Compound Xuanju capsule should be used when the body appears the indications of the drug, usually used before meals, but there is no such thing as when is the best time to eat. Compound Xuanju Capsule is composed of Chinese wolfberry, Epimedium, snakebeds, etc. It has the efficacy of warming the kidneys and assisting the yang (warming and tonifying the yang qi of the kidneys), dispelling wind-dampness, and benefiting the sperm, and is suitable for patients with renal yang deficiency, which is seen as lumbar and knee soreness and weakness (feeling of soreness and weakness of the waist and knees), mental lethargy, low libido, impotence, premature ejaculation, chilling of the limbs (being afraid of the cold, and the limbs being ice-cold), and frequent nocturnal urination. It is also indicated for the treatment of kidney yang deficiency (lack of yang energy in the kidneys), joint pain and swelling caused by wind-cold-damp obstruction. This product is usually used before meals, but patients may experience adverse reactions such as nausea, vomiting and dizziness after taking the medicine. It is recommended to be taken under the guidance of a doctor for those who are suffering from yin deficiency and fire (deficiency of yin essence in the body and the appearance of hyperactive deficiency fire). Compound Xuanju Capsules need to be selected under the guidance of a professional Chinese medicine practitioner to identify the evidence, can not be used blindly, after the use of discomfort, consult a doctor in a timely manner, so as to avoid delaying the condition.