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Lugen ( Reed Rhizome )---芦根(powder100g/bottle)

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Product Description

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Lugen is the dried or raw rhizome of Phragmites comunis Trin, pertainting to Gramieae. It is collected in all seasons. The buds, fibrous roots and membrance leaves are removed. The raw for is used or after sun dried.

[ Medicinal Properties ]: Sweet and cold; relate to lung and stomach meridians.

[ Medicinal Efficacies ]: Clear heat ad purge fire; generate fluids and stop thirst; remove agitation and stop vomiting; promote urination.

[ Usage and Dosage ]: Dried 15-30 g. When using the fresh, the dosage is double. also it is pounded to use the juice.

[ Precautions ]: Avoid with deficiency-cold of spleen and stomach.
 
[ Clinical Applications ]: 1. Agitation and thirst in warm disease    It treats consumption of fluids in warm disease with symptoms such as agitation, fever and thirst, in combination with Tianmendong and Tianhuafen, or by oral administrations of its raw juice in combination with Maidong juice, pear juice, water Chestnut juice and lotus root juice.
 
2. Lung heat, cough, lung abscess and coughing pus   It is indicated for cough due to lung heat, usually with Huangqin, Zhebeimu and Gualou. For coughing pus in lung abscess, usually it is with Yiyiren and Dongguaren; for example in Weijing Decoction.
 
3.Stomach heat, vomiting and nausea    The fresh one is used in combination with raw Zhuru and Shengjiang; for example in Lugen Decoction.
 
4. Heat stranguria and astringent pain    For heat stranguria with astringent pain, scanty and reddish urine, it is usually in combination with Baimaogen and Cheqianzi.

芦根为禾本科植物芦苇Phragmites communis Trin.的新鲜或干燥根茎。全国各地均有分布。全年均可采挖,除去芽、须根及膜状叶。鲜用,或切后晒干用。
      
【药性】甘,寒。归肺、胃经。       
 
【功效】清热泻火,生津止渴,除烦,止呕,利尿。       
 
【应用】        1.热病烦渴。本品性味甘寒,既能清透肺胃气分实热,又能生津止渴、除烦,故可用治热病伤津,烦热口渴者,常配麦门冬、天花粉等药用;或以其鲜汁配麦冬汁、梨汁、荸荠汁、藕汁服,如五汁饮(《温病条辨》)。      
 
  2.胃热呕哕。本品能清胃热而止呕逆,可用鲜品配青竹如、生姜等煎服,如芦根饮子(《千金方》);也可单用煎浓汁频饮(《肘后方》)。       
 
 3.肺热咳嗽,肺痈吐脓。本品入肺经善清透肺热,用治肺热咳嗽,常配黄芩、浙贝母、瓜蒌等药用。若治风热咳嗽,可配桑叶、菊花、苦杏仁等药用,如桑菊饮(《温病条辨》)。若治肺痈吐脓,则多配薏苡仁、冬瓜仁等用,如苇茎汤(《千金方》)。       
 
4.热淋涩痛。本品功能清热利尿,可用治热淋涩痛,小便短赤,常配白茅根、车前子等用。       
 
【用法用量】煎服,干品15—30g;鲜品加倍,或捣汁用。        【使用注意】脾胃虚寒者忌服。       
 
【鉴别用药】芦根为芦苇的根茎,苇茎为芦苇的嫩茎。二者出自同一种植物,功效相近。但芦根长于生津止渴,苇茎长于清透肺热,略有侧重。药市中多无苇茎供应,可以芦根代之。       
 
【古籍摘要】        1.《神农本草经》:“主消渴客热。”        2.《玉楸药解》:“消降肺胃,消荡郁烦,生津止渴,除烦下食,治噫膈懊 ? 。”       
 
【现代研究】        1.化学成分:本品所含碳水化合物中有木聚糖等多种具免疫活性的多聚糖类化合物,并含有多聚醇、甜菜碱、薏苡素、游离脯氨基酸、天门冬酰胺及黄酮类化合物苜蓿素等。        2.药理作用:本品有解热、镇静、镇痛、降血压、降血糖、抗氧化及雌性激素样作用,对 β-溶血链球菌有抑制作用,所含薏苡素对骨骼肌有抑制作用,苜蓿素对肠管有松弛作用。       
3.临床研究:据报道,用单味干芦根300g,文火煎两次,取汁分3次服完,治疗肺脓疡,均获痊愈(浙江中医杂志,1995,2:87)。

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