Radix Rehmanniae Pill is a commonly used medicine for treating impotence in the type of spleen and stomach deficiency and cold (weak and cold spleen and stomach), which is used after identification by a doctor. Radix Rehmanniae Pill is suitable for spleen and stomach deficiency and coldness, cold pain in the epigastrium (feeling cold pain in the stomach and abdomen), vomiting and diarrhea, lack of warmth in the hands and feet, and it is also effective in treating impotence. It can remove coldness, replenish male qi and blood, and alleviate deficiencies in the spleen. Due to the different causes of impotence and the different symptoms experienced by patients, when choosing Radix Rehmanniae Pills for the treatment of impotence, it is necessary to pay attention to the contraindications of the drug, and it is necessary to standardize the use of the drug under the guidance of the doctor. Avoid eating indigestible food while taking the drug. It should not be taken by patients with colds and fever. People with severe vomiting and diarrhea should go to the hospital in time. Take this medicine must be strictly according to the dosage, do not take medication without authorization, and should not be taken for a long time.