[{"from": "human", "value": "Provide a description of this molecule. [C][C][C][Branch1][Ring2][C][Ring1][Ring2][C][N][C][C][C@][C@@H1][C@H1][Branch2][Ring1][S][C][C][C@][Ring1][=Branch1][Branch2][Ring1][#Branch1][C@H1][Ring1][#Branch2][C][C][=C][Ring1][#Branch2][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][Ring1][#C][O][O]"}, {"from": "gpt", "value": "The molecule is an Opioid Agonist/Antagonist. The mechanism of action of nalbuphine is as a Competitive Opioid Antagonist, and Partial Opioid Agonist."}]