[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][C][N][Branch1][C][C][C]"}, {"from": "gpt", "value": "A muscarinic antagonist used to treat drug-induced parkinsonism and to relieve pain from muscle spasm."}]