[Variety Source]
This product is the rhizome and roots of Giant Knotweed (Polygonum cuspidatum Sieb. et Zucc.), a perennial herbaceous plant of the Polygonum family. The stems and leaves can also be used as medicine. It is produced in most parts of my country, mainly in Jiangsu, Jiangxi, Shandong, Sichuan and other places. Excavate in spring and autumn, remove fibrous roots, wash, slice into slices while fresh, and dry in the sun. Use raw or fresh.
[Property]
bitter, cold. Act on liver, gallbladder and lung channels.
[Efficacy]
It is choleretic, clearing heat and removing toxin, invigorating blood and resolving stasis, resolving phlegm and relieving cough.
[Indications]
- For dampness-heat jaundice, leukorrhea. This product is bitter and cold, good at laxatives, middle energizer for stasis, liver-gallbladder, dampness-heat, choleretic and anti-jaundice. It is also a good medicine for clearing heat and draining dampness. For dampness-heat jaundice, this product can be used alone to achieve immediate results; it can also be combined with Virgate Wormwood, Phelloendron Bark, Gardenia combination of medicinals, more effective. If dampness-heat accumulates in the bladder, difficult and painful urination, stranguria, leukorrhea, etc., it will be effective if used alone. For example, in "Yao Sengli's Collection of Prescriptions", use this as the end, drink it with rice, and treat five kinds of stranguria. Can also be used with stranguria-relieving diuretic.
- Used for burns, carbuncles, poisonous snake bites, etc. This product has the functions of clearing heat and removing toxin. If burns caused by water burns cause burning pain or yellow water discharge after ulceration, grind it into powder alone and mix it with sesame oil for application. You can also mix it with Sanguisorba and borneol. , mix oil and apply to the affected area. If dampness toxin accumulates on the skin and causes carbuncles and sores, apply the burnt ashes of Giant Knotweed root to the affected area, or wash the affected area with decoction. To treat a poisonous snake bite, you can take the fresh product and mash it and apply it to the affected area, or you can decoct it into thick soup and take it orally.
- Used for blood stasis amenorrhea, bruises and injuries. It has the effect of invigorating blood and resolving stasis to relieve pain. To treat amenorrhea and dysmenorrheal, it is often used with Peach Kernel, Corydalis Tuber, Carthamus, etc. To treat traumatic pain, it can be used with Chinese Angelica, frankincense, myrrh, Sanqi, etc. use.
- For lung heat cough. It can not only relieve phlegm and relieve cough, but also can be taken as a decoction. It can also be combined with Fritillaria Bulb, loquat leaf, Bitter Apricot Seed and other combinations of medicinals. In addition, it has a laxative effect. , used for heat accumulation constipation.
[Documentation]
- Bielu: "Mainly used to relieve menstruation and break blood clots."
- " materia medica steed": "Cure all kinds of gonorrhea in men and women."
- Rihuazi Bencao: "Treatment of postpartum bad blood, abdominal distension and fullness, expelling pus, sores, boils and carbuncles, women's haemorrhage, bruises, static blood, broken wind and poisonous gas,"
[Usage and Dosage]
Decoct and take, 10~30g. Appropriate amount for external use.
[Precaution]
Pregnant women should not take this product.
[Modern Pharmacology]
Giant Knotweed contains Giant Knotweed glycosides, flavonoids, Rhubarb Rhizoma element, and Rhubarb Rhizoma acid, which have laxative, resolving phlegm and relieving cough, hemostatic, and analgesic effects. The 25% decoction has inhibitory effects on Staphylococcus aureus, Pseudomonas aeruginosa, hemolytic streptococci, disease caused by cold bacilli, dysentery bacilli, large intestine bacilli, and Proteus. It also has inhibitory effects on certain viruses.