PLASMA CODEINE AND MORPHINE CONCENTRATIONS AFTER A SINGLE ORAL DOSE OF CODEINE PHOSPHATE

被引：32

作者：

SHAH, JC ^{[1
]}

MASON, WD ^{[1
]}

机构：

[1] UNIV MISSOURI,DIV PHARMACEUT SCI,KANSAS CITY,MO 64110

来源：

JOURNAL OF CLINICAL PHARMACOLOGY | 1990年 / 30卷 / 08期

关键词：

D O I：

10.1002/j.1552-4604.1990.tb03641.x

中图分类号：

R9 [药学];

学科分类号：

1007 ;

摘要：

Plasma concentrations of codeine and its O‐demethylated metabolite morphine were determined, by a sensitive and specific high performance liquid chromatography (HPLC) method, following a single oral dose of 60 mg codeine phosphate. Ten healthy volunteers received a single dose of 60 mg codeine phosphate. The plasma concentrations were analyzed for codeine and morphine at the 0.5, 1, 3, and 6 hours postdosing. The mean peak codeine plasma concentrations and tmax (time to reach maximum plasma codeine concentrations) were 88.1 ng/mL and 1.2 hours. Mean maximum concentrations of metabolically produced morphine was 2.7 ± 0.6 ng/mL. The mean ratio of areas under the plasma concentration‐time curves for morphine and codeine was 0.027. Thus, free morphine represented only about 2.7 ± 1.8% of the free codeine area in each case. 1990 American College of Clinical Pharmacology

引用

页码：764 / 766

页数：3

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