The efficacy of Colla Corii Asini stops bleeding, replenishes blood, etc. It can treat symptoms such as blood deficiency and atrophy, heartburn and insomnia. Colla Corii Asini is sweet and flat in nature. It belongs to lung, liver and kidney meridians. It has the effect of tonifying blood and nourishing yin, moistening dryness and stopping bleeding. It can be used for blood deficiency, dizziness, palpitations, muscle impotence, heartburn, insomnia, deficiency wind, lung dryness, cough, coughing, hemoptysis, vomiting and urinating blood, blood in stool and leakage of blood (excessive menstruation or dripping), fetal leakage of pregnancy (small amount of bleeding from the vagina in the early stage of pregnancy), and so on. People with weak spleen and stomach, dyspepsia should not take it. It is recommended that patients can take Colla Corii Asini under the guidance of a doctor and should not take Colla Corii Asini without authorization. In addition, patients with indigestion or weak spleen and stomach are forbidden to take Colla Corii Asini to avoid adverse effects on the organism.