Here I will introduce several major types of medications for treating gastric ulcers, but specific medication use should be consulted with a doctor or pharmacist according to individual conditions. The first major type is anti-gastric acid medications. Since gastric acid plays a significant role in ulcerative lesions, it is considered appropriate to treat gastric ulcers by adjusting the stomach environment to a pH of 3.5. Anti-acid medications include antacids, H2 receptor antagonists, proton pump inhibitors, and others. The second major type is gastric mucosal protectants, which include some class B drugs, prostaglandin derivatives, and some containing sucralfate. The third major type is medications that treat Helicobacter pylori, with quadruple therapy currently being a common practice. Note: Medications should be used under the guidance of a doctor.