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Dexmethylphenidate

右哌甲酯
Mechanism of action:
Dexmethylphenidate 是一種中樞神經興奮劑(central nervous system stimulant),具有正腎上腺素-多巴胺回收抑制性(norepinephrine-dopamine reuptake inhibition),屬於哌啶羧酸類(piperidine carboxylate)衍生物,是派醋甲酯(methylphenidate)的 (R,R)-對映異構體,具右旋光性。Dexmethylphenidate 能抑制神經突觸前的正腎上腺素轉運體(norepinephrine transporter)與多巴胺轉運體(dopamine transporter)活性,阻止正腎上腺素和多巴胺回收進入突觸前神經元,而強化對突觸後神經元作用,進而增強注意力、專注力與衝動控制相關的中樞神經功能。
Reference(s):
1. Sun Z et al. (2004). Methylphenidate is stereoselectively hydrolyzed by human carboxylesterase CES1A1. J Pharmacol Exp Ther.
2. Liu F et al. (2006). Dexmethylphenidate hydrochloride in the treatment of attention deficit hyperactivity disorder. Neuropsychiatr Dis Treat.
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