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Primidone

撲米酮
Mechanism of action:
Primidone 是一種去氧巴比妥類(deoxybarbiturate)衍生物。Primidone 於肝臟代謝生成phenobarbital(主要的藥理作用)和 PEMA(phenylethylmalonamide)。Phenobarbital 能與 GABA_A 受體複合體的巴比妥類結合位點結合,延長氯離子通道的開放時間,增加 Cl⁻ 內流,使神經元超極化(hyperpolarization),可減緩神經興奮性,有鎮靜、放鬆,並影響與緊張性頭痛相關的中樞神經調節。
Reference(s):
1. Rajput AH et al. (2014). Medical treatment of essential tremor. J Cent Nerv Syst Dis.
2. Schneider SA et al. (2014). The treatment of tremor. Neurotherapeutics.
3. Haidukewych D et al. (1981). Serial free and plasma valproic acid and phenytoin monitoring and drug interactions. Ther Drug Monit.
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