Six-flavored Di Huang Wan tonifies kidney yin and Gui Fu Di Huang Wan tonifies kidney yang. Taking the two together can tonify both kidney yin and kidney yang deficiency. However, in terms of the composition of the two medicines, Gui Fu Di Huang Wan has two more herbs, cinnamon and epimedium, on top of Liu Wei Di Huang Wan, so the two are similar in composition, and it is recommended that you consult your doctor before taking both. Six-flavored Di Huang Pill belongs to the Chinese patent medicines, which is composed of ripened di Huang, Chinese yam and Poria, etc. It has the efficacy of nourishing yin and tonifying the kidneys. It can be used to treat kidney yin deficiency, dizziness, lumbar and knee impotence, hot flashes, and night sweating (abnormal sweating after going to sleep, but sweating stops after waking up). It should be noted that it should not be used by patients with cold and fever. Gui Fu Di Huang Wan is a proprietary Chinese medicine composed of cinnamon, moutanpi and poria. It has the effect of warming and tonifying kidney yang. It is used for deficiency of kidney yang, soreness and coldness of the waist and knees, phlegm (a pathological product formed by impaired metabolism of water and fluid), wheezing and coughing, and so on. Its adverse effects are not clear. During treatment, abstinence from sexual intercourse is recommended. If you need to take both, it is recommended to follow the doctor’s prescription.