Zhi Bai Di Huang Wan can be used to treat constipation caused by kidney yin deficiency. Zhi Bai Di Huang Wan is a common Chinese patent medicine in clinic, which is composed of Zhi Mu, Huang Bai, Radix Rehmanniae Praeparata, Cornu Cervi Pantotrichum, Mudan Pi, Chinese yam, Ze Xie Di, Poria and so on, and it has the efficacy of nourishing yin and lowering fire (nourishing the yin essence and lowering the fire). In clinical practice, the drug is mainly used to treat conditions such as hot flashes (a burst of fever), night sweating (abnormal sweating after going to sleep and stopping after waking up), dry mouth and throat, tinnitus and deafness, spermatorrhea, and short and red urination (small amount of urination, dark yellow in color), etc. Therefore, if constipation is due to insufficiency of kidney and yin, Zhi Bai Di Huang Wan can be a symptomatic treatment. It should be noted that the contraindications and adverse effects of this product are not yet clear, but avoid eating indigestible food during the period of consumption, at the same time, should not be taken by patients with colds and fever. If necessary, it is recommended to go to a regular hospital for treatment under the guidance of a professional physician.