Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1985-1-14
pubmed:abstractText
We examined the influence of age on vancomycin kinetics in 12 normal healthy men (six young and six elderly) after an intravenous infusion of 6 mg/kg. Serial blood and urine samples were collected for up to 2 days after dosing and were assayed for unchanged drug by a specific radioimmunoassay. Serum concentrations of vancomycin after infusion declined in a multiphasic manner. Both serum and urinary excretion data were simultaneously fit by a three-compartment model with SAAM-27 computer programs. Estimates of mean t1/2 obtained from the terminal phase of the drug disposition profile showed the t1/2 to be longer in the elderly than in the young subjects (12.1 and 7.2 hr). Although there was no change in the initial distribution volume of the central compartment, total systemic and renal clearances were reduced in the elderly and did not correlate with renal function. The increase in the vancomycin volume of distribution at steady state was ascribed to enhanced tissue binding of drug in the elderly, since the mean fraction of vancomycin bound in systemic pool of the young and elderly did not differ (0.53 and 0.56). In-depth analysis of excretion data tends to support suggestions of vancomycin excretion solely by glomerular filtration. Our data strongly suggest the need for adjustment or modification of recommended vancomycin dosing schedules in the elderly.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0009-9236
pubmed:author
pubmed:issnType
Print
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
803-10
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Vancomycin disposition: the importance of age.
pubmed:publicationType
Journal Article