| [English Name] | Yellowhairy Premna Stem | |
| [Chinese Name] | 战骨 | |
| [Pinying Name] | Zhangu | |
| [Latin Name] | Caulis Pemnae Fulvae | |
| [Genera] | Verbenaceae | |
| [Efficacy] | qufengshiyao | |
| [Pictures] | Plant picture | Drug picture |
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| [Alias] | Shenxiandoufuchai, Diedawang, Huangmaodoufuchai, Banjiuzhan | |
| [Source] | This crude drug is the stem of Premna fulva Craib. (family: Verbenaceae). |
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| [Plant morphology] | ||
| [Distribution] | This species is distributed in the south of Guizhou and the southwest of Guangxi. |
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| [Gathering and processing] | The stem can be gathered all year round, but its quality is best when it is collected in the autumn. After foreign substances are removed, the stem is cut into slices and dried in the sun. |
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| [Characteristics] | ||
| [Ecology] | It mostly grows in the shade、evergreen broad-leaved forest or open forest beside road at the altitude between 500 to 1200 metres. | |
| [Chemical composition] | ||
| [Pharmacological activities] |
1. Antiinflammatory and Analgesia: Water ectract show inhibit inflammatory induced by fresh albumen and writhing response induced by antimony potassium tartrate[1]. 2. Effect on Microcirculation, Nerve and Soft Tissue: Water extract can ameliorate ameliorate disability, protect sciatic nerve injury and acute soft tissue injuries[2]. |
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| [Clinical trial] | Osteoarthritis OB： Zhanggu（Yellowhairy Premna Stem）decoction（zhangu(Yellowhairy Premna Stem )30g, Heichui fengteng(Black blowing rattan) 21g, Hongchuifengteng(Red blowing rattan) 30g, Huoxueteng( sargentgloryvine stem) 15g,Tongchenghu( Aristolochia fordiana) 6g）soaked with Wine for external use. Results showed that in the 75 cases of patients, 59 cases had significant effect, accounting for 78.7%；14 cases improved, accounting for 18.7%；2 cases were invalid, accounting for 2.6%. The overall effective rate was 97.4% [1] |
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| [Properties] | ||
| [Medical and other Uses] | ||
| [Dosage] | ||
| [Cautions] | ||
| [Traditional usage] |
1. Rheumatic arthritis 2. Impotence 3. Irregular menstruation (delayed menstruation) |
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| [Toxicological studies] | ||
| [Pharmaceutical preparations] | ||
| [References] |
Pharmacologic Actions: [1] Lin Qitong, Liu Wenxia,Qin Hong, et al. Chinese Traditional and Herbal Drugs, 1981,12(10):20. [2] Lin Jun, Yang Bin, Chen Jiahuan, et al. Journal of
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