Rabemek-LSR Capsule is a prescription medicine which is used in the treatment of gastroesophageal reflux disease (acid reflux), intestinal ulcers, and irritable bowel syndrome. The inner lining of the stomach or gut (intestine) can grow into painful sores called intestinal ulcers. Rabemek-LSR Capsule reduces the amount of acid your stomach makes which prevents further damage to the ulcer as it heals naturally. Other medications may be prescribed in addition to this one, depending on the etiology of the ulcer. You need to keep taking Rabemoon-LSR Capsule as prescribed by the doctor for it to be effective, even if the symptoms seem to disappear.