This drug can be used in adults as well as younger adults to treat several ulcer problems such as gastric and duodenal ulcers. It could also be used where to get generic nexium without insurance treat a condition called symptomatic gastroesophageal reflux disease (GERD). You may not tolerate Nexium if you’ve got any of the eye-related health problems such as glaucoma, diabetes or macular edema. Patients taking this medication ought to avoid grapefruit intake.