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Catechu, Er Cha 儿茶

Er Cha (TCM)
Seng ldeng  
སེང་ལྡེང༌  (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)


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
-in Tibetan Medicine it is an important herb for Gout, Arthritis and Lymph disorders from Damp

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

3. Resists Poison:
-in formula for Intermittent Fever
-in Ayurveda it is classed as Kushthaghna, the Herbal group used for obstinate and chronic Skin diseases
-in Tibetan Medicine, it is also used for impure Blood; Carbuncles, Pruritis, Epidemic Disease

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

5. Topically:
-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


Picture
Main Combinations:
1. Bleeding:
i. Catechu with Red Sandalwood
ii. Catechu with Dragons Blood, Red Earth
2. Internal Bleeding, Bruising, Trauma:
i. Tormentil (½ oz.), Rose, St. Johns wort (2 drams each), Red Sandalwood, Mummy (Mumiya), Dragons Blood (1 oz. each), Catechu, Myrrh (½ oz. each), Nutmeg (1 dram), Alcohol (20 oz.). Digest, filter. (Pharmacopoeia Generalis, 1783)
ii. Catechu with Dragons Blood, Frankincense, Myrrh, Safflower, Cinnabar, Musk, Borneol Camphor (as in Qi Li San)
3. Gastrointestinal Bleeding, Catechu with Notoginseng San Qi (TCM)
4. Enuresis, Catechu with Oak bark, Camomile, Uva Ursi, Agrimony, Tormentil, St. Johns wort (Peyer)
5. Diarrhea:
i. Catechu, Bistort
ii. Catechu with Cinnamon, Opium (Unani)
6. Dysentery, Catechu, with Bistort, Angelica, Calamus, Tormentil, Zedoary, Pomegranate bark, Rose, Saffron, Myrrh, Rhubarb (as in Anti-Dysenteric Pills)
7. Intermittent Fever, Cinchona, Wormwood, Catechu, Lesser Centaury (Formulaire Magistral et Memorial Pharmaceutique, 1823)
8. Non-healing sores and ulcers:
i. Catechu is applied with Aloe, Myrrh
ii. Catechu is applied with Myrrh, Frankincense and Dragons Blood
iii. Chronic Ulcers with foetid discharge, Catechu in ointment with a little Copper Sulphate
9. Leukorrhea from Damp-Heat with Phellodendron Huang Bai, Sophora Ku Shen, Alum (Bai Fan), Borneo Camphor (Bing Pian) as a vaginal suppository (as in Xiao Mi Shuan of the Chinese Pharmacopoeia)
10. Mouth and Throat Sores and Ulcers, Catechu with Indigo and Camphor, topically (TCM)
11. Syphilitic Sores, Catechu with Rice wash water and Picrorrhiza (TCM)
12. Toothache, Catechu with Cinnamon and Nutmeg topically (Unani)
13. Hoarseness, Loss of Voice, Catechu with Cinnamon, Nutmeg as pills to be sucked.
14. Bed Sores, as an ointment Catechu with a little Copper Sulphate.

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:

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  • Home
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    • Chinese Materia Medica
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    • Materia Medica of Herbal Medicine PRO >
      • *Symphytum, Comfrey
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