Rabekind 20 Tablet belongs to a group of antiulcer medicines called proton pump inhibitors used to treat duodenal ulcers, gastro-oesophageal reflux disease (reflux of gastric contents into the oesophagus), heartburn, erosive oesophagitis (acid-related damage to the lining of the oesophagus), infections caused by Helicobacter pylori when given along with an antibiotic, and Zollinger-Ellison syndrome.