Zuo Gui Wan has the effect of nourishing yin and tonifying the kidney, filling the essence and marrow (replenishing the essence and promoting the development of bone marrow), and is mainly used for treating deficiency of true yin, such as dizziness and dizziness, soreness of the waist and weakness of the legs, spermatorrhea, self-sweating (involuntary sweating during the daytime, which is aggravated with the slightest movement), night sweating (sweating abnormally after falling asleep, but sweating stops when waking up), and dryness of the mouth and tongue. In this formula, Radix Rehmanniae Praeparata nourishes kidney yin and benefits essence to replenish the deficiency of true yin; Cornu Cervi Pantotrichum nourishes liver and kidney and replenishes essence; Chinese yam nourishes the spleen and yin and nourishes the kidney to consolidate essence; Colla Corii Corii Asiatica nourishes yin and nourishes the marrow; Colla Corii Corii Asiatica nourishes essence and blood and warms and strengthens the kidney yang; Fructus Lycii replenishes the liver and kidney and benefits essence; Semen Cuscutae replenishes the liver and kidney and benefits essence; Fructus Cuscutae nourishes the liver and kidney and benefits essence; Radix Bovineae is beneficial to the liver and kidney and strengthens the muscles. The adverse reactions and contraindications of this formula are not known. When discomfort occurs, one should consult a doctor in time, and choose medication under the guidance of physician’s diagnosis and guidance, and should not use medication on one’s own in order to avoid delaying the condition.