Fu Ling Gui Zhi Gan Cao Da Zao Tang

Poria, Cinnamon Twig, Licorice, and Jujube Decoction · 茯苓桂枝甘草大枣汤

Also known as: Líng Guì Zǎo Gān Tāng (苓桂枣甘汤)

A classical formula from the Shang Han Lun designed for people who experience a distinctive throbbing or fluttering sensation below the navel, often with anxiety and a feeling of something surging upward from the abdomen toward the chest. It works by warming the Heart, strengthening digestion, and helping the body drain excess fluid accumulation from the lower abdomen through urination.

Origin Shang Han Lun (伤寒论) by Zhang Zhongjing, Clause 65; also appears in Jin Gui Yao Lue (金匮要略), Ben Tun Qi chapter — Eastern Han dynasty (东汉), circa 200 CE
Composition 4 herbs
Fu Ling
King
Fu Ling
Gui Zhi
Deputy
Gui Zhi
Da Zao
Assistant
Da Zao
Gan Cao
Envoy
Gan Cao
Explore composition

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. Fu Ling Gui Zhi Gan Cao Da Zao Tang is designed to correct these specific patterns.

Why Fu Ling Gui Zhi Gan Cao Da Zao Tang addresses this pattern

This formula directly addresses Heart Yang deficiency caused by excessive sweating. The Heart's Yang Qi, which normally governs from above and keeps the Kidney's cold water in check, has been depleted. Gui Zhi and Zhi Gan Cao work together as a sweet-acrid pair to warm and restore Heart Yang, while Fu Ling calms the heart spirit and addresses the palpitations that arise when the Heart loses its governing power. Da Zao nourishes the middle burner to support the generation of Qi and Blood that sustains the Heart.

A practitioner would look for one or more of these signs

Palpitations

Throbbing or fluttering sensation below the navel (脐下悸)

Anxiety

Sense of panic or impending doom from surging Qi

Fatigue

Exhaustion and weakness following excessive sweating

Commonly Prescribed For

These conditions can arise from the patterns above. A practitioner would consider Fu Ling Gui Zhi Gan Cao Da Zao Tang when these conditions are specifically caused by those patterns — not for all cases of these conditions.

TCM Interpretation

In TCM, palpitations are not always caused by the Heart itself being diseased. In this formula's context, palpitations arise because pathological water has accumulated in the lower abdomen and disturbs the Heart spirit from below. The Heart Yang, weakened by excessive sweating or overexertion, can no longer maintain its calming authority. The resulting sub-umbilical throbbing is a distinctive type of palpitation located below the navel rather than in the chest, caused by stirring water rather than Blood stagnation or Yin deficiency.

Why Fu Ling Gui Zhi Gan Cao Da Zao Tang Helps

Fu Ling, used in a very heavy dose, directly drains the accumulated water that is the material basis of the palpitations, while also calming the Heart spirit. Gui Zhi restores Heart Yang, giving the Heart back its governing power to suppress the disturbing water below. Da Zao and Zhi Gan Cao rebuild the middle burner's strength so that the Spleen can properly transport fluids and prevent re-accumulation. The combined effect addresses both the root (weak Yang, strong Water) and the branch (palpitation and anxiety).

Also commonly used for

Neuroses

Addresses paroxysmal episodes of panic with abdominal surging

Abdominal Distention

Drains lower burner water accumulation causing sub-umbilical fullness

Abdominal Pain

Warms cold water stagnation causing lower abdominal cramping

Difficult Urination

Promotes urination by warming Yang and draining Dampness

Edema

Resolves fluid retention from Heart Yang deficiency

Nausea And Vomiting

Settles rebellious Qi from water accumulation disturbing the Stomach

What This Formula Does

Every TCM formula has a specific set of actions — here's what Fu Ling Gui Zhi Gan Cao Da Zao Tang does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, Fu Ling Gui Zhi Gan Cao Da Zao Tang is primarily used to support these areas of health:

TCM Actions

In TCM terminology, these are the specific therapeutic actions that Fu Ling Gui Zhi Gan Cao Da Zao 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 Fu Ling Gui Zhi Gan Cao Da Zao Tang works at the root level.

This formula addresses a specific situation where excessive sweating has damaged the Heart's Yang Qi. In TCM, the Heart is the "sovereign fire" that governs from above and naturally keeps the Kidney's cold water in check below. When Heart Yang is weakened by improper or excessive sweating, this governing control is lost, and the cold water Qi of the lower burner is no longer restrained.

Without Heart Yang holding it in check, this cold water begins to stir in the lower abdomen, producing a distinctive throbbing or fluttering sensation below the navel (脐下悸, qí xià jì). This is a warning sign that the water Qi is about to surge upward in what classical texts call "running piglet" (奔豚, bēn tún), a condition where a person feels a powerful rush of Qi rising from the lower abdomen toward the chest and throat, causing panic, chest tightness, and a sense of impending doom.

The root of the problem is twofold: Heart Yang is too weak to govern from above, and pathological water has accumulated in the lower burner with nowhere to go. The Spleen, which normally transforms and transports fluids, is also weakened, so it cannot fulfill its role of controlling water on behalf of the Earth element. The formula must therefore warm Heart Yang, strengthen the Spleen's water-controlling function, and drain the accumulated water downward through urination.

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 sweet and bland — sweet from Gan Cao and Da Zao to tonify Qi and nourish the Spleen, bland from Fu Ling to drain dampness and promote urination, with a mild warm pungency from Gui Zhi.

Channels Entered

Heart Kidney Spleen Bladder

Ingredients

4 herbs

The herbs that make up Fu Ling Gui Zhi Gan Cao Da Zao 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
Fu Ling

Fu Ling

Poria

Dosage 24 - 30g
Temperature Neutral
Taste Sweet (甘 gān), Bland (淡 dàn)
Organ Affinity Heart, Lungs, Spleen, Kidneys
Preparation Decocted first for approximately 15-20 minutes before adding other herbs

Role in Fu Ling Gui Zhi Gan Cao Da Zao Tang

Used in a large dose (half a jin in the original text, the heaviest herb in the formula), Fu Ling is the core herb that drains water accumulation from the lower burner, calms the Heart spirit, and strengthens the Spleen to control water. Its heavy dosage directs its action downward to address the pathological water collecting below the navel.
Deputy — Assists and enhances the King
Gui Zhi

Gui Zhi

Cinnamon twig

Dosage 12 - 15g
Temperature Warm
Taste Acrid / Pungent (辛 xīn), Sweet (甘 gān)
Organ Affinity Heart, Lungs, Urinary Bladder

Role in Fu Ling Gui Zhi Gan Cao Da Zao Tang

Warms Heart Yang and promotes the downward movement of rebellious Qi, directly counteracting the upward surging of cold water Qi (the threatening running piglet). Combined with Fu Ling, it warms Yang to transform fluids and prevents water from accumulating.
Assistant — Supports or moderates other herbs
Da Zao

Da Zao

Jujube fruit

Dosage 15 pieces
Temperature Warm
Taste Sweet (甘 gān)
Organ Affinity Spleen, Stomach, Heart
Preparation Split open (擘) before decocting

Role in Fu Ling Gui Zhi Gan Cao Da Zao Tang

Strengthens the Spleen and nourishes the middle burner to bolster Earth's ability to control Water. Also calms the spirit and addresses abdominal urgency and pain. Its sweet nature supplements the Qi damaged by excessive sweating.
Envoy — Directs the formula to its target
Gan Cao

Gan Cao

Licorice root

Dosage 6 - 9g
Temperature Neutral
Taste Sweet (甘 gān)
Organ Affinity Heart, Lungs, Spleen, Stomach
Preparation Honey-processed (炙甘草)

Role in Fu Ling Gui Zhi Gan Cao Da Zao Tang

Honey-processed (Zhi Gan Cao) to tonify the Spleen and supplement Qi. Works with Gui Zhi as a sweet-acrid pair to generate Yang Qi. Harmonizes all the herbs in the formula.

Why This Combination Works

How the herbs in Fu Ling Gui Zhi Gan Cao Da Zao Tang complement each other

Overall strategy

The formula warms Heart Yang from above while heavily draining pathological water from below, simultaneously strengthening the Spleen (Earth) to reassert control over Water. This two-pronged approach prevents cold water Qi from surging upward as running piglet.

King herbs

Fu Ling is used in a notably large dose (half a jin, about 24-30g), double the amount used in the related Ling Gui Zhu Gan Tang. This heavy dosage targets the lower burner specifically, powerfully draining accumulated water through urination. Fu Ling also calms the spirit and quiets the palpitations and anxiety associated with the surging water Qi.

Deputy herbs

Gui Zhi warms Heart Yang, restoring the sovereign fire's ability to govern and restrain the cold water below. It also has a specific action of subduing rebellious upward-surging Qi (平冲降逆), directly countering the threatening running piglet. Together with Fu Ling, it forms the classical Fu Ling-Gui Zhi pair: Fu Ling drains water while Gui Zhi warms Yang to transform it, each enhancing the other's effect.

Assistant herbs

Da Zao (15 pieces, a generous dose) is a reinforcing assistant that nourishes the Spleen and middle burner. By strengthening Earth, it enables the Spleen to reassert its natural control over Water. Da Zao also calms the spirit and eases abdominal urgency and cramping that accompany the lower abdominal pulsation.

Envoy herbs

Honey-processed Gan Cao (Zhi Gan Cao) harmonizes the formula and supports Spleen Qi. Paired with Gui Zhi, it creates the classical sweet-acrid combination (辛甘化阳) that gently generates Yang Qi, helping to rebuild what was lost through excessive sweating.

Notable synergies

The Fu Ling and Gui Zhi pairing is the formula's engine: Fu Ling cannot transform fluids without Gui Zhi's warming action, and Gui Zhi cannot expel water without Fu Ling's draining capacity. The use of sweet-turbulent water (甘澜水) as the cooking medium is itself a form of treatment: the agitated, aerated water is said to lack the heaviness that could reinforce pathological water accumulation.

How to Prepare

Traditional preparation instructions for Fu Ling Gui Zhi Gan Cao Da Zao Tang

The original Shang Han Lun instructs the use of sweet-turbulent water (甘澜水, gān lán shuǐ), also called "labor water" (劳水). To make it: take approximately 2 dou (about 4 liters in Han dynasty measures) of water, pour it into a large basin, and repeatedly scoop and pour the water back from a height using a ladle until thousands of small bubbles appear on the surface. This agitated water is believed to have reduced density and a gentler nature that does not support pathological Kidney water.

Using this sweet-turbulent water (approximately 2 liters/10 sheng in Han measures), first decoct the Fu Ling alone until the liquid reduces by about 400ml (2 sheng). Then add the remaining herbs (Gui Zhi, Zhi Gan Cao, Da Zao) and continue decocting until approximately 600ml (3 sheng) remains. Strain and discard the dregs. Take one warm dose of approximately 200ml (1 sheng), three times daily.

In modern practice, use approximately 1000ml of water. Decoct Fu Ling first for 15-20 minutes, then add the remaining herbs and decoct for another 20-25 minutes. Strain and divide into 2-3 doses per day, taken warm.

Common Modifications

How practitioners adapt Fu Ling Gui Zhi Gan Cao Da Zao Tang for specific situations

Added
Long Gu

30g, to heavily sedate and calm the spirit

Mu Li ke

30g, to anchor floating Yang and calm anxiety

Long Gu and Mu Li are heavy minerals that anchor the spirit and subdue rebellious Yang, reinforcing the formula's ability to calm the agitation caused by water Qi disturbing the Heart.

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

Contraindications

Situations where Fu Ling Gui Zhi Gan Cao Da Zao Tang should not be used or requires extra caution

Avoid

Yin deficiency with Heat signs (night sweats, dry mouth, red tongue with little coating, rapid pulse). This formula is warm and drying in nature, which can further injure Yin fluids and worsen Heat.

Avoid

Excess Heat patterns or conditions with genuine Fire. The warming properties of Gui Zhi (Cinnamon Twig) and the sweet tonifying nature of the formula are inappropriate for Heat-excess conditions.

Avoid

True Kidney Yang collapse with profuse cold sweating and faint pulse. This formula gently warms Heart Yang and drains water, but it lacks the rescue Yang action needed for critical Yang exhaustion. Formulas like Si Ni Tang are more appropriate.

Caution

Hypertension or edema with Liver Yang rising. Gui Zhi's ascending and dispersing nature may aggravate upward-moving Yang. Use with caution and only under close practitioner supervision.

Caution

Patients taking potassium-depleting medications (diuretics, digoxin, corticosteroids). Gan Cao (Licorice) contains glycyrrhizin, which can promote potassium loss and sodium/water retention. Dosage and duration should be carefully monitored.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

Generally considered safe during pregnancy when used appropriately under practitioner guidance. The four ingredients (Fu Ling, Gui Zhi, Zhi Gan Cao, Da Zao) are all relatively mild herbs without known abortifacient or strongly uterine-stimulating properties. However, Gui Zhi (Cinnamon Twig) is warm and acrid, and its dispersing nature means that high doses or prolonged use should be avoided in pregnancy without professional supervision. Gan Cao (Licorice) in large amounts or over extended periods may contribute to fluid retention and elevated blood pressure, which could be concerning in pregnant women predisposed to gestational hypertension or pre-eclampsia. Overall, this is a mild formula, but pregnancy use should always be supervised by a qualified practitioner.

Breastfeeding

No specific data on breast milk transfer exists for the herbs in this formula (Fu Ling, Gui Zhi, Zhi Gan Cao, Da Zao). All four ingredients are relatively gentle herbs commonly used in postpartum care in traditional Chinese medicine. Gan Cao (Licorice) in large doses or over prolonged periods may theoretically affect fluid balance due to glycyrrhizin content, but at standard formula dosages this is unlikely to pose a concern. There are no established reports of adverse effects in breastfed infants from maternal use of this formula. Caution is advised as with any herbal medicine during breastfeeding. Consult a qualified practitioner before use.

Children

This formula can be used in children with appropriate dosage reductions based on age and body weight. A common guideline: - Children under 3 years: approximately 1/4 of the adult dose - Children 3-6 years: approximately 1/3 of the adult dose - Children 6-12 years: approximately 1/2 of the adult dose - Children over 12: approximately 2/3 to full adult dose All herbs in this formula are mild and well-tolerated. The sweet flavor from Da Zao and Zhi Gan Cao generally makes it palatable for children. No specific age restrictions apply, but use in infants and very young children should only occur under practitioner supervision. The formula should be discontinued once symptoms resolve and is not intended for prolonged unsupervised use in pediatric patients.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with Fu Ling Gui Zhi Gan Cao Da Zao Tang

Gan Cao (Licorice, specifically Zhi Gan Cao/honey-prepared licorice) in this formula contains glycyrrhizin, which has documented interactions with several classes of pharmaceuticals:

  • Digoxin: Glycyrrhizin can promote potassium excretion, and low potassium increases the risk of digoxin toxicity, potentially causing dangerous cardiac arrhythmias. Concurrent use requires careful monitoring.
  • Diuretics (thiazides, loop diuretics): Both licorice and potassium-depleting diuretics can lower potassium levels. Combined use may increase the risk of hypokalemia.
  • Antihypertensive medications: Glycyrrhizin can cause sodium and water retention, raising blood pressure and potentially counteracting the effects of blood pressure-lowering drugs.
  • Corticosteroids: Licorice may slow the metabolism of corticosteroids, potentially prolonging and intensifying their effects and side effects.
  • Warfarin: Licorice may accelerate warfarin breakdown, reducing its anticoagulant effectiveness.

These interactions are dose-dependent and more likely with higher doses or prolonged use of Gan Cao. At the standard dosage in this formula (6g of Zhi Gan Cao), the risk is lower but not negligible for patients on these medications. Consult a healthcare provider before concurrent use with any prescription medications.

Usage Guidance

Practical advice for getting the most out of Fu Ling Gui Zhi Gan Cao Da Zao Tang

Best time to take

Warm, three times daily between meals (approximately 30–60 minutes after eating), as specified in the original text.

Typical duration

Acute use: 3–7 days, reassessed as symptoms resolve. Discontinue once palpitations and abdominal distension subside.

Dietary advice

While taking this formula, avoid cold and raw foods (such as salads, iced drinks, raw seafood, and cold fruit) as these can further impair Yang Qi and worsen water accumulation. Also avoid excessively salty foods, which promote water retention and work against the formula's diuretic action. Greasy, heavy, and difficult-to-digest foods should be minimized as they burden the Spleen's transport function. Favor warm, easily digestible foods such as congee (rice porridge), cooked root vegetables, warm soups, and small amounts of ginger or cinnamon in cooking to support the formula's warming and water-resolving action.

Fu Ling Gui Zhi Gan Cao Da Zao Tang originates from Shang Han Lun (伤寒论) by Zhang Zhongjing, Clause 65; also appears in Jin Gui Yao Lue (金匮要略), Ben Tun Qi chapter Eastern Han dynasty (东汉), circa 200 CE

Classical Texts

Key passages from the classical Chinese medical texts that first described Fu Ling Gui Zhi Gan Cao Da Zao Tang and its clinical use

Shang Han Lun (伤寒论), Clause 65:

发汗后,其人脐下悸者,欲作奔豚,茯苓桂枝甘草大枣汤主之。

"After sweating [treatment], if the person has palpitations below the navel and is on the verge of developing running piglet [syndrome], Fu Ling Gui Zhi Gan Cao Da Zao Tang governs."

Jin Gui Yao Lue (金匮要略), Chapter on Ben Tun Qi Disease (奔豚气病脉证治):

发汗后,其人脐下悸者,欲作奔豚,茯苓桂枝甘草大枣汤主之。

"After sweating, if the person has palpitations below the navel and is about to develop running piglet [syndrome], Fu Ling Gui Zhi Gan Cao Da Zao Tang governs."

The text in the Jin Gui Yao Lue closely mirrors the Shang Han Lun passage, confirming this formula's role in preventing the onset of Ben Tun (running piglet) when cold water Qi in the lower abdomen threatens to surge upward due to Heart Yang deficiency after sweating.

Zhu Jie Shang Han Lun (注解伤寒论) by Cheng Wu-Ji:

本方用茯苓以伐肾邪,桂枝能泄奔豚,甘草、大枣之甘滋助脾土以平肾水气。煎用甘澜水者,扬之无力,取不助肾气也。

"This formula uses Fu Ling to subdue Kidney pathogenic [water], Gui Zhi to discharge running piglet, and the sweetness of Gan Cao and Da Zao to support Spleen Earth and pacify Kidney water Qi. The use of Gan Lan water [sweet, turbulent water] in cooking—its vigorous stirring renders it without force—is to ensure it does not support the Kidney pathogenic [water Qi]."

Yi Zong Jin Jian (医宗金鉴):

此方即苓桂术甘汤去白术加大枣倍茯苓也。彼治心下逆满,气上冲胸,此治脐下悸,欲作奔豚。

"This formula is Ling Gui Zhu Gan Tang with Bai Zhu removed, Da Zao added, and Fu Ling doubled. The former treats counterflow fullness below the heart with Qi surging up into the chest; this one treats palpitations below the navel with impending running piglet."

Historical Context

How Fu Ling Gui Zhi Gan Cao Da Zao Tang evolved over the centuries — its origins, lineage, and place in the broader tradition of Chinese medicine

Fu Ling Gui Zhi Gan Cao Da Zao Tang originates from Zhang Zhongjing's Shang Han Lun (伤寒论), Clause 65, composed during the late Eastern Han dynasty (circa 200 CE). The same formula also appears in the Jin Gui Yao Lue (金匮要略) in the chapter on Ben Tun Qi disease (奔豚气病脉证治), with nearly identical wording. It belongs to the important "Ling Gui" (苓桂) family of formulas, a group of closely related prescriptions built around a Fu Ling and Gui Zhi core that address different manifestations of water Qi pathology.

The Yi Zong Jin Jian (医宗金鉴) clarified this formula's structural relationship to the more widely known Ling Gui Zhu Gan Tang (苓桂术甘汤): it is essentially Ling Gui Zhu Gan Tang with Bai Zhu (White Atractylodes) removed, Da Zao (Jujube) added, and Fu Ling doubled. While Ling Gui Zhu Gan Tang treats water retention in the middle Jiao with symptoms like dizziness and fullness below the heart, this formula targets water accumulation in the lower Jiao with palpitations below the navel and the threat of Ben Tun (running piglet) syndrome. Throughout history the formula has had numerous alternative names including Ling Gui Zao Gan Tang (苓桂枣甘汤), Ling Gui Gan Zao Tang, and Fu Ling Tang, reflecting its widespread use across different medical lineages.

A distinctive feature of this formula is its unique preparation method: it is cooked with Gan Lan Shui (甘澜水, also called "sweet turbulent water" or "labor water"), prepared by vigorously stirring water in a large basin until thousands of tiny bubbles appear on the surface. Classical commentators like Cheng Wu-Ji explained that this agitated water "has no force" and therefore does not reinforce pathological Kidney water. This unusual preparation method reflects the sophisticated attention Zhongjing gave to every detail of treatment, and has been discussed by commentators across many dynasties. Modern practitioners of the Jing Fang (classical formula) tradition, including the Yangjing Liu-shi Shanghan school led by National Master of Chinese Medicine Wang Qingguo, continue to use and teach this formula as part of the broader "Ling Gui" formula family for water Qi disorders.