[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch2][Ring1][C][C][C][C][C][Branch1][Ring2][C][Ring1][Branch1][C][Ring1][#Branch1][Branch1][C][C][N][C][C]"}, {"from": "gpt", "value": "The molecule is well absorbed from the gastrointestinal tract and crosses the blood-brain barrier. Mecamylamine has been used as a ganglionic blocker in treating hypertension, but, like most ganglionic blockers, is more often used now as a research tool."}]