Ling Xian San has the effects of nourishing the kidney and liver, tonifying the lung and spleen, tranquilizing the heart and activating the blood, and can be used to treat the deficiency of essence and vital energy of the five organs in middle-aged and old people, dryness of the blood and intestines, lack of teeth, thinness of the body, and premature whitening of the beard and hair. Ling Xian San is composed of Poria cocos, Jushengzi, Tianmendong, Atractylodes macrocephala, peach kernel and Rhizoma Polygonati Odorati. Among them, Poria cocos has the efficacy of tranquilizing the heart and tranquillizing the mind, benefiting the spleen and harmonizing the stomach; Jushengzi has the efficacy of benefiting the liver and kidneys, invigorating the blood and making the hair white; Tianmendong has the efficacy of nourishing Yin and lowering the fire (nourishing the Yin essence and decreasing the fire), treating the lungs and relieving cough. Rhizoma Atractylodis Macrocephalae has the effect of strengthening the spleen and benefiting qi; peach kernel has the effect of activating blood circulation, eliminating blood stasis, relieving cough and calming asthma (stopping cough and calming wheezing); and Rhizoma Atractylodis Macrocephalae has the effect of strengthening the spleen, moistening the lungs and benefiting the kidney. Its adverse reactions and contraindications are not clear, it is recommended to use this product under the guidance of a doctor with evidence, not blindly, so as not to cause harm to the body.