Rhynchosia dielsii
Aliases：Páng Xiè Yǎn Jīng (Crab Eye, from Sichuan Chinese Materia Medica), Gǔ Yǎn Fēng (Ancient Eye Wind), Sān Yè Dòu (Three-leaf Bean).
Shān Huáng Dòu Téng is a traditional Chinese medicinal herb derived from the dried stem, leaf, or root of Rhynchosia dielsii Harms, a plant belonging to the family Leguminosae. This plant is a climbing herbaceous vine with slender stems densely covered with yellow long hairs or short pubescence. The leaves are alternate, trifoliate compound, with the terminal leaflet being nearly rhombic-ovate. The racemes are axillary, with yellow corollas. Shān Huáng Dòu Téng was first recorded in Sichuan Chinese Materia Medica.
Efficacy & Actions
Dispels wind, clears heat, calms convulsions, and detoxifies.
Indications
Indicated for wind-heat common cold, cough, infantile high-fever convulsions, palpitations, and breast abscess (mastitis).
Modern Pharmacology
Based on its traditional medicinal effects, it is speculated to possess antipyretic, anticonvulsant, anti-inflammatory, and other pharmacological activities. Its active components and mechanisms of action require further investigation.
Ingredients
Shān Huáng Dòu Téng primarily contains flavonoids, triterpenoids, and other components. The specific chemical constituents require further study.
Usage & Dosage
For oral administration: decoct in water, 3–9 g. Pediatric dosage: 1–3 qián (approximately 3–9 g). Adult dosage: 0.5–1 liǎng (approximately 15–30 g).
Contraindications
Contraindicated in patients without heat patterns—as this herb is cool in nature and should not be used in the absence of heat conditions. Avoid prolonged or excessive use—may cause hoarseness.
Selected Formulas
For infantile wind-heat with refusal to suckle and foaming at the mouth (Sichuan Chinese Materia Medica, 1979) Take 3g each of Shanhuangdouteng (a local herb), Yinhua vine (honeysuckle vine), Paifengteng (a local herb), Tu Huoxiang (a local herb), and Wupifeng (a local herb). Decoct in water and drink. For heart palpitations and fatigue (Sichuan Chinese Materia Medica, 1979) Take 10g each of Shanhuangdouteng, Zhuyexin (bamboo leaf core), Bajiaofeng root (Alangium chinense), and Yejiaoteng (Polygonum multiflorum vine). Stew with pork and consume.
Daily Consumption
Stewed with meat for consumption: It may be stewed with pork and other ingredients for consumption.
Medicinal Parts
The stem, leaf, or root of Rhynchosia dielsii Harms, a plant belonging to the family Leguminosae.
Selection & Storage
Store in a ventilated, dry place, protected from moisture and mold.
