Gentamicin can treat gastritis, but it is not effective on its own. Gastritis should be treated according to the specific condition of the patient and can be divided into acute gastritis and chronic gastritis. 1. Acute gastritis: actively treat the primary disease, such as prohibiting the taking of non-steroidal anti-inflammatory drugs, etc., given to the acid control, gastric mucosa protection treatment, such as omeprazole, magnesium aluminum carbonate, etc.. 2. Chronic gastritis: give acid control, promote gastric power treatment, such as rabeprazole, domperidone. For those who have Helicobacter pylori, it is recommended to give quadruple drug therapy, and antibiotics generally choose levofloxacin, clarithromycin, metronidazole, etc. If there is gastritis, it can use gentamicin. If there is gastritis, it can be treated with gentamicin, but the effect is not obvious when used alone. Adverse reactions of gentamicin include nausea, hearing loss, etc. Use with caution. The above drugs should be used under the guidance of a professional physician, and patients with gastritis should seek timely medical attention and early treatment under the guidance of a professional physician.