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吗啡在健康志愿者中静脉注射、口服和颊部给药后的生物利用度和药代动力学。

The bioavailability and pharmacokinetics of morphine after intravenous, oral and buccal administration in healthy volunteers.

作者信息

Hoskin P J, Hanks G W, Aherne G W, Chapman D, Littleton P, Filshie J

机构信息

Continuing Care Unit, Royal Marsden Hospital, Sutton, Surrey.

出版信息

Br J Clin Pharmacol. 1989 Apr;27(4):499-505. doi: 10.1111/j.1365-2125.1989.tb05399.x.

Abstract
  1. The absolute bioavailability of morphine from oral aqueous solution, a controlled release oral tablet (MST-Continus) and a controlled release buccal tablet has been investigated in six healthy volunteers. 2. Analysis of plasma samples for morphine and its active metabolite morphine-6-glucuronide (M6G) was by means of a differential radioimmunoassay technique. Absolute bioavailability for morphine was estimated to be 23.9% after oral solution, 22.4% after MST-Continus and 18.7% after the buccal tablet. Maximum plasma morphine concentrations were seen at 45 min (oral solution), 2.5 h (MST) and 6 h (buccal). 3. There was no difference in the amount of M6G appearing in plasma after intravenous, oral or buccal administration but the mean ratio of AUCs for M6G: morphine in plasma after intravenous morphine was 2 : 1 compared with 11 : 1 after oral and buccal morphine.
摘要
  1. 在六名健康志愿者中研究了口服水溶液、控释口服片剂(美施康定)和控释颊含片吗啡的绝对生物利用度。2. 通过差分放射免疫分析技术分析血浆样本中的吗啡及其活性代谢物吗啡-6-葡萄糖醛酸苷(M6G)。吗啡的绝对生物利用度估计为:口服溶液后为23.9%,美施康定后为22.4%,颊含片后为18.7%。最大血浆吗啡浓度在45分钟(口服溶液)、2.5小时(美施康定)和6小时(颊含片)时出现。3. 静脉注射、口服或颊内给药后血浆中出现的M6G量没有差异,但静脉注射吗啡后血浆中M6G与吗啡的AUC平均比值为2:1,而口服和颊内给予吗啡后为11:1。

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本文引用的文献

1
Morphine kinetics in cancer patients.
Clin Pharmacol Ther. 1981 Nov;30(5):629-35. doi: 10.1038/clpt.1981.214.
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Age-related morphine kinetics.与年龄相关的吗啡动力学。
Clin Pharmacol Ther. 1983 Sep;34(3):364-8. doi: 10.1038/clpt.1983.180.
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Steady-state pharmacokinetics of controlled release oral morphine sulphate in healthy subjects.
Clin Pharmacokinet. 1986 Nov-Dec;11(6):505-10. doi: 10.2165/00003088-198611060-00006.
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Analysis of morphine and its major metabolites by differential radioimmunoassay.
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