Stem and leaf of Rauvolfia

Stem and leaf of Rauvolfia

(drug records of Nanning City)

[source] it is the stem and leaf of Rauvolfia oleanderacea. The plant morphology is detailed in "Rauvolfia".

[collection] harvest in summer and autumn.

[medicinal material] the diameter of dried stem is about 1-2 cm. It is cylindrical, gray to grayish green. The young stem is green. It has 3-5 angular ridges, field punctate lenticels and longitudinal wrinkles. The material is hard, not easy to break, and the breaking surface is not flat. The skin is more bitter than the xylem. The leaves are wrinkled and brittle. The taste is bitter and slightly spicy.

[chemical constituents] the stem contains δ - yohimbine. The leaves contain alisin and sophoroside.

[pharmacological action] see "Rauvolfia".

[nature and taste] "bitter, sweet, cool. "

Functions and indications: dispelling wind, lowering blood pressure, promoting blood stasis and detoxifying. Treatment of cold, hypertension, fever, vomiting and diarrhea, sore throat, carbuncle, scabies, traumatic injury.

① "Nanning medicine annals": "treat fever, spot Sha, headache; tamp injury, poison sore; thick Decoction fire injury. "

② "Dispersing blood stasis and toxin, detumescence". Snake wound. "

③ "Jianshui (oral) for treating malaria and muscle pain" in Chinese medicine and plant Atlas. "

④ "Guangxi medicine plant directory": "whole plant: cool, antipyretic, detumescence, hemostasis, law wind, lower blood pressure. It can cure hernia, fever, contusion, knife injury, stomachache, lumbago, vomiting, diarrhea, sore throat and scabies. "

[usage and dosage] for internal use: decoction, 0.5-1 Liang; for external use: tamping or boiling and washing.

[taboo] according to Guangxi Medical Plant atlas, "it should not be used in patients with stomach disease and deficiency cold of Qi and blood. "

[prescription selection] ① for the treatment of common cold: Yangmu milk leaf decoction. (illustrated records of medicinal plants in Guangxi)

② Treatment of falls, snake bites: Rauvolfia fresh leaves mashed application. (Guangzhou Air Force Manual of common Chinese herbal medicine)

③ Treatment of wound bleeding: Rauvolfia tender leaves appropriate, tamping down the wound. (Guizhou herbal medicine)