[{"from": "human", "value": "Describe this molecule. [C][C][C][Ring1][Ring1][C][N][C][C][C@][C@@H1][C][=Branch1][C][=O][C][C][C@][Ring1][#Branch1][Branch2][Ring1][#Branch1][C@H1][Ring1][O][C][C][=C][Ring1][O][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][Ring1][S][O]"}, {"from": "gpt", "value": "The molecule is a synthetic opioid antagonist used in prevention of relapse of opiate addiction and alcoholism. Naltrexone has been associated with low rates of serum enzyme elevations during therapy and with rare instances of clinically apparent liver injury."}]