Wu Ling Capsules can treat insomnia caused by heart-kidney disharmony (heart fire, kidney yin deficiency, dysfunction of the physiological functions of the heart and kidneys), and can be used alone to obtain better efficacy in symptomatic treatment, and can be combined with medicines according to the condition, there is no fixed collocation. The main ingredient of Wu Ling Capsules is Wu Ling Mushroom Powder, which has the effect of nourishing the heart and tranquilizing the mind (stabilizing the mind by nourishing the heart), tonifying the kidneys and strengthening the brain, and is mainly used for the treatment of insomnia caused by disorders of the heart and kidneys, mental fatigue (mental exhaustion, physical weakness), forgetfulness, lumbar and knee soreness and tenderness (feeling of soreness and tenderness of the lumbar and knee areas), palpitation (accelerated heartbeat often accompanied with heart palpitations), heartburn, dizziness, ringing in the ears, and so on. Adverse reactions of taking this product include dizziness, fatigue, drowsiness, itching, rash, intestinal gas and bloating, dry mouth, stomach discomfort, abdominal pain, vomiting, diarrhea, nausea, etc. Contraindications are not clear. It is recommended to go to the regular hospital in time, follow the doctor’s instructions for symptomatic treatment, is not recommended to match their own medication.