Omeprazole is widely used in the treatment of gastrointestinal conditions. It is primarily prescribed to manage acid-related disorders such as gastroesophageal reflux disease (GERD), where it helps alleviate symptoms like heartburn and acid regurgitation. It is also effective in treating peptic ulcers, including those caused by Helicobacter pylori infection when used in combination with antibiotics. Additionally, omeprazole is utilized in the management of Zollinger-Ellison syndrome, a rare condition characterized by excessive stomach acid production. Its ability to reduce gastric acid secretion makes it a key component in preventing and healing damage to the esophagus, stomach, and duodenum.