Gangbangui is the name of a traditional Chinese medicine. It consists of the dried aerial parts of Polygonum perfoliatum L., a plant in the Polygonaceae family, and is primarily produced in Hebei, Jiangsu, and Zhejiang.This herb has the effects of clearing heat and detoxifying, promoting diuresis and reducing swelling, and relieving cough. It is primarily used to treat sore throat, cough due to lung heat, whooping cough in children, edema with scant urination, diarrhea and dysentery caused by damp-heat, eczema, boils, and bites from snakes and insects.
Gangbangui
Gangbangui is the name of a traditional Chinese medicine. It consists of the dried aerial parts of Polygonum perfoliatum L., a plant in the Polygonaceae family, and is primarily produced in Hebei, Jiangsu, and Zhejiang.This herb has the effects of clearing heat and detoxifying, promoting diuresis and reducing swelling, and relieving cough. It is primarily used to treat sore throat, cough due to lung heat, whooping cough in children, edema with scant urination, diarrhea and dysentery caused by damp-heat, eczema, boils, and bites from snakes and insects.
Chinese Name : 杠板归
Latin Name : Polygoni Perfoliati Herba
Aliases : River White Grass, Snake Retreat, Pear-Head Thistle, Snake-Proof
Authentic Producing Area : Hebei, Jiangsu, Zhejiang
Nature, Flavor & Meridian Tropism : Taste: sour; Nature: slightly cold; Enters the Lung and Bladder meridians
Benefits & Efficacy
Benefits
Clears heat and detoxifies; promotes diuresis and reduces swelling; relieves cough.
Indications
Gangban Gui is primarily used to treat sore throat, cough due to lung heat, whooping cough in children, edema with scant urination, diarrhea and dysentery caused by damp-heat, eczema, boils, and snake and insect bites.
Usage and Dosage
1. Internal use: Decoct 15–30 g in water. 2. External use: Use an appropriate amount to prepare a decoction for fumigation or washing.
Precautions
Use with caution in individuals with weak constitutions and pregnant women.
Chemical Constituents
Gangbangui primarily contains flavonoids (such as kaempferol, quercetin, and quercetin-3-O-β-D-glucuronolactone) and organic acids (such as caffeic acid). In addition, it contains chalcone derivatives, anthraquinones, and neophenylpropanol sucrose esters, among others.
Pharmacological Actions
Gangbangui possesses pharmacological effects such as suppressing coughs and expectorating phlegm.
Relevant Discussions
1. *Essentials of the Properties of Raw Herbs*: “Stops diarrhea; soothes chronic malnutrition, boils, and hemorrhoids; dispels toxins.”
2. *Yunnan Chinese Herbal Medicine*: “Clears heat and detoxifies; promotes diuresis and dispels dampness. Treats colds, bronchitis, diarrhea, cloudy urine, abscesses, and eczema.”
Applications
Related Compatibility
1. Gangbangui combined with Plantain Herb (Cheqiancao): Both herbs can clear heat, eliminate toxins, promote diuresis, and reduce swelling. Gangbangui excels at clearing heat and eliminating toxins, while Plantain Herb excels at promoting diuresis and reducing swelling. When used together, they effectively clear heat, eliminate toxins, promote diuresis, and reduce swelling. This combination is suitable for conditions such as difficulty urinating, edema, and dysuria caused by the accumulation of dampness, heat, and toxins in the lower jiao.
2. Gangban gui combined with Kushen: Gangban gui excels at clearing heat, eliminating toxins, and draining dampness; Kushen excels at clearing heat, drying dampness, dispelling wind, and killing parasites. When combined, these two herbs provide excellent effects in clearing heat, eliminating toxins, draining dampness, and dispelling wind. This combination is suitable for conditions such as edema with scant urination, damp-heat diarrhea and dysentery, eczema, boils and abscesses, and damp-heat jaundice.
3. Combination of Gangban-Gui and Huangbai: Gangban-Gui excels at clearing heat, eliminating toxins, promoting diuresis, and reducing edema; Huangbai is bitter and cold in nature, with descending and draining properties, and is particularly effective at purging fire, eliminating toxins, clearing heat, and drying dampness. When combined, these two herbs work to purge fire, eliminate toxins, dry dampness, and promote diuresis. This combination is suitable for treating diarrhea, dysentery, jaundice, leukorrhea, turbid urine, eczema, and boils caused by the accumulation of damp-heat and fire toxins.
Medicinal Identification
Gangban gui and Alisma: Both herbs promote diuresis and reduce swelling, and can be used together to treat conditions caused by water-dampness stagnation, such as difficulty urinating, edema, diarrhea, dysuria with turbid urine, and leukorrhea.However, Gangban Gui excels at clearing heat and detoxifying; it is frequently used to treat sore throat, boils, and snake or insect bites caused by severe heat-toxin accumulation. It can also consolidate lung qi to relieve cough, making it a common choice for treating lung-heat coughs and whooping cough in children.Alisma excels at promoting diuresis and draining dampness; it can both clear heat from the bladder and disperse the “ministerial fire” of the kidney meridian, making it an excellent remedy for conditions of damp-heat accumulation in the lower jiao,syndromes of internal water and dampness retention, as well as for conditions such as nocturnal emissions and hot flashes caused by kidney yin deficiency and excessive “ministerial fire.” Furthermore, by draining water and dampness, resolving phlegm and fluid retention, transforming turbidity, and lowering lipids, it is an excellent remedy for dizziness and vertigo caused by stagnant phlegm and fluid retention and the failure of clear yang to rise, as well as for hyperlipidemia.
Notes
Patients requiring treatment with traditional Chinese medicine should first consult a licensed TCM hospital, where a TCM practitioner will conduct a professional diagnosis and prescribe the appropriate herbal formula.
Processing & Preparation
Harvesting & Processing
Harvest during the summer flowering season and sun-dry.
Processing Methods
Remove impurities, rinse briefly, cut into sections, and dry.
Storage Methods
Store in a dry place.
Crude Drug Identification
Properties of Crude Drugs
The stem is slightly square-columnar, angular, and highly branched, with a diameter of up to 0.2 cm; the surface is purplish-red or purplish-brown, with reverse-pointing hooked spines along the ridges; the nodes are slightly swollen, the internodes are 2–6 cm long, and the cross-section is fibrous, yellowish-white, and either pithy or hollow. The leaves are alternate, with long petioles, and shield-shaped;the leaf blades are mostly shriveled; when flattened, they are nearly equilateral triangular, gray-green to reddish-brown; the veins on the underside and the petiole both bear reverse-pointing hooked spines; the stipule sheaths either enclose the stem nodes or have fallen off. Short spicate inflorescences are terminal or borne in the axils of upper leaves; bracts are round; flowers are small, mostly withered or fallen off. Slight odor; the stem has a bland taste; the leaves have a sour taste.
Properties of Processed Slices
It appears in irregular segments; the rest is the same as described in “Characteristics of the Medicinal Material.”
Botanical Information
Botanical Classification
Polygonum cuspidatum, a plant of the genus Polygonum in the family Polygonaceae.
Morphological Characteristics
An annual, climbing herb, 1–2 m long. The entire plant is glabrous; the stem is ribbed, with backward-pointing spines on the ribs.Leaves are alternate; petioles are shield-shaped and attached, nearly as long as the leaf blade; stipule sheaths are leaf-like, round or ovate, clasping the stem, 2–3 cm in diameter; leaf blades are nearly triangular, 2–5 cm long and wide, pale green; the lower surface of the leaf veins bears sparse hooked spines, and occasionally the leaf margins also bear scattered hooked spines. Short spike-like inflorescences are terminal or borne in the axils of upper leaves; flowers are bisexual;flowers are small and numerous, with bracts; the bracts are round; the perianth is white or pale red, 5-lobed, with ovate lobes that enlarge at fruiting, becoming fleshy and deep blue; there are 8 stamens; the style is trifid. The achenes are spherical, dark brown, and glossy. Flowering occurs from June to August, and fruiting from September to October.
Distribution Area
Distributed throughout China.