How long to use adenosylcobalamin depends on the patient’s morbidity as well as the effect of treatment, but in general the drug should not be used for more than half a year, if two weeks after the use of the drug when the effect is not good it is recommended to stop the drug. 1. The drug is a kind of nutritive nerve medicine, clinically can be used for a variety of diseases, such as peripheral neuritis can be applied, peripheral neuropathy patients can be applied, if the patient suffers from spinal cord lesions, such as spinal cord subacute joint degeneration can be applied, spinal cord inflammation can be applied, cerebrovascular disease patients with sensory deficits, such as numbness can also be used. 2. The drug is a kind of auxiliary treatment drugs, use the drug at the same time, to actively treat the original disease, generally routine use of the drug, no obvious toxic side effects, but large doses, long time application, may cause human liver and kidney damage, is not good for the human body. When using the drug must follow the doctor’s advice, and according to the instructions to take the drug.