[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C@H1][C@H1][C][C][=C][Branch2][Ring1][Ring1][C@@][Ring1][=Branch1][Branch1][=N][C][C][N][Ring1][Branch2][C][C][=C][Branch1][C][C][C][C][C][=C][Branch1][Branch1][C][=C][Ring1][S][O]"}, {"from": "gpt", "value": "The molecule is a synthetic opioid with both agonist and antagonist activity against opiate receptors which was previously used in oral and parenteral forms as an analgesic for moderate-to-severe pain. Currently, it is only available in tablet form in combination with either acetaminophen or naloxone. Pentazocine has not been linked to serum enzyme elevations during therapy or to clinically apparent liver injury."}]