Nexum MUPS 40 mg Tablet contains Esomeprazole Magnesium Trihydrate, a proton pump inhibitor (PPI) that effectively reduces the amount of acid produced in the stomach. It is commonly prescribed for the treatment of gastroesophageal reflux disease (GERD), erosive esophagitis, peptic ulcers, and for the prevention of gastric damage caused by prolonged use of NSAIDs (non-steroidal anti-inflammatory drugs). Nexum MUPS 40 mg is also used as part of combination therapy to eradicate Helicobacter pylori infections and in managing conditions like Zollinger-Ellison syndrome, which involve excessive acid secretion. The tablet is formulated as a Multiple Unit Pellet System (MUPS)