Medical product for the treatment of irritable bowel syndrome characterized by bloating, diarrhea, constipation, and abdominal pain, associated or not with changes in stool appearance and bowel irregularity. Thanks to its protective mechanical action, Kaleidon IBS physically interacts with the intestinal mucosa forming a muco-adhesive film that protects the mucosa from contact with irritating substances and at the same time helps to eliminate dangerous substances by counteracting their absorption.