The main effects of vitamin B12 are: supplementation of hematopoietic raw materials for the treatment of megaloblastic anemia; nutrition of the nerves, to improve the numbness of the hands and feet due to nerve damage and other symptoms.
Folic acid is converted to tetrahydrofolate under the action of vitamin B12, which is involved in the synthesis of thymine deoxyribonucleotide and plays an important role in DNA synthesis. So in case of vitamin B12 deficiency, it leads to impaired DNA synthesis in red blood cells, which results in the development of megaloblastic anemia. Therefore, vitamin B12 can be used to treat megaloblastic anemia.
Diabetic peripheral neuropathy, cervical spondylosis, lumbar intervertebral disc herniation and other diseases may lead to nerve damage, which can cause symptoms of numbness in the endings of the limbs. Vitamin B12 injection or oral methylcobalamin tablets can be used to supplement vitamin B12 to nourish the nerves, thus improving the symptoms caused by nerve damage, but it takes a longer time.
When large doses of vitamin B12 injection are administered, allergic reactions may occur, and patients may have difficulty in swallowing, itchy skin, facial swelling, wheezing and other manifestations, therefore, when using vitamin B12 treatment, patients need to be closely observed to see if any of the above symptoms appear.
It is recommended that patients use vitamin B12 to treat related diseases under the guidance of physicians.