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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.
Indications:
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.
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