Rhubarb (Da Huang) Houpu Magnolia bark (Hou Pu) Immature Bitter Oranges (Zhi Shi)

Chinese: 小承气汤

Pinyin: Xiǎo Chéng Qì Tāng

Other names: Minor Order the Qi Decoction

Number of ingredients: 3 herbs

Formula category: Formulas that purge Heat accumulation

Mother formula: Da Cheng Qi Tang

Conditions for which it may be prescribed: ManiaColitisMeasles and thirty other conditions

  1. Moderately purges Heat accumulation
  2. Circulates Qi in the Middle

Contraindications: Should not be used during pregnancy.

Source date: 220 AD

Source book: Discussion of Cold Damage

Xiao Cheng Qi Tang is a 3-ingredient Chinese Medicine formula.

Invented in 220 AD, it belongs to the category of formulas that purge Heat accumulation. Its main actions are: 1) moderately purges Heat accumulation and 2) circulates Qi in the Middle .

In Chinese Medicine health conditions are thought to arise due to "disharmonies" in the body as a system. These disharmonies are called "patterns" and the very purpose of herbal formulas is to fight them in order to restore the body's harmony.

In this case Xiao Cheng Qi Tang is used by TCM practitioners to fight patterns like Bright Yang Fire in Stomach and Intestines. From a Western Medicine standpoint, such patterns can give rise to a range of conditions such as acute cholecystitis, acute pancreatitis or postoperative constipation and distention for instance.

On this page, after a detailed description of each of the three ingredients in Xiao Cheng Qi Tang, we review the patterns and conditions that Xiao Cheng Qi Tang helps treat.

The three ingredients in Xiao Cheng Qi Tang

1. Rhubarb (Da Huang)

Part used: Dried root and rhizome

Nature: Cold

Taste(s): Bitter

Meridian affinity: SpleenStomachLarge intestineLiverPericardium

Category: Purgative herbs that drain downward

In general Da Huang's main actions are as follows: "Drains Excess Heat and eliminates Dampness, especially when in the Bright Yang stage according to the Six Stages Theory. Cools the Blood and stops bleeding. Invigorates Blood, breaks up Stasis and relieves pain. Clears Heat and toxins from Excess. Applied topically for Hot sores and Blood Stasis."

In the context of Xiao Cheng Qi Tang, it is used because it drains Heat, purges accumulations, drains Fire, transforms Dampness by promoting urination.

Learn more about Rhubarb (Da Huang)

2. Houpu Magnolia Bark (Hou Pu)

Part used: Dried stem bark, root bark or branch bark

Nature: Warm

Taste(s): BitterPungent

Meridian affinity: LungSpleenStomach

Category: Aromatic herbs that transform Dampness

In general Hou Pu's main actions are as follows: "Moves Rebellious Qi downward, dries Dampness and relieves Food Stagnation. Transforms Phlegm and redirects Rebellious Qi of the Lung."

In the context of Xiao Cheng Qi Tang, it is used because it dissipates clumps, reduces distention, breaks up and descends Stagnant Qi and unblocks bowels.

Learn more about Houpu Magnolia Bark (Hou Pu)

3. Immature Bitter Oranges (Zhi Shi)

Part used: Dried unripe fruit

Nature: Cool

Taste(s): BitterPungentSour

Meridian affinity: SpleenStomachLarge intestine

Category: Herbs that regulate Qi

In general Zhi Shi's main actions are as follows: "Regulates the flow of Qi in the Middle Burner and reduces Food Stagnation. Moves Qi downward and helps constipation. Reduces Stagnant Phlegm and lessens distention and pain. For prolapse of organs when used with the appropriate herbs."

In the context of Xiao Cheng Qi Tang, it is used because it spreads and descends Qi, dries Dampness, transforms Phlegm and relieves fullness.

Learn more about Immature Bitter Oranges (Zhi Shi)

Xiao Cheng Qi Tang is used to treat Bright Yang Fire in Stomach and Intestines

It's important to remember that herbal formulas are meant to treat patterns, not "diseases" as understood in Western Medicine. According to Chinese Medicine patterns, which are disruptions to the body as a system, are the underlying root cause for diseases and conditions.

As such Xiao Cheng Qi Tang is mostly used to treat the pattern "Bright Yang Fire in Stomach and Intestines" which we describe below.

But before we delve into Bright Yang Fire in Stomach and Intestines here is an overview of the Western conditions it is commonly associated with:

Acute cholecystitis Acute pancreatitis Postoperative constipation and distention Roundworms in the bile duct Early-stage dysentery Pneumonia Hypertension Beriberi Epilepsy Food poisoning Ephidrosis Dysentery Intestinal paralysis Chronic gastritis Viral hepatitis Hydrothorax Colitis Ulcerative colitis Diverticulitis Mesenteric lymphadenitis Trichomonas Profuse perspiration Stomach flu Measles Meningitis Tetanus Neurosis Obesity Hemorrhoids Mania Constipation Emotional disorder Food retention

Again it wouldn't be correct to say "Xiao Cheng Qi Tang treats acute cholecystitis" for instance. Rather, Xiao Cheng Qi Tang is used to treat Bright Yang Fire in Stomach and Intestines, which is sometimes the root cause behind acute cholecystitis.

Now let's look at Bright Yang Fire in Stomach and Intestines, a pattern that TCM practitioners commonly treat with Xiao Cheng Qi Tang.

The Stomach is a so-called "Fu" Organ. Learn more about the Stomach in Chinese Medicine

Bright Yang Fire in Stomach and Intestines

Xiao Cheng Qi Tang is sometimes prescribed by TCM practitioners to treat Bright Yang Fire in Stomach and Intestines. This pattern leads to symptoms such as high fever that is worse in the afternoon, profuse sweating, sweating on limbs and abdominal fullness. Patients with Bright Yang Fire in Stomach and Intestines typically exhibit deep (Chen), rapid (Shu), slippery (Hua) or full (Shi) pulses.

Within the framework of the Six Stages theory, this is one of the two patterns of the Bright Yang stage (the second of the six stages). Within the Four Levels theory, this is one of the five patterns of the Qi level (the second of the four levels).

It corresponds to a penetration of an External... read more about Bright Yang Fire in Stomach and Intestines

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