Talk:Nociceptin receptor

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is there any EPSILON opioid receptor???61.0.72.144 18:22, 7 April 2007 (UTC)gurveen[reply]

buprenorphine is an antagonist of the δ-opioid receptor. Besides, buprenorphine is a very weak agonist of the nociceptin receptor, the inhibition constant Kᵢ is 77 nM. ^[1] CaffeineWitcher (talk) 08:35, 17 May 2020 (UTC)[reply]