Xiang Fu Li Zhong Wan Tang

Cyperus Regulate the Middle Pill Decoction · 香附理中丸湯

Also known as: Xiang Fu Li Zhong Tang, Cyperus and Ginseng Combination to Regulate the Middle

A classical formula that warms and strengthens the digestive system while relieving pain and bloating caused by cold and stagnation in the Spleen and Stomach. It combines the warming, Qi-tonifying action of Li Zhong Wan with the Qi-moving, pain-relieving properties of Xiang Fu, making it especially suited for people with both weak, cold digestion and cramping abdominal discomfort.

Origin Tai Ping Hui Min He Ji Ju Fang (太平惠民和剂局方) — Sòng dynasty, 1078 CE
Composition 5 herbs
Gan Jiang
King
Gan Jiang
Ren Shen
Deputy
Ren Shen
Bai Zhu
Assistant
Bai Zhu
Xiang Fu
Assistant
Xiang Fu
Gan Cao
Envoy
Gan Cao
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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. Xiang Fu Li Zhong Wan Tang is designed to correct these specific patterns.

Why Xiang Fu Li Zhong Wan Tang addresses this pattern

This is the primary pattern addressed by the formula. When the Spleen and Stomach lack sufficient Yang warmth, the Middle Burner becomes cold, and the vital functions of transformation and transportation break down. Food and fluids cannot be properly processed, leading to loose stools, poor appetite, nausea, and a general feeling of cold in the abdomen. Gan Jiang warms the Spleen Yang directly, Ren Shen replenishes the depleted Qi, Bai Zhu dries the resulting Dampness, and Zhi Gan Cao harmonizes and supports the Middle Burner. The addition of Xiang Fu addresses the Qi stagnation that commonly accompanies this pattern when Cold causes the Qi to congeal, producing pain.

A practitioner would look for one or more of these signs

Abdominal Cold Sensation

Cold sensation in the epigastrium and abdomen, relieved by warmth

Abdominal Pain

Cramping or dull abdominal pain, better with warmth and pressure

Diarrhea

Loose stools or watery diarrhea with undigested food

Poor Appetite

Reduced appetite and inability to eat much

Nausea

Nausea or vomiting of clear fluid

Cold Limbs

Cold hands and feet

Abdominal Distention

Bloating and fullness in the epigastric region

Commonly Prescribed For

These conditions can arise from the patterns above. A practitioner would consider Xiang Fu Li Zhong Wan Tang when these conditions are specifically caused by those patterns — not for all cases of these conditions.

Arises from: Spleen and Stomach Qi Deficiency Cold Stagnation in the Middle Burner

TCM Interpretation

TCM understands chronic gastritis primarily as a disorder of the Spleen and Stomach. When the Spleen Yang is weak and Cold accumulates in the Middle Burner, the Stomach loses its ability to properly 'ripen and rot' food. The lining of the Stomach, in TCM terms, lacks the warmth needed to function. Cold causes Qi to stagnate, leading to pain, fullness, and poor appetite. Over time, ongoing Cold and deficiency impair the Spleen's transforming function, allowing Dampness to accumulate, which further disrupts digestion.

Why Xiang Fu Li Zhong Wan Tang Helps

Xiang Fu Li Zhong Wan Tang addresses chronic gastritis by warming the Spleen and Stomach with Gan Jiang (Dry Ginger), restoring digestive Qi with Ren Shen (Ginseng), and drying accumulated Dampness with Bai Zhu (Atractylodes). Crucially, Xiang Fu (Cyperus) moves the stagnant Qi that causes the characteristic epigastric pain and distension. This combination makes the formula particularly effective for the cold, painful type of chronic gastritis where patients feel relief from warmth applied to the stomach area.

Also commonly used for

Peptic Ulcer

Gastric or duodenal ulcer with cold-type pain

Chronic Diarrhea

Due to Spleen-Stomach deficiency Cold

Dyspepsia

With bloating, poor appetite, and cold sensations

Gastroptosis

Stomach prolapse due to Spleen Qi deficiency with Cold

Nausea Or Vomiting

From Spleen-Stomach deficiency Cold with Qi stagnation

What This Formula Does

Every TCM formula has a specific set of actions — here's what Xiang Fu Li Zhong Wan Tang does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, Xiang Fu Li Zhong Wan Tang is primarily used to support these areas of health:

TCM Actions

In TCM terminology, these are the specific therapeutic actions that Xiang Fu Li Zhong Wan 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 Xiang Fu Li Zhong Wan Tang works at the root level.

This formula addresses a pattern where the Spleen and Stomach are weakened by internal Cold, and this deficiency-cold condition is further complicated by Qi stagnation. In a healthy body, the Spleen transforms food and drink into usable nourishment, while the Stomach receives and "ripens" what is eaten. Both organs depend on warmth to function properly, much like a cooking pot needs fire underneath it.

When Cold invades or accumulates in the Middle Burner (the digestive center), the Spleen's warming and transporting functions falter. Food sits undigested, producing bloating and fullness. The body's Qi, deprived of its source of nourishment, becomes weak. Cold causes contraction and slowing, leading to abdominal pain that feels better with warmth and pressure, loose stools or diarrhea, cold limbs, and a lack of thirst. When Qi stagnation is layered on top of this (often from emotional stress or the Liver overacting on the already-weakened Spleen), the symptoms take on an additional dimension: distending pain rather than just dull aching, a sense of fullness in the chest and epigastrium, belching, and sighing. The Qi wants to move but is both too weak and too obstructed to flow freely.

The formula works by simultaneously restoring warmth and strength to the Middle Burner while actively moving stagnant Qi. Without the Qi-regulating component, purely warming and tonifying the Spleen might create further stagnation in someone whose Qi flow is already impaired. Xiang Fu's aromatic, dispersing quality ensures that the tonic and warming herbs can do their work without clogging the system.

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

Warm

Taste Profile

Predominantly acrid and sweet with mild bitterness — acrid to warm and disperse Cold, sweet to tonify and nourish the Spleen, and slightly bitter to direct Qi downward and relieve stagnation.

Channels Entered

Ingredients

5 herbs

The herbs that make up Xiang Fu Li Zhong Wan 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
Gan Jiang

Gan Jiang

Dried ginger

Dosage 6 - 9g
Temperature Hot
Taste Pungent
Organ Affinity Heart, Kidneys, Lungs, Stomach

Role in Xiang Fu Li Zhong Wan Tang

The chief warming herb in this formula. Gan Jiang is acrid and hot, entering the Spleen and Stomach channels to powerfully warm the Middle Burner, dispel interior Cold, and restore the Yang of the Spleen. It directly addresses the core pathomechanism of Cold accumulation in the Middle Burner that impairs digestive function.
Deputy — Assists and enhances the King
Ren Shen

Ren Shen

Ginseng

Dosage 6 - 9g
Temperature Warm
Taste Bitter, Sweet
Organ Affinity Heart, Lungs, Spleen

Role in Xiang Fu Li Zhong Wan Tang

Strongly tonifies the Qi of the Spleen and Stomach, reinforcing the body's foundational digestive capacity. It supports Gan Jiang by ensuring the Spleen has sufficient Qi to resume its transforming and transporting functions once Cold is dispelled. In modern formulations, Dang Shen (Codonopsis) is often substituted.
Assistants — Supports or moderates other herbs
Bai Zhu

Bai Zhu

Atractylodes rhizomes

Dosage 6 - 9g
Temperature Warm
Taste Bitter, Sweet
Organ Affinity Spleen, Stomach

Role in Xiang Fu Li Zhong Wan Tang

Strengthens the Spleen and dries Dampness. When the Spleen Yang is deficient and Cold predominates, Dampness accumulates because the Spleen loses its ability to transform and transport fluids. Bai Zhu assists both King and Deputy by supporting Spleen function from the perspective of Dampness resolution.
Xiang Fu

Xiang Fu

Coco-grass rhizomes

Dosage 6 - 9g
Temperature Neutral
Taste Bitter, Pungent, Sweet
Organ Affinity Liver, Spleen, San Jiao (Triple Burner)

Role in Xiang Fu Li Zhong Wan Tang

The distinguishing herb that differentiates this formula from standard Li Zhong Wan. Xiang Fu is acrid, slightly bitter, and neutral, entering the Liver and Triple Burner channels. It is one of the premier Qi-regulating herbs in TCM, especially effective for relieving pain caused by Qi stagnation. It smooths the flow of Liver Qi, alleviates epigastric and abdominal distension, and addresses pain from Cold-induced Qi stagnation that the base formula alone cannot fully resolve.
Envoy — Directs the formula to its target
Gan Cao

Gan Cao

Liquorice

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

Role in Xiang Fu Li Zhong Wan Tang

Tonifies the Spleen, harmonizes the Middle Burner, moderates urgency and relieves abdominal cramping pain. As the Envoy, it harmonizes all the other herbs in the formula, ensuring they work together smoothly. Its sweet, warm nature supplements the Spleen Qi while buffering the more pungent herbs.

Why This Combination Works

How the herbs in Xiang Fu Li Zhong Wan Tang complement each other

Overall strategy

This formula addresses Spleen-Stomach deficiency Cold complicated by Qi stagnation. The base Li Zhong Wan warms and tonifies the Middle Burner, while the addition of Xiang Fu moves stagnant Qi and alleviates pain, making it suitable for cases where Cold in the Spleen not only impairs digestion but also causes the Qi to congeal and stagnate, leading to cramping pain and distension.

King herbs

Gan Jiang (Dry Ginger) serves as King because it directly targets the root problem: Cold lodged in the Middle Burner. Its acrid, hot nature powerfully warms the Spleen and Stomach, disperses accumulated Cold, and restores the Yang warmth necessary for proper digestive function. In cases where Cold predominates, the dosage of Gan Jiang is increased accordingly.

Deputy herbs

Ren Shen (Ginseng) acts as Deputy, powerfully tonifying the Qi of the Spleen. While Gan Jiang expels Cold, Ren Shen rebuilds the underlying deficiency that allowed Cold to take hold. Together, they restore both the warmth and the functional capacity of the digestive system. This pairing of warming and tonifying is the essential therapeutic strategy of the formula.

Assistant herbs

Bai Zhu (White Atractylodes) is a reinforcing assistant that strengthens the Spleen and dries Dampness. When Spleen Yang is deficient, fluid metabolism falters and Dampness collects. Bai Zhu addresses this secondary pathology. Xiang Fu (Cyperus) is also an assistant but serves a different function: it moves Qi and relieves pain. Cold causes contraction and stagnation. When Qi cannot flow freely through the abdomen, pain and distension result. Xiang Fu's ability to regulate Qi flow and soothe the Liver prevents the formula from being purely warming without addressing the stagnation component.

Envoy herbs

Zhi Gan Cao (Honey-Prepared Licorice) harmonizes the formula, tonifies the Spleen, and moderates the pungent nature of Gan Jiang. Its sweet flavor relaxes spasm and helps relieve cramping abdominal pain.

Notable synergies

The pairing of Gan Jiang and Ren Shen is the classical core of Li Zhong Wan: one warms while the other tonifies, addressing both the Cold and the deficiency simultaneously. The addition of Xiang Fu creates a second important synergy with Gan Jiang: Gan Jiang warms and disperses Cold that causes Qi to congeal, while Xiang Fu actively moves the stagnant Qi, making pain relief more rapid and thorough than either herb could achieve alone. The combination of Bai Zhu with Gan Jiang ensures that Dampness from impaired Spleen function is addressed alongside Cold.

How to Prepare

Traditional preparation instructions for Xiang Fu Li Zhong Wan Tang

Grind the ingredients of the original pill formula into a coarse powder. Take approximately 9-12g of the powder per dose and decoct in approximately 300-400ml of water. Bring to a boil, then simmer on low heat until the liquid reduces to about 200ml. Strain and take warm, on an empty stomach or before meals, twice daily.

Alternatively, the traditional preparation involves forming the powdered herbs into honey pills and then dissolving 1-2 pills in hot water for consumption. The decoction (Tang) form is preferred clinically when a faster onset of action is needed compared to the pill (Wan) form.

Common Modifications

How practitioners adapt Xiang Fu Li Zhong Wan Tang for specific situations

Added
Lai Fu Zi

Pao Fu Zi (Prepared Aconite), 3-6g, to powerfully warm Yang and dispel deep Cold

When Cold is severe and Yang deficiency is pronounced, adding Fu Zi greatly strengthens the formula's warming capacity. This modification approaches the territory of Fu Zi Li Zhong Wan but retains Xiang Fu for its Qi-moving benefit.

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

Contraindications

Situations where Xiang Fu Li Zhong Wan Tang should not be used or requires extra caution

Avoid

Yin Deficiency with Heat signs (dry mouth, night sweats, red tongue with little coating). The warming and drying nature of this formula would further damage Yin fluids.

Avoid

Damp-Heat accumulation in the Middle Burner (yellow greasy tongue coating, bitter taste, burning epigastric pain). Warming herbs would worsen the Heat component.

Avoid

Excess Heat patterns or true Heat with false Cold. The warm-hot herbs (especially Gan Jiang) would intensify Heat.

Caution

Exterior pathogen invasion with fever. The tonic and warming nature of this formula may trap the pathogen inside. Resolve the exterior condition first before using interior-warming formulas.

Caution

Patients with hypertension or those prone to excessive internal Heat. The warming herbs may temporarily elevate blood pressure or aggravate Heat-related symptoms. Use with caution and monitoring.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

Use with caution during pregnancy. Gan Jiang (dried Ginger) is a strongly warming herb that, in large doses, may generate excessive internal Heat. Xiang Fu (Cyperus) is a potent Qi-moving herb that could theoretically stimulate uterine activity, though pharmacological studies actually show Xiang Fu extract has a relaxing effect on uterine smooth muscle. Nevertheless, the overall strongly warming nature of this formula means it should only be used during pregnancy under direct supervision of a qualified practitioner, and only when a clear Spleen-Stomach deficiency-cold pattern is confirmed.

Breastfeeding

Generally considered compatible with breastfeeding when used at standard therapeutic doses for a confirmed Spleen-Stomach deficiency-cold pattern with Qi stagnation. The herbs in this formula are not known to produce toxic metabolites that transfer significantly into breast milk. However, the warming nature of the formula could theoretically affect milk composition or the nursing infant's digestion (potentially causing mild Heat signs in the infant such as fussiness or loose stools). A practitioner should monitor both mother and infant during use. Gan Cao (Licorice) in the formula may have mild hormonal effects at high doses, so standard dosing should not be exceeded.

Children

Li Zhong Wan and its variants have historical precedent for pediatric use, particularly for chronic infantile diarrhea due to Spleen-Stomach deficiency-cold. Dosage should be significantly reduced based on age and body weight: roughly one-quarter to one-third of the adult dose for children aged 3-6, and one-half for children aged 7-12. For very young children (under 3), this formula should only be used under close practitioner supervision. The warming and drying nature of the formula requires careful monitoring to avoid generating Heat or damaging fluids in children, who tend to have more delicate constitutions. The pill form (wan) is traditionally preferred for gentler, sustained action in pediatric cases.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with Xiang Fu Li Zhong Wan Tang

Gan Cao (Licorice) interactions: Gan Cao contains glycyrrhizin, which can cause potassium loss and sodium/water retention. It may interact with diuretics (increased risk of hypokalemia), cardiac glycosides such as digoxin (hypokalemia increases digoxin toxicity), corticosteroids (additive mineralocorticoid effects), and antihypertensive medications (may counteract their blood-pressure-lowering effects). Patients on any of these drugs should inform their prescribing physician.

Ren Shen (Ginseng) interactions: Ren Shen may interact with anticoagulants/antiplatelet agents such as warfarin (may alter clotting parameters), hypoglycemic agents and insulin (may enhance blood sugar lowering effects, requiring dose adjustment), and MAO inhibitors (potential for overstimulation). Concurrent use with these medications requires monitoring.

General note: As a warming formula, it may alter gastrointestinal absorption rates of concurrently administered medications. It is advisable to take this formula and any pharmaceutical drugs at least 1-2 hours apart.

Usage Guidance

Practical advice for getting the most out of Xiang Fu Li Zhong Wan Tang

Best time to take

30 minutes before meals, taken warm (dissolve pills in warm water or drink the decoction warm), 2-3 times daily. Taking before meals allows the warming herbs to prepare the digestive system for food intake.

Typical duration

Typically used for 1-4 weeks, with reassessment by a practitioner. Acute episodes of cold abdominal pain with stagnation may only require 3-7 days; chronic Spleen-Stomach deficiency-cold with Qi stagnation may be taken for several weeks with periodic review.

Dietary advice

Avoid cold and raw foods (salads, iced drinks, raw fruit, sashimi), dairy products, and greasy or heavy foods while taking this formula, as these can further impair the already-weakened Spleen-Stomach warming and transforming functions. Favor warm, easily digestible, cooked foods such as congee (rice porridge), soups, steamed vegetables, and warm grains. Ginger tea is a helpful complement. Avoid excessive alcohol and overly spicy food, which can generate Heat and counteract the balanced warming action. Eating at regular times and in moderate portions supports the formula's therapeutic aim of restoring Middle Burner function.

Xiang Fu Li Zhong Wan Tang originates from Tai Ping Hui Min He Ji Ju Fang (太平惠民和剂局方) Sòng dynasty, 1078 CE

Classical Texts

Key passages from the classical Chinese medical texts that first described Xiang Fu Li Zhong Wan Tang and its clinical use

The base formula Li Zhong Wan originates from Zhang Zhongjing's Shang Han Lun (Treatise on Cold Damage). Key classical passages include:

On Li Zhong Wan:
「霍乱,头痛发热,身疼痛,热多欲饮水者,五苓散主之;寒多不用水者,理中丸主之。」
"For sudden turmoil disorder with headache, fever, and body pain: if Heat predominates and the patient desires water, use Wu Ling San; if Cold predominates and the patient does not desire water, use Li Zhong Wan."

On the principle of Xiang Fu as a Qi-regulating addition:
Li Shizhen wrote in the Ben Cao Gang Mu (Comperta of Materia Medica): 「香附之气平而不寒,香而能窜,其味多辛能散,微苦能降,微甘能和……乃气病之总司,女科之主帅也。」
"The nature of Xiang Fu is neutral and not cold, aromatic and penetrating. Its taste is predominantly acrid and can disperse, slightly bitter and can direct downward, slightly sweet and can harmonize… It is the chief commander of Qi disorders and the leading general for gynecological conditions."

Historical Context

How Xiang Fu Li Zhong Wan Tang evolved over the centuries — its origins, lineage, and place in the broader tradition of Chinese medicine

Xiang Fu Li Zhong Wan Tang is a modification of Li Zhong Wan, one of the most foundational formulas in Chinese medicine. Li Zhong Wan (also known as Ren Shen Tang when prepared as a decoction) was created by Zhang Zhongjing in the Shang Han Lun during the late Eastern Han dynasty (circa 200 CE). The name "Li Zhong" literally means "regulate the middle," reflecting its core purpose of restoring order to a disordered digestive system afflicted by Cold.

Over the centuries, Li Zhong Wan became a parent formula for an entire family of variants. The addition of Fu Zi created Fu Zi Li Zhong Wan for more severe Yang deficiency; the addition of Zhi Shi created Zhi Shi Li Zhong Wan for cases with food stagnation. The addition of Xiang Fu addresses a common clinical scenario where Spleen-Stomach deficiency-cold is intertwined with Liver Qi stagnation and Qi obstruction. This reflects the classical understanding that the Liver can "overact" on a weakened Spleen (a Wood-Earth dynamic in Five Phase theory), and that simply warming and tonifying without moving Qi may not resolve the patient's distending pain and emotional component.

The choice of Xiang Fu as the modifying herb is deeply rooted in its classical reputation. Li Shizhen praised it as the "chief commander of all Qi disorders" in the Ben Cao Gang Mu, and its neutral thermal nature makes it suitable for addition to both warming and cooling formulas without disrupting the overall temperature balance.