Canna~Fangled Abstracts Novel orally available salvinorin A analog PR-38 protects against experimental colitis and reduces abdominal pain in mice by interaction with opioid and cannabinoid receptors. 2014 Oct 6. pii: S0006-2952(14)00562-0. doi: 10.1016/j.bcp.2014.09.018. Novel orally available salvinorin A analog PR-38 protects…Freedom WaresOctober 6, 2014