The dosage of Huang Jing in the Pharmacopoeia is 9~15g. Sweet in taste and neutral in nature, Huang Jing has the effects of nourishing yin and moistening the lungs (nourishing the lungs by replenishing the lung fluid), tonifying the spleen, benefiting the qi, and nourishing the kidneys and filling in the essence. It can be used to treat conditions such as yin deficiency and dry cough, prolonged cough with exertion, weakness of the spleen and stomach, deficiency of kidney essence, and lumbar and knee soreness (a feeling of soreness and weakness in the lumbar and knee regions). Huang Jing has many effects, and the dosage specified in the Pharmacopoeia is 9~15g, which should be used under the guidance of a physician and in accordance with medical advice. It should be noted that Huang Jing should not be taken by those who suffer from cold and diarrhea, phlegm-dampness (stomach distension and discomfort) and stagnation of qi, and should be used with caution by those who are allergic to it. In addition, its adverse effects are not clear, it is recommended to follow the doctor’s instructions, do not blindly use the drug, in order to avoid adverse effects.