Pharmacology and anti-addiction effects of the novel κ opioid receptor agonist Mesyl Sal B, a potent and long-acting analogue of salvinorin A. - Simonson, B; Morani, A S; Ewald, A W M; Walker, L; Kumar, N; Simpson, D; Miller, J H; Prisinzano, T E; Kivell, B M (British Journal of Pharmacology, 2015)