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Cisapride

西沙必利
Mechanism of action:
Cisapride 是一種胃腸道促動劑(prokinetic agent),屬於 5-HT₄ 受體促效劑(5-hydroxytryptamine type 4 receptor agonist),可引起上消化道蠕動。在腸神經系統(enteric nervous system)中,cisapride 作用於神經元的 5-HT₄ 受體,刺激後促使神經末梢釋放乙醯膽鹼(acetylcholine),增強乙醯膽鹼對平滑肌的刺激,使下食道括約肌張力上升,引起胃、十二指腸與結腸蠕動。
Reference(s):
Pearce RE et al. (2001). Cytochrome P450 involvement in the biotransformation of cisapride and racemic norcisapride in vitro: differential activity of individual human CYP3A isoforms. Drug Metab Dispos.
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