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Banlangen( Isatis Root )---板蓝根

Price:
$8.68
Weight:
1.00 LBS
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Product Description

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Banlangen is the dried root ofIsatis indigotica Fort., pertaining to Cruciferae. It is collected in fall. After the earth and sands are removed, it is sun dried, and then cut into slices. The raw form is used.

[ Medicinal Properties ]: Bitter and cold; relate to heart and stomach meridians.

[ Medicinal Efficacies ]: Clear heat and relieve toxicity, cool blood and relieve sore throat.

[ Usage and Dosage ]: 9-15 g.

[ Precautions ]: Be cautious with deficiency-cold of spleen and stomach.
 
[ Clinical Applications ]: 1. External contraction, fever, early stage of warm disease, sore and swollen throat     Banlangen is similar to Daqingye in function of clearing heat ad relieving toxicity, but good at relieving and dissolving lumps. By itself, it can treat external contraction of wind-heat or warm disease in early stage, manifesting as fever, headache and sore throat, or in combinatin with Jinyinghua, Lianqiao and Jingjie. Also it treats sore and swollen throat due to wind-heat up attacking, combined with Xuanshen, Mabo and Niubangzi.
 
2. Warm toxinosis, macula, erysipelas, mumps, abscess, swelling, sores and toxin      It  is good at treating pestilence and heat toxin. In case of macula,purple or dark tongue due to warm toxinosis, it is usually combined with Shengdihuang, Zicao and Huangqin. And for mumps, swollen-head infections, manifesting as red and swollen face and sore throat, it is usually combined with Lianqiao, Xuanshen and Niubangzi, such as in Puji Xiaodu Decoction.
 
[ Annotation ]: It is stipulated in Zhong Guo( Pharmacopoeia of the People's Republic of China) 2000 edition, that Isatis indigotica Fort., pertaing to Cruciferae, is quality goods, although the root and rhizome of Baphicacanthus cusia(nees) Breeme., pertaining to Acanthaceae, in Southern Chia also are used as Banlangen. The former is known as "North Banlangen", while the latter is known as "South Banlangen". Both are similar in properties, efficacies and applications.

板蓝根为十字花科植物菘蓝1satis indigotica Fort.的干燥根。主产于内蒙古、陕西、甘肃、河北、山东、江苏、浙江、安徽、贵州等地。秋季采挖,除去泥沙,晒干。切片,生用。
      
【药性】苦,寒。归心、胃经。       
 
【功效】清热解毒,凉血,利咽。       
 
【应用】        1.外感发热,温病初起,咽喉肿痛。本品苦寒,入心、胃经,善于清解实热火毒,有类似于大青叶的清热解毒之功,而更以解毒利咽散结见长。用治外感风热或温病初起,发热头痛咽痛,可单味使用,或与金银花、荆芥等疏散风热药同用;若风热上攻,咽喉肿痛,常与玄参、马勃、牛蒡子等同用。      
 
  2.温毒发斑,痄腮,丹毒,痈肿疮毒。本品苦寒,有清热解毒,凉血消肿之功,主治多种瘟疫热毒之证。用治时行温病,温毒发斑,舌绛紫暗者,常与生地、紫草、黄芩同用,如神犀丹(《温热经纬》);若用治丹毒、痄腮、大头瘟疫,头面红肿,咽喉不利者,常配伍玄参、连翘、牛蒡子等,如普济消毒饮(《东垣试效方》)。       
 
【用法用量】煎服, 9~15g。       
 
【使用注意】体虚而无实火热毒者忌服,脾胃虚寒者慎用。       
 
【古籍摘要】        1.《日华子本草》:“治天行热毒。”       
 2.《本草便读》:“板蓝根即靛青根,其功用性味与靛青叶同,能入肝胃血分,不过清热、解毒、辟疫、杀虫四者而已。但叶主散,根主降,此又同中之异耳。”       
3.《分类草药性》:“解诸毒恶疮,散毒去火,捣汁或服或涂。”       
 
【现代研究】        1.化学成分:菘蓝根含靛蓝、靛玉红、β-谷甾醇、棕榈酸、尿苷、次黄嘌呤、尿嘧啶、青黛酮和胡萝卜苷等。      
  2.药理作用:本品对多种革兰氏阳性菌、革兰氏阴性菌及流感病毒、虫媒病毒、腮腺病毒均有抑制作用。可增强免疫功能;有明显的解热效果。本品所含靛玉红有显著的抗白血病作用;板蓝根多糖能降低实验动物血清胆固醇和甘油三酯的含量,并降低MDA含量,从而证明本品有抗氧化作用。       
 3.临床研究:据报道,板蓝根在临床上是治疗急性喉炎、上呼吸道感染以及急性肝炎的常用药物,对其他疾病也有较好的疗效,如:用板蓝根注射液肌内注射,治疗大疮性鼓膜炎42例,全部治愈(安徽中医学院学报1996,3:27);用板蓝根、大青叶、马齿苋、薏苡仁等药研末,水调糊状外敷,治疗扁平疣104例,有99例痊愈(中医杂志1994,10:616);用板蓝根水煎剂或用其注射液静滴,治疗流行性乙型脑炎106例,治愈率为95.3%(中药临床新用2001:374)。此外,以板蓝根为主的多种制剂,尚可用于治疗尖锐湿疣、传染性单核细胞增多症、急性结膜炎及角膜炎等。       
4.不良反应:有报道板蓝根口服可引起消化系统症状,或引起溶血反应;其注射液可致过敏反应,如引起荨麻疹、多形性红斑、过敏性皮炎、多发性肉芽肿以及过敏性休克等,应引起注意。        【其他】《中国药典》2005年版将十字花科植物菘蓝的根定为板蓝根正品,而爵床科植物马蓝Baphicacanthus cusia (Nees) Bremek的根茎及根,在南方地区亦作为板蓝根使用,前者习称“北板蓝根”,后者习称“南板蓝根”。二者药性、功效、应用基本相同。

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