Zuo Gui Wan has the efficacy of nourishing the kidney and tonifying yin, and is used to treat lumbar soreness and knee weakness, night sweating (abnormal sweating after going to sleep, and sweating stops after waking up), and other side effects that are not yet clear. Zuo Gui Wan belongs to nourishing proprietary Chinese medicines. In the formula, Radix Rehmanniae Praeparata, Colla Corii Asini and Colla Corii Asini nourish the liver and kidney and benefit the essence and blood; Cuscuta, Fructus Lycii and Cornu Cervi Pantotrichum nourish the kidney and benefit the essence (replenish the essence of the kidney in the body), fix the essence and shrink the urine (consolidate the semen and urine and prevent the leakage of essence at will), and brighten the eyes; Bovine Knees nourish the liver and kidney and strengthen the tendons and bones; and Chinese yam has the effect of invigorating the spleen, harmonizing the stomach and restoring the function of the spleen and stomach and replenishing the kidney and astringing essence. The combination of these herbs can bring out the effect of nourishing kidney yin. Zuo Gui Wan is mainly used for the treatment of dizziness and dizziness caused by deficiency of kidney yin, lumbar and knee soreness and weakness (the feeling of lumbar and knee soreness and weakness), hot flashes and night sweating (sweating abnormally after going to sleep, and sweating stops after waking up), spermatorrhea and premature ejaculation, excessive menstruation, and disintegration (excessive menstruation or more than a few drops), etc. The adverse effects are still not clear, but pay attention to the fact that children are forbidden to use, and pregnant women are not allowed to use it. If you need to take Zuoqui Pill, it is recommended that patients under the guidance of a traditional Chinese medicine practitioner to standardize the use of medication, and not blindly self-medication, so as not to cause delays in the condition.