Deer antler has the effect of strengthening yang and tonifying the kidneys, reinforcing tendons and bones, generating essence and blood, regulating Chong Ren, and supporting toxicity and muscle growth (discharging poisonous evils and promoting muscle growth and wound healing). Taking deer antler has a certain therapeutic effect on spleen and kidney yang deficiency (deficiency of yang in the spleen and kidneys), and the specific therapeutic effect varies according to the individual and the medical condition. Deer antler can strengthen yang and tonify the kidney, treating premature ejaculation, impotence and infertility caused by kidney yang deficiency. Deer antler can tonify essence and blood, treating impotence and weakness of the lower limbs, cold pain in the waist and spine, and emaciation caused by insufficient essence and blood. Deer antler can regulate the flushing and renting channels, treating the excessive amount of menstrual discharge caused by deficiency and coldness of the flushing and renting channels (deficiency of yang qi that cannot warm the flushing and renting channels), and so on. The adverse reactions and contraindications of Deer Antler are not exact, and Deer Antler can be taken under the supervision of a physician for spleen and kidney yang deficiency.