[{"from": "human", "value": "Provide a brief overview of this molecule. [C][N][C][C][C@@][C][C][C][C][C@@H1][Ring1][=Branch1][C@@H1][Ring1][#Branch2][C][C][=C][Ring1][#Branch2][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C]"}, {"from": "gpt", "value": "The molecule is an Uncompetitive N-methyl-D-aspartate Receptor Antagonist and Sigma-1 Agonist. The mechanism of action of dextromethorphan is as an Uncompetitive NMDA Receptor Antagonist and Sigma-1 Receptor Agonist."}]