[{"from": "human", "value": "Provide a description of this molecule. [C][N][C][C][N][C][Branch1][Ring2][C][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C][=C][Ring1][N][N][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a tetracyclic antidepressant with a somewhat unique mechanism of action. Mirtazapine therapy can be associated with transient asymptomatic elevations in serum aminotransferase levels and has been linked to rare instances of clinically apparent acute liver injury."}]