Peptral contains Omeprazole 20 mg, a proton pump inhibitor (PPI) that reduces stomach acid production. It is used to treat acid-related stomach and esophagus problems such as gastroesophageal reflux disease (GERD), ulcers, and Zollinger-Ellison syndrome. The enteric coating protects the capsule from stomach acid, ensuring the medicine is released in the intestines for better absorption and effectiveness.