Riapanta 40 mg is a prescription medication containing pantoprazole, a proton pump inhibitor (PPI). PPIs like pantoprazole work by blocking the proton pumps in the stomach lining, which are responsible for producing stomach acid. By reducing acid production, it helps manage conditions caused by excess stomach acid. Pantoprazole works by blocking the proton pump in the stomach lining, preventing the production of gastric acid. This helps in reducing symptoms like heartburn and pain caused by acid damage to the esophagus or stomach.