40 years old man if belongs to the scope of the indications can eat Fufang Xuanju capsule, but need to strictly follow the doctor’s instructions for medication. The main ingredients of Compound Xuanju Capsules are black ants, Epimedium, Chinese wolfberry, snakebeds, which mainly has the effect of warming the kidney, strengthening the yang, benefiting the essence, and dispelling wind-dampness. Compound Xuanju Capsules can be used clinically for the treatment of kidney yang deficiency, which is characterized by dysphoria, low libido, cold and slippery ejaculation of semen, mental fatigue (mental exhaustion and physical weakness), lumbar and knee soreness and weakness (a feeling of soreness and weakness of the lumbar and knee), and erectile dysfunction, etc. It can also improve rheumatoid arthritis. It can also improve joint pain and swelling caused by rheumatoid arthritis kidney yang deficiency (lack of yang energy in the kidneys) and wind-cold paralytic obstruction evidence. For 40-year-old men within the above indications can take the drug, but some patients may experience adverse reactions such as nausea, skin allergies, stomach distension, burning sensation in the stomach and epigastrium after taking the drug. The contraindications of this drug are not clear, but for patients with yin deficiency and fire (deficiency of yin and essence in the body and the appearance of hyperactive deficiency fire), allergies and a history of drug allergy, the drug should be used under the guidance of a doctor. If the patient has the above adverse reactions, it is also necessary to try to take the drug after meals, and appropriately reduce the dosage of the drug or follow the doctor’s instructions to use the drug. It is recommended that 40-year-old men take Fufang Xuanju capsule strictly follow the doctor’s instructions, not self-medication, so as not to cause serious consequences.