Methylcobalamin and Glutamine taken together can play a role in regulating the dysfunction of the vegetative nervous system (autonomic nervous system) and endocrine balance disorders, increasing the excitability of nerve fibers, improving the blood picture of anemia, and promoting the formation of myelin sheaths of neurons. It should be used under the guidance of a doctor. Methylcobalamin is mainly used for the treatment of peripheral neuropathy and megaloblastic anemia caused by vitamin B12 deficiency. This drug can promote protein and nucleic acid synthesis, improve anemia blood, improve nerve fiber excitability, and promote neuronal myelin formation. Glutamine is indicated for diseases such as autonomic dysfunction, premenstrual tension, etc. This drug has a regulating effect on the vegetative nerve and endocrine. Mecobalamin may cause side effects such as loss of appetite, nausea and vomiting, diarrhea. The drug is contraindicated in people who are allergic to it. It should not be used by pregnant and lactating women. If there is no significant effect after one month of use, there is no need to continue using the drug. Those who work with mercury, as well as its compounds, should not take this drug in large quantities for a long time. Glutathione may cause side effects such as upset stomach, dry mouth, fatigue, skin rashes, swelling of the breasts. It should be used with caution in people with stomach and duodenal ulcers and is contraindicated in people who are allergic to this drug. Patients need to read the instructions for use of the drug or follow the doctor’s advice when taking Glutamine and Mecobalamin.