Methylcobalamin Tablets can be used for the treatment of peripheral neuropathy caused by diabetes mellitus and not for the treatment of diabetes mellitus itself. Methylcobalamin Tablets can increase the excitability of nerve fibers and inhibit neurodegeneration, which is suitable for the treatment of peripheral neuropathy. Because the complications of diabetes include peripheral neuropathy, the drug can be used in the treatment of diabetic peripheral neuropathy, the specific efficacy varies from person to person. Note that groups engaged in mercury and mercury compounds should not take large quantities of methylcobalamin tablets for a long time, and groups allergic to methylcobalamin tablets should be prohibited from using them. Adverse reactions that may occur during the use of the drug include nausea, vomiting, loss of appetite, diarrhea, skin rash and so on. Specific medication matters should be carried out under the guidance of specialized physicians.