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Gouteng (Gambir Plant)---钩藤(powder100g/bottle)

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Product Description

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Gouteng is the dried hooked stem of Uncaria rhynchophylla (Miq.)Jacks.,Uncaria macrophylla Wall.,Uncaria hirsuta Havil.,Uncaria sinensis( Oliv.)Havil.,or Uncaria sessilifructus Roxb.,pertaining to Rubiaceae. It is collected in fall and winter. After the leaf is removed, it is cut into segments and then sun dried.

[ Medicinal Properties ]: Sweet and cold; relate to liver and pericardium meridians.

[ Medicinal Efficacies ]: Clear heat, pacify liver; extinguish wind and tranquilize.

[ CLinical Applications ]: 1. Headache and dizziness      Gouteng treats distending feeling in head, headache and dizziness. For that caused by liver fire, it is combined with Xiakucao and Longdan, while for that caused by hyperactivity of liver yang, it is combined with Tianma and shijueming, such as in Tianma Gouteng Decoction.

2. Stirring of liver wind, fright epilepsy and convulsions       It treats generation of wind by extreme heat, manifesting as convulsions of four limbs and acute infantile convulsions due to  high fever with superior effects, in combination with Tianma, Quanxie and Jiangcan. For epilepsy, manifesting as crying, spasms and convulsion, it is in combination with Tianzhuhuang and Chantui.

It also can clear heat and let pathogen out, to treat external contraction of wind heat, which manifests as headache, reddish eyes and macula failing to erupt.

[ Usage and Dosage ]: 3-12g. It should be decocted later.

钩藤为茜草科植物钩藤Uncaria rhyunchophylla (Miq.) Jacks.、大叶钩藤Uncaria macrophylla Wall.、毛钩藤Uncaria hirsuta Havil.、华钩藤Uncaria sinensis (Oliv.) Havil.或无柄果钩藤Uncaria sessilifructus Roxb.的干燥带钩茎枝。产于长江以南至福建、广东、广西等省。秋、冬二季采收带钩的嫩枝,去叶,切段,晒干。

       【药性】甘,凉。归肝、心包经。        【功效】清热平肝,息风定惊。       
 
【应用】        1.头痛,眩晕。本品性凉,主入肝经,既能清肝热,又能平肝阳,故可用治肝火上攻或肝阳上亢之头胀头痛,眩晕等症;属肝火者,常与夏枯草、龙胆草、栀子、黄芩等配伍,属肝阳者,常与天麻、石决明、怀牛膝、杜仲、茯神等同用,如天麻钩藤饮(《杂病证治新义》)。      
 
  2.肝风内动,惊痫抽搐。本品入肝,心包二经,有和缓的息风止痉作用,又能清泄肝热,故用于热极生风,四肢抽搐及小儿高热惊风症,尤为相宜。如治小儿急惊风,壮热神昏、牙关紧闭、手足抽搐者,可与天麻、全蝎、僵蚕、蝉衣等同用,如钩藤饮子(《小儿药证直诀》);用治温热病热极生风,痉挛抽搐,多与羚羊角、白芍、菊花、生地等同用,如羚角钩藤汤(《通俗伤寒论》);用治诸痫啼叫,痉挛抽搐,可与天竺黄、蝉蜕、黄连、大黄等同用,如钩藤饮子(《普济方》)。       
 
 此外,本品具有轻清疏泄之性,能清热透邪,故又可用于风热外感,头痛,目赤及斑疹透发不畅之证。与蝉蜕、薄荷同用,可治小儿惊啼、夜啼,有凉肝止惊之效。       
 
【用法用量】煎服,3~12g;入煎剂宜后下。        【古籍摘要】        1.《别录》:“主小儿寒热,惊痫。”       
 
 2.《药性论》:“主小儿惊啼,瘈疭热壅。”       
 
3.《本草纲目》:“大人头旋目眩,平肝风,除心热,小儿内钓腹痛,发斑疹。”       
 
【现代研究】        1.化学成分:钩藤含多种吲哚类生物碱,主要有钩藤碱、异钩藤碱、柯诺辛因碱、异柯诺辛因碱、柯楠因碱、二氢柯楠因碱,尚含黄酮类化合物,儿茶素类化合物等。       
 
2.药理作用:钩藤、钩藤总碱及钩藤碱,对各种动物的正常血压和高血压都具有降压作用;水煎剂对小鼠有明显的镇静作用;钩藤乙醇浸液能制止豚鼠实验性癫痫的发作,并有一定的抗戊四氮惊厥作用;麻醉大鼠静脉注射钩藤可对抗乌头碱、氯化钡、氯化钙诱导的心律失常;此外,钩藤还有抑制血小板聚集及抗血栓、降血脂等作用。       
 
 3.临床研究:据报道,用钩藤、全蝎、紫河车各18g,共研细末装胶囊,治疗偏头痛26例,均于服药后12小时内头痛缓解,48小时后头痛明显减轻,继则疼痛消失(江苏中医,1988,4:10);用钩藤、薄荷各10g,泡代茶饮,治疗外感风热证,多年来使用均获满意效果(湖北中医杂志,1984,4:55)。
另有用钩藤等治疗哮喘病、眩晕、链霉素反应、更年期、老年期抑郁症等。       
 
4.不良反应:高血压病人服用钩藤总碱治疗量时,个别可出现心动过缓、头晕、皮疹。月经量减少等,但可自

 


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