Lexiscan

Regadenoson hydrate (NSC 169186) is a selective A2A adenosine receptor agonist and vasodilator that increases coronary blood flow, can be used in study of myocardial perfusion imaging. Regadenoson hydrate also increases the permeability of the blood-brain barrier (BBB) in rodents, can be used to study increased delivery of agents to the human CNS[1][2].

[1] Trochu JN, et al. Selective A2A adenosine receptor agonist as a coronary vasodilator in conscious dogs: potential for use in myocardial perfusion imaging. J Cardiovasc Pharmacol. 2003 Jan;41(1):132-9. DOI:10.1097/00005344-200301000-00017
[2] Jackson S, et al. The effect of regadenoson-induced transient disruption of the blood-brain barrier on temozolomide delivery to normal rat brain. J Neurooncol. 2016 Feb;126(3):433-9. DOI:10.1007/s11060-015-1998-4