Learn about the side effects of pantoprazole, from common to rare, for consumers and healthcare professionals. Find patient medical information for Pantoprazole (Protonix) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Pantoprazole (Protonix) is a medication that treats conditions that cause too much stomach acid, like heartburn, stomach ulcers and reflux disease. Pantoprazole is a proton pump inhibitor used to treat GERD, erosive esophagitis, and Zollinger-Ellison syndrome by reducing stomach acid production. Pantoprazole is used to treat certain stomach and esophagus problems such as acid reflux. Learn about side effects, drug interactions, dosages, warnings, and more. Pantoprazole, sold under the brand name Protonix, among others, is a medication used for the treatment of stomach ulcers, short-term treatment of erosive esophagitis due to gastroesophageal reflux disease (GERD), maintenance of healing of erosive esophagitis, and pathological hypersecretory conditions including Zollinger–Ellison syndrome. [7. Pantoprazole sodium delayed-release tablets are a prescription medicine called a proton pump inhibitor (PPI). Pantoprazole sodium delayed-release tablets reduce the amount of acid in your stomach. Pantoprazole oral tablet is used to reduce excess acid caused by conditions such as GERD. Learn about side effects, warnings, dosage, and more. Pantoprazole comes as a delayed-release (releases the medication in the intestine to prevent break-down of the medication by stomach acids) tablet and as delayed-release granules to take by mouth. The packets of delayed-release granules must be mixed with applesauce or apple juice and taken by mouth or given through a feeding tube. Description Pantoprazole is used to treat certain conditions in which there is too much acid in the stomach. It is used to treat erosive esophagitis or heartburn caused by gastroesophageal reflux disease (GERD), a condition where the acid in the stomach washes back up into the esophagus. This medicine may also be used to treat Zollinger-Ellison syndrome, a condition where the stomach.