Rabesec LS Capsule is a prescription medication used to treat intestinal ulcers, irritable bowel syndrome, and gastroesophageal reflux disease (acid reflux). The inner lining of the stomach or gut (intestine) can grow into painful sores called intestinal ulcers. By lowering the amount of acid your stomach produces, Rabesec LS Capsule helps the ulcer heal naturally and avoid additional damage. Other medications may be prescribed in addition to this one, depending on the etiology of the ulcer. For Rabesec LS Capsule to work, you must continue taking it as directed by your physician, even if the symptoms appear to go away.