Chai Hu Gui Jiang Tang

Bupleurum, Cinnamon Twig, and Ginger Decoction · 柴胡桂姜汤

Also known as: Chai Hu Gui Zhi Gan Jiang Tang (柴胡桂枝干姜汤, Bupleurum, Cinnamon Twig, and Dry Ginger Decoction)

A classical formula for conditions where heat and cold are mixed in the body. It is commonly used when someone experiences alternating chills and fever, a sense of fullness or tightness in the chest and sides, thirst, irritability, and loose stools. It works by clearing heat from the Gallbladder system while simultaneously warming the Spleen, making it especially suited for people with digestive weakness alongside signs of upper-body heat such as a bitter taste in the mouth or dry throat.

Origin Shang Han Lun (傷寒論), Article 147, by Zhang Zhongjing — Eastern Hàn dynasty, c. 200 CE
Composition 7 herbs
Chai Hu
King
Chai Hu
Gui Zhi
Deputy
Gui Zhi
Gan Jiang
Deputy
Gan Jiang
Huang Qin
Assistant
Huang Qin
Tian Hua Fen
Assistant
Tian Hua Fen
Mu Li Ke
Assistant
Mu Li Ke
Gan Cao
Envoy
Gan Cao
Explore composition
Available in our store
View in Store
From $62.00

Educational content Consult qualified TCM practitioners for diagnosis and treatment

Patterns Addressed

In TCM, symptoms don't appear randomly — they cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Chai Hu Gui Jiang Tang is designed to correct these specific patterns.

Why Chai Hu Gui Jiang Tang addresses this pattern

This is the primary pattern for which the formula was designed, recorded in Shang Han Lun Article 147. The Shaoyang pivot (the body's mechanism for mediating between exterior and interior) has become constrained, trapping pathogenic influence in the half-exterior, half-interior level. Simultaneously, the Spleen yang has been damaged (often by inappropriate treatment such as sweating or purging), creating internal cold. This creates a mixed hot-and-cold picture: Gallbladder heat produces irritability, bitter taste, thirst, and head sweating, while Spleen cold produces loose stools, poor appetite, abdominal bloating, and cold limbs. Chai Hu and Huang Qin resolve the Shaoyang constraint and clear the upper heat, while Gui Zhi, Gan Jiang, and Zhi Gan Cao warm the Spleen and restore yang Qi. Tian Hua Fen and Mu Li address the fluid damage and focal knotting that result from the pathological stagnation.

A practitioner would look for one or more of these signs

Chills

Chills more prominent than fever, or intermittent low-grade fever

Chest Distension

Fullness and mild knotting in the chest and hypochondrium

Thirst

Thirst but without vomiting

Irritability

Mental restlessness and irritability

Excessive Sweating

Sweating only from the head

Difficult Urination

Scanty or difficult urination

Loose Stools

Loose stools or diarrhea indicating Spleen cold

Bitter Taste In The Mouth

Bitter taste in the mouth

Commonly Prescribed For

These conditions can arise from the patterns above. A practitioner would consider Chai Hu Gui Jiang Tang when these conditions are specifically caused by those patterns — not for all cases of these conditions.

Arises from: Gallbladder Heat

TCM Interpretation

TCM understands irritable bowel syndrome primarily through the relationship between the Liver and the Spleen. When emotional stress or internal constraint causes the Liver-Gallbladder system to stagnate and generate heat, this disrupts the Spleen's ability to properly transform food and fluids. The Liver 'attacks' the Spleen, leading to alternating bowel patterns, abdominal bloating, and flank discomfort. In the specific pattern this formula treats, there is both excess heat above (irritability, bitter taste, dry mouth) and cold deficiency below (loose stools, cold limbs, poor appetite), creating the characteristic mixed hot-cold presentation.

Why Chai Hu Gui Jiang Tang Helps

Chai Hu Gui Zhi Gan Jiang Tang addresses the root cause on both fronts. Chai Hu and Huang Qin resolve the Liver-Gallbladder stagnation and clear the heat that drives the 'Liver attacking the Spleen' dynamic. Simultaneously, Gan Jiang and Zhi Gan Cao warm the Spleen to restore its digestive function, directly treating the diarrhea. Gui Zhi promotes fluid metabolism and helps resolve the stagnation, while Tian Hua Fen and Mu Li address the thirst and focal tightness. The formula's ability to simultaneously cool the upper body and warm the lower body makes it particularly well-suited for IBS presentations where both stress-related heat signs and cold-type diarrhea coexist.

Also commonly used for

Chronic Gastritis

Chronic non-atrophic gastritis with Gallbladder heat and Spleen cold pattern

Insomnia

With irritability, thirst, and digestive symptoms

Depression

With mixed heat and cold signs, fatigue, and digestive disturbance

Anxiety

With chest tightness, irritability, and Spleen-deficiency symptoms

Diabetes

With thirst, fatigue, and loose stools in a cold-heat mixed pattern

Cholecystitis

Chronic cholecystitis with flank pain and digestive weakness

Sjogren Syndrome

Dry mouth and eyes with cold-deficient constitution

Low Grade Fever

Unexplained chronic low-grade fever

What This Formula Does

Every TCM formula has a specific set of actions — here's what Chai Hu Gui Jiang Tang does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, Chai Hu Gui Jiang Tang is primarily used to support these areas of health:

TCM Actions

In TCM terminology, these are the specific therapeutic actions that Chai Hu Gui Jiang Tang performs to restore balance in the body:

How It Addresses the Root Cause

TCM doesn't just suppress symptoms — it aims to resolve the underlying imbalance. Here's how Chai Hu Gui Jiang Tang works at the root level.

This formula addresses a complex situation where a pathogen has lodged in the Shaoyang ("half-exterior, half-interior") level, and prior inappropriate treatment with sweating and purging has damaged both the body's Yang Qi and its fluids. The result is a condition of intermingled Cold and Heat, with dysfunction at multiple levels.

In the upper body and Shaoyang level, Gallbladder fire becomes pent up, producing Heat that manifests as irritability, thirst, sweating confined to the head, and alternating chills and fever. Meanwhile, the Spleen's warming function (Yang) has been weakened by the misuse of purging. The Spleen can no longer properly transform and transport fluids, so water and thin fluids accumulate internally, causing slight binding and fullness in the chest and hypochondrium, and difficulty urinating. The famous Shang Han Lun scholar Liu Duzhou summarized this pathomechanism as "Gallbladder Heat with Spleen Cold" (胆热脾寒): Heat smoldering above in the Shaoyang while Cold and weakness lurk below in the Spleen. The body is caught between these two opposing conditions, and a simple clearing or warming approach alone would worsen the other half of the problem.

The thirst arises not because the body has excess Heat drying everything out, but because the Spleen's failure to distribute fluids means moisture cannot reach where it is needed, even as fluid accumulates in the wrong places. This is why the patient is thirsty yet does not vomit (the Stomach itself is not overwhelmed by fluid). The head-only sweating reflects Heat pushing upward because it cannot be properly vented through normal channels. This whole picture represents a pivotal moment where the body risks tipping from a mild mixed condition into a deeper, more serious illness.

Formula Properties

Every formula has an inherent temperature, taste, and affinity for specific organs — these properties determine how it interacts with the body

Overall Temperature

Slightly Warm

Taste Profile

Predominantly bitter and pungent with a sweet undertone. Bitter (from Huang Qin, Tian Hua Fen) clears Heat; pungent (from Gui Zhi, Gan Jiang) disperses Cold and moves Qi; sweet (from Zhi Gan Cao) harmonizes.

Target Organs

Liver Gallbladder Spleen San Jiao (Triple Burner)

Ingredients

7 herbs

The herbs that make up Chai Hu Gui Jiang Tang, organized by their role in the prescription

King — Main ingredient driving the formula
Deputy — Assists and enhances the King
Assistant — Supports or moderates other herbs
Envoy — Directs the formula to its target
King — Main ingredient driving the formula
Chai Hu

Chai Hu

Bupleurum root

Dosage 12 - 24g
Temperature Slightly Cool
Taste Acrid / Pungent (辛 xīn), Bitter (苦 kǔ)
Organ Affinity Liver, Gallbladder, Lungs

Role in Chai Hu Gui Jiang Tang

The chief herb and core of the formula. Chai Hu enters the Liver and Gallbladder channels, where it resolves Shaoyang-level constraint and restores the smooth pivoting function of the Shaoyang. At its high dose it powerfully disperses stagnation from the chest and hypochondriac region, addressing the fullness and mild knotting felt there.
Deputies — Assists and enhances the King
Gui Zhi

Gui Zhi

Cinnamon twig

Dosage 6 - 9g
Temperature Warm
Taste Acrid / Pungent (辛 xīn), Sweet (甘 gān)
Organ Affinity Heart, Lungs, Urinary Bladder

Role in Chai Hu Gui Jiang Tang

Warms and unblocks yang Qi, assists the transformation of body fluids, and disperses mild knotting and accumulation in the chest and flanks. Combined with Gan Jiang and Zhi Gan Cao, it forms a warming group that supports Spleen yang and promotes the movement of fluids through the San Jiao (Triple Burner).
Gan Jiang

Gan Jiang

Dried ginger rhizome

Dosage 3 - 6g
Temperature Hot
Taste Acrid / Pungent (辛 xīn)
Organ Affinity Heart, Spleen, Lungs, Stomach

Role in Chai Hu Gui Jiang Tang

Warms the middle burner and restores Spleen yang, directly addressing the internal cold and weakness produced by the disease process. Where Xiao Chai Hu Tang uses fresh ginger (Sheng Jiang) to disperse and harmonize, this formula substitutes dried ginger to warm the interior more powerfully, reflecting the shift toward treating internal cold deficiency.
Assistants — Supports or moderates other herbs
Huang Qin

Huang Qin

Baical skullcap root

Dosage 6 - 9g
Temperature Cold
Taste Bitter (苦 kǔ)
Organ Affinity Lungs, Gallbladder, Spleen, Large Intestine, Small Intestine, Heart, Stomach

Role in Chai Hu Gui Jiang Tang

Clears heat from the Shaoyang level, particularly Gallbladder heat that manifests as irritability, bitter taste, and head sweating. Paired with Chai Hu, it forms the classical pair for resolving Shaoyang disorders: Chai Hu lifts and disperses while Huang Qin descends and clears, preventing Chai Hu from scattering yin.
Tian Hua Fen

Tian Hua Fen

Trichosanthes root

Dosage 9 - 12g
Temperature Cool
Taste Sweet (甘 gān), Bitter (苦 kǔ)
Organ Affinity Lungs, Stomach

Role in Chai Hu Gui Jiang Tang

Generates fluids and clears heat to address thirst caused by damage to body fluids. It nourishes yin at the Yangming (Stomach) level, counterbalancing the drying nature of the warming herbs in the formula. Paired with Mu Li, it softens nodulations and promotes fluid distribution.
Mu Li Ke

Mu Li Ke

Oyster shell

Dosage 6 - 15g
Temperature Slightly Cool
Taste Salty (咸 xián), Astringent (涩 sè)
Organ Affinity Liver, Gallbladder, Kidneys
Preparation Dry-fried (熬) before use; decoct first for 20-30 minutes

Role in Chai Hu Gui Jiang Tang

Softens hardness and dissipates nodulation in the chest and hypochondriac area, addressing the 'mild knotting' (微结) described in the original text. Also astringes fluids to prevent further loss through sweating and helps settle the spirit to ease irritability.
Envoy — Directs the formula to its target
Gan Cao

Gan Cao

Licorice root

Dosage 3 - 6g
Temperature Neutral
Taste Sweet (甘 gān)
Organ Affinity Heart, Lungs, Spleen, Stomach

Role in Chai Hu Gui Jiang Tang

Harmonizes all the herbs in the formula. Together with Gan Jiang, it echoes the classical Gan Cao Gan Jiang Tang pairing that restores Spleen yang. Its sweet flavor tonifies the middle burner and moderates the bitter-cold properties of Huang Qin, ensuring the cooling and warming herbs work in concert.

Why This Combination Works

How the herbs in Chai Hu Gui Jiang Tang complement each other

Overall strategy

This formula addresses a complex situation where Shaoyang-level constraint (heat in the Gallbladder system) coexists with internal cold deficiency of the Spleen. The prescription pairs cooling, dispersing herbs with warming, tonifying herbs to simultaneously clear upper heat and warm the lower cold, while generating fluids and dissipating stagnation.

King herbs

Chai Hu (Bupleurum) at a high dose serves as the King, pivoting the Shaoyang mechanism to relieve the stagnation that causes alternating chills and fever and fullness in the chest and sides. It is the indispensable driver of the formula's harmonizing action, ensuring that constrained Qi can once again flow freely through the half-exterior, half-interior level.

Deputy herbs

Gui Zhi (Cinnamon Twig) and Gan Jiang (Dried Ginger) form the warming wing of the formula. Gan Jiang directly warms the Spleen to address internal cold, while Gui Zhi promotes yang Qi circulation and helps transform stagnant fluids. This is the key modification from Xiao Chai Hu Tang: replacing fresh ginger with dried ginger shifts the formula's emphasis from exterior dispersal to interior warming. Together, they support the Spleen's ability to transport and transform, addressing the loose stools and poor digestion that characterize this pattern.

Assistant herbs

Huang Qin (Scutellaria) is a reinforcing assistant that pairs with Chai Hu to form the classic Shaoyang pair. While Chai Hu opens and lifts, Huang Qin descends and clears heat, preventing the upward flaring that causes irritability and head sweating. Tian Hua Fen (Trichosanthes Root) is a restraining assistant: it generates fluids and clears heat to counterbalance the drying tendency of Gui Zhi and Gan Jiang, directly addressing the thirst that signals fluid damage. Mu Li (Oyster Shell) serves a dual role: as a counteracting assistant, it softens the mild nodulation in the flanks and chest, while its astringent quality helps prevent further fluid loss.

Envoy herbs

Zhi Gan Cao (Honey-prepared Licorice) harmonizes the entire formula, bridging the cold-clearing and warmth-promoting herb groups. Paired with Gan Jiang, it echoes the Gan Cao Gan Jiang Tang combination that specifically restores Spleen yang. Its sweet flavor also buffers the bitter-cold nature of Huang Qin.

Notable synergies

The Chai Hu and Huang Qin pairing is the engine of Shaoyang harmonization: one disperses upward and outward, the other clears and descends, together restoring the pivot. The Gan Jiang and Zhi Gan Cao pairing (from Gan Cao Gan Jiang Tang) specifically rescues Spleen yang, addressing the cold-deficiency dimension. Tian Hua Fen and Mu Li together generate fluids and soften nodulation, treating both the thirst and the focal tightness in the hypochondrium. The overall architecture creates a formula that treats heat above and cold below simultaneously, a hallmark of its clinical versatility.

How to Prepare

Traditional preparation instructions for Chai Hu Gui Jiang Tang

Combine all seven herbs and add approximately 2,400 mL (one dou two sheng) of water. Bring to a boil and simmer until the liquid is reduced to approximately 1,200 mL. Strain out the dregs. Return the strained liquid to the pot and simmer again (a technique called 'double decoction' or zai jian 再煎) until reduced to approximately 600 mL. Take one warm dose of approximately 200 mL, three times daily.

Note: Mu Li (oyster shell) should be dry-fried (ao 熬) before decocting, and should ideally be added to the pot first and decocted for 20-30 minutes before adding the other herbs. Gan Cao should be honey-prepared (zhi 炙).

According to the original text, mild irritability may occur after the first dose. After the second dose, sweating should occur and the condition will resolve.

Common Modifications

How practitioners adapt Chai Hu Gui Jiang Tang for specific situations

Added
Bai Zhu

9-15g, strengthens the Spleen and dries dampness

Fu Ling

9-15g, promotes water metabolism and supports the Spleen

When diarrhea is the dominant symptom, Bai Zhu and Fu Ling reinforce the Spleen's transforming and transporting function and help resolve the damp accumulation that drives the loose stools.

Educational content — always consult a qualified healthcare provider or TCM practitioner before using any herbal formula.

Contraindications

Situations where Chai Hu Gui Jiang Tang should not be used or requires extra caution

Avoid

Pure Yangming excess Heat patterns with high fever, profuse sweating, constipation, and strong pulse. The warming herbs (Gui Zhi, Gan Jiang) in this formula would worsen interior excess Heat.

Avoid

Full exterior pattern (Taiyang stage) that has not yet turned inward. This formula is designed for a condition where the pathogen has moved to the Shaoyang level, not for acute surface-stage illness.

Caution

Yin deficiency with pronounced Heat signs (night sweats, five-palm heat, red tongue with no coating). The warming nature of Gui Zhi and Gan Jiang may further damage Yin if the pattern is predominantly Yin-deficient Heat rather than mixed Cold-Heat.

Caution

Patients with severe pre-existing dehydration or profuse fluid loss. Though the formula contains Tian Hua Fen and Mu Li to generate and preserve fluids, the overall strategy assumes a mixed pattern, not isolated fluid depletion.

Caution

Deep, weak pulse with pale, flaccid tongue body indicating severe Qi and Yang collapse. This formula addresses a mild to moderate degree of Cold-Heat complexity and is not strong enough for profound deficiency collapse.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

Use with caution during pregnancy. Gui Zhi (Cinnamon Twig) has warming, blood-moving properties that may theoretically stimulate uterine activity, though it is generally considered mild in this regard. Gan Jiang (Dried Ginger) is a warming herb that in larger doses could generate internal Heat. Neither herb is classified as a strongly prohibited substance in pregnancy, but the combination's warming and moving actions warrant careful monitoring. Should only be used during pregnancy when clearly indicated by a qualified practitioner, at reduced dosages, and for the shortest effective duration.

Breastfeeding

Generally considered compatible with breastfeeding when used appropriately under practitioner guidance. None of the seven herbs (Chai Hu, Gui Zhi, Gan Jiang, Tian Hua Fen, Huang Qin, Mu Li, Zhi Gan Cao) are classified as strongly contraindicated during lactation in traditional sources. Huang Qin (Scutellaria) is bitter and cold, and its flavonoid compounds could theoretically transfer to breast milk in small amounts, potentially causing mild digestive upset in a nursing infant. Gan Cao (Licorice) in prolonged use could affect maternal electrolyte balance. Monitor the infant for any signs of fussiness or loose stools. Use for the shortest effective duration at standard or reduced dosages.

Children

This formula can be used in older children (generally above age 6) with appropriate dosage reductions, typically one-third to one-half of the adult dose depending on body weight and age. The pattern it treats (Shaoyang disorder with mixed Cold and Heat) does occur in children, particularly in prolonged febrile illnesses or chronic digestive complaints with alternating symptoms. Gan Jiang and Gui Zhi are warming, so dosages should be conservative in children who tend to run warm constitutionally. Not recommended for infants or very young children without specific practitioner guidance. Taste may be challenging for children due to the bitter Huang Qin and mineral Mu Li. Decoction can be divided into smaller, more frequent doses.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with Chai Hu Gui Jiang Tang

Gan Cao (Licorice root): Glycyrrhizin in Gan Cao can cause potassium loss and sodium retention with prolonged use. This may interact with diuretics (especially thiazides and loop diuretics, increasing hypokalemia risk), cardiac glycosides like digoxin (hypokalemia potentiates digoxin toxicity), corticosteroids (additive mineralocorticoid effects), and antihypertensive medications (may counteract blood pressure lowering due to sodium and water retention).

Chai Hu (Bupleurum root): Contains saikosaponins which may affect hepatic cytochrome P450 enzyme activity. Caution is advised with medications that have a narrow therapeutic index and are metabolized by the liver, including warfarin, cyclosporine, and certain anticonvulsants. Patients on these medications should have drug levels monitored.

Huang Qin (Scutellaria root): Baicalin and baicalein have demonstrated inhibitory effects on certain CYP enzymes in laboratory studies. Theoretical interactions exist with statins and other CYP3A4-metabolized drugs, though clinical significance is not fully established.

Gui Zhi (Cinnamon Twig): May have mild anticoagulant properties. Exercise caution when combined with anticoagulant or antiplatelet drugs (warfarin, aspirin, clopidogrel).

Usage Guidance

Practical advice for getting the most out of Chai Hu Gui Jiang Tang

Best time to take

Warm, twice daily (morning and evening), ideally 30-60 minutes before meals or between meals on a relatively empty stomach.

Typical duration

Acute conditions: 5-14 days. Chronic patterns (e.g. chronic hepatitis, IBS, menopausal symptoms): 4-8 weeks with periodic reassessment.

Dietary advice

Avoid cold, raw, and greasy foods while taking this formula. Cold foods (ice water, raw salads, chilled fruits) can further burden the already weakened Spleen Yang. Greasy, fried, or rich foods generate Dampness and obstruct Qi flow, counteracting the formula's effort to resolve fluid accumulation. Also limit alcohol, spicy-hot foods, and strong coffee, as these can aggravate the Gallbladder Heat component of the pattern. Favor warm, easily digestible meals: congee, lightly cooked vegetables, soups, and mild grains. Small, frequent meals are preferable to large heavy ones.

Chai Hu Gui Jiang Tang originates from Shang Han Lun (傷寒論), Article 147, by Zhang Zhongjing Eastern Hàn dynasty, c. 200 CE

Classical Texts

Key passages from the classical Chinese medical texts that first described Chai Hu Gui Jiang Tang and its clinical use

Shang Han Lun (伤寒论), Clause 147:

「伤寒五六日,已发汗而复下之,胸胁满微结,小便不利,渴而不呕,但头汗出,往来寒热,心烦者,此为未解也,柴胡桂枝干姜汤主之。」

"When cold damage has persisted for five or six days, and sweating and purging have already been used, yet there is fullness and slight binding in the chest and hypochondrium, inhibited urination, thirst without vomiting, sweating only from the head, alternating chills and fever, and irritability, the condition remains unresolved. Chai Hu Gui Zhi Gan Jiang Tang governs this."


Jin Gui Yao Lue (金匮要略), Chapter on Malaria (疟病脉证并治), appended from Wai Tai Mi Yao (外台秘要):

「柴胡桂姜汤方:治疟寒多,微有热,或但寒不热,服一剂如神效。」

"Chai Hu Gui Jiang Tang: Treats malaria with predominant chills and slight fever, or chills only without fever. One dose produces miraculous effect."


Yi Zong Jin Jian (医宗金鉴):

「少阳表里未解,故以柴胡、桂枝合剂而治之,即小柴胡之变法也。」

"The Shaoyang exterior and interior are both unresolved, therefore Chai Hu and Gui Zhi are combined to treat it. This is a modification of Xiao Chai Hu Tang."

Historical Context

How Chai Hu Gui Jiang Tang evolved over the centuries — its origins, lineage, and place in the broader tradition of Chinese medicine

Chai Hu Gui Jiang Tang (full name: Chai Hu Gui Zhi Gan Jiang Tang, 柴胡桂枝干姜汤) was created by Zhang Zhongjing during the Eastern Han Dynasty (circa 200 CE) and appears in two of his works. Its primary appearance is in Shang Han Lun Clause 147, where it treats a Shaoyang disorder complicated by prior misuse of sweating and purging. It also appears in the Jin Gui Yao Lue (via the appended Wai Tai Mi Yao text) for treating a type of malaria with predominant chills. Among the six Chai Hu formulas in the Shang Han Lun, this one has historically been the least commonly discussed, and its interpretation has generated more debate than perhaps any other formula in the text.

The modern revival of this formula owes much to two 20th-century masters with contrasting interpretations. Liu Duzhou (刘渡舟), inspired by his teacher Chen Shenwu's (陈慎吾) cryptic remark that the formula is for Shaoyang patterns "with a turning toward Yin" (阴证机转), developed the influential "Gallbladder Heat, Spleen Cold" (胆热脾寒) framework and used the formula widely for chronic hepatitis and digestive disorders where bitter taste coexists with loose stools. Hu Xishu (胡希恕) took a different path, viewing the formula as addressing a half-interior Cold-Heat complexity with mild constipation, and applied it successfully to unexplained low-grade fevers. In Japan, the formula (known as Saiko-keishi-kankyō-tō) has been part of the national Kampo pharmacopeia and is particularly favored for patients with weak constitutions, menopausal symptoms, and neuropsychiatric conditions.

Modern Research

3 published studies investigating the pharmacological effects or clinical outcomes of Chai Hu Gui Jiang Tang

1

Clinical trial: Chai-hu-gui-zhi-gan-jiang-tang regulates plasma IL-6 and sIL-6R and improves depressed mood in climacteric women with insomnia (2005)

Ushiroyama T, Ikeda A, Sakuma K, Ueki M. The American Journal of Chinese Medicine, 2005, Vol. 33(5), pp. 703-711.

This study compared the herbal formula against antidepressants in 90 peri- and post-menopausal women with insomnia and mood disorder. After 3 months, both groups showed comparable improvement in climacteric and depression scores. However, the herbal formula group showed significantly greater reductions in inflammatory markers IL-6 and sIL-6R, suggesting the formula may alleviate menopausal distress partly through anti-inflammatory mechanisms.

PubMed
2

Clinical crossover study: Chaihu-Guizhi-Ganjiang Decoction is more efficacious in treating irritable bowel syndrome than Dicetel according to metabolomics analysis (2022)

Li M, Zhu J, Liu X, et al. Drug Design, Development and Therapy, 2022, Vol. 16, pp. 4455-4470.

In a crossover design with 35 IBS patients, the herbal formula was compared with pinaverium bromide (Dicetel). The formula showed significantly better efficacy than Dicetel for IBS symptoms assessed by both Rome IV criteria and TCM criteria. Metabolomics analysis of plasma samples revealed distinct metabolic changes, particularly in carnitine-related pathways, providing insight into the formula's mechanism of action in digestive disorders.

PubMed
3

Preclinical study: Chaihu Guizhi Ganjiang Decoction ameliorates pancreatic fibrosis via JNK/mTOR signaling pathway (2021)

Cui L, Li C, Shang Y, Li D, Zhuo Y, Yang L, Cui N, Li Y, Zhang S. Frontiers in Pharmacology, 2021, Vol. 12, 679557.

Using a chronic pancreatitis rat model, this study found that the formula attenuated pancreatic damage, decreased collagen deposition, and inhibited activation of pancreatic stellate cells. The mechanism involved suppression of autophagy through downregulation of key autophagy proteins and facilitation of mTOR and JNK phosphorylation. This provides pharmacological evidence for the formula's traditional use in digestive system diseases.

Research on TCM formulas is growing but still limited by Western clinical trial standards. These studies provide emerging evidence and should be considered alongside practitioner expertise.