Evidence supporting the use of: Chinese Motherwort
For the health condition: Dysmenorrhea

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Chinese Motherwort (Leonurus japonicus), known as "Yi Mu Cao" in traditional Chinese medicine (TCM), has a long history of use for various gynecological conditions, including dysmenorrhea (painful menstruation). In TCM, Chinese Motherwort is believed to invigorate blood circulation, regulate menstruation, and dispel blood stasis, which are considered common underlying factors for menstrual pain. Its use is well-documented in classical herbal texts and remains common in modern herbal formulas for menstrual disorders in China.

While there is some in vitro and animal research suggesting anti-inflammatory, antispasmodic, and uterotonic effects of Chinese Motherwort, rigorous clinical trials in humans specifically assessing its efficacy for dysmenorrhea are limited. Systematic reviews and pharmacological studies have highlighted potential mechanisms, such as relaxation of uterine smooth muscle and modulation of prostaglandin levels, which might theoretically reduce menstrual cramps. However, the overall quality and quantity of clinical evidence remain modest. Most support for its use in dysmenorrhea comes from traditional use and anecdotal reports rather than robust, high-quality clinical research.

In summary, the use of Chinese Motherwort for dysmenorrhea is primarily justified by traditional medical practice, with limited scientific validation. The level of supporting evidence is therefore rated as 2 out of 5, reflecting traditional use augmented by preliminary but insufficient scientific investigation.

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