Used to treat conditions involving excess stomach acid, such as gastroesophageal reflux disease (GERD), peptic ulcer disease, and Zollinger-Ellison syndrome. It works by reducing acid production in the stomach, helping to relieve symptoms like heartburn and acid regurgitation. Also used in combination with antibiotics to eradicate Helicobacter pylori, a bacterium linked to ulcers. Provides healing of erosive esophagitis and helps prevent damage to the esophagus caused by chronic acid exposure. Effective for short-term and long-term management of acid-related disorders.