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Metocurine

甲庫林
Mechanism of action:
Metocurine 是一種非去極化型神經肌肉阻斷劑(non-depolarizing neuromuscular blocking agent),屬於雙季銨類(bis-quaternary ammonium)衍生物。Metocurine 會與運動終板(motor end-plate)上的菸鹼型乙醯膽鹼受體(nicotinic acetylcholine receptor)結合,與乙醯膽鹼(acetylcholine)形成競爭性拮抗。當 metocurine 佔據受體後,乙醯膽鹼無法引發鈉離子內流,神經肌肉的運動終板無法產生去極化電位,因而阻斷肌肉動作電位的產生。
Reference(s):
Spacek A et al. (1999). Rocuronium-induced neuromuscular block is affected by chronic carbamazepine therapy. Anesthesiology.
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