[{"from": "human", "value": "Describe this molecule. [C][=C][N][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][N]"}, {"from": "gpt", "value": "The molecule is the most reliable and most commonly used medication for tuberculosis. Isoniazid therapy is often associated with minor, transient and asymptomatic elevations in serum aminotransferase levels but, more importantly, isoniazid is a well known cause of acute clinically apparent liver injury which can be severe and is sometimes fatal."}]