The efficacy of Zangwangcao is to tonify the kidneys and benefit the essence (replenish the kidney essence in the body) to stop cough and phlegm, and to stop bleeding. It is used to treat kidney deficiency, impotence and premature ejaculation, cough and asthma, and insufficient qi and blood. Zangwai Cao goes to the lung and kidney meridians. Zangwai Cao replenishes the kidney essence and benefits the vital essence to treat kidney deficiency, impotence and premature ejaculation, lumbar and knee soreness and weakness (a feeling of soreness and weakness in the lumbar and knee areas), and insufficiency of vital essence and blood. The medicine stops cough and resolves phlegm can treat cough and asthma, phlegm, the medicine stops bleeding can treat all kinds of bleeding and qi and blood deficiency and other conditions. It is forbidden for patients who are allergic to Zangwangcao, and the drug is contraindicated for patients with strong liver fire and hyperactivity of Yang. After the appearance of discomfort should consult a doctor in time, should be in the physician’s identification of the guidance of the choice of drug treatment, not self-medication.