Deer antler belongs to the Chinese herbal medicine, 70 years old if the waist and knee weakness and other symptoms, you can follow the doctor’s advice to take, but the general health is not recommended to take without authorization. And antlers need to be taken in moderation, starting with a small amount and then slowly increase, not suddenly with a large number of, so as not to cause Yang rising wind, dizziness and other discomforts. Deer antler is the young antlers of the stag of the deer genus Sika deer which is not ossified and densely antlered, it has the effect of tonifying the kidney yang, benefiting the essence and blood, and strengthening the muscles and bones, and it is the main treatment for the kidney yang deficiency (yang qi deficiency of the kidneys), and the deficiency of essence and blood due to the deficiency of the kidneys and bones, and weakness of the knees and waist, etc. The 70 years old people who have the above symptoms can take deer antler to improve their health. Deer antler adverse reactions and contraindications are not clear. It should be noted that the sika deer belongs to the state protected animals, private hunting is illegal. When the 70-year-old man appeared uncomfortable symptoms, it is recommended to timely hospital consultation, under the guidance of a physician to identify the use of antler and other drugs, not blindly use their own drugs.