Reed Rhizome - China and Thailand medicinal plants professional database

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[English Name]	Reed Rhizome
[Chinese Name]	芦根
[Pinying Name]	Lugen
[Latin Name]	Phragmitis Rhizoma
[Genera]	Poaceae
[Efficacy]	Antipyretic drug
[Pictures]	Plant picture	Drug picture

[Alias]
[Source]
[Plant morphology]
[Distribution]
[Gathering and processing]
[Characteristics]
[Ecology]	It grows in river、shallow water of large pond side.
[Chemical composition]
[Pharmacological activities]	Immunoenhancement: Reed rhizome polysaccharides has immunoenhancement effect in mice spleen cell plaque formation and Lymphocyte Transformation[1].
[Clinical trial]	1. Cold and pharyngalgia: Fresh herbs of Bohe(10g) and Lugen(50g) were cut into piece and soaked with hot water, and then 58 patients were treated with these drugs for 3~5 days continually. Results showed that 53 cases were cured(91%), four cases' condition had improved(7%), one case was invalid, the overall effective rate was 98%^[1]. 2. Acute tonsilitis: 58 cases of patients were treated with Dahuang(10g) and Lugen(15g). Herbs were boiled with water, Dahuang were added into the water after Lugen were boiling and last no more than five minutes. Then these herbs were boiled twice at three hours interval. Results showed that all patients were cured^[2]. 3. Chronic hepatitis: patients were treated with fresh Lugen (60~150g) and boiled with water, one prescription a day. Acute hepatitis patients treated with only Lugen individual; patients of chronic hepatitis, persistent hepatitis and hepatitis B, herbs of Huangqi was needed used together; if patients accompany with heavy fever, herbs of heat clearing were added. Totally 108 cases of patient were treated and satisfying effects were obtain^[3].
[Properties]	Taste: sweet; property: cold; belong to lung, stomach and bladder channels.
[Medical and other Uses]	Function: clearing away heat and increasing the body fluid, relieving restlessness and arresting vomiting, inducing diuresis Syndromes to be treated: fever, polydipsia, vomiting, stomach heat, lung hot cough, lung abscess spit pus, heat gonorrhea.
[Dosage]	Oral administration: decoction, dry herb 15～30g. fresh herb 60～120g.
[Cautions]	Be carefully to be used in the patients with deficiency-cold of the spleen and stomach .
[Traditional usage]	1.Measles airtight 2.Polydipsia due to stomach heat 3.Hyperemesis gravidarum, refusing taking any food；vomiting phlegm 4.Abscess of lung, cough with sticky and smelly sputum 5.Abscess of lung, cough with low fever, dysphoria, purple skin in chest
[Toxicological studies]
[Pharmaceutical preparations]
[References]	Pharmacologic Actions: [1]Fang JN, et al. Phytochemisty, 1990,29(9) :3019. Clinical trial: [1] Shen Fang, Song Xiu’ai, Zhang LiXiang. Fresh Phragmitis Rhizoma and Lugen in the treatment of Cold and pharyngalgia in 58 cases. China's Naturopathy，2005,13（12）：43. [2]Yang XiuChun. Dahuang and Lugen in the treatment of Acute tonsillitis in 53 cases. Medical Journal of CASE, 2002,4(2):32.