top of page
Oxycodone

羥考酮
Mechanism of action:
Oxycodone 是一種鴉片類藥物(opioid),屬於半合成嗎啡喃(semi-synthetic morphinan)衍生物。Oxycodone 能活化中樞神經系統的 μ-阿片受體(μ-opioid receptor),藉由 Gi/o 蛋白偶聯抑制腺苷酸環化酶(adenylyl cyclase),使 cAMP 下降,抑制突觸前的電壓門控鈣離子通道(voltage-gated Ca²⁺ channel),阻止鈣離子內流,減少麩胺酸(glutamate)、P 物質(substance P) 等疼痛相關神經傳導物質的釋放;同時,活化突觸後的鉀離子通道(K⁺ channel),促進鉀離子外流,導致神經元超極化(hyperpolarization)。
Reference(s):
1. DePriest AZ et al. (2015). Metabolism and Disposition of Prescription Opioids: A Review. Forensic Sci Rev.
2. Leow KP et al. (1993). Determination of the serum protein binding of oxycodone and morphine using ultrafiltration. Ther Drug Monit.
3. Ruan X et al. (2017). Revisiting Oxycodone Analgesia: A Review and Hypothesis. Anesthesiol Clin.
bottom of page
