All are opioid agonist - antagonist compounds except – a) Buprenorphineb) Nalbuphinec) Pentazocined) Nalmefenee) Papaverine
Agonist antagonist opioids Pentazocine, Nalbuphine, Nalorphine, Butorphanol, Levallorphan, Dezocine, Meptazinol, Buprenorphine.
ab
bc
cd
de