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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1976-12-23
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pubmed:abstractText |
Following administration of chlordiazepoxide HCl to man, N-desmethyldiazepam, a known metabolite of diazepam (Valium), was identified in plasma. The metabolite was identified on the basis of its thin-layer chromatographic (TLC) mobility, electron-capture gas-chromatographic (EC-GC) retention time, and mass spectrum relative to authentic N-desmethyldiazepam. Plasma levels of N-desmethyldiazepam in subjects receiving both single and chronic doses of chlordiazepoxide were determined by an EC-GC method with a limit of sensitivity of 10 ng/ml using 2-ml samples and by a radioimmunoassay procedure which had a limit of sensitivity of 20 ng/ml using a 0.1-ml sample. Both assay methods gave good agreement for the levels of N-desmethyldiazepam. In subjects receiving a single 30-mg oral or intravenous dose of chlordiazepoxide, measurable levels of N-desmethyldiazepam in plasma (10 to 60 ng/ml) were obtained 24 to 72 hr after administration. In 5 subjects receiving 10 mg of chlordiazepoxide three times a day, steady-state levels of N-desmethyldiazepam in plasma were reached after about 1 wk of administration. The mean maximum and minimum steady-state levels of N-desmethyldiazepam were 260 and 220 ng/ml of plasma, respectively. Similar steady-state levels were observed on treatment with 30 mg of chlordiazepoxide over 24 hr.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0009-9236
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
20
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
450-7
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:788991-Animals,
pubmed-meshheading:788991-Chlordiazepoxide,
pubmed-meshheading:788991-Chromatography, Gas,
pubmed-meshheading:788991-Diazepam,
pubmed-meshheading:788991-Humans,
pubmed-meshheading:788991-Nordazepam,
pubmed-meshheading:788991-Rabbits,
pubmed-meshheading:788991-Radioimmunoassay,
pubmed-meshheading:788991-Time Factors
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pubmed:year |
1976
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pubmed:articleTitle |
N-desmethyldiazepam: a new metabolite of chlordiazepoxide in man.
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pubmed:publicationType |
Journal Article
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