Dong Quai
Important Disclaimer
This is not medical advice. Consult a qualified healthcare provider before using any remedy, especially if pregnant, breastfeeding, on medication, or managing a health condition.
Overview
Dong Quai is the third most used herb in Traditional Chinese Medicine (after ginseng and astragalus) and considered the premier herb for women's health. Its phthalides and ferulic acid provide anti-spasmodic, circulation-enhancing, and mildly estrogenic activity. Clinical research supports use for menopausal symptoms, dysmenorrhea, and as a blood tonic.
Traditional Use
Used in Traditional Chinese Medicine for over 2,000 years. Dang Gui is the most widely prescribed herb for women's health conditions in Chinese medicine — used in blood-building formulas for menstrual irregularity, anemia, and menopausal symptoms. Classical TCM texts describe it as moving and nourishing blood simultaneously. It is also used in cardiovascular formulas. Important ingredient in the classic formula Si Wu Tang (Four Substance Decoction).
Key Active Compounds
Z-Ligustilide and Other Phthalides
Primary volatile compounds providing antispasmodic effects on uterine muscle — both relaxing uterine spasm (menstrual cramps) and potentially stimulating uterine contractions. This dual activity depends on dose and context, explaining both the anti-dysmenorrhea and emmenagogue effects.
Ferulic Acid
A phenolic acid with significant antioxidant, anti-platelet aggregation, and anti-inflammatory activity. Enhances blood flow and provides cardiovascular protection.
Evidence-Based Benefits
Menstrual Cramps and Irregularity
Traditional useLong-standing clinical use in TCM — often in combination formulas. Anti-spasmodic effect on uterine muscle reduces cramping. Regulates menstrual cycle when used consistently.
Menopausal Symptoms
Traditional usePhytoestrogen activity may reduce hot flashes and menopausal discomfort. Clinical studies have shown mixed results when used alone; better evidence for combination TCM formulas.
Blood Building and Anemia
Traditional useTCM 'blood tonic' classification. Ferulic acid improves red blood cell function and iron utilization. Traditional use for postpartum recovery and anemia.
Common Preparation Methods
Decoction (Traditional TCM)
Simmer 6–15g of dried Dong Quai root slices in 3 cups water for 30–45 minutes.
Dosage: 1–2 cups daily, taken consistently for 4–8 weeksTraditionally never used alone — always as part of a formula. The most effective and historically validated approach. Add with other blood-tonifying herbs for best results. Strong distinctive aroma.
Capsule/Powder
Use 500–1000mg standardized powder.
Dosage: 500–1000mg twice daily with foodLess potent than the decoction but more convenient. Best for mild menstrual support.
Safety & Cautions
Please read carefully before use
Contraindications
- Pregnancy — potential uterine stimulant; AVOID
- Excessive menstrual bleeding — may worsen
- Hormone-sensitive cancers (estrogen receptor positive) — phytoestrogenic; consult oncologist
- Pre-surgery — anticoagulant activity; discontinue 2 weeks prior
Drug Interactions
- Warfarin — significantly potentiates anticoagulant effect; AVOID or closely monitor
- Estrogen therapy — additive estrogenic effect; monitor
Possible Side Effects
- May increase photosensitivity — use sun protection
- Nausea, loose stools — take with food
- Rarely: prolonged use may cause menstrual flow changes
Special Populations
- Women's herb — avoid in men or postmenopausal women with hormone-sensitive conditions without guidance
- Avoid in pregnancy absolutely
Sources & References
Journal of Alternative and Complementary Medicine
Quick Reference
Apiaceae
Root (dried, whole or sliced)
Warm, sweet, earthy, and slightly spicy with a characteristic aromatic quality reminiscent of celery and anise
Safety First
Always consult with a qualified healthcare provider before starting any new remedy, especially if you have existing health conditions or take medications.