PARIET, also known by its generic name rabeprazole, is a medication belonging to the class of drugs known as proton pump inhibitors (PPIs). It is primarily used to treat and manage conditions related to excessive stomach acid, such as gastroesophageal reflux disease (GERD), Zollinger-Ellison syndrome, and peptic ulcers. PARIET works by inhibiting the activity of the proton pumps in the stomach lining, effectively reducing the production of stomach acid. This action helps to alleviate symptoms associated with acid-related disorders, including heartburn, stomach discomfort, and acid reflux. PARIET is typically administered in tablet form and is available by prescription. It is advised to use this medication under the guidance of a healthcare professional to ensure its safe and effective use.