What are the benefits and effects of deer antler

Deer antler is effective in strengthening muscles and bones, benefiting essence and blood, etc. It is used to treat deficiency of essence and blood, impotence and weakness of muscles and bones.
Deer antler is a kind of sweet and warm Chinese herbal medicine, belongs to the kidney meridian, liver meridian, has the effect of benefiting essence and blood, strengthening kidney yang, regulating Chong Ren, strengthening muscles and bones, and supporting sores and poisons.
Deer antler can be used for deficiency of essence and blood, deficiency of kidney yang, leanness, impotence and weakness of muscles and bones, dizziness, tinnitus, deafness, fatigue (lack of spirit), fear of cold, cold pain in lumbar and spinal cord, slippery sperm and impotence, infertility of uterine cold, leucorrhoea (menstrual bleeding with excessive amount of menstruation or more than a few drops), yin and gangrene (is a kind of general term for a type of slow condition of yin sores and ulcers disease), not convergence, and so on.
Yin deficiency and hyperactivity of yang manifested as dizziness, tinnitus, five heart heat (two hearts and two feet of the heart fever, and self-consciousness of the heart and chest irritability and sultriness), red face, red eyes, head and eyes, head and eyes distension, irritability, etc. should not be consumed by the deer antler crowd.
Deer antlers should not be consumed by people who have heat in the blood (the deepest stage or location of the disease among the four periods of warm disease, Wei Qi and Ying Blood), which is manifested by reddish color of the skin rash, itching, heartburn, dry mouth and thirst, dry stools, and yellow urine.
In addition, antlers should not be consumed by people with five heartburns and heat, night sweating (abnormal sweating after going to sleep, sweating stops after waking up), stomach fire, exogenous fever, or phlegm-heat in the lungs.
Deer antler adverse reactions are not clear, should be identified by a doctor to use the drug.