<unk>  is a Diagnostic Agent that is FDA approved for the diagnosis of areas with disruption of the Blood brain barrier (BBB) and/or abnormal vascularity in brain (intracranial), spine and associated tissues with magnetic resonance imaging (MRI). There is a Black Box Warning for this drug as shown here.  Common adverse reactions include nausea, headache, injection site pain, injection site coldness, and burning sensation.
Gadoterate
Undecylenic acid
Succimer
Cariprazine
Bithionol
Cevimeline
Indigotindisulfonate
Chenodiol