Dopamine is the immediate precursor of epinephrine in the body.
Will cause a release of norepinephrine from its storage sites . These actions result in increased myocardial contraction, CO, and SV, as well as increased renal blood flow and sodium excretion. Exerts little effect on DBP and induces fewer arrhythmias than are seen with isoproterenol. Does not cross the blood-brain barrier. Metabolized in liver and excreted in urine.