It is used for Gastroesophageal Reflux Disease (GERD): Pantoprazole is used to reduce the amount of acid produced in the stomach, which can help to relieve the symptoms of GERD, such as heartburn, indigestion, and regurgitation. It is also used for Stomach Ulcers: Pantoprazole can help to heal stomach ulcers caused by the bacteria Helicobacter pylori or long-term use of non-steroidal anti-inflammatory drugs (NSAIDs).