Neurotropin and methylcobalamin do not have the same effect and belong to two different drugs. 1. Neurotropin: the drug is also known as cowpox vaccination rabbit inflammatory skin extract tablets, in the clinic can be used for the treatment of lumbago, frozen shoulder, deformational arthritis and neck-shoulder-carpal tunnel syndrome. However, the drug is prohibited for patients with a past history of allergic reactions, and during the use of the drug to avoid chewing, need to be swallowed directly, but also to avoid crushing and mixing. 2. Methylcobalamin: Methylcobalamin is endogenous vitamin B12, which is mainly used for the treatment of megaloblastic anemia caused by vitamin B12 deficiency in the clinic, and can also be used for the treatment of peripheral neuropathy. It is also used in the treatment of peripheral neuropathy. It is contraindicated for those who are allergic to the drug. During the period of taking the drug, patients should pay attention to the workers engaged in mercury and its compounds, and should not be taken in large quantities for a long time. If the patient takes more than 1 month is ineffective, there is no need to continue to take. Patients are advised to use Neurotropin and Methylcobalamin in strict compliance with the doctor’s instructions and pay attention to its related matters so as not to cause damage to the organism.