[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][N][Branch1][Ring1][C][C][C][C][N][C][=Branch1][C][=O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N]"}, {"from": "gpt", "value": "The molecule is an oral antiarrhythmic agent that has been in use for more than 60 years. Long term procainamide therapy is known to induce hypersensitivity reactions, autoantibody formation and a lupus-like syndrome but is a rare cause of clinically apparent acute liver injury."}]