I. Prescription Source & History

1. Classic Source of Modified Xiaoyao San

Jia Wei Xiao Yao San (加味逍遥散), known in English as Augmented Free and Easy Powder, is a classical modification of Xiao Yao San with the addition of Mu Dan Pi and Zhi Zi to clear Heat. It is particularly indicated for Liver Qi stagnation with Blood deficiency turning into Heat, presenting with emotional symptoms such as irritability, depression, anxiety, insomnia, and PMS with Heat signs (irritability, breast distension, acne), as well as hypochondriac pain and red tongue. In modern clinical practice, Jia Wei Xiao Yao San is widely used for stress-related emotional disorders with Heat signs, premenstrual syndrome with irritability, and any condition where Liver Qi stagnation has generated Heat. By combining Liver soothing, Blood nourishment, Spleen support, and Heat clearing, it effectively addresses both the stagnation and the Heat that often accompanies it in clinical practice.

Jia Wei Xiao Yao San is from the Taiping Huimin Heji Jufang in the Song Dynasty and holds an important position in ancient prescription science. This work is the first official pharmacopoeia of ready-made medicines compiled by the government in China, collecting a large number of effective prescriptions and having a profound impact on the development of later prescriptions. 

2. Historical Evolution

Since its birth in the Song Dynasty, Jia Wei Xiao Yao San has been continuously applied and improved in the clinical practice of physicians in successive dynasties. With the changes of the times, physicians adjusted and optimized the drug composition, dosage ratio, etc. of the formula according to different clinical needs and in-depth understanding of diseases. For example, on the basis of inheritance, physicians in the Ming Dynasty might have made some fine-tuning to the formula according to the characteristics of prevalent diseases at that time, making it more practical in clinical application. This historical evolution reflects the characteristics of the development of traditional Chinese medicine formula science with the times and continuous progress, and also reflects the continuous exploration and progress of traditional Chinese medicine in the treatment of diseases in long-term practice.

II. Introduction of Ingredients (Ruler, Minister, Assistant, Guide)

1. Ruler Herb - Bupleurum

Bupleurum is the sovereign drug in Modified Rambling Powder. It is bitter, pungent, slightly cold in nature, and belongs to the liver and gallbladder meridians. It has the effects of reconciling the exterior and interior, soothing the liver and relieving depression, and lifting yang to relieve sinking. In the formula, Bupleurum can regulate the liver qi, making the liver qi smooth and unobstructed, so as not to stagnate. Just as stated in Compendium of Materia Medica: 'Bupleurum is the main drug for the foot少阳 and jueyin meridians. There are five types of overwork, and the diseases are in the five zang-organs. If the overwork is in the liver and gallbladder, and there are alternating chills and fevers, Bupleurum is the essential drug for the hand and foot jueyin and shaoyang meridians.' Through its unique pharmacological effects, Bupleurum lays the foundation for soothing the liver and relieving depression in the whole formula, guiding the medicinal power directly to the diseased site, and playing a major therapeutic role in targeting the key pathogenesis of liver qi stagnation.

2. Minister Herbs - Angelica, White Peony

Angelica sinensis is sweet, pungent, and warm in nature, and enters the liver, heart, and spleen meridians. It has the functions of enriching blood and promoting blood circulation, regulating menstruation and relieving pain, and moistening the intestines and relaxing bowel movements. White peony root is bitter, sour, and slightly cold in nature, and enters the liver and spleen meridians. It can nourish blood and regulate menstruation, astringe yin and stop sweating, soothe the liver and relieve pain, and suppress the hyperactive liver yang. The two herbs together serve as assistant herbs, assisting  Bupleurum soothes the liver qi. Bupleurum soothes the liver qi The effect of relieving depression.

3. Assistant Herbs - Atractylodes, Poria, Licorice

Atractylodes (Baizhu): Bitter, sweet, warm; enters spleen/stomach meridians. Strengthens spleen, boosts qi, dries dampness, promotes urination, stops sweating, and calms the fetus.Poria (Fuling): Sweet, bland, neutral; enters heart/lung/spleen/kidney meridians. Promotes urination, leaches dampness, strengthens spleen, and calms the mind.Licorice (Gancao): Sweet, neutral; enters heart/lung/spleen/stomach meridians. Tonifies spleen, boosts qi, moistens lungs, stops coughing, clears heat, detoxifies, and harmonizes the herbs.These three serve as assistant (zuo) herbs to strengthen the spleen, boost qi, bank up earth, and restrain wood.The spleen and stomach are the foundation of post-natal constitution and the source of qi and blood. Liver stagnation can easily invade the spleen, causing digestive dysfunction. Baizhu and Fuling strengthen the spleen and remove dampness to restore transport functions, ensuring qi/blood generation and preventing liver invasion. Gancao harmonizes the formula, coordinating the herbs for a balanced and synergistic effect.

4. Guide Herbs - Mint, Ginger

Mentha haplocalyx Briq. is pungent and cool in nature, attributing to the lung and liver meridians, capable of dispersing wind-heat, clearing the head and eyes, relieving sore throat and promoting eruption, soothing the liver and regulating qi. Ginger is pungent and slightly warm in nature, attributing to the lung, spleen and stomach meridians, which can relieve exterior syndrome and dispel cold, warm the middle-jiao to arrest vomiting, warm the lung to arrest cough. As adjuvant drugs, they assist Bupleuri Radix in dispersing the heat of stagnant liver qi. Mentha haplocalyx Briq. is light and rises upward, dispersing the stagnant heat in the liver meridian. Its fragrance can lead all the drugs into the liver meridian. Ginger can warm the stomach and regulate the middle-jiao, assist the spleen and stomach in transportation and transformation, and can also harmonize the properties of drugs, making the properties of the whole prescription mild, not overly cold or warm, so as to better exert the effects of soothing the liver and relieving depression, clearing heat and nourishing blood.

III. Pathogenesis, Effects and Indications

1. Pathogenesis

The pathogenesis targeted by Modified Rambling Powder is mainly liver depression with blood deficiency and spleen weakness. Emotional discomfort leads to the liver losing its dredging function, qi mechanism stagnation, and over time, fire transforms, burning and injuring yin blood, resulting in liver depression with blood deficiency. Liver qi stagnation invades the spleen horizontally, causing the spleen qi to be weak and the transportation and transformation to be abnormal. This pathological state of mutual influence among liver depression, blood deficiency, and spleen weakness runs through the occurrence and development of various diseases.

2. Effects

Based on the above pathogenesis, Modified Xiaoyao Powder has the effects of soothing the liver and strengthening the spleen, nourishing blood and clearing heat. Through Bupleurum soothes the liver qi To relieve depression, Angelica sinensis and White Peony nourish the blood and soothe the liver. Atractylodes macrocephala, Poria cocos and Licorice invigorate the spleen and replenish qi. Mentha haplocalyx and Ginger disperse stagnant heat. The whole formula acts together to achieve the purpose of soothing the liver and regulating qi, harmonizing the liver and spleen, nourishing the blood and clearing heat, so as to harmonize qi and blood in the human body and restore the normal functions of zang-fu organs.

3. Indications

Modified Bupleurum and Rambling Powder is mainly used to treat the syndrome of liver depression with blood deficiency and spleen weakness. Common symptoms include pain in both flanks, headache and dizziness, dry mouth and throat, fatigue and poor appetite, or alternating chills and fevers, or irregular menstruation, breast distending pain, a taut and weak pulse, etc. These symptoms are relatively common in modern clinical practice and are involved in a variety of physical and mental diseases. For example, in情志相关疾病（可替换为emotion-related diseases）, for emotional depression and anxiety caused by liver qi stagnation, accompanied by symptoms such as loss of appetite and poor sleep, Modified Bupleurum and Rambling Powder can be applied for conditioning; in gynecological diseases, diseases related to liver depression and blood deficiency such as irregular menstruation and breast distending pain are also often treated with this formula.

IV. Analysis of Jiawei Xiaoyao San

1. Soothing Liver and Nourishing Blood

Bupleurum soothes the liver Relieving depression is the core of the prescription, leading to smooth qi movement. Angelica sinensis and Paeonia lactiflora nourish the liver and soothe the liver, replenishing liver blood to nourish the liver body and prevent the liver qi from acting recklessly. The liver is in charge of dredging and regulating qi and storing blood. Qi and blood depend on each other and interact with each other. Using the methods of soothing the liver and nourishing blood can not only smooth the liver qi but also nourish the liver body, restoring the normal physiological functions of the liver and fundamentally solving the pathogenesis of liver depression and blood deficiency.

2. Strengthening Spleen to Aid Liver

Atractylodes macrocephala, Poria cocos, and Glycyrrhiza uralensis invigorate the spleen and replenish qi, strengthening the earth to restrict the wood. The liver wood restricts the spleen earth, and liver depression is likely to attack the spleen. By invigorating the spleen, enhancing the transportation and transformation functions of the spleen and stomach, qi and blood can be generated abundantly. When the spleen qi is healthy and transported, the liver wood will not invade due to deficiency, thus maintaining the coordinated balance between the liver and the spleen. This reflects the theory of the relationship between zang-fu organs in the holistic concept of traditional Chinese medicine. By adjusting the functions of the spleen and stomach, the liver function is indirectly regulated to achieve the purpose of treating diseases.

3. Clearing Heat to Remove Restlessness

Mentha haplocalyx and Zingiber officinale disperse the heat of liver depression, preventing excessive transformation of liver depression into fire. Symptoms such as bitter taste in the mouth, dry throat, headache, and dizziness may occur when liver depression transforms into fire. Clearing heat helps relieve these heat symptoms, eliminate discomfort such as restlessness and irritability caused by the transformation of liver depression into fire, and restore the body to a peaceful state.

V. Comparison with Other Similar Formulas

1. Xiao Yao San

Xiaoyao Powder 是 Modified Xiaoyao Powder The basic prescription, which comes from Taiping Huimin Hejiju Fang. The drug compositions of the two are similar, but Modified Xiaoyao Powder adds Cortex Moutan and Fructus Gardeniae on the basis of Xiaoyao Powder, enhancing the effect of clearing heat and cooling blood. Xiaoyao Powder mainly focuses on soothing the liver, strengthening the spleen, and nourishing blood, and is applicable to the situation where liver depression, blood deficiency, and spleen weakness are relatively mild and have not transformed into heat; while Modified Xiaoyao Powder is more suitable for the condition of liver depression, blood deficiency, spleen weakness with symptoms of stagnant heat.

2. Bupleurum soothes the liver 散

Bupleurum soothes the liver 散 It is from Jingyue Quanshu and mainly soothes the liver and regulates qi. Its drug components include Bupleuri Radix, Citri Reticulatae Pericarpium, Chuanxiong Rhizoma, Cyperi Rotundi Rhizoma, Aurantii Fructus Immaturus, Paeoniae Radix Alba, and Glycyrrhizae Radix. And Modified Rambling Powder Compared with Bupleurum soothes the liver qi The dispersing formula focuses on soothing the liver and regulating qi, promoting qi movement to relieve pain. It is mainly used for more severe liver qi stagnation, with the main symptom of distending pain in the hypochondrium. Its ability to nourish blood and strengthen the spleen is relatively weak, and it has no effect of clearing heat. Modified Bupleurum and Rambling Powder, while soothe the liver, also takes into account nourishing blood, strengthening the spleen and clearing heat, and has a wider range of applications.

VI. Clinical Applications and Indications

1. Emotional Disorders

In modern society, diseases caused by emotional factors are increasing. Modified Xiaoyao Powder can be used to treat depression, anxiety and other diseases caused by liver qi stagnation. Patients often show symptoms such as low mood, anxiety, insomnia, loss of appetite, etc. By soothing the liver and relieving depression, nourishing blood and strengthening the spleen, it can regulate the emotional state of patients, improve sleep and appetite, and relieve depression and anxiety.

2. Gynecological Diseases

For gynecological diseases such as irregular menstruation, dysmenorrhea, premenstrual syndrome in women, if differentiated as the syndrome of liver depression, blood deficiency and spleen weakness, Modified Rambling Powder is a commonly used prescription. Irregular menstruation is manifested as menstrual cycle disorders and abnormal menstrual volume; dysmenorrhea mostly presents with lower abdominal pain during or before menstruation; premenstrual syndrome is accompanied by symptoms such as breast distension pain and mood swings. Modified Rambling Powder improves gynecological symptoms by regulating the functions of the liver and spleen and adjusting qi and blood.

3. Digestive System Diseases

Liver qi stagnation is likely to affect the transportation and transformation functions of the spleen and stomach. Modified Xiaoyao Powder can be used to treat digestive system diseases such as chronic gastritis and dyspepsia. Patients may present with symptoms such as distending pain in the epigastrium, belching with acid regurgitation, loss of appetite, abdominal distension, and loose stools. In the formula, Bupleurum and White Peony soothe the liver and regulate qi, while Atractylodes Macrocephala, Poria, and Licorice invigorate the spleen and harmonize the stomach, helping to improve the functions of the digestive system and relieve discomfort symptoms.

VII. Modifications

1. Severe Liver Qi Stagnation

Appropriate amounts of Cyperus rotundus and Curcuma aromatica can be added to enhance the effect of soothing the liver and regulating qi. Cyperus rotundus is pungent, slightly bitter, slightly sweet, and neutral in nature, and it pertains to the liver, spleen, and triple energizer meridians. It can soothe the liver and relieve depression, regulate qi and alleviate distension in the middle jiao, and regulate menstruation and relieve pain. Curcuma aromatica is pungent, bitter, and cold in nature, and it pertains to the liver, gallbladder, and heart meridians. It has the functions of promoting blood circulation to relieve pain, regulating qi to relieve depression, clearing the heart and cooling blood, and promoting bile secretion to remove jaundice. When combined with Bupleurum chinense, they can more effectively disperse liver qi stagnation and make qi mechanism smooth.

2. More severe blood deficiency

The dosages of Angelica sinensis and Paeonia lactiflora can be increased, or drugs for nourishing blood and yin such as Rehmannia glutinosa and Colla Corii Asini can be added. Rehmannia glutinosa is sweet and slightly warm in nature, and it pertains to the liver and kidney meridians. It can enrich blood and nourish yin, and replenish essence and marrow. Colla Corii Asini is sweet and neutral in nature, and it pertains to the lung, liver, and kidney meridians. It has the effects of enriching blood and stopping bleeding, nourishing yin and moistening dryness. Adding these drugs can further supplement liver blood, nourish the liver body, and improve the symptoms of blood deficiency.

3. More obvious spleen deficiency

Yam and Coix lacryma-jobi can be added to strengthen the function of invigorating the spleen. Yam is sweet and neutral in nature, and it pertains to the spleen, lung, and kidney meridians. It can invigorate the spleen and nourish the stomach, promote the production of fluid and moisten the lung, and tonify the kidney and astringe essence. Coix lacryma-jobi is sweet, light, and cool in nature, and it pertains to the spleen, stomach, and lung meridians. It has the effects of promoting diuresis and excreting dampness, invigorating the spleen and stopping diarrhea, relieving arthralgia, discharging pus, and detoxifying and dissipating nodules. Strengthening the function of invigorating the spleen helps to transport and transform water dampness and improve the symptoms of spleen deficiency.

4. More severe stagnant heat

The dosages of Cortex Moutan and Gardenia jasminoides can be increased, or drugs for clearing heat and purging fire such as Coptis chinensis and Scutellaria baicalensis can be added. Coptis chinensis is bitter and cold in nature, and it pertains to the heart, spleen, stomach, liver, gallbladder, and large intestine meridians. It can clear heat and dry dampness, purge fire and detoxify. Scutellaria baicalensis is bitter and cold in nature, and it pertains to the lung, gallbladder, spleen, large intestine, and small intestine meridians. It has the effects of clearing heat and dry dampness, purging fire and detoxifying, stopping bleeding, and preventing miscarriage. Increasing the dosages of heat-clearing drugs can effectively clear the pathogenic heat transformed from liver qi stagnation.

VIII. Dosage (Traditional and modern concentrated granules)

1. Traditional method

The traditional usage is generally in powder or decoction form. The common dosage of the powder is 6 - 9 grams each time, twice a day; for the decoction, the dosage needs to be adjusted according to the condition and individual differences of the patient. Generally, 15 grams of Bupleurum chinensis, 10 grams of Angelica sinensis, 10 grams of Paeonia lactiflora, 10 grams of Atractylodes macrocephala, 10 grams of Poria cocos, 6 grams of Glycyrrhiza uralensis, 6 grams of Cortex Moutan, 6 grams of Gardenia jasminoides, 6 grams of Mentha haplocalyx, and 3 slices of fresh ginger are decocted in water for oral administration, 1 dose a day, taken warm in 2 divided doses. When decocting the medicine, pay attention to the heat intensity and time. Generally, bring to a boil with strong fire first, and then change to slow fire and simmer for 20 - 30 minutes to ensure that the effective components of the medicine are fully decocted.

2. Modern concentrated granules

Modern concentrated granules are more convenient to take. Their dosages generally vary according to the specifications of different manufacturers, but overall they are equivalent to the dosages of traditional decoctions. For example, for the concentrated granules of Modified Rambling Powder of a certain brand, the dosage for one time is 1 - 2 bags, twice a day, and it can be taken by冲服 with boiling water. The concentrated granules are extracted and concentrated by modern technology, retaining the effective components of the medicine, which is convenient for storage and taking, and meets the needs of modern fast-paced life.

IX. Precautions and taboos

1. Dietary taboos

During the period of taking Modified Rambling Powder, spicy, greasy, and stimulating foods should be avoided. These foods are likely to help generate fire and heat, exacerbate the symptoms of liver qi transforming into fire, and are not conducive to the recovery of the condition. For example, chili peppers, Chinese prickly ash, fried foods, etc. should be avoided as much as possible. At the same time, keep the diet light, eat more vegetables and fruits, which helps to nourish liver blood and promote the transportation and transformation of the spleen and stomach.

2. Emotional Regulation

Patients should keep their mood comfortable and avoid excessive emotional fluctuations. Long-term emotional discomfort is an important cause of liver qi stagnation. Although Modified Rambling Powder can soothe the liver and relieve depression, if patients do not pay attention to emotional regulation in daily life, it will still affect the treatment effect. Emotions can be soothed through appropriate exercise, listening to music, communicating with friends, etc., and a good mental state should be maintained.

3. Special Populations

Pregnant women should use Modified Rambling Powder with caution. Although most of the herbs in the formula are relatively mild, some herbs such as Bupleurum and Mentha haplocalyx have certain qi-regulating effects and may have an impact on the fetus. In addition, those with a deficiency-cold constitution and yang deficiency of the spleen and stomach should also use it with caution to avoid damaging yang qi and aggravating the deficiency-cold symptoms. Before using it, it is best to consult a professional doctor and use the medicine reasonably according to your own situation.

X. Modern Research Progress

1. Pharmacological Research

Modified Bupleurum and Rambling Powder (Modified Rambling Powder, Bupleurum and Gardenia Rambling Powder, Bupleurum and Cape Jasmine Rambling Powder) is composed of Rambling Powder plus Cortex Moutan and Fructus Gardeniae. It has the functions of soothing the liver and relieving depression, nourishing the blood and strengthening the spleen, and clearing heat. It is mainly used to treat irregular menstruation, breast hyperplasia, spontaneous sweating and night sweating, flushing cheeks and dry mouth caused by liver depression with blood deficiency or liver depression and spleen deficiency. It has a wide range of clinical applications and is often used in Bupleurum soothes the liver qi When combined with Poria cocos and other herbs, it has good clinical effects on the syndrome of disharmony between the liver and gallbladder (liver depression with blood deficiency, liver depression with spleen deficiency).

Modern research shows that Modified Xiaoyao Powder has various pharmacological effects. It has a regulatory effect on the nervous system, can improve emotional states such as depression and anxiety, and may be related to regulating neurotransmitter levels. In the digestive system, it can promote gastrointestinal peristalsis, increase digestive juice secretion, and help improve symptoms of indigestion. In terms of the liver, it can protect liver cells, reduce liver damage, and regulate the metabolic function of the liver. In addition, it also has anti-inflammatory, antioxidant and other effects, which have positive significance for maintaining the normal physiological functions of the body.

2. Clinical Efficacy Verification

A large number of clinical studies have confirmed the effectiveness of Modified Bupleurum and Rambling Powder in the treatment of various diseases. In terms of emotional diseases, a number of studies have shown that it can significantly improve the symptoms of patients with depression and anxiety, and improve the quality of life of patients. In gynecological diseases, for diseases such as irregular menstruation and dysmenorrhea, the clinical efficacy of Modified Bupleurum and Rambling Powder has been widely recognized. In the treatment of digestive system diseases, it can also effectively relieve symptoms such as epigastric distending pain and loss of appetite, and promote the recovery of gastrointestinal function. These studies provide a scientific basis for the clinical application of Modified Bupleurum and Rambling Powder, and further highlight its important value in clinical treatment of traditional Chinese medicine.