ICI-204,448 is a drug which acts as a potent and peripherally selective κ-opioidagonist, with possible uses in the treatment of heart attack as well as anti-itching effects.[1][2] It is used in research to distinguish centrally from peripherally mediated kappa opioid receptor effects.[3][4]
^Shannon HE, Eberle EL, Mitch CH, McKinzie DL, Statnick MA (December 2007). "Effects of kappa opioid receptor agonists on attention as assessed by a 5-choice serial reaction time task in rats". Neuropharmacology. 53 (8): 930–41. doi:10.1016/j.neuropharm.2007.09.002. PMID17959202. S2CID38651220.