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Introduction To Giant Knotweed Rhizome (hu zhang) 









Giant Knotweed Rhizome (hu zhang)

Rhizoma Polygoni Cuspidati


Properties: Bitter in flavour and cold in nature, it acts on the lung, liver, gallbladder and large intestine channels. Being bitter for dispersion and purgation, and cold for reducing fever and sending down abnormally ascending Qi, it effects on the liver channel and the blood system promoting blood circulation, relieves blood stasis and pain. Acting on the qi division of lung and intestines, it clears away heat from lung and large intestine, resolves phlegm and cough, expels the pathogenic heat to loose the bowles. Acting on the liver and gallbladder channels. It can clear away damp-heat to cure jaundice. Therefore, it is used to treat pathogenic heat accumulated in the blood system, cough due to the lung-heat, constipation caused by accumulation of heat jaundice due to damp-heat and other syndromes.

Effects: Promoting blood circulation by relieving blood stasis, clearing away heat and promoting diuresis, detoxicating, resolving phlegm and relaxing the bowels.


1. For treatment of amenorrhea, dysmenorrhea caused by blood stasis, it can be used in combination with Radix Angelicae Sinensis, Herba Leonuri, Flos Carthami, and other herbs with the effect of promoting blood flow to regulate menstruation; For treatment of arthralgia-syndrome due to damp-heat, it can be used together with Ramulus Mori, Radix Gentianae Macrophyllae, Radix Stephaniae Tetrandrae, Caulis Lomicerae, and other herbs with the effects of expelling wind and dampness, clearing heat and obstruction in the channels.

2. For treatment of stranguria due to damp-heat or leukorrhea due to damp-heat, it can be used together with Rhizoma Atractylodis, Cortex Phellodendri, Semen Coicis, Rhizoma Smilacis Glabrae, Rhizoma Dioscoreae Septemlobae, and other herbs having the effects of inducing diuresis for treating stranguria, clearing heat and drying dampness; For treatment of jaundice due to damp-heat or chole lithiasis, it can be used in combination with Radix Curcumae, Herba Artemisiae Scopariae, Herba Lysimachiae, Fructus Gardeniae, and other herbs having the effects of clearing away the damp-heat, facilitation excretion of bile and gallstones.

3. For treatment of cough due to the lung-heat, it can be used in combination with Radix Scutellariae, Bulbus Fritillariae, Cortex Mori Radicis, and other herbs with the effects of removing heat from the lung and dissolving phlegm to relieve cough; For treatment of constipation due to accumulation of heat, it can be used together with Cortex Magnoliae Officinalis, Fructus Auran-tii Innaturus, Natrii Sulfas, and other herbs to expel the heat, loose the bowels, and relieve the stagnation of Qi.

Besides, it is used to treat carbuncle, scalds and burns.

Dosage and Administration: 10-30g.

Precautions: Contraindicated in pregnancy.


For the convenience of customers, we offer the Giant Knotweed Rhizome (hu zhang) 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 Giant Knotweed Rhizome (hu zhang) 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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