How long it takes for Compound Colla Corii Asini to work depends on the individual’s condition, with milder symptoms being faster and more severe ones taking longer, but those who have not had relief or worsening of symptoms after 2 weeks of using the medicine should consult a doctor in a timely manner. Compound Colla Corii Asini is a kind of Chinese patent medicine. It is composed of Colla Corii Asini, Red Ginseng, Radix Rehmanniae Praeparata, Radix et Rhizoma Ginseng and Hawthorn. It has the effect of tonifying qi and nourishing blood. It is used for dizziness and dizziness due to deficiency of qi and blood. Palpitations (rapid heartbeat, often accompanied by panic) and insomnia. Loss of appetite and anemia. The adverse reactions and contraindications of Compound Colla Corii Asini are not clear. It is not advisable to take this product at the same time to take quinquefolium, wulin, saponaria or its preparations; should not drink tea and radish, so as not to affect the efficacy of the drug; where the spleen and stomach are weak, vomiting and diarrhea, abdominal distension and loose stools (feces thin and unshaped), coughing and phlegm should not be used with caution; should not be taken by patients with colds. It is recommended that patients use the medication under the guidance of a doctor, do not take the medication on your own, so as not to delay the condition.