Used primarily in the treatment of peptic ulcers and gastroesophageal reflux disease (GERD), this compound works by reducing stomach acid production. It is effective in healing duodenal ulcers and providing relief from heartburn and acid indigestion. Commonly taken orally, it may also be used to prevent ulcer recurrence and manage conditions like Zollinger-Ellison syndrome, where excessive stomach acid is produced. Its action as an H2 receptor antagonist makes it a valuable option for short-term and maintenance therapy in acid-related disorders.