<unk> , sold under the trade name Omnipaque among others, is a contrast agent used for X-ray imaging. This includes when visualizing arteries, veins, ventricles of the brain, the urinary system, and joints, as well as during computed tomography (CT scan). It is given by mouth, injection into a vein, or into a body cavity. Side effects include vomiting, skin flushing, headache, itchiness, kidney problems, and low blood pressure. Less commonly allergic reactions or seizures may occur. Allergies to povidone-iodine or shellfish do not affect the risk of side effects more than other allergies. Use in the later part of pregnancy may cause hypothyroidism in the baby.<unk>  is an iodinated non-ionic radiocontrast agent. It is in the low osmolar family.<unk>  was approved for medical use in 1985. It is on the World Health Organization's List of Essential Medicines.
Iohexol
Iofetamine 
Gadodiamide
Methohexital
Flonicamid
Indapamide
Doxylamine
Adenosine