[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][=N][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=S][N]"}, {"from": "gpt", "value": "The molecule is a second line drug in the therapy of tuberculosis used only in combination with other agents and for drug-resistant tuberculosis. Ethionamide has been linked to transient, asymptomatic elevations in serum aminotransferase levels and in uncommon instances of acute liver injury, which can be severe."}]