Deer antler preserved for 10 years generally can not be taken, specific can consult a professional pharmacist.
Under normal circumstances, antler velvet antlers can not be taken after 10 years, because at this time it is likely to have mold or deterioration, insect infestation and other phenomena, may reduce the efficacy of the drug, or even lose its medicinal value.
Patients need to pay attention to the air humidity and sealing problems when preserving antlers, such as placed in a cool dry place, do not put in a humid place, usually in three to five years, the efficacy of antlers generally will not appear changes.
Deer antler is the young horns of the deer family Deer, Sika deer or horse deer and other stags that have not yet ossified and have velvet hair on their heads, with the effect of tonifying kidney yang, benefiting essence and blood, strengthening muscles and bones, regulating the Chong Ren (regulating the Chong and Ren veins), etc. It is mainly used in the treatment of the evidence of insufficient essence and blood, and the evidence of kidney yang deficiency and weakening, see the weakness of the waist and knees, mental tiredness, dizziness, deafness, darkness of the eyes, impotence, and spermatorrhea, etc. It is not recommended for people with fever.
Deer antler is prohibited for people with fever, and is contraindicated for people with yin deficiency and hyperactivity. At present, the adverse reactions of patients after taking is not clear. It is recommended that patients should use deer antler under the guidance of a doctor, do not use without authorization to avoid delay.