The main ingredient is donkey skin. The supplementary ingredients are yellow wine, rock sugar and soybean oil.

Pharmacological Actions of Colla Corii Asini

Effects on Blood CellsAfter a large amount of blood was drawn to cause hemorrhagic anemia in dogs, Colla Corii Asini solution was used to gavage (30 g/day, ****10 days), and its erythrocytes and hemoglobin increased at a faster rate than that of the control group.

2. Effect on calcium metabolism Gum can improve calcium balance in animals. Gastric gavage with Colla Corii Asini, together with calcium carbonate in food, can increase calcium absorption and retention in the body, so that the blood calcium slightly increased; this calcium-carrying effect may be related to the glycine contained in Colla Corii Asini.

3. Preventing and controlling progressive muscular dystrophy by feeding guinea pigs with special feed, causing progressive muscular dystrophy in all of them; only 20% of those who added Colla Corii Asini occurred, and most of them were sound and asymptomatic. After the disease had already occurred, the use of Agaricus blazei also led to a gradual reduction of the disease. The authors believe that vitamin E can prevent and control this disease, and the reason for the effectiveness of gum may be related to its ability to prevent the oxidative destruction of vitamin E in the feed. The special feed has a moderate amount of vitamin E, but also contains animal fats, easy to make vitamin E oxidation failure and cause this disease.

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