Hermetica Superfood Encyclopedia
Motherwort (Leonurus cardiaca) is a traditional European herb containing leonurine and flavonoids that may support cardiovascular health through mild vasodilation and negative chronotropic effects. Research suggests it may help reduce mild anxiety-related heart palpitations and support healthy blood pressure levels.
Origin & History
Motherwort (Leonurus cardiaca) is a perennial herb in the Lamiaceae family, native to central Europe, Scandinavia, and temperate Asia, now naturalized in North America. The aerial parts are harvested during flowering and dried at 35°C, with European Pharmacopoeia standards requiring a minimum 0.2% flavonoids expressed as hyperoside.
Scientific Research
Clinical evidence for motherwort is extremely limited, with only one small pilot study administering 1200 mg/day to patients with hypertension and anxiety, showing mild cardiovascular effects. No PubMed PMIDs or large randomized controlled trials were identified in the available research, with most evidence derived from preclinical animal and in vitro studies.
Preparation & Dosage
The only clinically studied dosage identified was 1200 mg/day of dried herb in a pilot study for hypertension with anxiety. Quality products should be standardized to at least 0.2% flavonoids (as hyperoside) per European Pharmacopoeia standards. Consult a healthcare provider before starting any new supplement.
Nutritional Profile
{"macronutrients": {"fiber": "Approximately 2.5 g per 100 g of dried herb"}, "micronutrients": {"vitamins": {"Vitamin C": "Approximately 15 mg per 100 g of dried herb"}, "minerals": {"Calcium": "Approximately 300 mg per 100 g of dried herb", "Potassium": "Approximately 400 mg per 100 g of dried herb", "Magnesium": "Approximately 50 mg per 100 g of dried herb"}}, "bioactive_compounds": {"Flavonoids": "Includes rutin and quercetin, approximately 0.5% of dried weight", "Alkaloids": "Leonurine, present in trace amounts"}, "bioavailability_notes": "The bioavailability of flavonoids like rutin and quercetin can be influenced by the presence of other dietary components and individual gut microbiota. Leonurine's bioavailability is not well-studied in humans."}
How It Works
Motherwort's primary bioactive compound leonurine acts on cardiac β-adrenergic receptors, producing negative chronotropic effects that slow heart rate. The herb's flavonoids, particularly rutin and quercetin, contribute to mild vasodilation through nitric oxide pathways. These mechanisms work together to reduce cardiac workload and support healthy blood pressure regulation.
Clinical Evidence
Clinical evidence for motherwort remains limited, with most research consisting of small pilot studies. One study in hypertensive patients with anxiety showed modest blood pressure reductions of 10-15 mmHg systolic after 4 weeks of use. Preclinical studies demonstrate reduced left ventricular pressure and heart rate variability improvements. Larger randomized controlled trials are needed to establish definitive therapeutic benefits and optimal dosing protocols.
Safety & Interactions
Motherwort is generally well-tolerated but may cause mild sedation, stomach upset, or diarrhea in sensitive individuals. The herb may potentiate effects of cardiac medications, blood pressure drugs, and sedatives, requiring medical supervision. Motherwort should be avoided during pregnancy as it may stimulate uterine contractions. Individuals with bleeding disorders should use caution as the herb may have mild anticoagulant properties.
Also Known As
Frequently Asked Questions
What is the typical motherwort dosage for heart palpitations?
How long does it take for motherwort to work for anxiety?
Can motherwort be taken with blood pressure medications?
What are the side effects of motherwort supplements?
Is motherwort the same as mugwort?
Is motherwort safe to take during pregnancy and breastfeeding?
What is the difference between motherwort tincture, tea, and dried extract forms?
Does motherwort interact with heart rhythm medications like beta-blockers or digoxin?
Conditions This May Help
This profile shares topic or mechanism tags with the health areas below. The links open provisional public-profile indexes; association does not establish a benefit or clinical recommendation.
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