<unk>  is a diagnostic agent that is FDA approved for the procedure of MRI of the central nervous system and MRA of renal and aorto-ilio-femoral fessels. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include nausea, headache, fever, vomiting, abdominal pain, diarrhea, hypersensitivity, myalgia, chills malaise and dry mouth.
Gadobenate Dimeglumine
Thiodicarb
Chloral hydrate
Ammonium chloride
Amobarbital sodium
Secobarbital sodium
Aluminium acetotartrate
Fomepizole