Catechu, Er Cha 儿茶

Er Cha (TCM)
Khi la wa ri (Tibetan)
Khadira (Ayurveda)
Picture Acacia catechu
Botanische wandplaten
, 1904–1914

Picture Acacia catechu
An Encyclopaedia of useful and ornamental Plants
, Burnett, 1852

Picture Uncaria Gambir (used as an alternate source in TCM)
Atlas der Officinellen Pflanzen, Berg & Schmidt, Leipzig, 1893

Picture Catechu (Adam, 2016)

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Botanical name:


Acacia catechu (Black Catechu)
TCM uses Uncaria gambir synonymously with A. catechu

Parts used:


Gum; concentrated extract

Temperature & Taste:


Cool, dry. Bitter, astringent

Classifications:


2P. HEMOSTATICS
3Q. ANTHELMINTIC
TCM:
T. External Medicines

Uses:


1. Dries Damp, Stops Leakages:
-Diarrhea and Dysentery, with or without Blood
-Leukorrhea, Spermatorrhea

2. Stops Bleeding:
-bleeding of the Lungs, Stomach, Bowels
-Uterine Bleeding

3. Resists Poison:
-in formula for Intermittent Fever
-obstinate and chronic Skin diseases (Ayurveda)

4. Clears Phlegm, Clears the Lungs:
-Cough from Lung heat

5. Externally:
-applied to damp, oozing non-healing Sores and Ulcers to dry them
-Toothache, applied to the gum or used to fill a hollow tooth
-powder or paste strengthens the gums, stops bleeding and firms the teeth
-applied to Mouth Sores and Ulcers
-topically to Genital lesions and Syphilitic Sores
-concentrated decoction as a wash for Thrush
-as a wash for cracked or chapped Nipples


Dose:


Pills or Powders: 1–3 grams

Substitutes
 … available in PRO version
Picture

Main Combinations:


1. Bleeding:
i. Catechu with  … available in PRO version
ii. Catechu with  … available in PRO version
2. Internal Bleeding, Bruising, Trauma:
i. Catechu  … available in PRO version
ii. Catechu with  … available in PRO version
3. Gastrointestinal Bleeding, Catechu with  … available in PRO version
4. Enuresis, Catechu with  … available in PRO version
5. Diarrhea:
i. Catechu,  … available in PRO version
ii. Catechu with  … available in PRO version
6. Dysentery, Catechu, with  … available in PRO version
7. Intermittent Fever, Catechu,  … available in PRO version
8. Non-healing sores and ulcers:
i. Catechu is applied with  … available in PRO version
ii. Catechu is applied with  … available in PRO version
iii. Chronic Ulcers with foetid discharge, Catechu  … available in PRO version
9. Leukorrhea from Damp-Heat Catechu  … available in PRO version
10. Mouth and Throat Sores and Ulcers, Catechu with  … available in PRO version
11. Syphilitic Sores, Catechu with  … available in PRO version
12. Toothache, Catechu with  … available in PRO version
13. Hoarseness, Loss of Voice, Catechu with  … available in PRO version
14. Bed Sores, as an ointment Catechu with  … available in PRO version

Major Formulas:


Catechu 4 (Seng ldeng 4) (Tibetan Medicine)
Catechu 25 (Seng ldeng 25) (Tibetan Medicine)
Qi Li San (TCM)

Cautions:


None noted. It is very dry, so should be used cautiously in Yin deficiency.

Main Preparations used: