Omeprazole (Oprex) 40mg Lyophilized Powder for Injection (I.V) is a proton pump inhibitor used to treat conditions like gastroesophageal reflux disease (GERD), peptic ulcers, and Zollinger-Ellison syndrome. The pack contains 10 vials, each with 40mg of Omeprazole powder, which is reconstituted with a diluent and administered intravenously. This formulation works by reducing stomach acid production, providing rapid relief from acid-related symptoms. It is typically used in hospital settings for patients who cannot take oral medications or require fast-acting acid suppression.