Zhi Bai refers to the proprietary Chinese medicine Zhi Bai Di Huang Wan (知柏地黄丸), which is effective in nourishing yin and lowering fire (nourishing yin essence and lowering fire). Zhi Bai Di Huang Wan consists of Zhi Mu, Huang Bai, Radix Rehmanniae Praeparata, Cornu Cervi Pantotrichum, Mudan Pi, Chinese yam, Poria, and Ze Xie Di. Among them, Zhi Mu and Huang Bai clear away heat and nourish yin, Radix Rehmanniae Praeparata nourishes yin in the kidneys, Chinese yam and Cornu Cervi Pantotrichum replenish kidney qi and nourish yin, Poria strengthens the spleen to dispel dampness (to expel dampness by replenishing the spleen), Ze Xie Di diarrhea clears away heat and induces diuresis, and Mudan Pi clears away heat and cools the blood (to clear away heat and relieve heat from blood). Together, these herbs work to nourish yin and reduce fire. Zhi Bai Di Huang Wan can be used for symptoms such as hot flashes (a burst of fever), night sweating (abnormal sweating after going to sleep and stopping after waking up), dry mouth and sore throat, tinnitus, spermatorrhea, and short and red urination (small amount of urination, dark yellow in color), etc., which are caused by deficiency of yin and heat (deficiency of yin and essence in the body and the emergence of hyperactivity of deficiency fire). The adverse reactions of this product are not yet clear, note that this product is prohibited for those who are allergic to this product, and allergic persons should be cautious. If you need to use this product, you should be under the guidance of a physician to identify the evidence, do not blindly use your own medication, so as not to cause adverse reactions.