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Motherwort at a Glance
Leonurus cardiaca is a bitter, prickly member of the Lamiaceae family. The flowering aerial parts are used in European and Western herbal traditions.
Traditional Use
Motherwort has a long reputation for nervous heart sensations, emotional tension and menstrual complaints. The botanical name cardiaca reflects that historical heart association.
Research
Modern human clinical evidence is limited. Motherwort should not be used to self-treat arrhythmia, chest pain, heart failure or uncontrolled blood pressure.
Safety
Motherwort is generally avoided during pregnancy because of traditional uterine-stimulant and emmenagogue use. It may also influence bleeding or blood pressure, so concentrated use deserves caution with anticoagulant, antiplatelet or cardiovascular medicines. Breastfeeding safety is not well established.
When Symptoms Need Medical Care
New palpitations, fainting, chest pain, severe shortness of breath or persistent rapid heartbeat require medical evaluation rather than herbal self-treatment.
Folklore
Motherwort’s name and traditional uses have given it associations with maternal protection, courage and emotional steadiness in folk practice.
Bottom Line
Motherwort is a historically important heart-and-menstrual herb, but modern evidence is limited and pregnancy is a clear caution. For educational purposes only.