorating the spleen and regulating the middle, which is the tonifying method; Pinellia ternata, Dry Ginger, Coptis chinensis, and Scutellaria baicalensis are pungent for promoting qi movement and bitter for purging, regulating the qi mechanism, dissipating masses and relieving fullness, which is the purging method. The whole prescription combines tonifying and purging, strengthening the healthy qi and eliminating pathogenic factors. Weakness of the spleen and stomach is one of the important factors causing the syndrome of fullness and discomfort. Therefore, Ginseng, Chinese Date, and Prepared Licorice Root are used to invigorate the spleen and replenish qi, enhance the transportation and transformation function of the spleen and stomach, to strengthen the healthy qi and consolidate the root; at the same time, Pinellia ternata, Dry Ginger, Coptis chinensis, and Scutellaria baicalensis regulate the qi mechanism in the middle jiao, eliminate symptoms such as fullness, vomiting, and diarrhea, to expel pathogenic factors. The combination of tonifying and purging makes the function of the spleen and stomach gradually return to normal, pathogenic factors are removed, thus achieving the purpose of treating the syndrome of fullness and discomfort.

3. Pungent - opening and bitter - descending

Pinellia ternata and dried ginger are pungent and warm in nature, with the property of dispersing, capable of promoting the qi movement in the middle jiao and eliminating stuffiness and fullness; Coptis chinensis and Scutellaria baicalensis are bitter and cold in nature, with the property of descending and purging, capable of descending the stomach qi and removing stuffiness and stopping vomiting. The combination of pungent dispersing and bitter purging makes the qi movement in the middle jiao rise and fall normally again, and the stuffiness and fullness disappear by itself. The spleen and stomach are located in the middle jiao and are the pivotal points for the rise and fall of qi movement. If the qi movement in the middle jiao is blocked and the rise and fall is abnormal, symptoms such as stuffiness and fullness, vomiting will occur. Banxia Xiexin Decoction regulates the qi movement in the middle jiao through the combination of pungent dispersing and bitter purging drugs, enables the ascending and descending functions of the spleen and stomach to return to normal, and thus relieves various symptoms of the stuffiness syndrome.

4. Regulate the spleen and stomach

In the formula, ginseng, Chinese date, and roasted licorice replenish qi and strengthen the spleen. Pinellia ternata, dried ginger, Coptis chinensis, and Scutellaria baicalensis regulate the qi movement of the spleen and stomach. They act together on the spleen and stomach to restore the normal transportation and transformation functions of the spleen and stomach. The spleen and stomach are important organs for digestion and absorption in the human body. When the functions of the spleen and stomach are normal, qi and blood can be generated smoothly, and the body can be nourished. Banxia Xiexin Decoction targets the pathogenesis of weakness of the spleen and stomach with intermingled cold and heat syndromes. By regulating the spleen and stomach, it restores the ascending and descending functions and the transportation and transformation functions of the spleen and stomach to normal, thus achieving the purpose of treating diseases. At the same time, the compatibility of the drugs in the formula also pays attention to protecting the qi of the spleen and stomach and avoiding damage to the spleen and stomach caused by excessive medication.

V. Comparison with other similar formulas

1. Comparison with Zingiber - prepared Heart - regulating Decoction

- Composition differences: On the basis of Banxia Xiexin Decoction, Shengjiang Xiexin Decoction replaces dried ginger with fresh ginger, increases the dosage of fresh ginger, and at the same time reduces the dosage of Scutellaria baicalensis and Coptis chinensis. Fresh ginger has the effects of inducing sweating to dispel cold, warming the middle-jiao to arrest vomiting, resolving phlegm and relieving cough, and detoxifying fish and crab poisons. Its nature is milder than dried ginger and has a dispersing property.

- Focus on efficacy: Based on the functions of Pinellia Decoction for Purging Heart-fire in regulating cold and heat, eliminating fullness and resolving masses, Zingiber Decoction for Purging Heart-fire focuses more on harmonizing the stomach to eliminate fullness and dispersing water qi. With the addition of fresh ginger, the function of warming the stomach and dispersing water is enhanced, which has good curative effects on symptoms such as stuffiness and hardness in the epigastric region, belching with the smell of food, gurgling sound in the abdomen, diarrhea, etc., caused by weakness of the spleen and stomach, mutual binding of water and heat, accompanied by stagnation of food and retention of water qi.

- Applicable symptoms: Zingiber Recens Decoction for Purging Heart-fire is applicable to the syndrome of stuffiness and fullness accompanied by internal retention of fluid-retention qi and indigestion of food stagnation; while Pinelliae Decoction for Purging Heart Fire It is mainly applicable to the syndrome of pi (abdominal fullness and discomfort) with the complexity of cold and heat syndromes.

2. Comparison with Licorice - prepared Heart - regulating Decoction

- Composition changes: On the basis of Banxia Xiexin Decoction, the dosage of roasted licorice in Gancao Xiexin Decoction is increased. The dosage of roasted licorice is doubled compared with Banxia Xiexin Decoction. Roasted licorice has the effects of tonifying the spleen and replenishing qi, moistening the lungs and relieving cough, clearing heat and detoxifying, and coordinating various herbs.

- Efficacy characteristics: Based on Pinellia Decoction for Purging the Heart, Licorice Decoction for Purging the Heart focuses more on strengthening the spleen and stomach, replenishing qi and restoring the pulse. Due to the increased dosage of roasted licorice, it enhances the effect of replenishing qi and strengthening the spleen, and is more applicable to symptoms such as severe weakness of the spleen and stomach, severe fullness and diarrhea, undigested grains, retching, restlessness and uneasiness due to vexation.

- Clinical application: Gancao Xiexin Decoction is mostly used to treat the syndrome of stuffiness and fullness due to weakness of the spleen and stomach, deficiency of middle qi, and intermingling of cold and heat, and the symptoms are relatively... Pinelliae Decoction for Purging Heart Fire More severe; Banxia Xiexin Decoction is applicable to the general syndrome of pi (fullness and discomfort) with intermingled cold and heat.

3. Key points for differentiating the three formulas

All three prescriptions are based on Pinelliae Rhizoma, Zingiberis Rhizoma Recens, Scutellariae Radix, Coptidis Rhizoma, Ginseng Radix, Jujubae Fructus, and Glycyrrhizae Radix Praeparata, and all have the effects of regulating cold and heat, resolving masses and relieving fullness, and are mainly used for treating the syndrome of stagnation due to the intermingling of cold and heat. However, the three prescriptions differ in the composition of drugs, dosage ratio, and emphasis on efficacy. Ginger Xiexin Decoction is more inclined to harmonize the stomach and relieve fullness, and disperse water qi; Licorice Xiexin Decoction is more inclined to tonify the spleen and stomach, benefit qi and restore the pulse; Banxia Xiexin Decoction is the basic prescription for treating the syndrome of stagnation due to the intermingling of cold and heat and is applicable to general situations. In clinical application, the specific symptoms, signs, and the severity and urgency of the condition of the patient should be accurately differentiated, and the prescription should be reasonably selected.

VI. Clinical applications and indications

1. Digestive system diseases

- Chronic gastritis: Banxia Xiexin Decoction can be used to treat chronic gastritis with the syndrome of intermingled cold and heat. Patients often present with symptoms such as fullness and discomfort in the epigastric region, pain, nausea and vomiting, bitter taste in the mouth and dry mouth, loss of appetite, loose stools or dry stools. The herbs in the formula can regulate the functions of the spleen and stomach, eliminate the intermingled cold and heat, relieve the discomfort symptoms in the epigastric region, and promote the repair of gastric mucosa.

- Gastric ulcer: For patients with gastric ulcer accompanied by symptoms of intermingled cold and heat, Banxia Xiexin Decoction also has a certain therapeutic effect. The intermingled cold and heat can cause damage to the gastric collaterals, resulting in symptoms such as stomach pain, acid reflux, and belching. This formula can regulate the cold and heat, eliminate stagnation and dissipate nodules, improve the functional state of the stomach, and promote the healing of ulcers.

- Indigestion: When there is indigestion accompanied by symptoms such as fullness and discomfort in the epigastrium, loss of appetite, nausea and vomiting, borborygmus and diarrhea, and it is differentiated as the syndrome of intermingled cold and heat, Banxia Xiexin Decoction can regulate the transportation and transformation functions of the spleen and stomach, promote digestion and absorption, and relieve the symptoms of indigestion.

2. Nervous System Diseases

- Insomnia: Some insomnia patients belong to the syndrome of intermingled cold and heat, manifested as difficulty in falling asleep, having many dreams and easy to wake up, restlessness, bitter taste in the mouth, discomfort in the stomach cavity, etc. Banxia Xiexin Decoction can improve sleep quality by regulating the middle jiao (spleen and stomach), balancing cold and heat, and calming the mind. The spleen and stomach are the foundation of acquired constitution and the source of qi and blood production. Dysfunction of the spleen and stomach can affect the mind and lead to insomnia. This formula indirectly plays the role of calming the mind and helping sleep by regulating the spleen and stomach.

- Anxiety disorder: When patients with anxiety disorder present symptoms such as fullness and stuffiness in the stomach cavity, anxiety, restlessness, bitter taste in the mouth and dryness in the throat, and are differentiated as having the syndrome of intermingled cold and heat, Banxia Xiexin Decoction can be applied. The drugs in the formula can regulate the qi movement and zang-fu functions of the human body, relieve anxiety, and alleviate the accompanying somatic symptoms.

3. Other Diseases

- Oral ulcer: In traditional Chinese medicine syndrome differentiation for oral ulcer, if there are manifestations of intermingled cold and heat, such as the ulcer surface being red, swollen and painful, the surrounding mucosa being red, accompanied by bitter taste in the mouth, dryness in the throat, discomfort in the stomach cavity, dry or loose stools, etc., Banxia Xiexin Decoction can promote the healing of oral ulcers by regulating the middle jiao and eliminating the image of intermingled cold and heat.

- Chronic enteritis: When patients with chronic enteritis have abdominal pain, diarrhea, mucus stools, accompanied by symptoms of intermingled cold and heat such as fullness and stuffiness in the stomach cavity, bitter taste in the mouth, loss of appetite, etc., Banxia Xiexin Decoction can regulate intestinal function, relieve intestinal inflammation, and improve symptoms such as diarrhea.

VII. Modified Banxia Xiexin Decoction

1. Concurrent Exterior Syndrome

If the patient also presents exterior syndrome symptoms such as aversion to cold, fever, headache, etc., on the basis of Banxia Xiexin Decoction, exterior-resolving drugs such as Cinnamomum cassia and Saposhnikovia divaricata can be appropriately added. Cinnamomum cassia has the effects of inducing sweating to relieve the exterior syndrome, warming the channels to promote qi movement, and assisting yang to transform qi; Saposhnikovia divaricata has the functions of expelling wind to relieve the exterior syndrome, eliminating dampness to relieve pain, and stopping convulsions. Adding these drugs can take into account the exterior syndrome while treating the pi syndrome, relieve the exterior pathogen, and prevent the interior invasion of the exterior pathogen from aggravating the pi syndrome.

2. Food Retention

If the patient is accompanied by food retention stagnation, presenting symptoms such as abdominal distension, belching with acid regurgitation, nausea and vomiting, etc., drugs for promoting digestion and guiding out stagnation such as Crataegus pinnatifida, Medicago sativa, Hordeum vulgare, and Raphanus sativus can be added. Crataegus pinnatifida can promote digestion and remove food stagnation, promote qi movement and disperse stasis; Medicago sativa can promote digestion and harmonize the stomach; Hordeum vulgare can promote digestion and strengthen the stomach, stop lactation and relieve distension; Raphanus sativus can promote digestion and relieve distension, lower qi and resolve phlegm. These drugs can enhance the effect of the formula in promoting digestion and removing food stagnation, eliminate the impact of food retention on the spleen and stomach, and promote the recovery of spleen and stomach functions.

3. Excessive Dampness

If the patient has a more severe damp pathogen, presenting symptoms such as heaviness of the limbs, thick and greasy tongue coating, sticky and loose stools, etc., drugs for drying dampness and promoting diuresis such as Atractylodes lancea, Magnolia officinalis, Poria cocos, and Alisma orientale can be added. Atractylodes lancea can dry dampness and strengthen the spleen, dispel wind and disperse cold; Magnolia officinalis can dry dampness and reduce phlegm, lower qi and relieve fullness; Poria cocos can promote diuresis and percolate dampness, strengthen the spleen, and calm the mind; Alisma orientale can promote urination and clear away damp-heat. Adding these drugs can enhance the effect of the formula in drying dampness and promoting diuresis, and improve the symptoms of internal obstruction of damp pathogen.

4. Liver Depression

If the patient has emotional discomfort, liver qi stagnation, presenting symptoms such as distending pain in the hypochondrium, chest distress, frequent sighing, etc., drugs for soothing the liver and regulating qi such as Bupleurum chinense, Aurantii Fructus Immaturus, and Cyperus rotundus can be added. Bupleurum chinense can harmonize the exterior and interior, soothe the liver and relieve depression, raise yang and lift the sinking; Aurantii Fructus Immaturus can regulate qi and relieve fullness, promote qi movement and relieve distension; Cyperus rotundus can soothe the liver and relieve depression, regulate qi and relieve fullness, regulate menstruation and relieve pain. These drugs can regulate qi movement, relieve the symptoms of liver qi stagnation, make the qi movement smooth, and be beneficial to the recovery of spleen and stomach functions.

VIII. Dosage (Traditional and Modern Concentrated Granules)

1. Traditional Methods

The traditional usage of Banxia Xiexin Decoction is to decoct the medicinal slices by adding water. Generally, Pinelliae Rhizoma (processed) 12 g, Scutellariae Radix 9 g, Zingiberis Rhizoma Recens 9 g, Ginseng Radix 9 g, Coptidis Rhizoma 3 g, Jujubae Fructus 4 pieces, Glycyrrhizae Radix Preparata 9 g. First, soak the drugs for about 30 minutes, then bring to a boil over high heat, and then switch to low heat and decoct for about 30 minutes. Take about 200 ml of the decoction and take it warm in two doses, one dose per day.

2. Modern Concentrated Granules

With the development of modern pharmaceutical technology, concentrated granules of traditional Chinese medicine have emerged. When using concentrated granules of traditional Chinese medicine, the dosage is different from that of traditional slices. Generally, Pinelliae Rhizoma (processed) concentrated granules 12 g, Scutellariae Radix concentrated granules 9 g, Zingiberis Rhizoma Recens concentrated granules 9 g, Ginseng Radix concentrated granules 9 g, Coptidis Rhizoma concentrated granules 3 g, Jujubae Fructus concentrated granules equivalent to the amount of 4 pieces of Jujubae Fructus, Glycyrrhizae Radix Preparata concentrated granules 9 g. The usage method is to take each kind of concentrated granules with appropriate boiling water and take it in two doses, one dose per day.

3. Precautions

Whether using the traditional decoction method or modern concentrated granules, attention should be paid to the heat and time of decocting to ensure that the active ingredients of the drugs are fully decocted. At the same time, pay attention to the appropriate temperature when taking the medicine to avoid overheating or overcooling stimulating the gastrointestinal tract. When using modern concentrated granules, take them correctly according to the requirements of the instructions to avoid affecting the drug efficacy due to improper taking method.

IX. Precautions and Taboos

1. Dietary Taboos

During the period of taking Banxia Xiexin Decoction, it is necessary to avoid eating raw, cold, greasy, spicy and other stimulating foods. Raw and cold foods are likely to damage the yang qi of the spleen and stomach. Greasy foods are not easy to digest and will increase the burden on the spleen and stomach. Spicy foods are likely to generate heat and assist fire, which is not conducive to the treatment of the syndrome of intermingled cold and heat. The diet should be kept light and easy to digest, which is helpful for the absorption of the drug and the recovery of the disease condition.

2. Special Populations

Pregnant women should use Banxia Xiexin Decoction with caution. Since Pinelliae Rhizoma in the formula is toxic, although it is used after compatibility, in order to ensure the safety of the fetus, pregnant women should use it carefully under the guidance of a doctor. In addition, those with obvious deficiency-cold of the spleen and stomach and yang deficiency should reduce the dosage of bitter-cold drugs such as Coptidis Rhizoma and Scutellariae Radix, or adjust the compatibility of the formula under the guidance of a doctor to avoid damaging yang qi.

3. Drug Interactions

When using Banxia Xiexin Decoction, attention should be paid to avoiding using it simultaneously with certain drugs that may interact with each other. For example, when used in combination with other formulas or drugs containing Pinelliae Rhizoma, pay attention to the dosage of Pinelliae Rhizoma to avoid overdose and poisoning. At the same time, when used in combination with other drugs with similar effects or opposite effects, consult a doctor or pharmacist to ensure the safety and effectiveness of medication.

4. Condition Observation

During the process of taking Banxia Xiexin Decoction, closely observe the changes in the disease condition. If the symptoms are not significantly relieved or new symptoms appear, seek medical attention in time and adjust the treatment plan. At the same time, take the medicine on time according to the doctor's instructions, and do not increase or decrease the dosage or stop taking the medicine by yourself to avoid affecting the treatment effect.

X. Modern Research Progress

1. Pharmacological Research

- Regulating gastrointestinal function: Modern research shows that Banxia Xiexin Decoction has the effect of regulating gastrointestinal motility. It can promote gastrointestinal peristalsis, enhance gastrointestinal emptying ability, and improve gastrointestinal digestion and absorption function, and has a certain therapeutic effect on symptoms such as fullness, vomiting, and diarrhea caused by gastrointestinal dysfunction. Its mechanism of action may be related to regulating the level of gastrointestinal hormones and improving gastrointestinal mucosal blood circulation, etc.

- Anti-inflammatory and antibacterial: Herbs such as Coptis chinensis and Scutellaria baicalensis in the formula have anti-inflammatory and antibacterial effects. They can inhibit the release of inflammatory mediators, reduce the inflammatory response, and have a certain therapeutic effect on gastrointestinal inflammation. At the same time, they also have a certain inhibitory effect on some gastrointestinal diseases caused by bacterial infections.

- Regulating immune function: Banxia Xiexin Decoction can regulate the immune function of the body. It can enhance the body's immunity, improve the body's resistance to pathogens, and also has a certain regulatory effect on some diseases with hyperactive or hypoactive immune functions, helping to maintain the body's immune balance.

2. Clinical Research Application

- Application in digestive system diseases: Modern clinical studies have further confirmed the effectiveness of Banxia Xiexin Decoction in treating digestive system diseases such as chronic gastritis, gastric ulcer, and dyspepsia. Through clinical observation and experimental research, it has been found that this formula can improve the symptoms of patients, promote the repair of gastric mucosa, and increase the eradication rate of Helicobacter pylori, etc.

- Exploration in other diseases: In addition to digestive system diseases, Banxia Xiexin Decoction also has certain clinical research applications in nervous system diseases, respiratory system diseases, etc. For example, in the treatment of nervous system diseases such as insomnia and anxiety disorders, it has been found that this formula can improve the sleep quality and emotional state of patients; in the adjuvant treatment of some respiratory infectious diseases, it also shows certain curative effects.

3. Dosage Form Improvement Research

With the development of modern technology, research on the dosage form improvement of Banxia Xiexin Decoction has also been carried out. In addition to traditional decoctions and modern concentrated granules, new dosage forms such as capsules and tablets have been developed. These new dosage forms have the advantages of convenient administration and easy storage, providing more choices for clinical application. At the same time, through research on dosage form improvement, it also helps to improve the stability and bioavailability of drugs, and further exert the therapeutic effect of the formula.

4. Future Research Directions

In the future, the research on Banxia Xiexin Decoction can develop in a more in-depth and extensive direction. For example, further in-depth study of its mechanism of action, revealing the essence of the formula's treatment of diseases from the levels of molecular biology and cell biology; carrying out large-scale clinical studies to verify its efficacy and safety in different diseases; exploring new dosage forms and administration routes to improve the therapeutic effect of drugs and patient compliance; strengthening cross-disciplinary research with other disciplines to provide more theoretical and practical bases for the development of traditional Chinese medicine.

In summary, Banxia Xiexin Decoction, as a classic formula in traditional Chinese medicine, has rich connotations and extensive application values. Through the introduction of its formula source and history, composition of herbs, pathogenesis and efficacy, analysis of formula meaning, clinical application, etc., and the combination with modern research progress, it is hoped that more people can understand and recognize this important formula, contributing to the inheritance and development of traditional Chinese medicine. At the same time, in clinical application, the principle of syndrome differentiation and treatment in traditional Chinese medicine should be followed, and Banxia Xiexin Decoction should be rationally used to achieve the best therapeutic effect.

Summary

Banxia Xiexin Decoction (Systematic Differentiation of Warm Diseases, A Guide to Clinical Practice in Chinese Medicine) is a representative formula for treating fullness and discomfort in the epigastric region and the syndrome of blockage. It has the functions of pungent dispersing and bitter descending, using cold and heat together, and combining tonification and purgation. It is applicable to the syndrome of Banxia Xiexin Decoction caused by weakness of the spleen and stomach, deficiency of middle qi, disorder of ascending and descending, and intermingling of cold and heat. Patients often have fullness and discomfort in the epigastric region, greasy and slightly yellowish tongue coating or greasy tongue coating, vomiting, and diarrhea. In the formula, Pinellia ternata is the monarch herb, Scutellaria baicalensis and Coptis chinensis are the ministerial herbs, and are combined with dried ginger, ginseng, roasted Glycyrrhiza uralensis, and Chinese date, etc. Clinically, it is often modified into Shengjiang Xiexin Decoction, Gancao Xiexin Decoction, and Huanglian Decoction, which are applicable to acute and chronic gastroenteritis, chronic colitis, chronic hepatitis and other spleen and stomach diseases, gastrointestinal diseases, and have good curative effects on the disorder of ascending and descending in the middle jiao.