Greenlife Chinese herb database - Donkey-hide Gelatin
Latin Name
Colla Corii Asini
Chinese Name
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ejiao
Origin
It refers to gelatin made of the skin of ass (Equus asinus L., Equidae).
Distribution
It is mainly produced in Shangdong and Zhejiang provinces.
Nature and Affinity
It is sweet in taste and neutral in nature. Its therapeutic action is related to the Channels of the Lung, Liver and Kidney.
Caution
Because it is glutinous, greasy and not easy to digest, patients with weakness of the spleen and stomach function manifested as poor appetite, indigestion, vomiting and diarrhoea are contraindicated.
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CHARACTERISTICS
  Rectangular or cuboid in shape, it varies in size with different manufacturers. The surface is smooth and lustrous, brownish-black or pitch-black in colour. It is slightly transparent when observed against light, and is fragile, easy to break. The section is smooth, lustrous and brownish-black or pitch-black in colour. It is weak in smell and slightly sweet in taste.
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ACTIONS AND INDICATIONS
  1.Tonifying and enriching the blood.

It has a good efficacy in tonifying and enriching blood and is applied to treating dizziness, palpitation, sallow complexion, myoatrophy, myasthenia and insomnia with vexation due to deficiency of blood.

2.Arresting bleeding.

It is an important drug for bleeding-arresting and used in the treatment of hematemesis, apostaxis, hemoptysis, hematuria, hemafecia, metrorrhagia and metrostaxis. Donkey-hide Gelatin with Cattail Pollen is the common drug to be prescribed for arresting bleeding.

3.Nourishing yin.

It is used to treat vexation and insomnia, flushed tongue and thready and rapid pulse due to yin deficiency.

4.Moistening the lung.

It is used in treating chronic cough due to pulmonary tuberculosis or irritant cough due to deficiency of yin, etc. Donkey-hide gelatin with clam powder is the first drug of choice in moistening the lung.
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ADMINISTRATION AND DOSAGE
  3-9 grams are dissolved in water or yellow rice wine, take the gelatin solution daily. If the gelatin is prescribed with other medicinal substances, dissolve the gelatin and decoct other medicinal substances separately and then mix the gelatin solution and the decoction for oral use. Donkey-hide gelatin with cattail pollen is most eligible for making pills and powder.
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REMARKS
   
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