norcodeine

A fast and reliable method using solid-phase extraction and ultra-performance liquid chromatography-tandem mass spectrometry… (More)

OBJECTIVE Our objective was to investigate whether codeine or one of its metabolites contributes substantially to central nervous… (More)

A frameshift mutation 138delT generates an open reading frame in the pseudogene, cytochrome P4502D7 (CYP2D7), and an alternate… (More)

BACKGROUND The ease, noninvasiveness, and safety of oral fluid collection have increased the use of this alternative matrix for… (More)

The universally accepted 300 ng/ml cut-off limit for opiate assays stated to be mandatory for all drug screening laboratories by… (More)

Codeine (30 mg phosphate) was metabolized by eight human volunteers to the following six metabolites: codeine-6-glucuronide 81.0… (More)

1. The kinetics of codeine and seven of its metabolites codeine-6-glucuronide (C6G), norcodeine (NC), NC-glucuronide (NCG… (More)

1. The pharmacokinetics, metabolism and partial clearances of codeine to morphine, norcodeine and codeine-6-glucuronide after… (More)

A simple quantitative method for determining codeine, norcodeine, and morphine in urine by high-performance liquid chromatography… (More)

A gas-chromatographic method is described for determination of codeine and norcodeine in human plasma. The method is specific… (More)