Transit-Pellets device are intended to be used to assess colonic transit time in patients with chronic constipation, chronic diarrhoea or troublesome IBS. The markers represent the passage of solid and semi-solid contents. The markers are visible during X-ray due to the properties of Barium Sulphate, which is one of the ingredients in the device.
The most common reason to do this investigation is suspicion of so-called slow-transit constipation. However, with the new modification of marker intake on the sixth day, it is also possible to easily measure rapid passage, which could be of interest in the investigation of patients with chronic diarrhoea.