(R)-()-Rabeprazole sodium is primarily used in the treatment of gastrointestinal conditions. It is a proton pump inhibitor (PPI) that effectively reduces stomach acid production, making it beneficial for managing acid-related disorders such as gastroesophageal reflux disease (GERD), peptic ulcers, and Zollinger-Ellison syndrome. It is also prescribed to heal and prevent damage to the esophagus caused by excessive acid exposure. Additionally, it is often used in combination with antibiotics to treat Helicobacter pylori infections, which are linked to stomach ulcers. Its targeted action provides relief from symptoms like heartburn, acid regurgitation, and stomach pain, improving overall digestive health.