<unk>  is a diagnostic agent that is FDA approved for the diagnosis of myocardial infarction, ischemic heart disease, parathyroid hyperactivity.   Common adverse reactions include anaphylactoid reactions, itching, nausea/vomiting, diarrhea, tremor, shortness of breath, conjunctivitis.
Thallous Chloride Tl 201
Gallium Citrate Ga 67
Technetium 
Gallium
Pyrogallol
Lutetium lu 177 dotatate
Echothiophate Iodide
Calcium lactate