Motherwort: Uses, Benefits, Dosage & Safety
Last updated: June 2026 · Reviewed by the FactoWiki Editorial Team for clarity and source accuracy
Quick summary
Motherwort is a traditional herb for the heart, nerves and menstruation. Modern human evidence is limited, and cardiovascular cautions apply.
What is Motherwort?
Motherwort (Leonurus cardiaca) is a mint-family herb used traditionally for palpitations, anxiety and menstrual complaints — its Latin name reflects its 'heart' associations.
What Motherwort is commonly used for
In supplements, Motherwort is most often included for women's hormone & thyroid, nerve health support. It is used as nutritional support, not as a treatment for any medical condition — the distinction matters, because the claims on a sales page are often stronger than the evidence allows.
How Motherwort works
Motherwort contains alkaloids and flavonoids proposed to have mild calming and heart-rate-modulating effects in laboratory and traditional use, though human mechanisms are unclear.
What the evidence says
Here's an honest snapshot of what published research suggests about Motherwort — including where the evidence is limited.
- Human clinical evidence for motherwort is limited; its uses for anxiety, palpitations and menstruation are mainly traditional, with some preliminary research.
- Study quality and doses vary, and a result seen in research doesn't guarantee the same for any individual — use the sources below to check the current evidence on Motherwort rather than relying on marketing claims.
Typical dosage used in studies
Traditional use is as a tea or tincture; standardised dosing is not well established. This is general information from research, not a personal recommendation or a dosing instruction.
Side effects and safety
Because it may affect heart rhythm and the uterus, motherwort is avoided in pregnancy and used cautiously with heart or sedative medications. It can increase sensitivity to sunlight in some people. As with any supplement, it's sensible to introduce Motherwort on its own, use a trusted brand, and stop if you notice any reaction.
Medication interactions and who should avoid Motherwort
Medication & safety check
Herbs interact with prescription medicines more often than people expect — affecting drug levels, bleeding, blood pressure, blood sugar or sedation — and Motherwort is no exception. If you take any regular medication, are pregnant or breastfeeding, or manage a health condition, confirm Motherwort is appropriate for you before starting.
This is general information, not personal medical advice. If you take any medication, are pregnant or breastfeeding, or have a health condition, confirm it's safe to use Motherwort with your doctor or pharmacist first.
Sources & further reading
For authoritative background and the current research base on Motherwort, consult:
- PubMed — search the research on Motherwort
- NCCIH — Herbs at a Glance
- MedlinePlus — herbs & supplements
- MedlinePlus — drugs, herbs & supplements
Frequently asked questions
Does Motherwort actually work?
Human clinical evidence for motherwort is limited; its uses for anxiety, palpitations and menstruation are mainly traditional, with some preliminary research. As with most supplements, results vary between people and the marketing is often stronger than the evidence — so it's worth checking the research before relying on it.
Is Motherwort safe to take?
For most healthy adults at normal doses it's generally well tolerated, but there are real cautions. Because it may affect heart rhythm and the uterus, motherwort is avoided in pregnancy and used cautiously with heart or sedative medications. It can increase sensitivity to sunlight in some people. If you take medication, are pregnant or breastfeeding, or have a health condition, check with a doctor or pharmacist first.
What is Motherwort used for?
In supplements, Motherwort is mainly included for women's hormone & thyroid, nerve health support — as nutritional support, not as a treatment for any medical condition.
Where you'll find Motherwort
On FactoWiki, Motherwort is the kind of ingredient you'll see discussed in these supplement categories. Each category guide breaks down what the evidence does and doesn't support.
Related ingredients to explore
Ingredients often studied or formulated alongside Motherwort — useful for understanding the full picture of a formula.