There is no such thing as seven kinds of people should not take Chicken Neijin, and those with spleen deficiency and no accumulation and stagnation should not take Chicken Neijin. Chicken Neijin was first published in Shennong Ben Cao Jing (The Divine Husbandman’s Classic of the Materia Medica). It is flat in nature, sweet in taste, and belongs to the spleen, stomach and bladder meridians. Its basic effects are to strengthen the stomach and eliminate food stagnation, eliminate stagnation and dissolve stones, and astringent the essence and stop spermatorrhea (consolidate the semen and prevent spermatorrhea). It is mainly used in treating spleen deficiency and food accumulation (the accumulation of food in the stomach due to indigestion), pediatric chancre (a kind of chronic disease of children, manifesting as emaciation, abnormal diet, abdominal distension, thinning and yellowing of hair, etc.), indigestion, yellow muscle thinness, stonelike bleeding (discharging sand and stones during urination, or sudden interruption of urination, pain in the urethra, intolerable abdominal and lumbar cramps), astringent pain in urination, bilious distension, dystocia (pain in the region of the coxa and ribs), and so on. The adverse reactions and contraindications of Chicken Nei Jin are not clear. This product should not be taken by those with spleen deficiency without accumulation and stagnation. If you need to use the medicine, you should consult your doctor first and use it under the doctor’s guidance, do not blindly self-medicate.