Learn about the potential side effects of Nexium (esomeprazole). Includes common and rare side effects information for consumers and healthcare professionals. Lipitor can cause serious side effects. Stop taking the drug and call your doctor right away if you have any of these serious side effects: Unexplained muscle pain, tenderness, or weakness Information on the drug esomeprazole (Nexium, Nexium 24HR, Nexium IV) an over-the-counter and prescription drug used to treat gastroesophageal reflux disease (GERD), in combination with antibiotics to treat H. pylori infection, Zollinger-Ellison syndrome treatment, and reducing the risk of gastric ulcers. Side effects, drug interactions, and. Severe side effects from drugs can range from infections to death. If a drug has numerous reports of a particular problem, the U.S. Food and Drug Administration can add warnings to the drug’s label, including its stringent black box warning. Nexium is used to treat GERD and other conditions involving excessive stomach acid. Learn about side effects, interactions and indications. Learn about Nexium (Esomeprazole Magnesium) may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling, reviews, and related medications. SSRIs work by altering serotonin levels in the brain. There are several types with various uses, side effects and risk levels when taken during pregnancy. Nexium is the brand name for esomeprazole, a drug used to treat certain stomach and esophagus problems. Nexium is approved for the treatment of gastroesophageal reflux disease (GERD), and in. Nexium (esomeprazole magnesium) is a proton pump inhibitor (PPI) that blocks acid production in the stomach and is used to treat stomach and duodenal ulcers, gastroesophageal reflux disease , and Zollinger-Ellison syndrome. Proton pump inhibitors (PPIs) are a class of drugs used to treat GERD, peptic ulcers, and h pylori. Examples of PPIs include Prilosec, Prevacid, Aciphex, Protonix, Nexium, and Zegarid. Common side effects are headache, diarrhea, constipation, vomiting, intestinal gas, fever, nausea, and rash.