Nexium 40 mg gastro-resistant tablets - Patient Information Leaflet (PIL) by AstraZeneca UK Limited Nexium, or esomeprazole, is a proton pump inhibitor. It is used to treat gastroesophageal reflux disease, duodenal ulcer disease, and erosive esophagitis. Find patient medical information for Esomeprazole (Nexium) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings How does NEXIUM work? NEXIUM is a medicine called a proton pump inhibitor (PPI). NEXIUM works by causing less acid to be made in your stomach. Nexium is a proton pump inhibitor that decreases the amount of acid produced in the stomach. Nexium is used to treat symptoms of gastroesophageal reflux disease (GERD) and other conditions involving excessive stomach acid such as Zollinger-Ellison syndrome. Esomeprazole is used to treat conditions where there is too much acid in the stomach. It is used to treat duodenal and gastric ulcers, erosive esophagitis, gastroesophageal reflux disease (GERD), and Zollinger-Ellison syndrome, a condition wherein the stomach produces too much acid. Obat ini tergolong Obat Keras, sehingga penggunaan obat harus berdasarkan hasil konsultasi atau resep dokter. Nexium Mups adalah obat yang mengandung zat aktif Esomeprazole.