Epimedium is used for tonifying kidney yang, strengthening muscles and bones, and dispelling wind-dampness. Cistanchis is used for tonifying kidney yang, benefiting essence and blood, and moistening the bowels and laxatives, and lock yang is used for tonifying kidney yang, benefiting essence and blood, and moistening the bowels and laxatives. Epimedium is pungent, sweet, warm and belongs to the liver and kidney meridians, it can tonify kidney yang, strengthen muscles and bones and dispel wind-dampness. It can be used for kidney yang deficiency, impotence and spermatorrhea, impotence of muscles and bones, numbness and constriction. Cistanchis is sweet, salty and warm in nature, belonging to the kidney and large intestine meridian, it has the effect of tonifying kidney yang, benefiting essence and blood, moistening intestines and laxative effect, and can be used for kidney yang deficiency, essence and blood deficiency, impotence and infertility, lumbar and knee soreness, sinewy and weak, intestinal dryness and constipation. Lock Yang taste sweet, warm, to the liver, kidney, large intestine meridian, has the effect of tonifying kidney yang, benefit essence and blood, moistening intestines and laxatives, can be used for kidney yang insufficiency, deficiency of essence and blood, lumbar and knee impotence, impotence and slippery spermatozoa, intestinal dryness and constipation. It should be noted that Epimedium should not be taken by people with yin deficiency and fire, Cistanchis should not be taken by people with yin deficiency and fire and loose stool (thin and unshaped feces) and diarrhea, and should not be taken by people with constipation of hot constipation, and should not be taken by people with yin deficiency and fire, deficiency of the spleen, and constipation of solid heat. The adverse reactions of the three are not clear. The use of medication should be under the guidance of a doctor, it is not recommended to take medication on their own.