Zengjian Oral Liquid has the health function of immunomodulation and its side effects are currently unknown. It should be noted that Zengjian Oral Liquid is a health food and does not have the therapeutic effect of a medicine. Zengjian Oral Liquid is an immunomodulator – complex polysaccharide extracted from natural plants such as shiitake mushrooms, poria, and silver fungus, and supplemented with Chinese medicines such as cassia seeds, enoki mushrooms, wolfberries, chrysanthemums, and mulberries, etc., which are used to make this product. Zengjian Oral Liquid has the health care effect of immunomodulation, which can regulate the body’s resistance and prevent diseases, and is suitable for the general population, the weak or the chronically ill. The adverse reactions and contraindications of Zengjian Oral Liquid are not clear, and it should be noted that Zengjian Oral Liquid is a health care product and has no therapeutic effect of drugs. After discomfort should seek medical attention in time, under the guidance of the doctor to choose medication, not self-medication.