Al., 2007). Related to other long-acting k-opioid antagonists, which include 59-guanidinonaltrindole (GNTIAl., 2007). Equivalent to other long-acting k-opioid antagonists, such as 59-guanidinonaltrindole (GNTI) and (3R)-7-hydroxy-N--3methylbutan-2-yl]-1,two,three,4-tetrahydroisoquinoline-3-carboxamide (JDTic), nor-BNI includes a very…