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Zi Mei Shu (姊妹舒) is a Traditional Chinese Medicine (TCM) medicated gynecological pad developed and manufactured by Shaanxi Wanan Pharmaceuticals. The product features a complex herbal formulation containing extracts from *Sophora flavescens*, *Cnidium monnieri*, *Plantago* seed, *Angelica sinensis*, *Ligusticum chuanxiong*, *Stemona*, mint, alum, and borneol. It is designed for topical and transmucosal delivery to treat a wide range of gynecological conditions, including candidal vulvitis, bacterial vaginitis, vulvar eczema, trichomonal vaginitis, atrophic vaginitis, cervicitis, mycoplasma infection, and adnexitis. The formulation's mechanism of action is attributed to the local antifungal, antibacterial, anti-inflammatory, and antipruritic properties of its herbal constituents, particularly the alkaloid-containing extracts. Zi Mei Shu is marketed as an over-the-counter (OTC) product in China and complies with international quality standards such as ISO 9001 and ISO 13485.
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