Rablet IT Capsule is used to lower the increased level of stomach acid. It treats GERD (gastro-oesophagal reflux disease), and peptic ulcers. Gastroesophageal reflux disease (GERD) occurs when stomach acid frequently flows back into the food pipe (oesophagus). Peptic ulcers are sores that develop on the inner lining of the intestine and stomach.