Colpermin Capsules Pack of 100 Colpermin Capsules Pack of 100 Colpermin IBS Relief Capsules contain peppermint oil and are designed to help relieve the symptoms of Irritable Bowel Syndrome (IBS), including abdominal discomfort, bloating and bowel spasms. Each gastro-resistant, sustained-release capsule contains 0.2 ml of peppermint oil and is specially coated so that the peppermint oil is released in the bowel rather than the stomach. This pack contains 100 capsules.