In general, people with spleen and kidney yang deficiency (deficiency of yang qi in the spleen and kidneys) can take Gui Fu Di Huang Wan effectively, although the exact effect may vary due to individual differences, and this medicine should be used in accordance with medical advice. Gui Fu Di Huang Wan consists of Radix Rehmanniae Praeparata, Radix Cinnamomum Cassiae, Rhizoma Zedoariae, Rhizoma Dioscoreae, Radix Rehmanniae Praeparatae, Cornu Cervi Pantotrichum and Radix et Rhizoma Mudanensis. Gui Fu Di Huang Wan has the effect of warming and tonifying kidney yang (warming and replenishing the yang energy of the kidneys) and is indicated for deficiency of kidney yang (lack of yang energy of the kidneys), dysuria (unruly urination) or regurgitation of urine, and soreness and coldness of the lower back and knees. The drug should not be given to people with deficiency of yin and internal heat and fever from colds, and those who are allergic to the drug, need to be prohibited from using it. The medicinal properties of Radix Psoraleae and Cinnamomum Cassiae are pungent and hot, entering the spleen and kidney meridians. They have the efficacy of restoring yang to save the body (rescuing fainting, unconsciousness, etc. by warming and replenishing yang), tonifying fire to help yang (replenishing yang in the body), inducing fire to return to the vital energy (inhibiting fire evils from the kidneys to rise), and dispersing cold and relieving pain (alleviating pain by dispelling cold in the body), which is effective for both kidney yang and spleen yang deficiencies. However, due to differences in the severity of the condition and the body’s sensitivity to the medication, there may be differences in the specific effects of Gui Fu Di Huang Wan. Although Gui Fu Di Huang Wan is not a prescription drug, and the adverse effects are not clear, you should not use the drug without authorization, and must follow the doctor’s instructions to use the drug.