Omeprazole [Inhibita] is a proton pump inhibitor (PPI) used to reduce stomach acid production and treat conditions like acid reflux, ulcers, and gastroesophageal reflux disease (GERD). It works by blocking the enzyme responsible for acid secretion in the stomach lining, providing relief from heartburn and allowing ulcers to heal. Omeprazole is typically taken before meals and should be used as directed by a healthcare professional to ensure effectiveness and safety.