Mugwort
AsteraceaeArtemisia vulgaris
Also known as: Common Mugwort, Felon Herb, Wild Wormwood
clinical_notes Clinical Summary
Mugwort (Artemisia vulgaris) is a powerful emmenagogue, bitter digestive tonic, and the most important herb in moxibustion practice.
Its camphor-rich volatile oil, sesquiterpene lactones, and flavonoids collectively produce anti-inflammatory, antimicrobial, and smooth-muscle modulating effects.
Traditionally the Mother of Herbs in medieval Europe and cornerstone of TCM moxibustion, it is clinically indicated for cold-pattern dysmenorrhoea, menstrual irregularity, and digestive complaints, but is absolutely contraindicated in pregnancy due to its uterotonic and historically abortifacient action.
Pregnancy Safety
Absolutely contraindicated throughout pregnancy. Documented uterine stimulant and historical abortifacient. Do not use.
Lactation Safety
Insufficient safety data. Volatile oils including thujone may pass into breast milk. Avoid during breastfeeding.
warning Contraindications
- Pregnancy (contraindicated)Clinically Proven
- Allergy to Asteraceae / ragweed (avoid)Clinically Proven
- Epilepsy (caution)Theoretical
vital_signs Clinical Profile
Primary Indications
- check_circle dysmenorrhoea
- check_circle amenorrhoea
- check_circle irregular menstruation
- check_circle IBS
- check_circle indigestion
- check_circle loss of appetite
- check_circle anxiety
- check_circle insomnia
- check_circle moxibustion (TCM practice)
- check_circle hypertrophic scars (topical)
Therapeutic Actions
System Affinities
- check_circle digestive
- check_circle female reproductive
- check_circle nervous system
- check_circle hepatic
labs Active Constituents
volatile oil
sesquiterpene lactones
flavonoids
coumarins
tannins
polysaccharides
history_edu Traditional Use
Traditional Chinese Medicine (TCM)
艾葉 (Ai Ye)
Nature: warm
- Cold obstruction in uterus causing dysmenorrhoea
- Abnormal uterine bleeding
- Miscarriage prevention (in cold patterns)
- Abdominal cold pain
- Moxibustion stimulation of acupuncture points
Ai Ye (Artemisia argyi is most used in TCM; A. vulgaris is the Western equivalent) warms the meridians, stops bleeding, and disperses cold. Used in moxibustion where rolled dried mugwort is burned near acupuncture points.
Traditional Uses Across Healing Systems
While many herbs lack controlled clinical trials, centuries of traditional practice across cultures provide valuable insight into their therapeutic applications.
Primary herb for moxibustion; used internally to warm the uterus, stop bleeding, and treat cold dysmenorrhoea. Classic formula ingredient for menstrual regulation.
Artemisia argyi is the primary species in Chinese TCM; Artemisia vulgaris is the Western equivalent used similarly.
Emmenagogue for irregular or suppressed menstruation; bitter digestive tonic; nervine for anxiety, insomnia, and mild depression; vermifuge for parasites
Historically placed in travellers shoes to prevent fatigue. Used in European folk medicine for female reproductive complaints.
Chumash Indians of California used it for PMS, dysmenorrhoea, and menopausal symptoms via a serotonergic sesquiterpene mechanism
Also used by various North American tribes for fever, digestive complaints, and nervous conditions.
Liver tonic and anti-inflammatory; preparations like Arq-e-Afsanteen used for liver obstruction, enlarged liver/spleen, and as a liver tonic in chronic fever
Multiple Unani preparations based on Artemisia vulgaris.
spa Parts Used
leaf
- dysmenorrhoea
- digestive disorders
- moxibustion
Leaves harvested when flowering starts (July-September) for highest volatile oil content. Dried for teas and tinctures; rolled into moxa sticks for moxibustion.
root
- energy tonic
- fatigue
- adaptogen (traditional)
Root used as a tonic preparation; decocted for fatigue and debility.
shield Safety
Contraindications — Evidence Basis
Pregnancy
Strongly contraindicated throughout pregnancy. Thujone content stimulates uterine contractions; historically used as an abortifacient. Multiple case reports of pregnancy complications.
Allergy to Asteraceae / ragweed
Mugwort pollen is a potent aeroallergen with cross-reactivity to celery, carrot, birch pollen, hazelnut, kiwi (Mugwort-celery-birch syndrome). Oral allergy symptoms possible.
Epilepsy
Thujone at high doses can lower seizure threshold. Avoid in seizure disorders.
Toxicity
Essential oil is highly toxic; thujone poisoning reported from essential oil ingestion. Leaf preparations at standard doses generally safe short-term.
Seizures, kidney damage, liver toxicity (essential oil ingestion). Standard leaf preparations: nausea, allergic reactions.
Essential oil ingestion: emergency supportive care, anticonvulsant therapy if seizures. Discontinue herb preparations if adverse reactions occur.
Adverse Effects
CYP Metabolism
Coumarins (scopoletin) may have mild CYP interactions. No clinically significant CYP interactions established for leaf preparations.
swap_horiz Interactions
Warfarin
Class: Anticoagulant
Artemisia vulgaris (mugwort) contains coumarin derivatives including scopoletin, which may exhibit anticoagulant properties and additively increase the effects of warfarin. Additionally, mugwort promotes blood circulation, which may further potentiate anticoagulation and increase the risk of bleeding.
Patients on warfarin or other oral anticoagulants should avoid mugwort preparations. If concurrent use occurs, monitor INR closely. Counsel patients on bleeding signs. Coumarin-containing herbs should generally be avoided with warfarin.
Anticonvulsants (Phenytoin, Carbamazepine, Valproate)
Class: Anticonvulsant
Mugwort contains thujone (though at lower levels than A. absinthium), which acts as a GABA-A receptor antagonist and can lower the seizure threshold. This may partially counteract the anticonvulsant effects of anti-epileptic drugs. Additionally, coumarins in mugwort may affect CYP-mediated metabolism of some anticonvulsants.
Patients with epilepsy should avoid mugwort preparations. Inform neurologists if patients report using mugwort. Monitor seizure frequency if co-administration occurs. Thujone-containing preparations carry specific risk in epilepsy.
CNS Depressants / Sedatives (Opioids, Barbiturates)
Class: CNS Depressant
Mugwort has demonstrated mild sedative and CNS depressant properties in traditional use. The thujone content modulates GABA receptor activity. Combined use with opioids, barbiturates, sedating antihistamines, or other CNS depressants may produce additive sedation and respiratory depression.
Advise patients to avoid combining mugwort with CNS depressants including opioid analgesics, sedative-hypnotics, or alcohol. Increased drowsiness may impair driving ability. Exercise caution peri-operatively.
Aspirin / NSAIDs
Class: NSAID / Antiplatelet
Mugwort contains coumarin derivatives that have mild antiplatelet and blood-thinning properties. When combined with aspirin or NSAIDs, which inhibit cyclooxygenase and platelet function, there may be additive inhibition of platelet aggregation and increased bleeding risk.
Patients using aspirin, ibuprofen, naproxen, or other NSAIDs should exercise caution with mugwort preparations. Risk is particularly relevant for patients using aspirin for cardiovascular prophylaxis or chronic NSAID therapy. Discontinue mugwort before surgery.
Antidiabetics (Insulin, Metformin)
Class: Antidiabetic
Mugwort bitter principles and sesquiterpene lactones stimulate bile secretion and digestive enzyme activity, which may modestly affect glucose absorption and utilisation. Traditional use in Chinese medicine for blood glucose management suggests mild hypoglycaemic activity that could be additive with antidiabetic medications.
Monitor blood glucose when patients begin using mugwort alongside antidiabetic drugs. The interaction is likely minor but patients on insulin or sulfonylureas should be aware of potential additive hypoglycaemia. Report any unexplained low blood glucose episodes.
hub Combinations
Synergistic pairings can enhance therapeutic outcomes, while knowing suitable substitutes helps when specific herbs are unavailable or contraindicated.
Synergistic Combinations
2Cramp Bark
Traditional UseWestern herbal antispasmodic combination for dysmenorrhoea; Cramp Bark relaxes uterine smooth muscle while Mugwort regulates menstrual flow and reduces cramping.
Traditional Western herbal medicine combination for painful menstruation.
Fennel
Traditional UseDigestive bitter-carminative combination; Mugwort stimulates digestive secretions while Fennel relieves gas and intestinal spasm. Classic bitter-aromatic formula.
Traditional European combination for functional digestive disorders.
Traditional Pairings
1Dong Quai
Traditional UseClassic Chinese gynaecological pairing; Dong Quai nourishes Blood and regulates the menstrual cycle while Mugwort warms the uterus and moves Qi to relieve dysmenorrhoea.
Component of Jiao Ai Tang (classical formula); widely used in TCM gynaecology for cold-pattern menstrual disorders.
science Studies
Therapeutic potential of Artemisia vulgaris: An insight into underlying immunological mechanisms
Systematic ReviewThis review examined the immunological mechanisms underlying the therapeutic properties of Artemisia vulgaris in the context of its traditional uses across Chinese, Hindu, and European medicine. The paper synthesized published in vitro and in vivo data on the herb's immunomodulatory, anti-inflammatory, antispasmodic, and antinociceptive activities, with special attention to mechanisms relevant to skin conditions, digestive disorders, and gynecological complaints. Key findings include upregulation of anti-inflammatory cytokines, modulation of NF-kB signaling, and inhibition of mast cell degranulation, providing plausible immunological explanations for the herb's traditional applications. The authors also discussed the role of flavonoids and essential oil constituents in mediating these effects.
Significance of Artemisia Vulgaris L. (Common Mugwort) in the History of Medicine and Its Possible Contemporary Applications Substantiated by Phytochemical and Pharmacological Studies
Systematic ReviewThis comprehensive review synthesized the phytochemical composition and pharmacological evidence for Artemisia vulgaris (common mugwort), examining published in vitro and in vivo studies. The herb's aerial parts contain essential oils, flavonoids, sesquiterpenoid lactones, coumarins, and phenolic acids. Confirmed biological activities include antioxidant, hepatoprotective, antispasmolytic, antinociceptive, estrogenic, cytotoxic, antibacterial, and antifungal effects. The antispasmolytic and estrogenic properties provide mechanistic rationale for the traditional use of mugwort in menstrual regulation and dysmenorrhea. The review also identified the European Pharmacopoeia listing of A. vulgaris as a homeopathic raw material and highlighted applications in gastrointestinal regulation and gynecological conditions.
medication Dosing
tea
1-2 teaspoons fresh/dried leaf per cup
2x daily for up to 6 consecutive days
For menstrual support: start 1 week before expected period. Bitter taste; sweeten if needed. Avoid continuous long-term use.
tincture
1-4 mL (1:5, 25% ethanol)
3x daily
Short-term use only. Use with caution; not for long-term administration.
topical
Moxa sticks or cones; dried herb in cotton roll
As directed by TCM practitioner
Moxibustion: burned near acupuncture points without direct skin contact. Also used as topical lotion for hypertrophic scars.
Disclaimer: This information is largely AI-generated and reviewed by human experts at Evara Health. It is intended for educational and clinical reference purposes only and should not replace professional medical advice.
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