Furanocoumarins: Including imperatorin, isoimperatorin, bergapten, and archangelicin; contribute to anxiolytic, anti-inflammatory, and photosensitizing effects

Coumarins: Broad family of compounds with antispasmodic and vasodilatory properties

Essential oils: Including alpha-phellandrene, alpha-pinene, and other volatile compounds; responsible for the distinctive aromatic scent

Ferulic acid: Antioxidant compound shared with A. sinensis; key to neuroprotective research

Decursin: Antioxidant and anti-inflammatory compound; may contribute to cognitive benefits

Z-Ligustilide: The most important bioactive phthalide (approximately 1% of the plant); responsible for much of the fragrance and smooth muscle relaxation effects

Ferulic acid: Supports blood health, vascular function, and acts as an antioxidant; inhibits platelet aggregation

Senkyunolide A: Another phthalide contributing to anti-inflammatory and neuroprotective effects

Butylidenephthalide: Contributes to antispasmodic effects on uterine and smooth muscle

Angelica polysaccharides: Immunomodulatory compounds that support blood cell production (hematopoiesis)

Nicotinic acid, succinic acid: Additional bioactive compounds

Various vitamins and minerals: Including B vitamins, vitamin E, and trace minerals

Traditional European bitter herb used to stimulate gastric secretions and bile flow

Carminative properties help relieve gas, bloating, and intestinal cramps

Antispasmodic effects soothe smooth muscle in the digestive tract

Part of the well-studied multi-herb formulation STW 5 (Iberogast), which has demonstrated effectiveness for functional dyspepsia in clinical trials

Digestive effects from tincture or bitters can be felt within minutes due to rapid absorption

Traditional TCM use for "nourishing the blood" and regulating menstruation

Ferulic acid inhibits platelet aggregation by blocking COX and thromboxane A2 synthesis

Ligustilide relaxes uterine smooth muscle, potentially reducing menstrual cramps

Used in classical formulas for blood deficiency, fatigue, menopausal symptoms, and menstrual disorders

One study showed 39% of women taking dong quai twice daily reported improved menstrual pain and cycle regulation

Epidemiological data suggest associations between dong quai use and reduced diabetes-related mortality

Traditionally combined with astragalus in Danggui Buxue Tang for menopausal complaints, anemia, and osteoporosis support

A. archangelica combined with ferulic acid (Feru-guard) significantly improved cognitive scores in a randomized, double-blind, placebo-controlled trial in patients with mild cognitive impairment (MCI)

MMSE scores significantly better at 24 weeks; ADAS-Jcog scores improved at both 24 and 48 weeks

In Japan, over 50,000 people have taken the Feru-guard formulation with no serious adverse events reported

Feru-guard also reduced behavioral and psychological symptoms in patients with frontotemporal dementia and Lewy body dementia

Ferulic acid may destabilize amyloid-beta fibrils and inhibit aggregation (a key Alzheimer's mechanism)

A. archangelica contains imperatorin and isoimperatorin, which inhibit acetylcholinesterase (the same enzyme target as Alzheimer's drugs like donepezil)

A. sinensis polysaccharides and volatile oils showed neuroprotective effects in rodent models of brain injury and vascular dementia

Preclinical studies showed significant anxiolytic (anti-anxiety) effects comparable to diazepam in animal models

Effects observed in elevated plus-maze, elevated T-maze, and forced swimming tests

A. sinensis may have serotonergic activity, with research suggesting it contains serotonin receptor ligands

May explain traditional reports of improved mood and emotional well-being

A. sinensis enhances blood circulation, a cornerstone of its traditional use

Ferulic acid protects vascular health and promotes blood-forming (hematopoietic) function

Polysaccharides from A. sinensis stimulated blood cell production in mice with acute blood loss

A. sinensis water extracts promoted angiogenesis in laboratory studies

A. archangelica showed liver-protective effects in ethanol-treated mice

Ligustilide and ferulic acid demonstrate COX-2 inhibitory activity

Multiple isolated compounds show anti-inflammatory effects in laboratory and animal studies

Traditional use for arthritis-like pain, nerve pain, and rheumatic conditions

Ferulic acid protects cartilage by reducing inflammatory cytokines in osteoarthritis models

Respiratory support: Traditional use for coughs, bronchitis, and asthma; ligustilide inhibits bronchospasm

Antimicrobial properties: Essential oil from A. archangelica shows antibacterial and antifungal activity

Antitumor activity: A. archangelica leaf and fruit extracts showed antiproliferative effects in laboratory studies; A. sinensis extract killed glioblastoma cells in vitro (though human translation is not established)

Radioprotective effects: A. archangelica extract showed protection against oxidative stress from radiation in animal studies

Hepatoprotective effects: Both species show liver-protective properties in preclinical studies

Dried root/rhizome: 3-6 grams per day in divided doses (traditional recommendation)

Tincture: 1-2 mL, 3 times daily (1:5 in 45% alcohol)

Tea/infusion: 1-2 teaspoons of dried root steeped in hot water, 2-3 times daily

Feru-guard formulation (for cognitive support): 200 mg ferulic acid + 40 mg A. archangelica extract daily, split between morning and evening doses (clinical trial dosage)

As part of Iberogast: Follow product-specific dosing for digestive support

Dried root: 3-6 grams per day in divided doses

Capsules/tablets: 500-2,000 mg per serving; most supplements fall in this range

Tincture: 1-2 mL, 3 times daily

Decoction (traditional TCM): Root sliced and simmered in boiling water; typically part of multi-herb formulas

Combination products: In clinical studies, doses up to 150 mg daily were safely used in multi-ingredient formulations

Quality standard: Products should contain at least 0.05% ferulic acid and 0.1-0.6% ligustilide

No universally accepted standard dose exists for either species

Traditional Chinese Medicine almost always uses dong quai in combination with other herbs, not as a standalone

Different parts of the A. sinensis root (head, body, tail) are traditionally believed to have different effects

Start at the lower end of the dosage range and increase gradually

Do not exceed recommended doses; poisoning has been reported with high doses of angelica essential oils

For digestive support (A. archangelica): 15-30 minutes before meals; bitters and tinctures work especially fast for bloating and appetite stimulation

For menstrual support (A. sinensis): Traditionally taken daily throughout the cycle, or as directed by a TCM practitioner based on cycle phase

For cognitive support (Feru-guard): Before breakfast and before dinner (split dosing used in the clinical trial)

For anxiety/mood support: Morning and evening for sustained effect

For circulatory support: With meals, divided into 2-3 doses throughout the day

Tinctures and bitters: Best taken before meals on a relatively empty stomach for digestive benefits

Capsules and tablets: With food to reduce potential stomach upset

Tea/decoction: Can be taken with or without food

Essential oil products: Should only be used as directed; never ingest undiluted essential oil

Dried root: For teas, decoctions, or powdering into capsules

Capsules/tablets: Most convenient; check species on label

Liquid tinctures/extracts: Fast absorption, especially for digestive and acute use

Essential oil: For aromatherapy or topical use only (diluted); not for internal use at high doses

Multi-herb formulas: Especially common for dong quai in TCM preparations

Ligustilide and ferulic acid are primarily metabolized by CYP3A4, CYP1A2, CYP2C8, and CYP2C9 enzymes

Individual genetic variation in these enzymes may affect how strongly a person responds to angelica

Decoctions (traditional boiling method) produce different compound profiles than raw or alcohol extracts; decoctions have less ligustilide but more phenolic acids

Alcohol-based processing (stir-frying with wine, traditional TCM method) changes the ratio of active compounds

Black pepper increases the bioavailability of ferulic acid by approximately 169%, so combining with piperine may enhance effects

Short-term therapeutic use (2-8 weeks) is most common for specific complaints

Feru-guard cognitive studies ran for 48 weeks with good safety

Dong quai in TCM is sometimes used long-term as part of ongoing formulas, but always under practitioner guidance

Discontinue at least 2 weeks before any scheduled surgery

Smooth muscle relaxation: Ligustilide and butylidenephthalide (A. sinensis) relax uterine and bronchial smooth muscle, explaining antispasmodic, antimenstrual cramp, and antiasthmatic effects

Uterine stimulation vs. relaxation: The volatile oil components (ligustilide, butylidenephthalide) are antispasmodic, while water-soluble components may stimulate uterine muscle; this dual action is why different preparations can have different effects

COX and thromboxane inhibition: Ferulic acid blocks cyclooxygenase and thromboxane A2 synthesis, inhibiting platelet aggregation and reducing inflammation (similar mechanism to aspirin, but milder)

Acetylcholinesterase inhibition: Imperatorin and isoimperatorin from A. archangelica inhibit the enzyme that breaks down acetylcholine, potentially supporting memory and cognitive function

Amyloid-beta modulation: Ferulic acid destabilizes amyloid-beta fibrils and inhibits their aggregation, offering a potential mechanism for Alzheimer's disease protection

Serotonergic activity: A. sinensis extracts show binding to serotonin receptors, which may explain reported mood and hot flash improvements

Hematopoietic stimulation: A. sinensis polysaccharides promote blood cell production by stimulating bone marrow, supporting the traditional "blood nourishing" claim

Immunomodulation: Polysaccharides from both species can stimulate immune responses including macrophage activation

GABA and CNS modulation: A. archangelica furanocoumarins appear to modulate central nervous system activity, producing anxiolytic effects in animal models

Bitter receptor stimulation: A. archangelica compounds activate bitter taste receptors in the gut, stimulating digestive secretions

A. sinensis showed estrogenic activity in vitro and stimulated estrogen receptor-positive breast cancer cell proliferation in laboratory studies

However, clinical trials in humans showed no effect on endometrial thickness or estrogen/estradiol levels when used alone

A. sinensis may NOT be a true phytoestrogen; its effects may be mediated through serotonergic pathways instead

This remains an area of active debate and research

Astragalus (Huang Qi): The classic TCM pairing in Danggui Buxue Tang; together they support blood production, immune function, and menopausal symptoms

Black pepper/Piperine: Increases ferulic acid bioavailability by approximately 169%

Ferulic acid: Combined with A. archangelica in the Feru-guard formulation for cognitive support; the 5:1 ratio (ferulic acid to angelica extract) used in clinical trials

Fennel: Complementary digestive support alongside angelica's bitter profile; helpful for bloating and gas

Ginger: Warming circulatory and digestive support; pairs well with angelica during cold months

White peony root (Bai Shao): Classic TCM combination with dong quai for menstrual pain and blood nourishment

Vitamin B12 and Iron: Complementary blood-building support alongside dong quai's hematopoietic effects

Chamomile: Combined with dong quai in a clinical trial, the combination reduced hot flash frequency and severity in menopausal women

Cognitive support: A. archangelica + ferulic acid (Feru-guard formulation)

Digestive protocol: A. archangelica + fennel + ginger + peppermint

Women's blood support (TCM): Dong quai + astragalus + white peony

Menopausal support: Dong quai + chamomile + black cohosh (multi-herb formulas studied)

Circulatory warming: Angelica + ginger + cinnamon

Anti-inflammatory support: Angelica + turmeric/curcumin + omega-3

Blood thinners (Warfarin/Coumadin): A. sinensis inhibits platelet aggregation and may significantly increase bleeding risk; potentially fatal bleeding events have been suspected; do NOT combine without physician supervision

Antiplatelet drugs (Aspirin, Clopidogrel): Additive bleeding risk due to dong quai's COX inhibition and antiplatelet effects

Medications with grapefruit warnings: Both Angelica species contain furanocoumarins (the same class of compounds in grapefruit that interfere with drug metabolism); this can affect statins, calcium channel blockers, certain anti-seizure medications, immunosuppressants, and many others

CYP3A4-metabolized drugs: Angelica may inhibit this enzyme, potentially increasing drug levels and side effects

CYP2C9-metabolized drugs: Similar enzyme inhibition concern

Blood pressure medications: A. sinensis may raise blood pressure in some individuals, potentially counteracting antihypertensive drugs

Estrogen-sensitive medications (Tamoxifen, hormone replacement therapy): Due to potential estrogenic activity of A. sinensis; use only under medical guidance

Antipsychotic medications: Potential enzyme interactions

Photosensitizing drugs: Both species (especially A. archangelica) increase skin sensitivity to sunlight; combining with other photosensitizing drugs increases burn risk

Other blood-thinning herbs (ginkgo, garlic, fish oil in very high doses) may compound antiplatelet effects

Estrogen-modulating herbs (black cohosh, red clover, soy isoflavones) if using dong quai

Self-treating any medical condition with angelica without healthcare provider guidance

High doses of angelica essential oil (poisoning has been reported)

Confusion between Angelica species and the extremely toxic water hemlock (Cicuta maculata), which looks similar

People with chronic digestive issues (bloating, gas, indigestion, dyspepsia)

Older adults concerned about cognitive decline or mild cognitive impairment

Individuals seeking natural anxiety or nervousness support

Those looking for respiratory support for coughs or bronchitis

People interested in traditional European herbal medicine approaches

Women experiencing menstrual irregularities, cramps, or painful periods

Women going through menopause (as part of multi-herb formulas)

Individuals with fatigue, weakness, or signs of poor blood circulation

People seeking natural support for blood health and production

Those following Traditional Chinese Medicine protocols under practitioner guidance

People seeking anti-inflammatory support for joint or muscle pain

Individuals interested in ferulic acid's antioxidant and neuroprotective properties

Those looking for gentle immune support

People on blood thinners (Warfarin, Coumadin, Heparin): Without explicit physician approval and INR monitoring

Pregnant women: Both species have effects on uterine muscle; A. sinensis has documented emmenagogue (menstruation-promoting) effects that may be harmful to pregnancy; adverse effects during pregnancy have been documented

Breastfeeding women: A case of hypertension was reported in a 3-week-old breastfed infant whose mother consumed dong quai; insufficient safety data exists

People with estrogen-sensitive conditions (breast cancer, uterine cancer, ovarian cancer, endometriosis, uterine fibroids): A. sinensis showed estrogenic activity in vitro and promoted estrogen receptor-positive breast tumor growth in animal models; avoid without oncologist approval

People with bleeding disorders: Due to antiplatelet effects

Individuals allergic to plants in the Apiaceae family (carrots, celery, parsley, fennel): Cross-reactivity is possible

People with high blood pressure: A. sinensis may raise blood pressure in some individuals; suspected cardiac issues reported at high doses

Heart disease patients: High-dose A. sinensis has been suspected of causing cardiac problems in isolated reports

Those scheduled for surgery: Discontinue both species at least 2 weeks before non-urgent surgery due to bleeding risk

People with significant sun exposure: Both species (especially A. archangelica furanocoumarins) increase photosensitivity; wear sunscreen and protective clothing

Anyone taking medications with grapefruit warnings: Consult healthcare provider before use

Children: Insufficient safety data; avoid medicinal doses

People with diabetes on medication: Dong quai may affect blood sugar; monitor closely

Feru-guard (A. archangelica + ferulic acid) significantly improved cognitive test scores in a double-blind, placebo-controlled trial in MCI patients, with benefits sustained through 48 weeks

Feru-guard reduced behavioral and psychological symptoms in patients with Lewy body dementia and frontotemporal dementia in an open-label trial

A. archangelica extracts showed anxiolytic effects comparable to diazepam in multiple animal models

STW 5 (Iberogast), which contains A. archangelica, demonstrated effectiveness for functional dyspepsia in clinical meta-analysis

A. sinensis showed antiplatelet and blood-supporting effects confirmed in laboratory and animal studies

Ferulic acid's antioxidant, anti-inflammatory, and neuroprotective properties are well-documented across numerous studies

A. sinensis hematopoietic (blood-building) effects confirmed in animal models

Thousands of years of documented use in both European and Chinese medical traditions

Digestive relief often felt within minutes when using tinctures or bitters

Women across Asia have reported menstrual cycle regulation and pain relief with dong quai formulas

Herbalists consistently report warming, circulation-enhancing effects

TCM practitioners widely prescribe dong quai combinations for fatigue and blood deficiency patterns

Photosensitivity: Increased skin sensitivity to sunlight; risk of sunburn, especially with A. archangelica (furanocoumarins)

Digestive upset: Burping, gas, or mild stomach discomfort, especially at higher doses

Blood pressure changes: A. sinensis may increase blood pressure in some individuals

Skin allergic reactions: Contact dermatitis or hypersensitivity reported in some users

Bleeding risk: Significant concern when combined with anticoagulant or antiplatelet medications; a case of multifocal subarachnoid hemorrhage was associated with natural coumarin-containing herbal supplements

Cardiac issues: Suspected cases of heart problems with high-dose A. sinensis supplements

Drug interactions: The furanocoumarin content creates grapefruit-like drug interaction potential across many medication classes

Estrogenic activity: A. sinensis stimulated estrogen receptor-positive breast cancer cell growth in laboratory and animal studies

Hypertension in breastfed infants: One documented case linked to maternal dong quai consumption

Poisoning from essential oil: High doses of angelica essential oils have caused toxicity

Many products labeled "angelica root" do not specify which species is used

Adulteration with other Angelica species or similar-looking plants is documented

A. sinensis is endangered due to excessive wild harvesting; cultivated sources are preferable

Contamination risks include pesticides, fungal toxins, heavy metals, and dangerous plant alkaloids

The plant can be confused with the extremely toxic water hemlock (Cicuta maculata)

A small clinical trial of A. archangelica leaf extract found no increase in blood pressure or heart rate during 8 weeks of use

Over 50,000 people in Japan have taken over 1.2 million boxes of Feru-guard with no serious adverse events reported

The FDA regards dong quai as generally safe based on low toxicity observed in animal studies

Chronic indigestion, bloating, gas, or loss of appetite

Mild cognitive impairment or age-related memory concerns

Anxiety, nervousness, or restlessness

Chronic coughs or respiratory congestion

Rheumatic or arthritic joint pain

Painful or irregular menstrual cycles

Menstrual cramps that interfere with daily function

Fatigue, pallor, or weakness associated with poor blood quality

Menopausal symptoms (hot flashes, mood swings, sleep disturbances) when used in combination formulas

Poor circulation, cold hands and feet

Post-illness or postpartum recovery with weakness and exhaustion

Digestive sluggishness, especially low appetite and bloating before meals

Family history of cognitive decline or Alzheimer's disease

Menstrual difficulties not adequately managed by conventional approaches

General fatigue with poor circulation, especially in colder months

Interest in traditional European or Chinese herbal medicine approaches

Photodermatitis: The most common adverse reaction; furanocoumarins cause severe skin reactions when exposed to UV light

Essential oil toxicity: Poisoning reported with high doses of angelica essential oils; symptoms may include nausea, vomiting, and CNS effects

Amyloid-beta concern: One preclinical study raised the possibility that some angelica compounds might increase formation of amyloid-beta peptides; clinical significance is unknown

LD50 (acute toxicity): Greater than 600 mg/kg for A. archangelica extracts in rodents, indicating relatively low acute toxicity

Excessive bleeding: The most serious toxicity concern; antiplatelet effects can lead to dangerous hemorrhage, especially combined with blood thinners

Blood pressure elevation: May increase blood pressure at higher doses

Cardiac toxicity: Suspected at very high doses

Hypertension in nursing infants: Documented in one case report

LD50: Generally considered low toxicity; FDA regards it as generally safe

Essential oils from both species can be toxic at high doses and should never be ingested undiluted

Fresh plant material can cause photodermatitis on skin contact followed by sun exposure

The plant resembles water hemlock (Cicuta maculata), which is extremely toxic; proper identification is critical for wild-harvested material

Choose A. archangelica if your primary goals are digestive support, cognitive protection, anxiety relief, or respiratory support

Choose A. sinensis (Dong Quai) if your primary goals are menstrual health, blood support, circulatory enhancement, or menopausal symptom relief

Always verify the species on the product label; if the species is not listed, contact the manufacturer or choose a different product

Do NOT assume products labeled simply "angelica root" contain the species you want

Tinctures and bitters: Best for acute digestive relief; fast-acting

Capsules/tablets: Most convenient for daily dosing; look for standardized products

Decoctions: Traditional TCM preparation for dong quai; changes the compound profile compared to raw or alcohol extracts

Feru-guard formulation: Specific product for cognitive support; 200 mg ferulic acid + 40 mg A. archangelica extract

Multi-herb formulas: Dong quai is traditionally and most effectively used in combination with other herbs, not alone

The way angelica root is processed significantly affects which compounds are present

Decoctions (boiling in water): Less ligustilide and ferulic acid, but more phenolic acids

Alcohol extracts: Higher concentration of volatile oils and lipophilic compounds

Stir-frying with wine (traditional TCM): Alters compound ratios and may enhance certain blood-moving properties

Raw/dried: Retains the broadest spectrum of compounds

In TCM, dong quai is almost never used alone; it is always prescribed as part of multi-herb formulas tailored to the individual

Western supplements often sell dong quai as a standalone product, which may explain why some Western clinical trials showed less impressive results

The multi-herb approach may be more effective because the herbs are chosen to complement and balance each other's effects

If interested in dong quai for women's health, consulting a qualified TCM practitioner for a personalized formula is ideal

Both species increase photosensitivity due to furanocoumarin content (more so with A. archangelica)

Wear broad-spectrum sunscreen (SPF 30+) when using angelica products

Avoid tanning beds and prolonged sun exposure during supplementation

This effect can last for some time after discontinuing the supplement

A. sinensis is endangered due to overharvesting from wild populations

Choose products made from cultivated (farmed) plants rather than wild-harvested

Sustainable sourcing helps preserve this important medicinal plant for future use

Feru-guard (A. archangelica + ferulic acid) improving cognitive scores in MCI (multicenter, randomized, double-blind, placebo-controlled trial)

STW 5 (Iberogast, containing A. archangelica) for functional dyspepsia (meta-analysis of clinical trials)

Ferulic acid's antioxidant and anti-inflammatory properties (extensive laboratory and animal research)

Dong quai's antiplatelet activity (well-documented mechanism through COX and thromboxane A2 inhibition)

Safety profile of Feru-guard (over 50,000 users, no serious adverse events)

A. archangelica anxiolytic effects (multiple animal models, no human trials yet)

Dong quai for dysmenorrhea (reviews suggest evidence exists, but studies are short and low quality)

A. sinensis hematopoietic (blood-building) effects (animal studies)

Anti-inflammatory and pain-relieving properties (laboratory and animal data)

Feru-guard for behavioral symptoms in Lewy body and frontotemporal dementia (open-label trial)

Dong quai alone for menopausal hot flashes (multiple placebo-controlled trials found no significant difference from placebo when used as a single agent)

Direct hormonal effects of dong quai in humans (clinical trials showed no effect on estrogen levels or endometrial thickness)

Anticancer effects in humans (only laboratory and animal data)

Blood pressure effects (conflicting reports; some data suggest it may raise blood pressure)

A. archangelica for smoking cessation, excessive nighttime urination, or rheumatoid arthritis

Most clinical evidence for cognitive benefits comes from a single research group in Japan; independent replication is needed

Nearly all dong quai human studies used multi-herb formulas, making it impossible to isolate dong quai's individual contribution

Very few well-designed Western-style clinical trials exist for either species used alone

Human pharmacokinetic data are limited

Long-term safety studies beyond 48 weeks are scarce

Angelica root is a promising traditional herb with specific areas of emerging clinical support, particularly for cognitive health (A. archangelica + ferulic acid) and digestive health (as part of Iberogast)

Dong quai's reputation as "female ginseng" is supported more by centuries of traditional use and multi-herb clinical experience than by rigorous standalone clinical trials

Both species carry meaningful drug interaction risks that require careful attention

Research is growing, but high-quality human trials for most claimed benefits remain limited