[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][C][C][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][N]"}, {"from": "gpt", "value": "The molecule is a natural monoamine alkaloid derivative and a sympathomimetic stimulant with appetite suppressant property. Phentermine, which was part of the Fen-Phen anti-obesity medication, stimulates hypothalamic release of norepinephrine, a neurotransmitter involved in stress responses (fight-or-flight reactions), and reduces hunger sensation. Phentermine also causes the release of epinephrine or adrenaline outside of the brain, resulting in breakdown of stored fat."}]