<unk>  is a Adrenergic receptor agonist that is FDA approved for the treatment of hemodynamic imbalances present in the shock syndrome due to myocardial infarctions, trauma, endotoxic septicemia, open heart surgery, renal failure, and chronic cardiac decompensation as in congestive heart failure. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include chest pain, hypertension, palpitations, tachyarrhythmia, injection site reaction, piloerection, nausea, vomiting, headache, mydriasis, anxiety, oliguria, dyspnea.
Dopamine hydrochloride
Ibopamine
Methylergonovine 
Gadoteridol
Sodium tartrate
Heptaminol
Chlorbenzoxamine
Phenyltoloxamine