There are many medicines with the effect of warming the kidneys and strengthening the yang (warming and tonifying the yang energy in the kidneys), such as Cistanchis, Morinda Citriodora, Cinnamon, and so on. 1. Cistanchis: It has the effect of tonifying the kidney, moistening the intestines and laxatives, and can be used for impotence and premature ejaculation caused by deficiency of kidney yang and insufficient essence and blood, infertility of uterine coldness, lumbar-knee pain, impotence, constipation and so on. Yin deficiency fire (Yin essence deficiency in the body, there is excessive fire) and loose stool (feces thin not shaped) diarrhea should not be served, hot constipation should not be served. 2. Baji Tian: with tonifying the kidney to help Yang, dispel wind and dampness (get rid of the body wind and dampness) effect, can be used for impotence, uterine cold infertility, frequent urination, rheumatism, lumbar and knee pain and so on. Allergic to this product is prohibited. 3. Cinnamon: has the effect of tonifying fire to help yang (replenishing the body’s yang), dispersing cold and relieving pain (by removing the body’s cold to relieve pain), blood circulation and menstruation, can be used for impotence and cold uterus caused by renal yang insufficiency (lack of yang in the kidneys), dizziness and redness of the eyes and the heart and abdominal cold pain (the location of the heart and abdominal cold and painful feeling), and so on. It is contraindicated for those with yin deficiency and fire exuberance, and should be used with caution for those with bleeding tendency and pregnant women. Specific medication should be under the guidance of a physician, do not take medication without authorization, so as not to cause adverse reactions.