[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][C][C][N][=C][Branch1][C][N][N][=C][Branch1][C][N][N]"}, {"from": "gpt", "value": "The molecule is an agent belonging to the biguanide class of antidiabetics with antihyperglycemic activity. Buformin is not metabolized and is excreted in the urine. This agent has been withdrawn from the market due to its elevated risk of lactic acidosis."}]