What Bu Zhong Yi Qi Tang is for
Bu Zhong Yi Qi Tang is for skin that has lost tone and looks pale, thin and tired, where lesions stay open and the surface seems to sag rather than hold. It rebuilds the Qi that holds tissue up and lifts what has sunk.
The skin is pale and thin, with little of the firmness that healthy tissue has, so it looks slack and creases easily. Sores and grazes stay open longer than they should, and the tissue around them looks undernourished rather than inflamed. There may be a sense of heaviness in the area, and the surface can look dull and puffy rather than bright. This is the skin of depletion with sinking: the Qi that should hold tissue up and rebuild it has failed, so the surface loses both tone and the force to close.
Huang Qi and Ren Shen rebuild the Qi, Bai Zhu and Gan Cao strengthen the middle that produces it, Dang Gui nourishes the Blood that gives the skin its body, and Chen Pi keeps the rich tonics from stagnating. Sheng Ma and Chai Hu are added in small doses to lift the Qi that has sagged. The lifting pair is the signature of the formula, and it is what distinguishes this from a plain Qi tonic.
It is not for Yin deficiency with heat, where the skin is dry and red, and it is not for a robust person with an excess pattern. The lifting herbs can aggravate a pattern where Qi is already rising too strongly, so professional guidance is needed. It suits the pale, slack, slow-healing picture over weeks rather than days, and it is reviewed as the tone returns.
Actions
- Tonifies Qi and strengthens the Spleen
- Lifts sunken Yang and Qi
- Nourishes Blood
- Supports tissue tone and healing
Properties
- Taste and temperature: Predominantly sweet with a mild pungent note. Sweet tonifies the middle, pungent and light lifting herbs raise the Qi.
- Organs: Spleen, Stomach, Lungs
- Channels: Spleen, Stomach, Lung
The pattern behind it
The pattern is Spleen Qi deficiency with sinking of the Qi. The deficiency produces fatigue and poor appetite, and the sinking produces the bearing-down feeling, the prolapse and the loss of tissue tone. The formula tonifies the Qi and lifts it, which is why it is used for the depleted, sagging picture rather than for simple fatigue.
Composition
The herbs in Bu Zhong Yi Qi Tang, with their role and dose.
| Role | Herb | Dose | Properties | Why it is there |
|---|---|---|---|---|
| King | Huang Qi | 15 to 30 g | Slightly warm, Sweet | Tonifies Qi and lifts it, the leading herb for the sinking pattern. |
| Ren Shen | 6 to 15 g | Slightly warm, Sweet | Strongly tonifies Qi, restoring the force the Spleen lacks. | |
| Bai Zhu | 9 to 15 g | Warm, Bitter, sweet | Strengthens the Spleen, the source of the Qi. | |
| Gan Cao | 6 to 9 g | Neutral, Sweet | Harmonises the formula and supports the middle. | |
| Dang Gui | 3 to 10 g | Warm, Sweet, pungent | Nourishes Blood, since Qi and Blood are produced together. | |
| Chen Pi | 6 to 9 g | Warm, Pungent, bitter | Moves Qi so the tonics do not cause fullness. | |
| Sheng Ma | 3 to 6 g | Slightly cold, Sweet, pungent | Lifts the Qi in a small dose, the signature of the formula. | |
| Chai Hu | 3 to 6 g | Slightly cool, Pungent, bitter | Lifts the Qi and frees the Liver, working with Sheng Ma. |
Patterns it treats
Spleen Qi Deficiency
Skin that is pale, thin and slack, with sores that stay open and a surface that looks undernourished rather than inflamed. Deficient Spleen Qi cannot hold tissue up or rebuild it, so tone is lost and healing stalls.
How the formula is built
The formula is a Qi tonic with two small lifting herbs. The tonics build the Qi and the lifting herbs raise it, which is why it treats the sinking picture rather than simple deficiency. Chen Pi keeps the whole formula from stagnating.
Skin conditions it is used for
Where this formula appears in the skin conditions of the library.
Preparation and use
Decocted in water and taken warm, in two divided doses.
Modifications
- If the Cold is marked, warming herbs are added.
- If the Blood deficiency is marked, nourishing herbs are increased.
- If the sinking is prominent, the lifting herbs are emphasised.
- If Heat or Yin deficiency is present, the warming is reduced.
Timing
Taken warm in two divided doses.
Duration
Two to eight weeks for chronic deficiency, then reassessed.
Diet while taking it
Warm cooked food at regular times; avoid cold raw food that weakens the Spleen.
Safety
Contraindications
Avoid in Yin deficiency with heat and in excess patterns. Use care where Qi is rising excessively, such as some headaches and high blood pressure patterns, because the lifting herbs can aggravate that.
Interactions
Huang Qi and Ren Shen may affect blood sugar and immune function, and Gan Cao can interact with diuretics, digoxin and corticosteroids.
Pregnancy
Generally considered safe under professional guidance, and the formula is classically used in some pregnancy support contexts.
Breastfeeding
Considered acceptable under professional guidance.
Children
Used only with professional supervision.
Before you use it
Recorded from the classical record and rewritten in this project's own words. Educational only: not a prescription, and unexplained weight loss or persistent fatigue needs medical assessment.
General safety references
General references for herbal hepatotoxicity and herb-drug interactions; they are not specific to this formula.
- Review article: Herbal hepatotoxicity - an update on traditional Chinese medicine preparations. Alimentary Pharmacology & Therapeutics, 2014. PMID: 24844799.
- Interactions between herbal medicines and prescribed drugs: an updated systematic review. Drugs, 2009. PMID: 19719333.
- Warfarin and food, herbal or dietary supplement interactions: a systematic review. British Journal of Clinical Pharmacology, 2021. PMID: 32478963.
Selected PubMed records
Real PubMed records for the modern, non-TCM discussion of this formula. They are references, not a claim that the formula is proven for any skin condition.
- The herbal drug, Bu-Zhong-Yi-Qi-Tang, for the treatment of atopic dermatitis: Protocol for a systematic review.. Medicine, 2019. PMID: 30608425.
- Antiinflammatory effects of Bu-zhong-yi-qi-tang in patients with perennial allergic rhinitis.. Journal of ethnopharmacology, 2008. PMID: 17980528.
Origin and history
Pi Wei Lun (脾胃论, Treatise on the Spleen and Stomach) by Li Dongyuan, Jin dynasty, 13th century.
Li Dongyuan built the formula around his central idea that the Spleen and Stomach are the source of Qi, and that when their Qi is deficient it can sink. The small doses of lifting herbs are the mark of that theory, and the formula became one of the most important tonics in the tradition.
Evidence note
No controlled trial of this treatment in skin conditions was identified for this entry. What is described here rests on the classical and later materia medica record and on traditional clinical use, not on controlled trial evidence, and it is not a prediction of benefit. Where skin-specific research does exist it is linked above.
Common questions
Why does it contain lifting herbs?
Because the pattern includes sinking of the Qi, which shows as a bearing-down feeling or prolapse. Tonifying alone would not lift it.
Is it safe with high blood pressure?
Care is needed, because the lifting herbs can aggravate patterns where Qi rises excessively. Professional guidance is required.
Can it help skin that has lost tone?
Where the loss of tone comes from Spleen Qi deficiency with a pale tongue and afternoon fatigue, it can be part of the treatment.
How long is it used?
Two to eight weeks, then reassessed.