REALPAN-40 With WFI (Water for Injection) is an injectable form of the proton pump inhibitor (PPI), used for the treatment of severe acid-related disorders, such as peptic ulcers, gastroesophageal reflux disease (GERD), and Zollinger-Ellison syndrome, in hospitalized patients who cannot take oral medications. The injectable formulation allows for rapid and effective acid suppression, particularly in emergency situations or when patients are unable to swallow pills. It works by inhibiting the production of stomach acid, thereby reducing symptoms such as heartburn, acid reflux, and stomach discomfort. This formulation is typically administered by healthcare professionals in a clinical setting and is ideal for patients who need fast relief from severe acid-related conditions. As with other PPIs, long-term use should be monitored by healthcare providers due to potential side effects.