Side effects such as bloating, nausea, belching (hiccups) may be caused by taking Agaricus Cake. Contraindications for this product are not known. Colla Corii Asini Cake’s is mainly composed of Colla Corii Asini. Colla Corii Asini is a solid gum made from the dried or fresh skin of donkeys of the family Equidae by decocting and concentrating, which has the effect of tonifying blood and nourishing yin, moistening dryness and stopping bleeding. It is used in the treatment of blood deficiency and atrophy, dizziness and palpitations (rapid heartbeat, often accompanied by panic), muscle impotence and weakness, restlessness and insomnia, internal movement of deficiency wind, cough with dryness of the lungs, coughing and haemoptysis with exertion, vomiting and urination of blood, and bleeding in stools and leakage of menstruation (excessive menstruation or more than a few drops). Since Colla Corii Asini tends to be nourishing and greasy, overdose will aggravate the burden on the spleen and stomach, causing bloating, nausea, vomiting and other phenomena. If necessary, it is recommended to go to a regular hospital for consultation and treatment under the guidance of a medical practitioner who specializes in diagnosis and treatment.