<unk>  (INN/USAN, or perfluorooctyl bromide; brand name Imagent) is a contrast medium for magnetic resonance imaging, computer tomography and sonography.It was approved for this use in the United States by the Food and Drug Administration in 1993.
Perflubron
Trioxsalen
Isothipendyl
Bithionol
Undecylenic acid
Dicresyl
Naloxegol
Charcoal