The side effects and hazards of Compound Colla Corii Asini Syrup are not clear. Compound Colla Corii Asini Syrup is composed of Colla Corii Asini, Red Ginseng, Radix Rehmanniae Praeparata, Radix et Rhizoma Ginseng, Radix et Rhizoma Ginseng, and Fructus Crataegi. The drug can be used in the treatment of deficiency of qi and blood, dizziness, palpitation (rapid heartbeat, often accompanied by panic) insomnia, and loss of appetite. The adverse effects and contraindications of this drug are not clear, but it should not be used in patients with cold and fever, weak spleen and stomach, vomiting and diarrhea, abdominal distension and loose stools (thin and unformed stools). Before using Compound Colla Corii Asini, it is recommended to go to a regular hospital for consultation and treatment under the guidance of a professional physician, rather than taking it on your own to avoid delaying the condition.