Source: Polygonum multiflorum Thunb. This product is the dried vine stem of Polygonum multiflorum Thunb. Cutting in autumn and winter, removing residual leaves, bundling or cutting when fresh, and drying. This product has slight gas and bitter taste. It is best to have a purple-brown skin. Eat raw.
Related names: Polygonum multiflorum Thunb., Polygonum multiflorum Thunb., Cinnamomum tiewei, He Xianggong, Qi Teng.
Origin: Born on slopes, crevices and forests. It is distributed in Hebei, Henan, Shandong and the provinces south of the Yangtze River.
Sex and taste return to the meridian: sweet and flat. Heart tropism and liver meridian.
Efficacy: nourishing blood, calming nerves, expelling wind and dredging collaterals.
Character recognition:
The decoction pieces are cylindrical thick pieces or short sections, with purple-red to purple-brown surface, irregular longitudinal wrinkles, thin and easy peeling skin, narrow cross-section skin and wide wood, radial arrangement, obvious catheter holes, white or hollow marrow, firm and crisp, slightly gas and slightly bitter taste.
The medicinal materials with uniform stripes and purplish red surface are preferred.
△ Polygonum multiflorum Thunb
Main treatment certificate:
1. Insomnia and dreaminess
Sweet taste, entering the heart and liver meridian, can nourish yin and blood, nourish the heart and soothe the nerves. It is suitable for insomnia and dreaminess caused by yin deficiency and blood deficiency, and is often used with heart-nourishing and tranquilizing drugs such as Albizia Albizia bark, Ziziphus Spinosae seed and Semen Platycladi. If combined with mother-of-pearl, keel and oyster, it can treat insomnia due to yin deficiency and yang hyperactivity.
2. Blood deficiency and body pain, rheumatic joint pain
This product can nourish blood, dispel wind, dredge channels and activate collaterals, and can be used to treat body pain due to blood deficiency. It is often combined with Spatholobus suberectus, Angelica sinensis and Chuanxiong. For rheumatism and arthralgia, it is often combined with Notopterygium, Radix Angelicae Pubescentis, and Herba Taxilli to dispel wind, remove dampness and stop arthralgia.
3. Itchy skin
The product has the effects of nourishing blood, expelling pathogenic wind and relieving itching, and can be used for treating skin itching caused by rubella and scabies. Often used with cicada slough, duckweed and Kochia scoparia.
Usage and dosage: decoction, 9~ 15g. Appropriate amount for external use, decocted, and washed the affected area.
Modern research:
1. chemical constituents: mainly anthraquinones: emodin, chrysophanol, physcion, etc. Flavonoids: luteolin xyloside, etc. Stilbene glycoside: 2,3,5,4'-tetrahydroxystilbene -2-O-β-D- glucoside, etc. China Pharmacopoeia stipulates that the content of 2,3,5,4'-tetrahydroxystilbene -2-O-β-D- glucoside in this product shall not be less than 0.20%, and the decoction pieces are the same as the medicinal materials.
2. Pharmacological action: crude extract of Polygonum multiflorum Thunb. Flavonoids with different polarities and Polygonum multiflorum Thunb. Polysaccharide has antioxidant effect. Caulis Polygoni Multiflori has the effects of resisting chronic inflammation, resisting bacteria, calming and hypnotizing, and promoting immune function.