[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][C][N][C][C][C@][C][C][C][C][C@H1][Ring1][=Branch1][C@H1][Ring1][#Branch2][C][C][=C][Ring1][#Branch2][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O]"}, {"from": "gpt", "value": "An opioid antagonist with properties similar to those of naloxone; in addition it also possesses some agonist properties. It should be used cautiously; levallorphan reverses severe opioid-induced respiratory depression but may exacerbate respiratory depression such as that induced by alcohol or other non-opioid central depressants. (From Martindale, The Extra Pharmacopoeia, 30th ed, p683)"}]