Also available in 1 mL, 50 mg, 100 mg, 200 mg and bulk. Please contact Fisher for quotes. Pantoprazole Sodium Hydrate (BY1023 (sodium hydrate)) is a proton pump inhibitor drug, used for short-term treatment of erosion and ulceration of the esophagus caused by gastroesophageal reflux disease. Purity 98.32%