Radix Puerariae

Radix Puerariae

(drug records of Nanning City)

[synonym] radish (Nanning medical records).

[source] it is the tuberous root of the legume Pteris hancei.

[plant morphology] Han's Diedou, also known as lidiedou, shangangjiao, baihuadiedou and pseudosagittaria.

Subshrub like herbs, 30-50 cm high. With spindle tuberous roots. Stem erect, pubescent when young. Stipules ovate lanceolate, 5-8 mm long, sparsely hairy, longitudinally veined; leaflets 3, subcleathery, oblong, terminal; leaflets 7-9 cm long or more, 2-5.5 cm wide, both ends slightly obtuse or apex acute, above bare, below covered with close silver gray silky hairs; stipules linear conic. Flowers axillary, paired or very short racemes; bracts ovate, bracteoles ovate oblong, all covered with long hairs and lines; calyx 15-18 mm long, covered with long hairs and powdery hairs, with many longitudinal veins, 5-lobed, lobes lanceolate, long pointed, half of the whole calyx; corolla white or light yellow, about 3 cm long, flagellum covered with coarse hairs. Pods with short stalks, linear rectangular round, 4-7 cm long, bald, beaked, slightly flat. It blooms in summer.

Born on sandy hillside. It is distributed in Guangdong and Guangxi.

[collection] April.

[nature and taste] Nanning medical records: "sweet, slightly bitter, flat. "

Functions and indications: relieving cough, eliminating phlegm, detumescence and detoxification. Treatment of chronic tracheitis in the elderly, sore swelling.

① "Drug records of Nanning city": "detumescence, detoxification, insecticidal, treatment of toxic sores. "

② "Guangxi medicine plant directory": "detoxification, extubation, detumescence, treatment of sore carbuncle. "

[usage and dosage] oral administration: decoction, 3-5 yuan (2 doses daily). External use: tamping.

[clinical application] treatment of chronic tracheitis

Take 3 yuan from the root of pods, decoct it, or make it into syrup, twice a day, 10 days as a course of treatment. A total of 505 cases were treated. After one course of treatment, 178 cases (35.3%) were controlled, 146 cases (28.9%) were markedly effective, and 149 cases (20.6%) were improved. The curative effect can be improved by prolonging the course of treatment. According to the observation, a few patients have dizziness, abdominal pain, diarrhea and other gastrointestinal symptoms after taking the medicine, which generally do not need to be treated and can disappear by themselves. In the course of treatment, blood examination was carried out, and it was found that white blood cells decreased in varying degrees, the total number of red blood cells increased, and hemoglobin had no significant change. ECG examination showed that the drug had no damage to the myocardium. After taking the medicine, the respiration and pulse slowed down in varying degrees, but the heart rhythm, heart rate and blood pressure did not change significantly.