Riapanta 40 mg (Pantoprazole) is a proton pump inhibitor (PPI) used to reduce stomach acid production. It is commonly prescribed for conditions such as: Gastroesophageal Reflux Disease (GERD), Peptic Ulcers (stomach and duodenal ulcers),Erosive Esophagitis (inflammation of the esophagus),Zollinger-Ellison Syndrome (a rare condition causing excessive acid production)