Elm seed cakes (Wu Yi) Quisqualis fruits (Shi Jun Zi) Aloe vera (Lu Hui) Bat feces (Ye Ming Sha) Poria-cocos mushrooms (Fu Ling) Atractylodes rhizomes (Bai Zhu) Ginseng (Ren Shen) Liquorice (Gan Cao)

Chinese: 布袋丸

Pinyin: Bù Dài Wán

Other names: Cloth Sack Pill

Number of ingredients: 8 herbs

Formula category: Formulas that expel parasites

Conditions for which it may be prescribed: AscariasisMalnutritionParasitic infestation and one other condition

  1. Expels roundworms
  2. Reduces nutritional impairment in children
  3. Tonifies the Spleen and Stomach

Source date: Late Ming

Source book: Supplement to the Pocket-Sized Discussion of Formulas for Children

Bu Dai Wan is a 8-ingredient Chinese Medicine formula with Elm Seed Cakes (Wu Yi) and Quisqualis Fruits (Shi Jun Zi) as principal ingredients.

Invented in Late Ming, it belongs to the category of formulas that expel parasites. Its main actions are: 1) expels roundworms and 2) reduces nutritional impairment in children .

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 ascariasis, parasitic infestation or childhood malnutrition for instance.

On this page, after a detailed description of each of the eight ingredients in Bu Dai Wan, we review the patterns and conditions that Bu Dai Wan helps treat.

The eight ingredients in Bu Dai Wan

Wu Yi is a king ingredient in Bu Dai Wan. Like the name indicates, it means it has more power than other ingredients in the formula.

1. Elm Seed Cakes (Wu Yi)

Part used: The seeds mixed with the other substances

Nature: Warm

Taste(s): BitterPungent

Meridian affinity: SpleenStomach

Category: Herbs that expel parasites

Wu Yi is acrid, bitter, and warm. It is very effective in expelling roundworms and treating childhood nutritional impairment.  The combination of Aloe vera, Elm seed cake and Quisqualis fruit has a strong anti-parasitic effect and eliminate the parasites via the stool.

Learn more about Elm Seed Cakes (Wu Yi)

Shi Jun Zi is a king ingredient in Bu Dai Wan. Like the name indicates, it means it has more power than other ingredients in the formula.

2. Quisqualis Fruits (Shi Jun Zi)

Part used: The fluits

Nature: Warm

Taste(s): Sweet

Meridian affinity: SpleenStomach

Category: Herbs that expel parasites

Shi Jun Zi is sweet and warm. It is very effective in expelling roundworms and treating childhood nutritional impairment.  The combination of Aloe vera, Elm seed cake and Quisqualis fruit has a strong anti-parasitic effect and eliminate the parasites via the stool.

Learn more about Quisqualis Fruits (Shi Jun Zi)

Lu Hui is a deputy ingredient in Bu Dai Wan. This means it helps the king ingredient(s) treat the main pattern or it serves to treat a coexisting pattern.

3. Aloe Vera (Lu Hui)

Part used: Concentrated dry product of leaf juice

Nature: Cold

Taste(s): Bitter

Meridian affinity: Large intestineLiver

Category: Purgative herbs that drain downward

Lu Hui expels roundworms and is also a purgative that drains Heat.  The combination of Aloe vera, Elm seed cake and Quisqualis fruit has a strong anti-parasitic effect and eliminate the parasites via the stool.

Learn more about Aloe Vera (Lu Hui)

Ye Ming Sha is an assistant ingredient in Bu Dai Wan. This means that it either serves to reinforces the effect of other ingredients or it moderates their toxicity.

4. Bat Feces (Ye Ming Sha)

Part used: The feces

Nature: Cool

Taste(s): Pungent

Meridian affinity: Liver

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

Ye Ming Sha improves the acuity of vision while also dispersing accumulations and reducing childhood nutritional impairment.

Learn more about Bat Feces (Ye Ming Sha)

Fu Ling is an assistant ingredient in Bu Dai Wan. This means that it either serves to reinforces the effect of other ingredients or it moderates their toxicity.

5. Poria-Cocos Mushrooms (Fu Ling)

Part used: Dried sclerotium

Nature: Neutral

Taste(s): Sweet

Meridian affinity: HeartKidneyLungSpleen

Category: Herbs that drain Dampness

In general Fu Ling's main actions are as follows: "Encourages urination and drains Dampness. Tonic to the Spleen/Stomach. Assists the Heart and calms the Spirit."

In the context of Bu Dai Wan, it is used because it benefit the Spleen and fortify the Qi of the Middle Burner. .

Learn more about Poria-Cocos Mushrooms (Fu Ling)

Bai Zhu is an assistant ingredient in Bu Dai Wan. This means that it either serves to reinforces the effect of other ingredients or it moderates their toxicity.

6. Atractylodes Rhizomes (Bai Zhu)

Part used: Dried rhizome

Nature: Warm

Taste(s): BitterSweet

Meridian affinity: SpleenStomach

Category: Tonic herbs for Qi Deficiency

In general Bai Zhu's main actions are as follows: "Tonifies the Spleen Qi. Fortifies the Spleen Yang and dispels Damp through urination. Tonifies Qi and stops sweating. Calms restless fetus when due to Deficiency of Spleen Qi."

In the context of Bu Dai Wan, it is used because it benefit the Spleen and fortify the Qi of the Middle Burner. .

Learn more about Atractylodes Rhizomes (Bai Zhu)

Ren Shen is an assistant ingredient in Bu Dai Wan. This means that it either serves to reinforces the effect of other ingredients or it moderates their toxicity.

7. Ginseng (Ren Shen)

Part used: Dried root

Nature: Warm

Taste(s): BitterSweet

Meridian affinity: HeartLungSpleen

Category: Tonic herbs for Qi Deficiency

In general Ren Shen's main actions are as follows: "Very strongly tonifies the Qi. Tonifies the Lungs and Spleen. Assists the body in the secretion of Fluids and stops thirst. Strengthens the Heart and calms the Shen (mind/spirit)."

In the context of Bu Dai Wan, it is used because it benefit the Spleen and fortify the Qi of the Middle Burner. .

Learn more about Ginseng (Ren Shen)

Gan Cao is an assistant ingredient in Bu Dai Wan. This means that it either serves to reinforces the effect of other ingredients or it moderates their toxicity.

8. 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 Bu Dai Wan, it is used because it benefit the Spleen and fortify the Qi of the Middle Burner. .

Learn more about Liquorice (Gan Cao)

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