Gallnut of Chinese sumac (WU BEI ZI)
Pharmaceutical
Name:
Galla Rhi Chinensis
Botanical Name:
Rhus chinensis Mill., Rhus
potaninii Maxim., or Rhus punjabensis Stew. var. sinica (Diels)
Rehd. et Wils. (Fam. Anacardiaceae)
Common
Name:
Gallnut of Chinese sumac
Part
Used:
Parasitic gall
This herb is the gall produced
mainly by parasitic aphids of Melaphis chinensis (Bell) Baker on the
leaf. Depending on its form, the herb is divided into Du Bei (single horned)
and Jiao Bei (many horned). It is produced mainly in Sichuan province.
Collected in autumn, the gall is dried in sunlight and used unprepared.
Properties Taste & Meridians:
Sour and astringent in flavor, cold in
property, acts on the Lung, Large Intestine, and Kidney channels.
Functions:
Binds the Lung and purges Fire,
stops diarrhea, excessive sweating and bleeding, and controls seminal emission.
Indications
& Combinations:
1. For chronic cough due to
Lung Deficiency,
it is used with Fructus Schisandrae (Wu Wei Zi).
2. For chronic diarrhea and
dysentery, it is used with Fructus Schisandrae (Wu Wei Zi).
3. For seminal emission and
spontaneous emission.
4. For spontaneous sweating and
night sweats, the powdered form is mixed with water and applied to the
umbilicus, covered with gauze at night, and removed the next morning.
5. For metrorrhagia, it is used
alone or with other herbs that stop bleeding.
6. For clearing toxins,
reducing edema, and stopping bleeding.
Dosage and administration:
1.5–6 g, used in powder or pill
form. Appropriate amount for external use.
Precautions:
Contraindicated in patients
with cough due to Wind Cold or dysentery due to Damp Heat.
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