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Introduction To Phragmites Root (lu gen)









Phragmites Root (lu gen)

Rhizoma Phragmitis


Properties: Sweet in flavour, cold in nature, it acts on the lung and stomach channels. The cold property clears the heat, the moist quality promotes the production of body fluid and the sweet flavour eliminates dampness. The herb can clear away the heat in lung and stomach, promote the production of body fluid to quench thirst and induce diuresis for treating stranguria as well. The potency of the herb is relatively weak, so it has the action of astringing the pathogenic factors without impairing the vital-Qi. It is therefore applied to febrile diseases manifested as impairment of the body fluid and excessive thirst. 

Effects: Clearing heat, promoting the production of body fluid, relieving restlessness and arresting vomiting.


1. For treating the impairment of the body fluid caused by febrile diseases, vexation and thirst, red tongue, lack of body fluid, it is often used in combination with ophiopogon root, trichosanthes root, and gypsum to clear heat, nourish Yin, promote the production of the body fluid and quench thirst. For treating stomach-heat and vomiting, it is used in combination with other drugs for clearing away the stomach-heat and arresting vomiting, such as bamboo shavings.

2. For treating lung-heat and cough with yellow and thick phlegm, it is used in combination with scutellaria root, trichosanthes fruit to remove the heat from lung, resolve sputum and quench thirst. For pulmonary abscesses with vomiting pus and blood, it is used in combination with peach kernel, waxgourd seed, coix seed known as Weijing Tang (Decoction of the Reed Stem) to enhance the action of  clearing the lung-heat and evacuating pus. 

The herb can be also used for treating dribbling urination and neonatal measles because it has the functions of inducing diuresis, eliminating dampness, ventilating lung and promoting eruption. 

Dosage and Administration: 15-30g for dried preparation, 30-60g for the fresh. The fresh reed root is superior in clearing heat and promoting the production of the body fluid.


For the convenience of customers, we offer the Phragmites Root (lu gen) as the quick-dissolving granule made through modern technology.




Every sachet is equivalent to raw herb 15 grams.


The dosage is for adults, one sachet each time, twice a day. Please put the granule into a cup, then put 50-100ml boiling water into the cup and stir it with spoon. You will get some tea, drink it when it is luke-warm. For children, the dosage should be reduced according to the weight.


Air ship 50 sachets of Phragmites Root (lu gen) in the form of quick-dissolving granule for your personal use now at $98.00.

If you would like to order this raw herb, please go to the order form.


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