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 capsules are a brand of esomeprazole that treats conditions that cause too much stomach acid. It can also relieve heartburn. Nexium is used to treat GERD and other conditions involving excessive stomach acid. Learn about side effects, interactions and indications. Nexium (Esomeprazole Magnesium) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Find patient medical information for Esomeprazole (Nexium) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings 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. Nexium, or esomeprazole, is a proton pump inhibitor. It is used to treat gastroesophageal reflux disease, duodenal ulcer disease, and erosive esophagitis. Stop acid reflux before it starts with Nexium 24HR. Treat frequent heartburn with a pill or tablet that provides you 24-hour relief from your symptoms. Learn about esomeprazole (Nexium) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. Esomeprazole (oral): side effects, dosage, interactions, FAQs, reviews. Used for: barrett's esophagus, duodenal ulcer prophylaxis, erosive esophagitis, gastric ulcer.