[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][#Branch2][C][N+1][Branch1][C][C][Branch1][C][C][C][O][C][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is a Cholinergic Receptor Agonist. The mechanism of action of methacholine is as a Cholinergic Agonist."}]