[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=C][Branch2][Ring2][#Branch1][C][Branch2][Ring1][=Branch1][C][=Branch1][Branch2][=C][Branch1][Ring2][N][Ring1][=Branch1][C][C][=Branch1][C][=O][O][C][C][Branch1][C][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O][C]"}, {"from": "gpt", "value": "The molecule is a Dihydropyridine Calcium Channel Blocker. The mechanism of action of nisoldipine is as a Calcium Channel Antagonist. The physiologic effect of nisoldipine is by means of Decreased Blood Pressure."}]