Yi Guan Jian

Linking Decoction · 一貫煎

Also known as: Effective Integration Decoction, Liver-Reinforcing Decoction, Glehnia and Rehmannia Formula

A classical formula designed to deeply nourish and moisten the Liver and Kidneys while gently restoring the smooth flow of Liver Qi. It is used for people experiencing rib-side or chest pain, acid reflux, bitter taste in the mouth, dry throat, and emotional tension that arise when the body's fluids and blood become depleted, leaving the Liver dry and unable to function smoothly.

Origin Xù Míng Yī Lèi Àn (《续名医类案》Continuation of Famous Physicians' Cases Organized by Categories), Volume 18, by Wèi Zhīxiù (魏之琇) — Qīng dynasty, 1770 CE
Composition 6 herbs
Shu Di huang
King
Shu Di huang
Dang Gui
Deputy
Dang Gui
Gou Qi Zi
Deputy
Gou Qi Zi
Bei Sha Shen
Deputy
Bei Sha Shen
Mai Dong
Deputy
Mai Dong
Chuan Lian Zi
Assistant
Chuan Lian Zi
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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. Yi Guan Jian is designed to correct these specific patterns.

Why Yi Guan Jian addresses this pattern

This is the primary pattern Yi Guan Jian addresses. When the Yin of the Liver and Kidneys becomes depleted, the Liver loses its material foundation. The Liver's nature is described as 'body Yin, function Yang,' meaning it depends on a rich supply of Blood and Yin to maintain its smooth regulatory function. Without adequate Yin, the Liver becomes dry and tense, its Qi stagnates, and it may flare upward or invade the Stomach sideways. Sheng Di Huang and Gou Qi Zi directly replenish Liver-Kidney Yin and Essence, while Dang Gui nourishes and moves the Blood. Bei Sha Shen and Mai Dong restore fluids to the Lung and Stomach, indirectly supporting the Liver through inter-organ relationships. This comprehensive Yin restoration allows the Liver's Qi to self-regulate, resolving the stagnation at its root rather than merely dispersing it.

A practitioner would look for one or more of these signs

Hypochondriac Pain

Rib-side and chest pain that worsens with stress or emotional upset

Dry Mouth

Dry throat and mouth from depleted fluids

Acid Reflux

Acid reflux or sour taste due to Liver Qi invading the Stomach

Bitter Taste In The Mouth

Bitter taste in the mouth from depressed Liver Heat

Night Sweats

Possible night sweats and low-grade heat sensations from Yin deficiency

Commonly Prescribed For

These conditions can arise from the patterns above. A practitioner would consider Yi Guan Jian when these conditions are specifically caused by those patterns — not for all cases of these conditions.

TCM Interpretation

In TCM, chronic hepatitis is understood as a prolonged illness that progressively depletes the Liver's Yin and Blood. In the early stages, there may be more Dampness and Heat involvement, but as the disease lingers, the body's fluids and nourishing substances are consumed. The Liver, deprived of its Yin foundation, can no longer regulate Qi smoothly. This leads to flank pain, poor digestion, emotional irritability, and progressive dryness. When the disease reaches this stage, the pattern shifts from excess (Damp-Heat) to a mixed picture of deficiency with secondary Qi stagnation. The Kidney also becomes involved because the Liver and Kidney share a common Yin root.

Why Yi Guan Jian Helps

Yi Guan Jian directly addresses the depleted Yin foundation that underlies chronic hepatitis in its middle and later stages. Sheng Di Huang replenishes Liver and Kidney Yin, while Gou Qi Zi and Dang Gui nourish Liver Blood and Essence. Bei Sha Shen and Mai Dong support Stomach and Lung fluids, which are often damaged by the prolonged illness. The small dose of Chuan Lian Zi maintains Qi flow and clears lingering depressed Heat without further drying the already depleted system. Modern research has identified hepatoprotective and antifibrotic effects in this formula, with studies showing it may help reduce liver fibrosis markers in chronic hepatitis B patients.

Also commonly used for

Cirrhosis

Liver fibrosis and cirrhosis

Gastric Ulcer

Gastric and duodenal ulcers

Intercostal Neuralgia

Rib-side pain of unclear origin

Sjogren's Syndrome

Dryness syndrome (Sjogren's)

Renal Hypertension

Essential hypertension from Liver-Kidney Yin deficiency

Neuroses

Neurosis and anxiety with Yin deficiency

What This Formula Does

Every TCM formula has a specific set of actions — here's what Yi Guan Jian does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, Yi Guan Jian is primarily used to support these areas of health:

TCM Actions

In TCM terminology, these are the specific therapeutic actions that Yi Guan Jian 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 Yi Guan Jian works at the root level.

The Liver is described in TCM as an organ whose substance is Yin (it stores Blood) but whose function is Yang (it ensures the smooth flow of Qi throughout the body). When the Yin of the Liver and Kidneys becomes depleted, whether from chronic illness, emotional strain, aging, or overwork, the Liver loses its internal moisture and nourishment. Without adequate Yin to anchor and soften it, the Liver's Qi can no longer flow smoothly. This is a crucial distinction: the Qi stagnation here is not caused by emotional suppression or external constraint, but arises because the Liver's own substance has withered. A dried-out Liver becomes rigid and tense, and its Qi naturally becomes stuck.

When the stagnant Liver Qi rebels sideways, it invades the Stomach, producing symptoms like flank and chest pain, acid reflux, and a bitter taste in the mouth. Meanwhile, the Yin deficiency itself manifests as dryness: a parched throat, dry mouth, a red tongue with little coating, and a thin or wiry-weak pulse. The standard clinical approach to Liver Qi stagnation uses acrid, aromatic, Qi-moving herbs, but in this situation those herbs would be disastrous. They are drying by nature, and would deplete the already-exhausted Yin fluids further, making the stagnation progressively worse. Yi Guan Jian addresses this problem at its root: rather than forcing the Qi to move, it replenishes the Yin and Blood that the Liver needs to function. Once the Liver's substance is restored, its Qi naturally regains its smooth, free-flowing character.

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

Cool

Taste Profile

Predominantly sweet and slightly bitter — sweet herbs (Rehmannia, Goji, Ophiopogon, Glehnia, Angelica) nourish Yin and generate fluids, while the single bitter herb (Toosendan) drains Liver Heat and moves stagnant Qi.

Channels Entered

Liver Kidney Lung Stomach

Ingredients

6 herbs

The herbs that make up Yi Guan Jian, 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
King — Main ingredient driving the formula
Shu Di huang

Shu Di huang

Prepared rehmannia

Dosage 18 - 30g
Temperature Warm
Taste Sweet
Organ Affinity Kidneys, Liver

Role in Yi Guan Jian

Used in the largest dose, Sheng Di Huang is the principal herb. It richly nourishes Yin and Blood, replenishes the Liver and Kidneys, cools Heat from deficiency, and generates fluids. This embodies the classical strategy of 'nourishing Water to moisten Wood' (zi shui han mu), meaning that by restoring Kidney Yin, the Liver receives the nourishment it needs to function smoothly.
Deputies — Assists and enhances the King
Dang Gui

Dang Gui

Dong quai

Dosage 9 - 12g
Temperature Warm
Taste Pungent, Sweet
Organ Affinity Heart, Liver, Spleen

Role in Yi Guan Jian

Nourishes and harmonizes Blood, supplements the Liver, and softens its tendency to become tense and constrained. Its mildly warm and dispersing quality prevents the large team of cold, moistening herbs from becoming overly stagnating, keeping the formula gently moving.
Gou Qi Zi

Gou Qi Zi

Goji berries

Dosage 9 - 18g
Temperature Neutral
Taste Sweet
Organ Affinity Kidneys, Liver

Role in Yi Guan Jian

Directly tonifies Liver and Kidney Yin and nourishes the Blood and Essence stored in the Liver. Works alongside Sheng Di Huang to replenish the root deficiency, while its sweet and neutral nature makes it gentle on the Stomach.
Bei Sha Shen

Bei Sha Shen

Glehnia roots

Dosage 9 - 12g
Temperature Cool
Taste Bitter, Sweet
Organ Affinity Lungs, Stomach

Role in Yi Guan Jian

Nourishes Lung and Stomach Yin and generates fluids. By strengthening the Lung (Metal element), it applies gentle regulatory control over the Liver (Wood element) through the classical 'Metal restrains Wood' relationship, helping to calm overactive Liver Qi from an inter-organ perspective.
Mai Dong

Mai Dong

Dwarf lilyturf roots

Dosage 9 - 12g
Temperature Cool
Taste Bitter, Sweet
Organ Affinity Heart, Lungs, Stomach

Role in Yi Guan Jian

Nourishes Stomach and Lung Yin, generates fluids, and clears mild deficiency Heat. Pairs with Bei Sha Shen to address dryness in the upper body (dry throat, dry mouth) and to support the Stomach's fluid-producing function, which indirectly nourishes the Liver.
Assistant — Supports or moderates other herbs
Chuan Lian Zi

Chuan Lian Zi

Sichuan chinaberries

Dosage 4.5 - 6g
Temperature Cold
Taste Bitter
Organ Affinity Spleen, Liver, Small Intestine

Role in Yi Guan Jian

The only Qi-moving herb in the formula, used in a deliberately small dose. It courses the Liver, regulates Qi flow, clears constrained Liver Heat, and stops pain. Its bitter and cold nature drains the depressed Heat that arises from Yin deficiency. Embedded within the large group of sweet moistening herbs, its drying tendency is completely neutralized, leaving only its beneficial Qi-moving action.

Why This Combination Works

How the herbs in Yi Guan Jian complement each other

Overall strategy

The core problem is that Liver and Kidney Yin have become depleted, leaving the Liver 'body' (its material, nourishing aspect) starved of moisture and blood. When the Liver lacks substance, its functional Qi becomes constrained and erratic. The formula's strategy is therefore primarily to replenish what is missing (Yin, Blood, fluids) and only secondarily to move what is stuck (Liver Qi), following the classical principle that 'the Liver's body is Yin but its function is Yang' (gan ti yin er yong yang). By deeply nourishing Liver Yin, the formula allows the Liver's Qi to flow smoothly on its own, a technique described as 'softening the Liver to stand in for coursing' (yi rou gan dai shu gan).

King herb

Sheng Di Huang is used at the highest dosage (18-30g), far exceeding the other herbs. It powerfully nourishes Yin and Blood and directly replenishes the Liver and Kidneys. This reflects the strategy of 'nourishing Water to moisten Wood': by enriching Kidney Yin (Water), the Liver (Wood) receives the deep nourishment it needs. Its sweet, cold nature also gently clears the deficiency Heat that develops when Yin is depleted.

Deputy herbs

Four herbs serve as Deputies, working in two functional pairs. Dang Gui and Gou Qi Zi nourish Blood and Liver-Kidney Yin directly, reinforcing the King herb's core action. Dang Gui's slight warmth and dispersing quality also prevents the formula from becoming overly cloying. Bei Sha Shen and Mai Dong nourish Lung and Stomach Yin and generate fluids. This serves two purposes: it addresses the upper body dryness symptoms (dry throat, dry mouth) and it engages classical inter-organ regulation. Nourishing the Lung (Metal) allows Metal to gently restrain overactive Wood (Liver), while nourishing the Stomach (Earth) supports Earth's ability to regulate Wood. These four Deputies thus address the root deficiency from multiple organ systems simultaneously.

Assistant herbs

Chuan Lian Zi is the sole Assistant, used in a deliberately small dose (4.5-6g). It is a restraining and redirecting assistant: its bitter, cold nature courses the Liver, drains depressed Liver Heat, and directly relieves the rib-side pain, acid reflux, and bitter taste. Although Chuan Lian Zi is inherently somewhat drying, when embedded within such a large group of sweet, moistening herbs, its harsh quality is fully neutralized. This is a hallmark of the formula's design: a single Qi-moving herb prevents the heavy nourishing herbs from creating stagnation, while the nourishing herbs prevent the Qi-moving herb from further damaging Yin.

Notable synergies

The most celebrated pairing is the five Yin-nourishing herbs together with the single Qi-moving herb (Chuan Lian Zi). This combination expresses the principle of 'combining supplementation with coursing, with supplementation as the priority.' Another key interaction is Bei Sha Shen + Mai Dong working as a functional unit: together they generate fluids and nourish the Lung-Stomach axis, creating an indirect check on Liver excess through Five Element relationships. Dang Gui's mildly warm, moving nature balances the cooling, still quality of Sheng Di Huang, preventing the formula from becoming overly cold and stagnant.

How to Prepare

Traditional preparation instructions for Yi Guan Jian

Decoct all six herbs together in approximately 600 mL of water. Bring to a boil, then simmer on low heat for 30 to 40 minutes until the liquid is reduced to roughly 200–300 mL. Strain and divide into two portions, taking one in the morning and one in the evening, warm, on an empty stomach or between meals.

Common Modifications

How practitioners adapt Yi Guan Jian for specific situations

Added
Huang Lian

3-5g, wine-fried (jiu chao), to clear depressed Liver-Stomach Heat

This is the modification from the original text. When bitter dryness is pronounced, it indicates that constrained Liver Qi has transformed into Fire. Wine-fried Huang Lian clears this depressed Fire from the Liver and Stomach while directing its action to the upper body.

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

Contraindications

Situations where Yi Guan Jian should not be used or requires extra caution

Avoid

Phlegm-Dampness or fluid retention (停痰积饮) with a white greasy tongue coating and deep wiry pulse. The formula is predominantly sweet and cloying, which can worsen Dampness and obstruct Qi flow.

Caution

Spleen and Stomach Yang deficiency with cold signs such as loose stools, poor appetite, and cold limbs. The formula's cool, Yin-nourishing nature may further impair Spleen function.

Caution

Liver Qi stagnation without underlying Yin deficiency. If the root problem is simple Qi stagnation rather than Yin depletion, standard Qi-moving formulas are more appropriate.

Caution

Excess-type Liver Fire or Liver-Gallbladder Damp-Heat conditions. This formula nourishes deficiency and is not designed to drain substantial excess Heat or Dampness.

Caution

Pre-existing liver impairment with sensitivity to Chuan Lian Zi (Toosendan Fruit). Chuan Lian Zi is classified as slightly toxic in the Chinese Pharmacopoeia and prolonged or high-dose use may stress the liver.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

Use with caution during pregnancy. Chuan Lian Zi (Toosendan Fruit) is classified as slightly toxic (小毒) in the Chinese Pharmacopoeia, and its safety in pregnancy has not been established. While Yi Guan Jian is not a strongly contraindicated formula in pregnancy (it contains no abortifacient or strongly Blood-moving herbs), the presence of Chuan Lian Zi warrants caution. Sheng Di Huang (raw Rehmannia) is very cold in nature, which may also be a concern in pregnancy where cold herbs are generally used conservatively. Pregnant women should only take this formula under direct supervision of a qualified practitioner who can assess the risk-benefit ratio for their specific situation.

Breastfeeding

No specific contraindication for breastfeeding has been established for Yi Guan Jian. The formula consists primarily of mild Yin-nourishing herbs (Rehmannia, Ophiopogon, Glehnia, Goji berry, Angelica) that are not known to be harmful during lactation. The main concern is Chuan Lian Zi (Toosendan Fruit), which is classified as slightly toxic and whose transfer into breast milk has not been studied. As a precaution, breastfeeding mothers should use this formula only under the guidance of a qualified practitioner, and the dosage of Chuan Lian Zi should be kept conservative.

Children

Yi Guan Jian is not commonly used in pediatric practice, as the pattern it addresses (Liver-Kidney Yin deficiency with Qi stagnation) is more typically seen in adults. If used in older children or adolescents who present with a clear Yin-deficient Liver pattern, dosages should be reduced to approximately one-third to one-half of adult doses depending on age and body weight. Chuan Lian Zi is classified as slightly toxic and should be used with particular caution in children; reduce its proportion or substitute with a milder Qi-regulating herb if needed. This formula is generally not appropriate for young children (under age 6). Use should always be supervised by a qualified practitioner.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with Yi Guan Jian

Chuan Lian Zi (Toosendan Fruit): This herb is classified as slightly toxic in the Chinese Pharmacopoeia and contains compounds (toosendanin) that may have hepatotoxic potential at high doses or with prolonged use. People taking hepatotoxic medications (acetaminophen, statins, methotrexate, anti-tuberculosis drugs) should exercise caution, as there may be an additive risk of liver injury.

Sheng Di Huang (raw Rehmannia) and Dang Gui (Angelica sinensis): Both herbs have mild blood-nourishing and blood-moving properties. Patients on anticoagulant or antiplatelet medications (warfarin, heparin, aspirin, clopidogrel) should be monitored, as there is a theoretical risk of increased bleeding tendency.

Dang Gui (Angelica sinensis): Contains coumarin-like compounds and may potentiate the effects of warfarin. Patients on warfarin should have their INR monitored more closely if taking this formula.

General note: The formula's Yin-nourishing, cooling nature may theoretically interact with immunosuppressants or drugs metabolized heavily through the liver. Patients on complex medication regimens should consult both their prescribing physician and a qualified TCM practitioner before using this formula.

Usage Guidance

Practical advice for getting the most out of Yi Guan Jian

Best time to take

30 minutes to 1 hour after meals, twice daily (morning and evening), to reduce the risk of stomach upset from the cool, Yin-nourishing herbs.

Typical duration

Typically taken for 2 to 8 weeks, with reassessment by a practitioner. Chronic conditions may require longer courses with periodic breaks.

Dietary advice

Avoid spicy, hot, greasy, and fried foods, which can generate Heat and further deplete Yin. Alcohol should be avoided as it produces Damp-Heat and stresses the Liver. Favor foods that nourish Yin and moisten dryness: pears, lily bulbs, black sesame, walnuts, mulberries, congee, and lightly cooked vegetables. Sour-flavored foods like small amounts of vinegar or hawthorn can gently support the Liver. Avoid excessive consumption of raw, cold foods, as the formula is already cool in nature and the Spleen should not be burdened. Coffee and strong tea should be minimized, as they can aggravate irritability and deplete fluids.

Yi Guan Jian originates from Xù Míng Yī Lèi Àn (《续名医类案》Continuation of Famous Physicians' Cases Organized by Categories), Volume 18, by Wèi Zhīxiù (魏之琇) Qīng dynasty, 1770 CE

Classical Texts

Key passages from the classical Chinese medical texts that first described Yi Guan Jian and its clinical use

Wei Zhixiu (魏之琇), Xu Ming Yi Lei An (续名医类案):
Original indication: the formula "可统治胁痛、吞酸、吐酸、疝瘕一切肝病" — it "can comprehensively treat rib pain, acid swallowing, acid vomiting, hernial disorders, abdominal masses, and all manner of Liver diseases."

Zhang Shanlei (张山雷), Zhong Feng Jiao Quan (中风斠诠), Volume 3:
"柳洲此方,虽从固本丸、集灵膏二方脱化而来,独加一味川楝,以调肝气之横逆,顺其条达之性,是为涵养肝阴第一良药。" — "This formula of [Wei] Liuzhou, though derived from Gu Ben Wan and Ji Ling Gao, uniquely adds a single ingredient, Chuan Lian Zi, to regulate the Liver Qi's rebellious movement and restore its nature of smooth, free-flowing expression. It is the foremost excellent remedy for nourishing Liver Yin."

Zhang Shanlei continued:
"若脉虚舌燥,津液已伤者,则行气之药,尤为鸩毒。" — "If the pulse is deficient and the tongue is dry, and the body's fluids have already been damaged, then Qi-moving [acrid, drying] herbs become nothing less than poison."

On the formula's name, from Yi Fang Jie Du (医方絜度):
"取五脏有相生循环之妙,而一方贯之也" — "It captures the marvel of the five organs' mutual generation and cyclical nourishment, threaded together by a single formula."

Historical Context

How Yi Guan Jian evolved over the centuries — its origins, lineage, and place in the broader tradition of Chinese medicine

Yi Guan Jian was created by the Qing dynasty physician Wei Zhixiu (魏之琇, 1722–1772), who used the courtesy name Yuhuang (玉璜) and the literary name Liuzhou (柳洲). Wei came from a hereditary medical family in Qiantang (modern Hangzhou, Zhejiang). Orphaned young and impoverished, he supported himself through manual labor while studying his family's medical texts by night, eventually becoming one of the most respected physicians of his era.

The formula first appeared in Wei's monumental work Xu Ming Yi Lei An (续名医类案, "Supplement to the Classified Medical Records of Famous Physicians"), completed around 1770. This text was a continuation of the Ming dynasty work Ming Yi Lei An by Jiang Guan. Notably, the original text did not specify dosages for the formula; these were later established in the Yi Fang Jie Du (医方絜度). The later scholar Zhang Shanlei (张山雷) observed that Wei drew upon two older formulas, Gu Ben Wan (固本丸) and Ji Ling Gao (集灵膏), as his conceptual foundation, but innovated by adding a single herb, Chuan Lian Zi, to gently move Liver Qi within the Yin-nourishing framework. Zhang praised it as "the foremost excellent remedy for nourishing Liver Yin" and "a uniquely creative departure among Yin-nourishing formulas, not to be compared with Liu Wei Di Huang in the same breath." Yi Guan Jian has since been included in the first batch of the Chinese government's Catalogue of Classical TCM Prescriptions (古代经典名方目录).

Modern Research

4 published studies investigating the pharmacological effects or clinical outcomes of Yi Guan Jian

1

Comprehensive Review of Yiguan Jian: Phytochemistry, Quality Control, Clinical Applications, Pharmacology, and Safety (Review, 2023)

Lu C, Zhang S, Lei SS, Wang D, Peng B, Shi R, Chong CM, Zhong Z, Wang Y. Journal of Ethnopharmacology, 2024, Volume 319, 117151.

A comprehensive review summarizing the chemical profiles, quality control methods, clinical reports, and pharmacological research on Yi Guan Jian. The review confirmed the formula's demonstrated ability to manage digestive and hepatic diseases through hepatoprotective, anti-inflammatory, anti-oxidative, anti-tumor, and anti-diabetic mechanisms. It also noted that Chuan Lian Zi requires toxicity monitoring due to its slight toxicity classification.

PubMed
2

Active Ingredients and Action Mechanisms of Yi Guan Jian Decoction in Chronic Hepatitis B Patients with Liver Fibrosis (Network Pharmacology + In Vitro Study, 2019)

Li G, Zhou Y, Sze DM, Liu C, Zhang Q, Wang Z, Yu H, Chan G, Wu Z, Su S, Hu Y. Evidence-Based Complementary and Alternative Medicine, 2019, Volume 2019, Article 2408126.

Using data mining, network analysis, and in vitro validation, this study identified potential active ingredients in Yi Guan Jian and proposed mechanisms of action for treating liver fibrosis in chronic hepatitis B patients. The research demonstrated that the formula's compounds interact with fibrosis-related targets in hepatic stellate cells.

PubMed
3

Hepatoprotective Effects of Yi Guan Jian in Rats with DMN-Induced Liver Fibrosis (Preclinical Animal Study, 2011)

Lin HJ, Chen JY, Lin CF, Liang HF, Hung YC, Chen YQ, Lin CH, Huang CC. Journal of Ethnopharmacology, 2011, Volume 134(3), Pages 953-960.

In a rat model of dimethylnitrosamine-induced liver fibrosis, oral administration of Yi Guan Jian significantly prevented body weight loss, reduced liver damage markers (GOT, GPT), and decreased expression of fibrosis-related proteins (collagen alpha-1, TIMP-1, alpha-SMA). The authors concluded that Yi Guan Jian showed hepatoprotective and anti-fibrogenic effects.

PubMed
4

Modified Yi Guan Jian Induces Apoptosis in Hepatic Stellate Cells through an ROS-Mediated Mitochondrial/Caspase Pathway (Preclinical In Vitro Study, 2011)

Lin HJ, Tseng CP, Lin CF, Liao MH, Chen CM, Kao ST, Cheng JC. Evidence-Based Complementary and Alternative Medicine, 2011, Volume 2011, Article 652397.

This study found that a modified Yi Guan Jian formula induced apoptosis (programmed cell death) in activated hepatic stellate cells, the key cells responsible for liver scarring. The mechanism involved generation of reactive oxygen species and activation of the mitochondrial apoptosis pathway, providing a scientific rationale for the formula's traditional anti-fibrotic use.

PubMed

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.