Dang Gui Shao Yao San (当归芍药散): Angelica and Peony Powder for Women's Health
Explore Dang Gui Shao Yao San, a Jin Gui Yao Lue classic formula that harmonizes the Liver and Spleen while nourishing Blood. Widely used for menstrual disorders, pregnancy support, and abdominal pain in women.
Dang Gui Shao Yao San: The Women’s Health Classic
Dang Gui Shao Yao San (当归芍药散), or Angelica and Peony Powder, is one of the most revered formulas in TCM gynecology. Recorded in Zhang Zhongjing’s Jin Gui Yao Lue (金匮要略, Essentials from the Golden Cabinet) around 200 CE, this elegant formula addresses a pattern that affects countless women: Liver Blood deficiency with Spleen dampness — a combination that produces menstrual pain, abdominal discomfort, and fluid retention.
What makes this formula remarkable is its simplicity and balance. With just six herbs, it simultaneously nourishes Blood, regulates the Liver, strengthens the Spleen, and drains dampness — accomplishing in one formula what might otherwise require three separate prescriptions.
Composition
| Ingredient | Chinese | Dosage (traditional ratio) | Role |
|---|---|---|---|
| Dang Gui (Angelica Root) | 当归 | 3 fen | Nourishes and invigorates Blood |
| Bai Shao (White Peony Root) | 白芍 | 1 jin (largest dose) | Nourishes Blood, softens the Liver, relieves spasms and pain |
| Chuan Xiong (Szechuan Lovage) | 川芎 | 1/2 jin | Moves Blood, relieves pain |
| Bai Zhu (White Atractylodes) | 白术 | 1/4 jin | Strengthens the Spleen, transforms dampness |
| Fu Ling (Poria) | 茯苓 | 1/4 jin | Drains dampness, strengthens the Spleen, calms the Shen |
| Ze Xie (Water Plantain) | 泽泻 | 1/2 jin | Drains dampness, promotes urination |
The Two Groups
The formula splits naturally into two therapeutic groups:
Blood-Nourishing Group (Liver focus):
- Dang Gui + Bai Shao + Chuan Xiong — this trio nourishes and moves Blood in the Liver. Together, they ensure Blood is abundant, softens the Liver, and flows freely without stagnation.
Dampness-Draining Group (Spleen focus):
- Bai Zhu + Fu Ling + Ze Xie — this trio strengthens the Spleen’s transformative power and drains excess dampness through urination. They address the fluid accumulation that often accompanies Blood deficiency.
The genius of the formula lies in how these two groups work together: the Liver and Spleen are in a controlling relationship (Wood controls Earth). When Liver Blood is deficient, the Liver fails to regulate the Spleen smoothly, and dampness accumulates. By treating both simultaneously, the formula restores the natural balance between these two organ systems.
Primary Indications
Classical Indications (from the Jin Gui Yao Lue)
The original text gives two main indications:
- “Women who experience abdominal pain during pregnancy and various abdominal discomfort” — pregnancy-related abdominal pain
- “Abdominal pain that feels like cramping” — spasm-type pain in the lower abdomen
Modern Clinical Applications
Gynecological Conditions:
- Dysmenorrhea (painful periods): Especially cramping pain that is better with pressure and warmth, often with clots
- Irregular menstruation: Cycles that are delayed, scanty, or unpredictable
- Premenstrual syndrome (PMS): Breast tenderness, mood swings, bloating, and abdominal discomfort
- Polycystic Ovary Syndrome (PCOS): As part of a comprehensive treatment approach
- Pregnancy support: Mild abdominal discomfort during early pregnancy (under professional supervision)
- Postpartum recovery: Restoring Blood and resolving fluid retention after childbirth
Digestive Conditions:
- Abdominal pain with loose stools — the Spleen dampness component
- Bloating and water retention, especially cyclical (worse before menstruation)
Other Applications:
- Edema and fluid retention with a Blood deficiency component
- Chronic fatigue with anemia-like symptoms and digestive weakness
- Some cases of infertility related to Blood deficiency and dampness
Pattern Differentiation: When to Use This Formula
Dang Gui Shao Yao San is indicated for the combined pattern of:
Liver Blood Deficiency:
- Pale complexion
- Dizziness, blurry vision
- Nails that are brittle or pale
- Scanty periods
- Numbness in the extremities
Plus Spleen Dampness:
- Abdominal fullness and bloating
- Loose stools or diarrhea
- Edema, especially in the lower body
- Fatigue that worsens after eating
- A feeling of heaviness
Tongue: Pale with teeth marks (Spleen deficiency) and possibly a greasy coating (dampness)
Pulse: Wiry (Liver) and soft/rolling (dampness)
How It Works: The Mechanism
- Liver Blood deficiency causes the Liver to tighten and become irritable — this is the source of cramping pain
- The tightened Liver fails to regulate the Spleen (Wood overcontrols Earth or fails to support it), leading to Spleen weakness
- Weak Spleen accumulates dampness — fluids are not properly transformed and transported
- Dampness further obstructs Blood circulation — creating a vicious cycle of stagnation and pain
Dang Gui Shao Yao San breaks this cycle by:
- Nourishing Blood (Dang Gui, Bai Shao) — giving the Liver what it needs to relax
- Softening the Liver (Bai Shao, in high dose) — directly reducing spasms and cramping
- Moving Blood gently (Chuan Xiong) — ensuring nourishment without stagnation
- Strengthening the Spleen (Bai Zhu) — restoring its ability to manage fluids
- Draining dampness (Fu Ling, Ze Xie) — clearing the accumulated fluids
Why Bai Shao Is the Key Herb
Bai Shao (White Peony Root) is dosed at the highest amount in this formula, and for good reason. Its properties perfectly match the formula’s core purpose:
- Nourishes Blood — directly supplements the Liver’s Blood stores
- Softens the Liver (柔肝) — relaxes Liver tension and cramping
- Relieves spasms (缓急止痛) — reduces smooth muscle cramps in the uterus and intestines
- Harmonizes with Chuan Xiong — prevents Chuan Xiong from being too moving while ensuring Blood flows
This emphasis on Bai Shao is why the formula works so well for cramping pain — it is both a Blood tonic and an antispasmodic.
Differentiating from Similar Formulas
| Formula | Key Focus | When to Use Instead |
|---|---|---|
| Si Wu Tang (四物汤) | Pure Blood nourishment | Blood deficiency WITHOUT dampness |
| Xiao Yao San (逍遥散) | Liver Qi stagnation + Spleen deficiency | Emotional stress dominant, pain is distending not cramping |
| Gui Zhi Fu Ling Wan (桂枝茯苓丸) | Blood stasis in the lower abdomen | Fixed, stabbing pain with masses/clots, no deficiency |
| Wen Jing Tang (温经汤) | Cold in the uterus with Blood deficiency | Pain is clearly cold-type (better with strong heat), late periods |
| Dang Gui Shao Yao San | Blood deficiency + Spleen dampness | Cramping pain with fluid retention and digestive symptoms |
Modern Research
Research on Dang Gui Shao Yao San has found:
- Dysmenorrhea relief — significant reduction in menstrual pain intensity in clinical trials
- Anti-inflammatory effects — reduction of inflammatory prostaglandins
- Uterine muscle regulation — modulating uterine contractions to reduce cramping
- Hormonal modulation — mild estrogenic effects from Dang Gui and Chuan Xiong
- Diuretic effects — from Ze Xie and Fu Ling, confirming the dampness-draining action
- PCOS support — some studies showing improved ovulation rates when combined with standard treatment
The formula is one of the most researched in Japanese Kampo medicine (called Tokishakuyakusan), where it is a standard prescription for gynecological conditions.
Dosage Forms
Traditionally, Dang Gui Shao Yao San was prepared as a powder (散, san) taken with wine or warm water. Modern forms include:
- Decoction (汤剂): Strongest effect, individualized dosing
- Powder/granules (散剂/颗粒): Convenient, consistent dosing
- Patent pills (丸剂): Mildest effect, longest duration
For menstrual conditions, practitioners typically recommend starting the formula 5–7 days before the expected period and continuing through the period.
Precautions
- Not for purely excess patterns — if there is severe Blood stasis (dark clots, stabbing fixed pain) without deficiency, this formula is too nourishing
- Pregnancy use requires professional supervision — while the formula is traditionally used in pregnancy, dosage must be carefully managed
- Diarrhea may worsen initially — Ze Xie’s damp-draining action can increase bowel movements temporarily
- Not a substitute for iron supplementation — in cases of true iron-deficiency anemia, Western medical treatment may be needed alongside this formula
Key Takeaways
- Dang Gui Shao Yao San is the primary formula for the combined pattern of Liver Blood deficiency + Spleen dampness
- It excels at treating menstrual cramping pain with fluid retention and digestive symptoms
- The formula’s genius lies in its simultaneous treatment of Blood (Liver) and Dampness (Spleen)
- Bai Shao (White Peony) is the key herb — dosed highest for its antispasmodic and Blood-nourishing properties
- It is one of the most widely used and researched formulas in TCM gynecology
Related Articles
- Si Wu Tang (四物汤): Four Substance Decoction — the pure Blood-nourishing formula
- Xiao Yao San (逍遥散): Free and Easy Wanderer — for Liver Qi stagnation patterns
- Wen Jing Tang (温经汤): Warm the Menses Decoction — for cold-type menstrual pain
- Dang Gui (当归): The King of Blood Herbs — the chief nourishing herb in this formula
- TCM Pregnancy Care — holistic approach to pregnancy wellness
FAQ
Who is this article for?
Readers interested in one of the most important formulas in TCM gynecology — how it works, what conditions it treats, and why it has remained relevant for nearly 2,000 years.
Can this article replace professional medical advice?
No. This content is educational only and should not replace diagnosis or treatment from a qualified healthcare professional.
Disclaimer
This content is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional for diagnosis and treatment.