[{"from": "human", "value": "Provide a description of this molecule. [C][C][C][=Branch1][C][=O][O][C@][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C@H1][Branch1][C][C][C][N][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is an opioid analgesic manufactured by Eli Lilly and Company. It is used in the symptomatic treatment of mild pain. It displays antitussive and local anaesthetic actions. Due to the risk of cardiac arrhythmias and overdose, possibly leading to death, dextropropoxyphene has been withdrawn from the market in Europe and the United States. The drug is often referred to as the general form, \"propoxyphene\", however only the dextro-isomer (dextropropoxyphene) has any analgesic effect. The levo-isomer appears to exhibit a very limited antitussive effect."}]