Deer antler is derived from the young unboned antlers of male deer of the family Deeridae. Deer antler is warm in nature, sweet and salty in taste, belongs to the kidney and liver meridians, and has the effect of strengthening kidney yang, benefiting essence and blood, strengthening tendons and bones, regulating the flank and sores. Deer antler is a powerful herb that can strengthen the kidney and yang, benefit the essence and blood, strengthen the muscles and bones, regulate the flank and regulate the sores and toxins by warming and tonifying. It can be used clinically to treat: 1) impotence and spermatorrhea due to deficiency of kidney yang, and infertility due to cold in the uterus; 2) weakness of tendons and bones due to deficiency of essence and blood; 3) women with deficiency of cold in the flushing and the belt vein, and excessive leakage of the belt; 4) gangrene and sores that do not converge. When taking antler, you should pay attention to the following points: 1, the way to take antler is to grind powder, antler into soup or wine can not make its active ingredients completely dissolved, can not be fully utilized; 2, this product is hot and intense, the drug is harsh, yin deficiency, hyperactivity, warmth, phlegm fire internal seepage, blood heat bleeding and external heat illness should not be taken. The daily dose of antler is usually 1-2g.