[{"from": "human", "value": "Could you provide a description of this molecule? [Li+1].[Li+1].[C][=Branch1][C][=O][Branch1][C][O-1][O-1]"}, {"from": "gpt", "value": "The molecule has been used to treat manic episodes since the 19th century. Though it is widely used, its mechanism of action is still unknown. Lithium carbonate has a narrow therapeutic range and so careful monitoring is required to avoid adverse effects."}]