Gentamicin is mainly used to treat infectious diseases of the intestinal tract such as dysentery and enteritis caused by sensitive bacteria. Vitamin B12 is mainly used to treat megaloblastic anemia or adjuvant treatment of neuritis. If you need to use the above drugs, you need to use under the guidance of a doctor. Gentamicin is mainly used for the treatment of dysentery, enteritis and other intestinal infectious diseases caused by sensitive bacteria, and can also be used to clean the intestinal lumen before abdominal surgery. Adverse reactions such as nausea, vomiting, abdominal distension, hearing loss and tinnitus may occur after use. It is contraindicated for those who are allergic to aminoglycoside antibiotics. Vitamin b12 is mainly used for the treatment of megaloblastic anemia or subacute combined degenerative neurological lesions, such as neuritis adjunctive therapy. The use may cause adverse reactions such as hypokalemia and hyperuricemia. Use this drug with caution in patients with glaucoma. To use the above drugs, it is recommended to use under the guidance of a doctor, do not use without authorization.