Domzel 40 mg Injection works by irreversibly binding to the H⁺/K⁺-ATPase enzyme system (proton pump) in the stomach lining, leading to a significant reduction in gastric acid secretion. This effect aids in healing ulcers, managing GERD symptoms, and controlling acid hypersecretion in conditions like Zollinger-Ellison syndrome. . Please Note that product description, color, ingredients, package and other information maybe different from the original pack kindly check the product for more accurate details.