[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][C][C][C][Branch1][Ring2][C][Ring1][=Branch1][Branch1][=C][C][C][Branch1][Ring2][C][Ring1][#Branch1][Branch1][Ring2][C][Ring1][#Branch2][N][C]"}, {"from": "gpt", "value": "The molecule is an oral N-methyl-D-aspartate glutamate receptor antagonist used in the therapy of Alzheimer disease and dementia. Memantine is associated with a minimal rate of serum enzyme elevations during therapy and has only rarely been implicated as a cause of clinically apparent acute liver injury."}]