[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][=C][Branch1][#Branch2][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][C][N][C][=Branch1][C][=O][C][C][C][C][C][N][Ring1][=Branch1][C]"}, {"from": "gpt", "value": "The molecule is an amide-type local anesthetic agent.  At the injection site, mepivacaine binds to specific voltage-gated sodium ion channels in neuronal cell membranes, which inhibits both sodium influx and membrane depolarization. This leads to a blockage of nerve impulse initiation and conduction and results in a reversible loss of sensation. Compared to other local anesthetics, this agent has a more rapid onset and moderate duration of action."}]