Er Zhi Wan and Liu Wei Di Huang Wan are different in terms of drug composition, efficacy and main treatment diseases, as follows: Different drug composition: Er Zhi Wan consists of the ink lily and chasteberry; Liu Wei Di Huang Wan consists of dihuang, yam, dogwood, ze diarrhea, poria, danpi and so on. Differences in efficacy: Er Zhi Wan has the effect of tonifying the liver and kidney, nourishing Yin and stopping bleeding; Liu Wei Di Huang Wan has the effect of nourishing Yin and tonifying the kidney. Different treatments: Er Zhi Wan is mainly used for the treatment of dizziness and tinnitus, dry throat and nose, lumbar and knee pain, and heavy menstruation caused by yin deficiency of the liver and kidney. Liu Wei Di Huang Wan is mainly used for the treatment of kidney yin deficiency, dizziness, tinnitus, lumbar and knee soreness, bone vapor and tidal fever (a burst of heat, feel the heat from the inside of the bone to the outside of the penetration of the heat), night sweating (sleep sweating abnormal, wake up sweating to stop), spermatorrhea and other diseases. Both adverse reactions and contraindications are not clear, if you need to take, please under the guidance of a professional physician to identify the evidence, do not self-medication, so as not to affect your health.