Tsaoko fruits (Cao Guo) Houpu Magnolia bark (Hou Pu) Areca nuts (Bing Lang) Baikal skullcap roots (Huang Qin)

Chinese: 达原饮

Pinyin: Dá Yuán Yǐn

Other names: Reach the Source Drink

Number of ingredients: 7 herbs

Formula category: Formulas that clear malarial disorders

Conditions for which it may be prescribed: MalariaInfluenza

  1. Opens the membrane source by thrusting out pathogens
  2. Clears away filth
  3. Transforms turbidity

Contraindications: This formula is ineffective for treating Damp-Heat disorders in which the... This formula is ineffective for treating Damp-Heat disorders in which the manifestations of Heat are more severe than those of Dampness, as well as for lurking Heat and constrained Dampness. Furthermore, once the Qi Stagnation has been opened and the pathogen discharged, its use must be discontinued. As the Yang Qi that was previously pressed toward the Interior now moves forcefully toward the outside, such cases frequently transmute into a Heat pattern. When this formula is administered repeatedly and incorrectly, ministerial Fire will flare upward, stirring Internal Liver wind with spasms and convulsions. see more

Source date: 1642 AD

Source book: Discussion of Warm Epidemics

Da Yuan Yin is a 7-ingredient Chinese Medicine formula with Tsaoko Fruits (Cao Guo), Houpu Magnolia Bark (Hou Pu) and Areca Nuts (Bing Lang) as principal ingredients.

Invented in 1642 AD, it belongs to the category of formulas that clear malarial disorders. Its main actions are: 1) opens the membrane source by thrusting out pathogens and 2) clears away filth.

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.

From a Western Medicine standpoint, such patterns can give rise to a range of conditions such as malaria or influenza for instance.

On this page, after a detailed description of each of the seven ingredients in Da Yuan Yin, we review the patterns and conditions that Da Yuan Yin helps treat.

The seven ingredients in Da Yuan Yin

Cao Guo is a king ingredient in Da Yuan Yin. Like the name indicates, it means it has more power than other ingredients in the formula.

1. Tsaoko Fruits (Cao Guo)

Part used: Dried ripe fruit

Nature: Warm

Taste(s): Pungent

Meridian affinity: SpleenStomach

Category: Aromatic herbs that transform Dampness

Cao Guo is an aromatic herb that transforms turbidity. Thus, it stops the vomiting and vents the Pernicious Influences lurking in the half-Exterior, half-Interior level. The strong, aromatic and acrid, and properties of this herb help it reach and open up the membrane source, which turbidity has constrained.

Learn more about Tsaoko Fruits (Cao Guo)

Hou Pu is a king ingredient in Da Yuan Yin. Like the name indicates, it means it has more power than other ingredients in the formula.

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

Hou Pu an aromatic herb that transforms turbidity, expels Dampness, and regulates the Qi. The strong, aromatic and acrid, and properties of this herb help it reach and open up the membrane source, which turbidity has constrained.

Learn more about Houpu Magnolia Bark (Hou Pu)

Bing Lang is a king ingredient in Da Yuan Yin. Like the name indicates, it means it has more power than other ingredients in the formula.

3. Areca Nuts (Bing Lang)

Part used: Dried ripe seed

Nature: Warm

Taste(s): BitterPungent

Meridian affinity: Large intestineStomach

Category: Herbs that expel parasites

Bing Lang disperses the Dampness and reduces Stagnation by facilitating the flow of Qi, thereby hastening the elimination of the Pernicious Influences from the Interior. The strong, aromatic and acrid, and properties of this herb help it reach and open up the membrane source, which turbidity has constrained.

Learn more about Areca Nuts (Bing Lang)

Huang Qin is a deputy ingredient in Da Yuan Yin. This means it helps the king ingredient(s) treat the main pattern or it serves to treat a coexisting pattern.

4. Baikal Skullcap Roots (Huang Qin)

Part used: Dried root

Nature: Cold

Taste(s): Bitter

Meridian affinity: GallbladderHeartLarge intestineLungSmall intestineSpleen

Category: Herbs that clear Heat and dry Dampness

Huang Qin clears Heat and dries Dampness. It is particularly useful for treating Damp-Heat in the Stomach and Gallbladder.

Learn more about Baikal Skullcap Roots (Huang Qin)

Zhi Mu is a deputy ingredient in Da Yuan Yin. This means it helps the king ingredient(s) treat the main pattern or it serves to treat a coexisting pattern.

5. Anemarrhena Rhizomes (Zhi Mu)

Part used: Dried rhizome

Nature: Cold

Taste(s): BitterSweet

Meridian affinity: KidneyLungStomach

Category: Herbs that clear Heat and purge Fire and/or clear Summer Heat

In general Zhi Mu's main actions are as follows: "Clears Heat and Fire from the Qi level. Clears Heat and Fire from the Lung and Stomach. Clears Heat and tonifies the Yin."

In the context of Da Yuan Yin, it is used because it clears Heat, nourishes the Yin, and prevents Heat from injuring the Yin and Body Fluids.

Learn more about Anemarrhena Rhizomes (Zhi Mu)

Bai Shao is a deputy ingredient in Da Yuan Yin. This means it helps the king ingredient(s) treat the main pattern or it serves to treat a coexisting pattern.

6. White Peony Roots (Bai Shao)

Part used: Dried root

Nature: Neutral

Taste(s): BitterSour

Meridian affinity: LiverSpleen

Category: Tonic herbs for Blood Deficiency

In general Bai Shao's main actions are as follows: "Tonifies the Blood and preserves the Yin. Nourishes the Liver and assists in the smooth flow of Qi. Regulates the meridians and eases the pain."

In the context of Da Yuan Yin, it is used because it prevents the acrid, drying properties of the other herbs from damaging the Yin and Blood.

Learn more about White Peony Roots (Bai Shao)

Gan Cao is an envoy ingredient in Da Yuan Yin. This means that it directs the formula towards certain area of the body and/or harmonizes the actions of other ingredients.

7. Liquorice (Gan Cao)

Part used: Dried root and rhizome

Nature: Neutral

Taste(s): Sweet

Meridian affinity: HeartLungSpleenStomach

Category: Tonic herbs for Qi Deficiency

In general Gan Cao's main actions are as follows: "Tonifies the Basal Qi and nourishes the Spleen Qi. Clears Heat and dispels toxicity. Moistens the Lungsexpel phlegm and stop coughing. Relieves spasms and alleviates pain. Harmonizes and moderates the effects of other herbs."

In the context of Da Yuan Yin, it is used because it plays a role of harmonizing the actions of the herbs present in the formula.

Learn more about Liquorice (Gan Cao)

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