[CAS NO. 313348-27-5]  Regadenoson

In a dog model, intravenous bolus injection of regadenoson causes a dose-dependent increase in myocardial blood flow and a dose-dependant decrease in coronary vascular resistance. In a rat heart model, regadenoson was shown to have a dose-dependent increase in heart rate and a decrease in mean arterial pressure at the higher doses. Regadenoson also caused more than a 2-fold increase in serum norepinephrine and epinephrine. For clinical data, Regadenoson has a volume of distribution of 11.5 L and 78.7 L (at steady-state), and an estimated clearance of 37.8 L/h. It is renally excreted (58% of total elimination) with a terminal half-life of 33 to 108 min.