Nexium, or esomeprazole, is a proton pump inhibitor. It is used to treat gastroesophageal reflux disease, duodenal ulcer disease, and erosive esophagitis. Nexium capsules are a brand of esomeprazole that treats conditions that cause too much stomach acid. It can also relieve heartburn. Esomeprazole, sold under the brand name Nexium (or Neksium) among others, [2] is a medication which reduces stomach acid. [11] It is used to treat gastroesophageal reflux disease, peptic ulcer disease, and Zollinger–Ellison syndrome. [11][12] Its effectiveness is similar to that of other proton pump inhibitors (PPIs). [13] It is taken by mouth or injection into a vein. [11] Common side. Nexium is an acid-suppressing agent used to treat conditions associated with excessive stomach acid production, such as gastroesophageal reflux (GERD) and stomach ulcers. Nexium is available orally as capsules, tablets, and granules and as an IV preparation that may be used in adults and children 1 month and older as an alternative to oral therapy. Description 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. Esomeprazole is also used with antibiotics (eg, amoxicillin, clarithromycin) to treat ulcers that. Esomeprazole (Nexium) is a proton pump inhibitor (PPI). It lowers the amount of acid in your stomach by blocking the final step of stomach acid production. This helps relieve heartburn and other stomach problems. Nexium (Esomeprazole Magnesium) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Nexium is used to treat GERD and other conditions involving excessive stomach acid. Learn about side effects, interactions and indications. Find patient medical information for Esomeprazole (Nexium) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings NEXIUM delayed-release capsules and NEXIUM for delayed-release oral suspension are indicated for the long-term treatment of pathological hypersecretory conditions, including Zollinger-Ellison Syndrome, in adults.