Pan 40 is a widely prescribed medication that contains Pantoprazole 40 mg, a powerful proton pump inhibitor (PPI) used to treat acid-related stomach issues. It works by reducing the production of stomach acid, providing effective relief from conditions such as acid reflux, heartburn, GERD (gastroesophageal reflux disease), and gastric ulcers. Taken once daily, usually before meals, Pan 40 helps promote healing of the esophagus and prevents irritation caused by excess acid.