Oxethazaine is primarily used as a local anesthetic, particularly in the treatment of gastrointestinal disorders. It is effective in relieving pain and discomfort associated with conditions like gastritis, esophagitis, and peptic ulcers. The compound works by numbing the mucosal lining of the stomach and esophagus, providing quick relief from heartburn, acid reflux, and other related symptoms. It is often included in antacid formulations to enhance their soothing effects. Additionally, oxethazaine is utilized in diagnostic procedures such as endoscopy to minimize patient discomfort during the examination. Its fast-acting and localized anesthetic properties make it a valuable component in managing gastrointestinal pain and irritation.