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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
5
|
| pubmed:dateCreated |
1978-6-17
|
| pubmed:abstractText |
The bioavailability of a drug administered extrasystemically is a measure of the initial extraction of a compound by a series of eliminating events involving the intestinal mucosal enzymes, the gut bacterial microflora, the liver, and the lung. A theoretical analysis is presented to differentiate the process of gut wall elimination and hepatic removal of a drug during this first-pass effect. The area under the blood concentration--time curve (AUC) for a drug and its metabolite is shown to be useful in determining the presence of these processes when a drug and its metabolite are administered concomitantly by different routes of administration. Furthermore, the fraction of a precursor transformed to its metabolite also can be determined by pharmacokinetic analysis of the AUC of a drug and its metabolite after administration of both substances.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:month |
May
|
| pubmed:issn |
0022-3549
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
67
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
703-4
|
| pubmed:dateRevised |
2000-12-18
|
| pubmed:meshHeading | |
| pubmed:year |
1978
|
| pubmed:articleTitle |
Theoretical relationships between area under the curve and route of administration of drugs and their precursors for evaluating sites and pathways of metabolism.
|
| pubmed:publicationType |
Journal Article
|