Dong Quai: The Complete Supplement Guide

Quick Reference Card

Overview

The Basics

Dong quai is one of the most widely used herbs in traditional Chinese medicine, with a history stretching back at least 2,000 years. Its name, "Dang Gui," roughly translates to "return to order" or "state of return," reflecting the traditional belief that it restores balance to the body, particularly in women's health. It is sometimes called "female ginseng," though that nickname oversimplifies what this herb actually does [1][2].

The root of the Angelica sinensis plant is the part used medicinally, and it has been a staple in traditional formulas for menstrual irregularities, anemia, and what traditional practitioners describe as "blood deficiency." In modern supplement form, it is marketed primarily for menstrual cramps, PMS symptoms, and menopausal hot flashes, though the clinical evidence behind some of these claims is more complicated than the marketing suggests [3][4].

What makes dong quai scientifically interesting is its complex chemistry. The root contains over 70 identified compounds, including ferulic acid (an antioxidant), Z-ligustilide (which relaxes smooth muscle and crosses the blood-brain barrier), and various polysaccharides with immunomodulatory properties. These diverse compounds explain why traditional practitioners have used it for such a broad range of conditions, from circulation problems to inflammatory disorders [1][5].

One important nuance: there are actually three different Angelica species sold under the "Dong Quai" umbrella. Angelica sinensis (Chinese Dang Gui) is the most studied, Angelica gigas (Korean Dang Gui) has a different bioactive profile centered on coumarin derivatives like decursin, and Angelica acutiloba (Japanese Dang Gui) has its own distinct chemistry. These are not interchangeable, and the research findings from one species do not automatically apply to another [6].

The Science

Angelica sinensis (Oliv.) Diels, belonging to the family Apiaceae (Umbelliferae), is a perennial plant native to high-altitude regions of China, Japan, and Korea. The root, first documented in Shennong Bencao Jing (Shennong's Materia Medica, 200-300 AD), remains one of the most prescribed botanicals in Traditional Chinese Medicine (TCM) pharmacopeias [1][5].

Phytochemical analysis has identified over 70 compounds from the dried root. The primary bioactive constituents fall into three classes: phthalides (Z-ligustilide at 1.26-37.7 mg/g dry weight, n-butylidenephthalide, senkyunolide A), organic acids (ferulic acid at 0.21-3.75 mg/g dry weight), and polysaccharides (composed of fucose, galactose, glucose, arabinose, rhamnose, and xylose) [1][5]. Z-ligustilide is the predominant lipophilic constituent of the essential oil and serves as the primary marker compound for quality control alongside ferulic acid [5][7].

The closely related species Angelica gigas Nakai (Korean Dang Gui) contains a distinct bioactive profile dominated by coumarin derivatives, primarily decursin (3.3-5.9% of root dry weight) and decursinol (2.4-2.9%), with significantly different pharmacological properties including potent androgen receptor antagonism (decursin IC50 ~400 ng/mL) and anti-cancer effects via PKC activation and VEGF suppression [6][8]. Angelica acutiloba (Japanese Dang Gui, "Toki") represents a third pharmacologically distinct species [6].

Clinical applications span menstrual disorders, menopausal symptoms, anemia, cardiovascular conditions, and immune modulation. However, the majority of clinical evidence derives from multi-herb formulations rather than dong quai monotherapy, which significantly complicates efficacy assessment for the individual herb [3][4][9].

Chemical & Nutritional Identity

Common supplement forms and their characteristics:

• Dried root powder (whole herb): Traditional form containing the full spectrum of phthalides, organic acids, and polysaccharides. Most commonly used in TCM decoctions. Bioactive content varies by growing conditions, harvest timing, and drying method.
• Standardized root extract: Concentrated to specific marker compound levels (typically standardized to ligustilide or ferulic acid content). Provides more consistent dosing of active compounds.
• Liquid tincture / extract: Alcohol or water-based extraction. Different solvents preferentially extract different compounds: ethanol extracts more lipophilic phthalides, while water extracts more polysaccharides.
• Multi-herb TCM formulas: The traditional use context. Common formulas include Dang Gui Buxue Tang (with Astragalus), Xiao Yao San (with 7 other herbs), Si Wu Tang (Four-Substance Decoction), and Fo Shou San (with Ligusticum wallichii).

Mechanism of Action

The Basics

Dong quai works through several different mechanisms, which partly explains why traditional medicine has used it for such a wide range of conditions. Think of it less as a single-purpose pill and more as a botanical with multiple moving parts, each doing something slightly different in the body [1][5].

Its most well-known action involves blood flow and smooth muscle. Z-ligustilide, one of the root's primary compounds, can relax the smooth muscle in blood vessels, the uterus, and even the airways. This relaxation effect is likely behind the traditional use for menstrual cramps: if the uterine muscles are contracting less aggressively, cramping eases. The same compound can cross the blood-brain barrier, which opens the door to neuroprotective effects [5][10].

Ferulic acid, the root's main organic acid, acts as an antioxidant and anti-inflammatory agent. It reduces the production of inflammatory messengers like TNF-alpha and IL-1beta, and it blocks the NF-kB pathway, which is a central switch for inflammation in the body. This may contribute to dong quai's traditional use for inflammatory conditions and joint discomfort [1][5][11].

The herb also contains polysaccharides that interact with the immune system. These sugar-based molecules can activate certain immune cells (macrophages and B cells), stimulate antibody production, and support blood cell formation after chemotherapy or blood loss. This is the basis for the traditional "blood tonic" reputation [1][5][12].

On the hormonal front, the picture is more nuanced than the "female ginseng" label suggests. Dong quai has shown estrogenic activity in laboratory studies, meaning it can bind to estrogen receptors and mimic some of estrogen's effects. However, a well-designed clinical trial in postmenopausal women found no significant estrogenic effects at typical supplement doses [3][13]. The disconnect between lab findings and clinical results remains an area of active investigation.

The Science

The pharmacological activity of Angelica sinensis is attributable to multiple bioactive constituents operating through distinct molecular pathways:

Smooth Muscle Relaxation and Vasodilation:
Z-ligustilide (3-butylidene-4,5-dihydrophthalide) inhibits spontaneous contraction of isolated rat uterus in a dose-dependent manner (4-8 microg/mL), providing a mechanistic basis for antidysmenorrheic activity [10]. Additionally, Radix Angelica sinensis elicits vascular relaxation through both nitric oxide-dependent and calcium influx-mediated mechanisms in rat aorta [14]. The combination of Angelica sinensis with Ligusticum wallichii (Fo Shou San) produces synergistic vasodilatory effects with an EC50 of 1.08 mg/mL in a 1:1 ratio, outperforming either herb alone [6].

Anti-inflammatory Pathways:
Ferulic acid and isoferulic acid inhibit macrophage inflammatory protein-2 (MIP-2) production by murine macrophages [11]. Z-ligustilide suppresses TNF-alpha and NF-kB transcriptional activity [5]. The ethyl acetate fraction of A. sinensis suppresses NF-kB luciferase activity and decreases NO and PGE2 production in LPS/IFN-gamma-stimulated peritoneal macrophages, with in vivo confirmation of protection against endotoxic shock [5][11]. n-Butylidenephthalide attenuates LPS-stimulated dendritic cell activation via NF-kB pathway suppression [5].

Immunomodulatory Activity:
Angelica sinensis polysaccharides (ASP) demonstrate broad immunomodulatory effects. Treatment of BALB/c splenocytes with ASP (100 microg/mL) increases IL-2 and IFN-gamma production while decreasing IL-4, suggesting a Th1-polarizing effect [12]. An acidic polysaccharide fraction stimulates macrophage NO production via iNOS induction [12]. ASP enhances hematopoietic recovery after irradiation (platelet, RBC, and WBC counts) via PI3K/AKT pathway activation [12][15]. In Angelica gigas, the polysaccharide Angelan exhibits B-cell mitogenic activity and enhanced antibody production [6].

Estrogenic and Hormonal Activity:
A. sinensis ethanol extract (100-300 mg/kg) prolonged estrus in rats, with estrogenic activity attributed to Z-ligustilide [16]. Aqueous dong quai extract demonstrated estrogen-agonist activity in vitro, stimulating proliferation of both ER-positive and ER-negative breast cancer cells [13][17]. However, a randomized, double-blind, placebo-controlled trial in 71 postmenopausal women found no significant estrogenic effects of dong quai (4.5 g root equivalent/day for 24 weeks) on endometrial thickness, vaginal maturation, or FSH/estradiol levels [3].

Neuroprotective Mechanisms:
Z-ligustilide reduces malondialdehyde (MDA) levels and increases glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) activities in ischemic brain tissue [10]. It increases choline acetyltransferase activity and inhibits acetylcholinesterase in ischemic brain tissue [10]. Z-ligustilide inhibits TNF-alpha-activated NF-kB signaling, protecting against amyloid-beta peptide-induced neurotoxicity [10]. A. sinensis methanol extract attenuates Abeta1-42-induced neurotoxicity and tau hyperphosphorylation in primary cortical neurons [10]. In A. gigas, decursin activates ERK-mediated Nrf2/HO-1 signaling, conferring neuroprotection against Abeta(1-42) toxicity [6].

Anti-cancer Activity:
Multiple preclinical pathways have been identified. A. sinensis extract induces apoptosis and G0/G1 cell cycle arrest in brain tumor cell lines and decreases VEGF expression [5][18]. The three main phthalides (n-butylidenephthalide, senkyunolide A, Z-ligustilide) decrease colon cancer HT-29 cell viability dose-dependently [5]. A. sinensis polysaccharides inhibit HeLa cell growth via caspase-9/caspase-3/PARP activation [5]. A. gigas decursin shows cytotoxicity in prostate cancer cell lines through androgen receptor antagonism, PKC activation, and VEGF inhibition [6][8]. However, dong quai also promoted angiogenesis by upregulating VEGF in endothelial cells, representing a potentially counterproductive effect [17].

Hepatoprotective and CYP Interactions:
Z-ligustilide targets cysteine residues in human Keap1, activating Nrf2 and ARE-regulated gene transcription, inducing phase II detoxification enzymes including NQO1 [5]. Prolonged dong quai use can induce CYP3A4 via pregnane X receptor (PXR) activation [17]. A. gigas decursinol angelate inhibits CYP1A2, CYP2D15, and CYP3A12 in vitro [6].

Absorption & Bioavailability

The Basics

How well your body absorbs dong quai depends heavily on which active compounds you are looking at and which form of the supplement you take. The root contains both water-soluble and fat-soluble components, and they follow different paths through the digestive system [5][6].

The polysaccharides (sugar-based compounds responsible for immune effects) are water-soluble and are absorbed through the gut, though detailed human absorption data for these specific molecules remains limited. The phthalides, including Z-ligustilide (the primary active compound in Chinese dong quai), are lipophilic, meaning they dissolve better in fats and are extracted more efficiently with alcohol-based solvents than with water [5].

For Korean dong quai (Angelica gigas), animal data suggests that the main bioactive, decursinol, is nearly completely absorbed at low doses. However, decursin (the parent compound) undergoes rapid first-pass metabolism, converting almost entirely to decursinol within an hour of ingestion, with a half-life of only about 5 minutes [6]. This means the body may never see meaningful levels of decursin itself, only its metabolite.

The practical takeaway is that the extraction method matters. Traditional water-based decoctions preferentially extract polysaccharides and water-soluble organic acids. Alcohol-based tinctures and ethanolic extracts concentrate the phthalides and coumarins. Different preparations may therefore deliver fundamentally different pharmacological profiles from the same root.

The Science

Pharmacokinetic data for Angelica sinensis bioactives in humans is sparse. Most available data derives from animal models:

Z-Ligustilide (A. sinensis):
Z-ligustilide is lipophilic and crosses the blood-brain barrier in rats, where it limits ischemic brain damage [10]. It is heat-stable but water-insoluble, requiring organic solvents (hexanes, methanol, 70% ethanol, dichloromethane) for efficient extraction [5]. The amount in Danggui root varies widely (1.26-37.7 mg/g dry weight), reflecting significant variability by source, harvest, and processing [5][7].

Ferulic Acid (A. sinensis):
Ferulic acid content varies between 0.21-3.75 mg/g dry weight depending on extraction method [5]. It is widely distributed in plant foods (rice bran, wheat, barley, tomato) and is used as the primary quality-control marker for Danggui and its preparations [7].

Decursin/Decursinol (A. gigas):
Decursinol demonstrates nearly complete absorption at low doses (2 mg/kg) in Caco-2 cell models and rat studies, with efflux mediated by active transporters [6]. Following oral administration of 240 mg/kg decursin in mice, plasma Tmax for decursinol was 0.7 hours with Cmax of 14.9 +/- 9.6 microg/mL. Decursin undergoes extremely rapid first-pass metabolism (half-life 0.08 +/- 0.02 hours), converting completely to decursinol [6]. Protein binding: 82-91% bound to serum albumin in human plasma [6].

Three weeks of supplementation with A. gigas extract (250-500 mg/kg in mice) yielded a steady-state decursinol level of 0.72-1.05 microg/mL measured three hours post-dose [6].

Extraction Solvent Effects:
Decursin and decursinol angelate are extracted at dramatically higher concentrations in 50-100% ethanol (3,142-3,341 ppm and 2,547-2,778 ppm respectively) compared to water extraction (182 and 153 ppm) [6]. This has direct implications for bioavailability by supplement form: ethanolic extracts deliver substantially more of the lipophilic bioactives than traditional water decoctions.

Research & Clinical Evidence

The Basics

The research picture for dong quai is complicated by one persistent issue: most studies test dong quai as part of multi-herb formulas, not by itself. This makes it difficult to say with confidence what dong quai alone does in humans [3][4].

Menopausal Symptoms:
This is dong quai's most well-known claimed benefit, and ironically, it is where the evidence is weakest. The most rigorous study, a randomized double-blind placebo-controlled trial, found that dong quai alone (4.5 g root equivalent per day for 24 weeks) was no better than placebo for hot flashes, night sweats, or other menopausal symptoms in postmenopausal women [3]. A smaller trial also found dong quai ineffective for hot flashes in men on androgen deprivation therapy [9]. However, multi-herb formulas containing dong quai have shown more promise. A 12-week trial of EstroG-100 (containing Angelica gigas plus two other herbs) reduced menopausal symptoms to 38% of baseline versus 81% for placebo [6]. Whether the benefit came from the dong quai, the other herbs, or the combination remains unclear.

Menstrual Disorders:
Dong quai has been used traditionally for dysmenorrhea and irregular periods, and the smooth muscle relaxation mechanism provides biological plausibility. A systematic review found benefits of dong quai-containing formulas against amenorrhea induced by antipsychotic drugs [17]. Clinical data on dong quai alone for menstrual pain, however, is limited.

Blood Health and Anemia:
Traditional use as a "blood tonic" has some preclinical support. Dong quai polysaccharides enhanced hematopoietic recovery in animal models of blood loss and chemotherapy-induced bone marrow suppression [12][15]. Epidemiological data in Taiwan suggested associations between dong quai-containing herbal medicine use and reduced diabetes-related mortality in patients with hemolytic anemias [17].

Anti-cancer Research:
Preclinical studies show promising anti-tumor, pro-apoptotic, and anti-metastatic effects, but this research is entirely in cell lines and animal models. No human clinical trials on dong quai for cancer treatment have been completed. Importantly, dong quai also demonstrated pro-angiogenic effects (promoting new blood vessel formation), which could theoretically support tumor growth, making the anti-cancer picture more complex [5][17][18].

The Science

Human Clinical Trials:

A pivotal randomized, double-blind, placebo-controlled trial (n=71 postmenopausal women) evaluated dong quai monotherapy (4.5 g root/day) for 24 weeks. No significant differences from placebo were observed for Kupperman Menopausal Index scores, hot flash frequency, endometrial thickness, vaginal maturation, or serum FSH/estradiol concentrations (Hirata et al., 1997) [3].

A randomized, double-blind, placebo-controlled trial in men (n=22) on androgen deprivation therapy found dong quai (1,800 mg three times daily for 3 months) ineffective for hot flashes compared to placebo (Al-Bareeq et al., 2010) [9].

A double-blind, placebo-controlled trial of Dang Gui Buxue Tang (A. sinensis + Astragalus membranaceus) in postmenopausal Hong Kong Chinese women found no significant improvement in vasomotor symptoms over placebo (Haines et al., 2008) [4].

A randomized, double-blind, placebo-controlled trial (n=60) of EstroG-100 (Cynanchum wilfordii, Phlomis umbrosa, Angelica gigas; 257.05 mg twice daily for 12 weeks) in menopausal women demonstrated significant reduction in Kupperman Menopausal Index to 38% of baseline vs. 81% for placebo, including improvement in vaginal dryness [6].

A randomized, double-blind, placebo-controlled study (n=120) evaluating the anti-hemostatic effects of A. sinensis (2 g/day for 2 weeks) found the anticoagulant effect appeared limited in humans despite in vitro data suggesting antiplatelet activity (Fung et al., 2017) [17].

A systematic review and meta-analysis determined benefits of dong quai-containing Chinese herbal medicine formulas against amenorrhea induced by antipsychotic drugs, though the evidence quality was limited by heterogeneity in formula compositions (Liu et al., 2022) [17].

Epidemiological Data:

Population-based studies in Taiwan suggest positive associations between dong quai-containing herbal medicine use and reduced risks of overall diabetes-related mortalities in patients with hereditary hemolytic anemias [17], and reduced subsequent endometrial cancer in tamoxifen-treated breast cancer survivors [17].

Preclinical Evidence Summary:

In vitro and animal studies demonstrate anti-inflammatory effects via NF-kB suppression (ferulic acid, Z-ligustilide, n-butylidenephthalide) [5][11], neuroprotection via Nrf2/HO-1 activation and anti-amyloid mechanisms [6][10], immunomodulation via polysaccharide-mediated immune cell activation [12], anti-cancer effects via apoptosis induction and cell cycle arrest (multiple tumor cell lines) [5][18], cardioprotection against doxorubicin-induced cardiotoxicity [17], radioprotection against pneumonitis [17], and renoprotective effects in chronic kidney disease models [5]. However, these findings await human clinical validation.

Evidence & Effectiveness Matrix

Benefits & Potential Effects

The Basics

Dong quai's benefits are best understood as potential effects rather than proven outcomes, since the clinical trial evidence for dong quai as a standalone supplement remains thin. What the research and traditional use suggest, taken together, points to several areas where dong quai may have value [1][3][5].

The most commonly cited benefit is menstrual comfort. The herb's ability to relax smooth muscle tissue provides a plausible mechanism for easing cramps, and centuries of traditional use support this application. Community reports consistently describe reduced menstrual pain and improved PMS symptoms, though these reports often involve dong quai as part of a broader herbal protocol rather than taken alone [3][4].

For menopausal symptoms, the picture is more nuanced. Dong quai alone did not outperform placebo in the most rigorous clinical trial, but combination formulas containing dong quai have shown meaningful symptom reduction. This may reflect the traditional medicine perspective that dong quai works best in synergy with other herbs rather than as a solo intervention [3][6].

The herb's anti-inflammatory properties, supported by laboratory and animal studies, suggest potential benefits for inflammatory conditions. Ferulic acid and the phthalide compounds reduce key inflammatory markers, and traditional practitioners have used dong quai for joint discomfort and inflammatory disorders [5][11].

On the blood-building front, dong quai polysaccharides have demonstrated the ability to support blood cell production in animal models of anemia and bone marrow suppression. This aligns with the traditional "blood tonic" use, though human clinical data is needed to confirm these effects [12][15].

The Science

Menstrual Disorders and Gynecological Health:
Z-ligustilide inhibits spontaneous uterine smooth muscle contraction in a dose-dependent manner (4-8 microg/mL in isolated rat uterus) [10], providing mechanistic support for antidysmenorrheic effects. Systematic review evidence supports dong quai-containing formulas for antipsychotic-induced amenorrhea [17]. Epidemiological data from Taiwan (population-based cohort) suggest reduced endometrial cancer risk in tamoxifen-treated breast cancer survivors who used dong quai-containing herbal medicines [17].

Anti-inflammatory and Analgesic Effects:
Decursinol (A. gigas) demonstrates analgesic potency comparable to 200 mg/kg aspirin at 50 mg/kg oral dosing in acetic acid writhing tests in mice [6]. A. sinensis ethyl acetate extract protects mice from endotoxic shock via suppression of inflammatory mediators in vivo [11]. Anti-inflammatory activity is mediated through NF-kB inhibition, with decursin showing complete NF-kB inhibition at 80 microM [6].

Cardiovascular and Hematological Effects:
A. sinensis polysaccharides rescue hematopoietic function in irradiated and cyclophosphamide-treated mice [12][15]. Aqueous extracts promote angiogenesis via VEGF upregulation in HUVECs and zebrafish models [17]. Combination with Ligusticum wallichii (1:1 Fo Shou San formula) reduces mean arterial pressure by 7.2 +/- 1.6 mmHg in rats [6].

Neuroprotective Effects:
Z-ligustilide demonstrates neuroprotection in multiple ischemia models, improving antioxidant enzyme activity (GSH-Px, SOD) and reducing apoptotic markers (Bax, caspase-3) in brain tissue [10]. A. sinensis extract attenuates amyloid-beta peptide-induced neurotoxicity and tau hyperphosphorylation in cortical neurons [10]. A. gigas decursin activates Nrf2/HO-1 neuroprotective pathway with efficacy comparable to 5 mg/kg donepezil at 600 mg/kg extract dose [6].

Anti-adipogenic Effects:
Decursin (A. gigas) inhibits insulin-induced adipocyte proliferation and, at 200 mg/kg dietary supplementation in mice fed a high-fat diet, significantly attenuated fat gain while normalizing leptin, resistin, IL-6, and MCP-1 [6].

Reading about potential benefits gives you a framework. Seeing whether those benefits are showing up in your own body turns knowledge into confidence. Doserly lets you track the specific health markers relevant to this supplement, building a personal dataset that captures what's actually changing week over week.

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Side Effects & Safety

The Basics

Dong quai is generally considered well-tolerated at typical supplement doses, and it has a long history of safe use in traditional medicine. That said, there are several important safety considerations that anyone considering this herb should understand [3][17].

The most common side effects are gastrointestinal. Soft stool or mild diarrhea is the most frequently reported issue, and traditional practitioners consider this a known property of the herb rather than an unexpected adverse effect. Bloating and appetite loss have also been reported in clinical settings [17].

Photosensitivity is a documented concern. Dong quai contains furocoumarins (compounds also found in citrus peel and celery), which can make the skin more sensitive to sunlight. People taking dong quai should be mindful of sun exposure, particularly if they are fair-skinned or live in sunny climates [17].

The most serious safety consideration involves dong quai's potential estrogenic activity. While the clinical significance of this activity at typical supplement doses remains debated, laboratory studies have shown that dong quai can stimulate the growth of estrogen-receptor-positive breast cancer cells [13][17]. Anyone with a history of hormone-sensitive cancers (breast, ovarian, uterine, prostate) should consult with their oncologist before using dong quai.

Dong quai also has mild anticoagulant properties. One well-documented case report described potentiation of warfarin effects in a patient taking dong quai [19]. While a controlled study found this effect appeared limited in healthy humans, anyone taking blood thinners, antiplatelet drugs, or preparing for surgery should discuss dong quai use with their healthcare provider [17].

Pregnant and breastfeeding women should avoid dong quai. The herb's uterine-stimulating properties could theoretically increase the risk of miscarriage [17].

A case report described gynecomastia (breast tissue enlargement) in a male user, consistent with the herb's estrogenic properties [20]. Hypertension has also been reported in rare cases [17].

The Science

Documented Adverse Reactions (from clinical literature and case reports):

• Gastrointestinal: Bloating, appetite loss, diarrhea [17]
• Dermatological: Photodermatitis, photosensitivity (attributed to furocoumarin content) [17]
• Endocrine: Gynecomastia in a male user (Goh & Loh, Singapore Med J, 2001) [20]
• Cardiovascular: Hypertension (Nambiar et al., case report of mother and infant) [17]
• Hemorrhagic: Subarachnoid hemorrhage in a 53-year-old woman using a supplement containing red clover, dong quai, and Siberian ginseng (Friedman et al., 2007) [21]. Note: multi-herb product; attribution to dong quai alone is uncertain.
• Ophthalmological: Acute hydroxychloroquine retinopathy reported in a patient concurrently using dong quai, though causation unclear (Lian et al., 2023) [17]

Hormone-Sensitive Cancer Risk:
Dong quai showed estrogenic activity in vitro and stimulated proliferation of MCF-7 (estrogen receptor-positive) breast cancer cells in multiple studies [13][17]. In a murine model, Angelica sinensis promoted growth of ER-positive breast tumors [17]. Patients with hormone-sensitive cancers should exercise significant caution and consult with their oncologist.

Anticoagulant Effects:
A case report described potentiation of warfarin anticoagulant effect with elevated PT/INR in a patient using dong quai (Page & Lawrence, 1999) [19]. However, a randomized, double-blind, placebo-controlled study (n=120) evaluating the anti-hemostatic effects of A. sinensis (2 g/day for 2 weeks) found limited anticoagulant effects in healthy humans [17].

Drug Interactions:
CYP3A4 induction via pregnane X receptor (PXR) activation with prolonged use, potentially reducing effectiveness of CYP3A4 substrate drugs [17]. CYP1A2 inhibition by decursinol angelate (A. gigas), increasing theophylline exposure by approximately 18% [6]. Lisinopril interaction: concurrent use exacerbated anemia in a murine model [17]. Dual antiplatelet therapy (aspirin + clopidogrel): coadministration altered pharmacokinetics with increased systemic drug exposure in rats [17]. Clozapine: dong quai was a moderate-to-strong inducer of clozapine metabolism in two case reports [17].

Toxicology:
A single oral dose of isolated decursin or decursinol angelate was lethal in some ICR mice at approximately 2,500-4,000 mg/kg (estimated human equivalent: 200-320 mg/kg), though a formal LD50 was not established [6]. These doses are far above typical supplement levels.

Contraindications:
Pregnancy (uterine stimulation risk), breastfeeding, hormone-sensitive cancers (estrogenic activity), active anticoagulant therapy (additive bleeding risk), and pre-surgical period [17].

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Dosing & Usage Protocols

The Basics

Dosing dong quai is more complex than with most supplements because there is no RDA, no established upper limit, and the clinical evidence is limited. What we can present are the ranges that appear in the available research and traditional practice [3][6].

For dried root powder (the most traditional form), commonly cited doses range from 1,000 to 3,000 mg per day, typically divided into two or three doses taken with meals. The pivotal clinical trial on menopause used 4.5 g of root equivalent per day (as a standardized preparation), though this trial found no benefit over placebo [3].

For standardized root extracts, the ranges depend on what the extract is standardized to. Products standardized to ferulic acid or ligustilide content are typically dosed at 500 to 1,000 mg per day.

In traditional Chinese medicine, dong quai is rarely used alone. It is almost always combined with other herbs in specific ratios that practitioners adjust based on individual constitution and symptoms. The traditional formula Dang Gui Buxue Tang, for example, combines dong quai with astragalus in a 1:5 ratio [4]. This is worth noting because the combination formulas have shown more clinical promise than dong quai monotherapy.

There is no formal loading or cycling protocol established by research. However, traditional practice often recommends cycling dong quai relative to the menstrual cycle (taking it in the luteal phase but not during active menstruation), as practitioners caution it may increase bleeding [3].

Anyone considering dong quai supplementation should discuss it with a healthcare professional, particularly given the herb's estrogenic activity, anticoagulant properties, and drug interaction potential.

The Science

Clinical Trial Dosing:

Traditional Dosing References:

Common traditional doses for A. sinensis root: 3-15 g per day in decoction form (traditional water extraction), which yields significantly different bioactive profiles than equivalent weight of dried powder or concentrated extract [1].

Dang Gui Buxue Tang formula: A. sinensis combined with Astragalus membranaceus in a 1:5 ratio [4].

Species-Specific Considerations:

Korean dong quai (A. gigas) products, including EstroG-100, appear to be dosed at lower absolute amounts (257 mg of multi-herb combination twice daily) compared to Chinese dong quai (A. sinensis) preparations. This likely reflects the higher concentration of bioactive coumarins (decursin at 3.3-5.9% of root dry weight) relative to the phthalide content of A. sinensis [6].

Getting the dose right matters more than most people realize. Too little may be ineffective, too much wastes money or introduces risk, and inconsistency undermines both. Doserly tracks every dose you take, across every form, giving you a clear record of what you're actually consuming versus what you planned.

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What to Expect (Timeline)

Dong quai does not produce immediate, noticeable effects for most users. Based on limited clinical data and community reports, expectations should be calibrated for a gradual, subtle onset.

Weeks 1-2:
Most users report no obvious changes during this initial period. Some individuals with strong estrogenic sensitivity may notice breast tenderness or fullness, consistent with the herb's hormonal activity. One community member reported breast changes within 10 days of starting supplementation [community data]. Mild GI effects (soft stool) may appear early.

Weeks 3-4:
Some users begin to notice shifts in mood and emotional balance, particularly in the premenstrual window. One user reported "a notable difference in my mood after a month" [community data]. Menstrual cycle changes, if they occur, may begin to manifest over this period.

Months 2-3:
Community reports suggest that benefits for menstrual pain and PMS symptoms tend to become more apparent with consistent use over 2-3 months. One user reported progression from significant pain to "little to no pain" after 3-4 months [community data].

Months 3-6:
The 24-week clinical trial on menopause found no benefit over placebo, suggesting that if dong quai alone is going to produce effects on menopausal symptoms, they would have been evident within this window [3]. For combination formulas, the 12-week EstroG-100 trial showed significant symptom improvement [6].

Long-term Considerations:
There is no established guidance on maximum duration of use. Traditional medicine practitioners often cycle dong quai relative to the menstrual cycle and may adjust or discontinue based on symptom changes. Long-term safety data from controlled studies is lacking.

Interactions & Compatibility

Synergistic

• Astragalus: Traditional pairing in Dang Gui Buxue Tang. A 1:5 ratio (dong quai:astragalus) is the classical formula, used for blood tonification and immune support. The combination has been studied for chemotherapy support, hematopoietic effects, and renal protection [4][12].
• Ligusticum wallichii / Chuanxiong: Traditional pairing in Fo Shou San for cardiovascular health. A 1:1 ratio demonstrated synergistic vasodilatory effects (EC50: 1.08 mg/mL) and greater blood pressure reduction than either herb alone in rats [6].
• Ginseng: Traditional pairing in Si Wu Tang and other formulas for energy and blood building. Also appears in Shi Quan Da Bu Tang (Ten Significant Tonic Decoction).
• Black Cohosh: Both herbs are used for menopausal symptoms, though through different mechanisms. Black cohosh acts via serotonergic pathways while dong quai has estrogenic properties. Combination should be approached with caution in hormone-sensitive conditions.

Caution / Avoid

• Warfarin and other anticoagulants: Dong quai may potentiate anticoagulant effects. A documented case report described elevated PT/INR with concurrent warfarin use [19]. Clinical significance appears limited based on one controlled study, but monitoring is advised [17].
• Aspirin and clopidogrel (dual antiplatelet therapy): Animal data showed altered pharmacokinetics with increased systemic exposure to both drugs when coadministered with dong quai [17].
• Clozapine: Dong quai was identified as a moderate-to-strong inducer of clozapine metabolism in two case reports, potentially reducing drug efficacy [17].
• CYP3A4 substrate drugs: Prolonged dong quai use may induce CYP3A4 via PXR activation, potentially reducing effectiveness of substrate drugs including certain immunosuppressants, statins, calcium channel blockers, and protease inhibitors [17].
• Lisinopril (ACE inhibitors): Concurrent use exacerbated anemia in a murine model [17]. Clinical relevance uncertain but caution is warranted in patients with anemia.
• Theophylline: A. gigas decursinol angelate inhibits CYP1A2, increasing theophylline exposure by approximately 18% at high doses [6].
• Hormone replacement therapy and oral contraceptives: Given dong quai's estrogenic activity, concurrent use with exogenous estrogens may produce additive hormonal effects. Discuss with prescribing physician [13][17].
• Red Clover: Both herbs have phytoestrogenic properties. A case report of subarachnoid hemorrhage involved a product containing both red clover and dong quai [21].
• Vitex/Chasteberry: Both herbs influence hormonal balance through different mechanisms. Concurrent use should be supervised by a healthcare provider to avoid unintended hormonal effects.

How to Take / Administration Guide

Recommended forms: For general supplementation, standardized root extract capsules provide the most consistent dosing. For traditional use in combination formulas, practitioner guidance is strongly recommended. Water-based decoctions deliver more polysaccharides, while ethanolic extracts concentrate the phthalides and coumarins.

Timing considerations: Most sources suggest taking dong quai with meals to minimize GI discomfort. In traditional practice, timing relative to the menstrual cycle is considered important: dong quai is typically used during the follicular and luteal phases but avoided during active menstruation, as it may increase blood flow [community data].

Stacking guidance: Dong quai is traditionally used in multi-herb formulas rather than as a standalone supplement. Common traditional combinations include Dang Gui Buxue Tang (with astragalus in a 1:5 ratio), Si Wu Tang (Four-Substance Decoction), and Xiao Yao San (Free and Easy Wanderer). If combining with other supplements independently, avoid stacking with other phytoestrogenic herbs (red clover, black cohosh, soy isoflavones) without professional guidance.

Cycling guidance: No formal cycling protocol exists in clinical literature. Traditional practice involves cycling relative to the menstrual cycle as noted above. Some practitioners recommend periodic breaks (e.g., taking it for 3 months, then reassessing), though this is based on traditional wisdom rather than clinical evidence.

Reconstitution for powders: Traditional decoction involves simmering 3-15 g of dried root in water for 20-30 minutes. The resulting tea has a warm, slightly sweet, and aromatic flavor. Modern supplements in capsule or tablet form do not require reconstitution.

Choosing a Quality Product

Third-party certifications: Look for USP Verified, NSF Certified, or GMP-certified products. ConsumerLab has reviewed some dong quai products. For athletes, Informed Sport or NSF Certified for Sport products are preferable.

Species identification: This is the most important quality marker for dong quai. Labels should clearly identify the species (Angelica sinensis, Angelica gigas, or Angelica acutiloba), as these have meaningfully different bioactive profiles and research bases. Many products simply say "Dong Quai" without specifying species, which limits the consumer's ability to match the product to research evidence.

Standardization markers: Higher-quality A. sinensis products are standardized to ligustilide content (the primary bioactive) or ferulic acid content (used as a quality-control marker). For A. gigas products, look for decursin standardization. Products with no standardization information may have highly variable potency.

Red flags: Proprietary blends that hide individual herb doses; "Dong Quai" products that do not specify the Angelica species; claims of "hormone balancing" or "menopausal cure" that overstate the clinical evidence; products combining dong quai with many other herbs without disclosing individual amounts.

Excipient considerations: Dong quai capsules should have minimal filler. Common acceptable excipients include gelatin (capsule shell), rice flour, and vegetable magnesium stearate. Avoid products with excessive artificial colors or preservatives.

Form matters: Traditional whole root preparations deliver the full phytochemical spectrum. Ethanolic extracts concentrate lipophilic bioactives (phthalides, coumarins). Water extracts concentrate polysaccharides. The "best" form depends on which bioactive effects are most relevant to the individual's goals.

Storage & Handling

Store dong quai supplements in a cool, dry place away from direct sunlight and moisture. Dried root maintains potency longer than ground powder, as the volatile phthalide compounds (particularly Z-ligustilide) can degrade with exposure to air and heat. Z-ligustilide is heat-stable but degrades with prolonged oxidation [5].

Capsules and tablets should be kept in their original sealed containers. Once opened, use within the shelf life indicated on the label, typically 1-2 years for dried root products and standardized extracts.

Liquid tinctures should be stored in amber glass bottles away from light. Alcohol-based tinctures generally have a longer shelf life (2-5 years) than glycerin-based extracts.

Dried root intended for decoction should be stored in an airtight container in a cool location. It can remain viable for 1-2 years under proper storage conditions.

Lifestyle & Supporting Factors

Diet: Traditional Chinese medicine practitioners often recommend dong quai alongside a "blood-building" diet rich in iron-containing foods (dark leafy greens, red meat, legumes) and warming spices. Adequate dietary iron is particularly relevant given dong quai's traditional use for anemia and blood deficiency.

Exercise: Moderate exercise supports circulation, which aligns with dong quai's traditional use for promoting blood flow. However, there is no specific research on dong quai and exercise performance beyond a single animal study on A. sinensis and anti-fatigue effects.

Sun protection: Given the documented photosensitivity risk from furocoumarin content, users of dong quai should consider increased sun protection measures (sunscreen, protective clothing) during supplementation, particularly during high-UV-exposure seasons.

Stress management: Dong quai is traditionally used in stress-supportive formulas (e.g., Xiao Yao San / Free and Easy Wanderer). Supporting its traditional use with stress management practices (meditation, adequate sleep, moderate exercise) aligns with the holistic TCM framework.

Menstrual cycle awareness: For women using dong quai for menstrual-related goals, tracking the menstrual cycle is important for timing supplementation. Traditional practice suggests using dong quai during the follicular and luteal phases while avoiding it during active menstruation.

Monitoring: Given the herb's estrogenic properties and potential drug interactions, periodic check-ins with a healthcare provider are advisable, particularly for monitoring hormone levels, liver function, and coagulation parameters if relevant.

Regulatory Status & Standards

United States (FDA):
Dong quai is regulated as a dietary supplement under the Dietary Supplement Health and Education Act (DSHEA). It is not GRAS-listed as a food additive. Manufacturers must comply with current Good Manufacturing Practices (cGMP) but are not required to demonstrate efficacy before sale. The FDA has not issued specific warnings about dong quai, though general supplement caveats apply.

Canada (Health Canada):
Dong quai (Angelica sinensis) is available as a licensed Natural Health Product (NHP). Monograph-compliant products receive Natural Product Numbers (NPN). Health Canada's monograph includes indications for traditional use as a blood tonic and for menstrual irregularities.

European Union (EFSA):
Dong quai is available as a food supplement in most EU member states. No authorized health claims have been approved by EFSA for Angelica sinensis. It is not classified as a Novel Food.

Australia (TGA):
Dong quai is available as a listed complementary medicine. Products must comply with TGA guidelines for listed medicines.

Active Clinical Trials:
No currently active, large-scale clinical trials focused on dong quai monotherapy were identified at time of writing. Research continues in the context of multi-herb traditional formulas.

Athlete & Sports Regulatory Status:

• WADA: Dong quai (Angelica sinensis) is not listed on the current WADA Prohibited List. It is not categorized under any of the prohibited substance classes (S0-S9, M1-M3, P1).
• National Anti-Doping Agencies: No specific advisories from USADA, UKAD, Sport Integrity Canada, Sport Integrity Australia, or NADA Germany regarding dong quai have been identified.
• NCAA: Dong quai is not on the NCAA banned substance list. However, athletes should be cautious about supplement purity, as herbal products may contain undeclared substances.
• Athlete Certification Programs: Dong quai products certified by Informed Sport, NSF Certified for Sport, or the Cologne List would provide additional assurance of absence of contaminated substances.
• GlobalDRO: Athletes can verify the status of dong quai-containing products at GlobalDRO.com.

Regulatory status and prohibited substance classifications change frequently. Athletes should always verify the current status of any supplement with their sport's governing body, their national anti-doping agency, and a qualified sports medicine professional before use. Third-party certification (Informed Sport, NSF Certified for Sport) reduces but does not eliminate the risk of contamination with prohibited substances.

Frequently Asked Questions

Is dong quai effective for menopausal hot flashes?
Based on available clinical evidence, dong quai taken alone has not demonstrated benefit over placebo for menopausal hot flashes. The most rigorous trial (71 postmenopausal women, 24 weeks, double-blind placebo-controlled) found no significant differences. However, multi-herb formulas containing dong quai (such as EstroG-100) have shown more promising results. This distinction between monotherapy and combination therapy is important when evaluating claims about dong quai for menopause [3][6].

Is dong quai safe for women with a history of breast cancer?
This is a question that should be discussed with an oncologist. Laboratory studies have shown dong quai can stimulate the growth of estrogen-receptor-positive breast cancer cells, and an animal study showed promotion of ER-positive breast tumor growth. The clinical significance at typical supplement doses is uncertain, but most oncology sources recommend caution for individuals with hormone-sensitive cancers [13][17].

Can men take dong quai?
Dong quai is not exclusively for women, despite the "female ginseng" label. A. gigas (Korean dong quai) research has explored androgen modulation and prostate cancer cell cytotoxicity. However, estrogenic effects are a consideration for male users, and one case report documented gynecomastia in a male dong quai user [6][8][20].

What is the difference between Chinese, Korean, and Japanese dong quai?
These are three distinct species. Angelica sinensis (Chinese) contains primarily Z-ligustilide and ferulic acid. Angelica gigas (Korean) contains primarily decursin and decursinol. Angelica acutiloba (Japanese) has its own distinct profile. Research findings from one species should not be assumed to apply to another [5][6].

Does dong quai interact with blood thinners?
There is a documented case report of warfarin potentiation with dong quai use, and animal studies show altered pharmacokinetics with dual antiplatelet therapy. However, a controlled human study found limited anticoagulant effects at 2 g/day for 2 weeks. Anyone taking anticoagulants should consult with their healthcare provider before using dong quai [17][19].

Should dong quai be avoided during menstruation?
Traditional Chinese medicine practitioners generally recommend avoiding dong quai during active menstruation, as it may increase blood flow. This guidance is based on traditional practice rather than clinical trial data, but it is consistently reinforced by community practitioners [community data].

Can dong quai be taken long-term?
There is no established guidance on maximum duration of use. Long-term safety data from controlled studies is lacking. Given the herb's estrogenic activity and CYP enzyme interactions, periodic assessment by a healthcare provider is advisable during ongoing supplementation.

Does dong quai actually raise estrogen levels?
The picture is complex. Dong quai showed estrogenic activity in laboratory studies and prolonged estrus in animal models. However, a 24-week clinical trial in postmenopausal women found no changes in serum estradiol or FSH levels. Community practitioners suggest dong quai may influence how efficiently the body uses existing estrogen rather than increasing production. The mechanism and clinical significance remain under investigation [3][6][13][16].

Myth vs. Fact

Myth: Dong quai is a proven natural treatment for menopausal hot flashes.
Fact: The only rigorous clinical trial testing dong quai alone for menopause found it no better than placebo after 24 weeks [3]. While combination formulas containing dong quai have shown benefit, the evidence does not support dong quai monotherapy as a reliable hot flash remedy. The widespread marketing claim is not supported by the clinical data.

Myth: Dong quai directly increases estrogen production.
Fact: While dong quai shows estrogenic activity in laboratory settings (binding to estrogen receptors and stimulating estrogen-responsive cells), a 24-week clinical trial found no changes in serum estradiol or FSH levels [3][13]. The herb may modulate estrogen receptor sensitivity or metabolism rather than increasing estrogen production, but this distinction is not yet resolved by research.

Myth: All "Dong Quai" products are the same herb.
Fact: Three distinct Angelica species are sold under the dong quai name: Angelica sinensis (Chinese), Angelica gigas (Korean), and Angelica acutiloba (Japanese). These species contain different primary bioactives and have different research profiles. A product made from A. gigas (coumarins) has different expected effects than one from A. sinensis (phthalides). Labels that just say "Dong Quai" without specifying the species are inadequate for informed consumer decisions [5][6].

Myth: Dong quai is safe for everyone because it is natural and has been used for thousands of years.
Fact: Dong quai has documented drug interactions (with warfarin, clozapine, CYP3A4 substrates), can stimulate hormone-sensitive cancer cell growth, is contraindicated in pregnancy, and causes photosensitivity. Its long traditional use was in carefully formulated multi-herb preparations dosed by trained practitioners, not as an isolated supplement taken without professional guidance [17][19][20].

Myth: Dong quai is only for women.
Fact: While marketed primarily to women, research on A. gigas (Korean dong quai) has explored anti-cancer effects in prostate cancer cells, androgen receptor antagonism, neuroprotection, and anti-obesity effects that are relevant to both sexes. The "female ginseng" branding reflects traditional use patterns more than biological specificity [6][8].

Myth: Dong quai thins the blood like a pharmaceutical anticoagulant.
Fact: While a case report showed potentiation of warfarin and animal data suggest some anticoagulant activity, a controlled human study found limited anti-hemostatic effects at 2 g/day for 2 weeks [17][19]. The anticoagulant effect appears to be mild, but caution with anticoagulant medications is still warranted due to the theoretical risk of additive effects.

Sources & References

Clinical Trials & RCTs

[3] Hirata JD, Swiersz LM, Zell B, Small R, Ettinger B. Does dong quai have estrogenic effects in postmenopausal women? A double-blind, placebo-controlled trial. Fertil Steril. 1997;68(6):981-986.

[4] Haines CJ, Lam PM, Chung TK, et al. A randomized, double-blind, placebo-controlled study of the effect of a Chinese herbal medicine preparation (Dang Gui Buxue Tang) on menopausal symptoms in Hong Kong Chinese women. Climacteric. 2008;11(3):244-51.

[9] Al-Bareeq RJ, Ray AA, Nott L, Pautler SE, Razvi H. Dong Quai (Angelica sinensis) in the treatment of hot flashes for men on androgen deprivation therapy: results of a randomized double-blind placebo controlled trial. Can Urol Assoc J. 2010;4(1):49-53.

Systematic Reviews & Meta-Analyses

[17] Liu L, Li H, Tan G, Ma Z. Traditional Chinese herbal medicine in treating amenorrhea caused by antipsychotic drugs: Meta-analysis and systematic review. J Ethnopharmacol. 2022;289:115044. (Also used as secondary reference for MSKCC clinical summary data including Fung et al., Zhu et al., Chiu et al., and other references cited in MSKCC monograph.)

Review Articles

[1] Wei WL, Zeng R, Gu CM, Qu Y, Huang LF. Angelica sinensis in China: A review of botanical profile, ethnopharmacology, phytochemistry and chemical analysis. J Ethnopharmacol. 2016;190:116-141.

[5] Chao WW, Lin BF. Bioactivities of major constituents isolated from Angelica sinensis (Danggui). Chin Med. 2011;6:29. doi:10.1186/1749-8546-6-29. PMCID: PMC3170324.

[2] Monograph. Angelica sinensis (Dong quai). Alternative Medicine Review. 2004;9(4):429-433.

Preclinical Studies

[6] Various studies on Angelica gigas as summarized in Examine.com research review (last updated August 28, 2025). Key references include studies on decursin pharmacokinetics, neuroprotection, anti-cancer activity, and anti-obesity effects.

[8] Ng SS, Figg WD. Antitumor activity of herbal supplements in human prostate cancer xenografts implanted in immunodeficient mice. Anticancer Res. 2003;23(5A):3585-3590.

[10] Wu YC, Hsieh CL. Pharmacological effects of Radix Angelica Sinensis (Danggui) on cerebral infarction. Chin Med. 2011;6:32. PMCID: PMC3174116.

[11] Chao WW, Hong YH, Chen ML, Lin BF. Inhibitory effects of Angelica sinensis ethyl acetate extract and major compounds on NF-κB trans-activation activity and LPS-induced inflammation. J Ethnopharmacol. 2010;129:244-249.

[12] Yang T, Jia M, Meng J, Wu H, Mei Q. Immunomodulatory activity of polysaccharide isolated from Angelica sinensis. Int J Biol Macromol. 2006;39:179-184.

[14] Rhyu MR, Kim JH, Kim EY. Radix Angelica elicits both nitric oxide-dependent and calcium influx-mediated relaxation in rat aorta. J Cardiovasc Pharmacol. 2005;46(1):99-104.

[15] Liu PJ, Hsieh WT, Huang SH, Liao HF, Chiang BH. Hematopoietic effect of water-soluble polysaccharides from Angelica sinensis on mice with acute blood loss. Exp Hematol. 2010;38(6):437-45.

[16] Circosta C, Pasquale RD, Palumbo DR, Samperi S, Occhiuto F. Estrogenic activity of standardized extract of Angelica sinensis. Phytother Res. 2006;20:665-669.

[18] Tsai NM, Lin SZ, Lee CC, et al. The antitumor effects of Angelica sinensis on malignant brain tumors in vitro and in vivo. Clin Cancer Res. 2005;11(9):3475-3484.

Case Reports

[13] Liu J, Burdette JE, Xu H, et al. Evaluation of estrogenic activity of plant extracts for the potential treatment of menopausal symptoms. J Agric Food Chem. 2001;49(5):2472-2479.

[19] Page RL, Lawrence JD. Potentiation of warfarin by dong quai. Pharmacotherapy. 1999;19(7):870-876.

[20] Goh SY, Loh KC. Gynaecomastia and the herbal tonic "Dong Quai". Singapore Med J. 2001;42(3):115-116.

[21] Friedman JA, Taylor SA, McDermott W, Alikhani P. Multifocal and recurrent subarachnoid hemorrhage due to an herbal supplement containing natural coumarins. Neurocrit Care. 2007;7(1):76-80.

Government & Institutional Sources

[7] Chinese Pharmacopoeia Commission. Pharmacopoeia of the People's Republic of China. Quality control markers for Angelica sinensis: ferulic acid and Z-ligustilide.

Related Supplement Guides

Same Category (Women's Health / Traditional Herbal)

• Black Cohosh — Commonly used alongside dong quai for menopausal symptoms; acts via serotonergic rather than estrogenic pathways
• Vitex/Chasteberry — Another traditional herb for hormonal balance and menstrual health
• Red Clover — Phytoestrogenic herb used for menopausal symptoms
• Evening Primrose Oil — Used for PMS and hormonal health

Common Stacks / Pairings

• Astragalus — Traditional pairing in Dang Gui Buxue Tang (1:5 ratio dong quai:astragalus) for blood tonification and immune support
• Ginseng — Traditional pairing in multiple TCM formulas for energy and vitality
• DGL Licorice — Traditional component of Xiao Yao San formula alongside dong quai
• Maca Root — Sometimes combined for hormonal support

Related Health Goal

• Iron — Relevant for users taking dong quai for anemia or "blood deficiency"
• Magnesium — Both used for menstrual cramp relief and muscle relaxation
• Ashwagandha — Adaptogenic herb sometimes combined for stress and hormonal support
• Turmeric/Curcumin — Anti-inflammatory herb with complementary mechanisms