[{"from": "human", "value": "Describe this molecule. [C][C][C][N][C][C][Branch2][Ring1][=Branch2][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][O]"}, {"from": "gpt", "value": "The molecule is an oral antiarrhythmic agent that has been in wide use for several decades. Long term propafenone therapy is associated with a low rate of serum aminotransferase elevations and therapy rarely can cause a self-limited, acute cholestatic liver injury."}]