Iopromide is a molecule used as a contrast medium. It is marketed under the name Ultravist which is produced by Bayer Healthcare. It is a low osmolar, non-ionic contrast agent for intravascular use. Iopromide is a molecule used as a contrast medium. It is marketed under the name Ultravist which is produced by Bayer Healthcare. It is a low osmolar, non-ionic contrast agent for intravascular use. It is commonly used in radiographic studies such as intravenous urograms, brain computer tomography (CT) and CT pulmonary angiograms (CTPAs).