In Traditional Chinese Medicine, bloating is not one condition — it is a sign of how well (or poorly) your digestive qi is moving. When the Spleen and Stomach are too weak to transform food and push qi downward, food sits, gas accumulates, and the belly feels full and distended. The classical answer for this "weak digestion" type of bloating — spleen-stomach deficiency with qi stagnation (脾虚气滞) — is Xiang Sha Liu Jun Zi Tang (香砂六君子汤), a formula built on one of the most famous digestive prescriptions in the Chinese canon.
- TCM treats bloating by pattern, not symptom — the textbook lists seven distinct types of fullness (pi man, 痞满).
- Spleen-stomach deficiency is the "weak digestion" type: bloating after meals, poor appetite, loose stools, fatigue.
- Xiang Sha Liu Jun Zi Tang (香砂六君子汤) is its classical formula, built on Liu Jun Zi Tang (六君子汤) from Yixue Zhengzhuan (Ming dynasty).
- Xiang Sha Liu Jun Zi Wan is sold in the West as a herbal supplement — used traditionally, not as a treatment for a diagnosed disorder.
🧪 What the Science Says
Modern research has begun to test the classical digestive formulas. A 2021 meta-analysis of randomized controlled trials in BMC Complementary Medicine and Therapies (PMID 33407405) evaluated Si Jun Zi Tang (四君子汤, "Four Gentlemen Decoction") — the core formula at the heart of Xiang Sha Liu Jun Zi Tang — for functional dyspepsia, finding it was associated with improved dyspepsia symptoms and gastric emptying compared to prokinetic agents. A separate 2021 network meta-analysis in Chinese Medicine (PMID 34930390) reviewed 47 trials across multiple Chinese herbal formulas for functional dyspepsia and found the formulas as a class performed favorably against prokinetics.
Importantly, these studies frame herbal formulas as supportive — "associated with," "may support" — not as proven cures. That is the same framing this article uses.
Bloating in TCM: Seven Patterns, Not One
The textbook Chinese Internal Medicine (中医内科学) classifies fullness and bloating (pi man, 痞满) into seven patterns — five "excess" types caused by something blocking the middle, and two "deficiency" types caused by the digestive organs being too weak. Each has a distinct signature and a distinct formula:
| Pattern (证型) | Typical signs | Classical formula |
|---|---|---|
| External cold with internal stagnation (外寒内滞) | Fullness after catching cold, aversion to cold, abdominal pain | Xiang Su San (香苏散) |
| Food stagnation (饮食内停) | Bloating after overeating, sour belching, foul breath | Bao He Wan (保和丸) |
| Phlegm-dampness in the middle (痰湿中阻) | Heaviness, nausea, greasy tongue coating | Er Chen Ping Wei San (二陈平胃散) |
| Mixed cold and heat (寒热错杂) | Fullness with both chills and heat signs, discomfort after meals | Ban Xia Xie Xin Tang (半夏泻心汤) |
| Liver qi stagnation (肝郁气滞) | Bloating tied to stress and mood, sighing, distension in the flanks | Yue Ju Wan + Zhi Zhu Wan (越鞠丸合枳术丸) |
| Spleen-Stomach Deficiency (脾胃虚弱) | Bloating after meals, poor appetite, loose stools, fatigue | Xiang Sha Liu Jun Zi Tang (香砂六君子汤) |
| Stomach yin deficiency (胃阴不足) | Fullness with dry mouth, little appetite, thirst | Yi Wei Tang (益胃汤) |
The reason the pattern matters is that the wrong formula does nothing useful — and can make things worse. A person with food stagnation given a tonifying formula like Xiang Sha Liu Jun Zi Tang would feel heavier, not lighter. Pattern differentiation is the whole game.
Recognizing Spleen-Stomach Deficiency
This pattern is classically described as the bloating of the under-fueled digestive system. The teaching is that poor diet, overwork, and prolonged worry weaken the Spleen — which in TCM is the organ system responsible for transforming food into qi and blood and for moving that qi in the right direction. When the Spleen is weak, qi fails to descend, and the middle fills with stagnant qi and dampness: a distended belly that worsens after even a modest meal.
The typical picture includes:
- Bloating and fullness, especially after eating
- Poor appetite — feeling full after only a few bites
- Loose or soft stools
- Belching and a dull heaviness in the upper belly
- Daytime fatigue and low energy
The treatment principle is summed up in eight characters: jian pi yi qi (健脾益气), "strengthen the Spleen and boost qi," paired with li qi hua shi (理气化湿), "regulate qi and transform dampness."
Xiang Sha Liu Jun Zi Tang: The Formula That Moves a Stalled Middle
Xiang Sha Liu Jun Zi Tang (香砂六君子汤, "Aucklandia & Amomum Six Gentlemen Decoction") is the formula named for this pattern. It is built on Liu Jun Zi Tang (六君子汤, "Six Gentlemen Decoction"), which is recorded in Yu Tuan's Yixue Zhengzhuan (医学正传, "Orthodox Lineage of Medicine"), a Ming-dynasty text. The Six Gentlemen are themselves an expansion of the famous "Four Gentlemen" (四君子汤) — ginseng, atractylodes, poria, and licorice — with the addition of tangerine peel (陈皮) and pinellia (半夏) to regulate qi and dry dampness.
"脾虚则运化无力，气机壅滞… — When the Spleen is deficient, transformation is weak and the movement of qi stagnates."
— the classical rationale behind Xiang Sha Liu Jun Zi Tang, rooted in the Six Gentlemen tradition of the Yixue Zhengzhuan
What makes this version specifically anti-bloating are the two herbs that give the formula its name — xiang (香) for mu xiang (木香, aucklandia root) and sha (砂) for sha ren (砂仁, amomum fruit). Both are warm, aromatic herbs that move qi and transform dampness — precisely the "unblocking" action a stagnant, damp middle needs. The full formula pairs these qi-movers with the qi-and-dampness tonics of the Six Gentlemen: ginseng, atractylodes, poria, licorice, tangerine peel, and pinellia.
⚠️ Safety Note
Xiang Sha Liu Jun Zi Wan is a herbal supplement, not a medicine, and this article is educational — not medical advice and not a treatment for any condition. It is not a substitute for evaluating or treating a diagnosed digestive disorder with a qualified professional.
The herbs in this formula can interact with medications — licorice (甘草) in particular can affect blood pressure and potassium levels, and the formula may interact with blood-sugar or blood-thinning medications. If you are pregnant, nursing, taking medication, or managing a chronic condition, talk to your healthcare provider before use. Follow the product's own suggested use on its label rather than any dose mentioned elsewhere.
A note on processing: the pinellia (半夏) used in properly manufactured versions of this formula is processed to remove its raw toxicity — one more reason to choose a reputable supplier and follow the label. Read our full disclaimer.
Xiang Sha Liu Jun Zi Wan as a Supplement
In the West, Xiang Sha Liu Jun Zi Wan is available as a herbal supplement in teapill, tablet, capsule, or granule form from established suppliers of traditional formulas. Because it has been made for decades and is one of the most recognizable digestive formulas, there are many brands — which also means quality and formulation vary, so it is worth choosing a supplier you trust.
🛒 Xiang Sha Liu Jun Zi Pian (Six Gentlemen Plus) — a well-established option
$15.49
Guang Ci Tang · Stomakinder · 200 mg × 200 tablets
A traditional xiang sha liu jun zi tablet formulation, sold as a herbal supplement. Always follow the label's suggested use, and check with a healthcare provider if you take medication or have a medical condition.
View on Chinese Herbs Direct →Disclosure: This is an affiliate link. If you click and make a purchase, Tcmplate may earn a commission at no extra cost to you. This does not influence which formulas are recommended — selections are based on classical TCM sources and pattern differentiation, not commission rates.
Other established brands also offer Xiang Sha Liu Jun Zi Wan or Xiang Sha Liu Jun Zi Tang, including Plum Flower, Min Shan, and Solstice — useful if you prefer a particular supplier or a different format (teapills, capsules, granules, or liquid extract).
Frequently Asked Questions
What is Xiang Sha Liu Jun Zi Wan (香砂六君子丸)?
Xiang Sha Liu Jun Zi Wan ("Aucklandia & Amomum Six Gentlemen Pill") is a classical Chinese herbal formula, based on Liu Jun Zi Tang, traditionally used in Chinese medicine to strengthen the Spleen and Stomach, move stagnant qi, and transform dampness. Its base formula, Liu Jun Zi Tang, is recorded in Yu Tuan's Yixue Zhengzhuan (Ming dynasty), and it is sold in the West as a herbal supplement, not a drug.
What is spleen-stomach deficiency with qi stagnation in TCM?
Spleen-stomach deficiency with qi stagnation (脾虚气滞) is a pattern in which the Spleen and Stomach are too weak to transform food and move qi, so qi stagnates and dampness accumulates in the middle. The classical picture is post-meal bloating and fullness, poor appetite, belching, loose stools, and fatigue.
Is Xiang Sha Liu Jun Zi Wan safe to take?
Xiang Sha Liu Jun Zi Wan is generally sold as a herbal supplement and should be used according to the label's suggested use. Its herbs can interact with medications, so consult a qualified healthcare provider if you are pregnant, nursing, taking medication, or managing a chronic condition. It is not a substitute for treating a diagnosed digestive disorder, and it does not contain the mineral cinnabar.
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