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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1991-1-24
pubmed:abstractText
The pharmacokinetics of oxiracetam in patients with renal impairment were investigated after administration of a 800 mg single oral dose of oxiracetam. The renal insufficiency was estimated on the basis of the creatinine clearance (CLcr) which ranged from 9 to 95 ml/min among the 20 patients. In plasma, the terminal elimination half-life (T1/2) ranged from 10.6 to 68.1 h, the highest T1/2 corresponding to the patients with a high degree of renal impairment. In urine, the amounts of oxiracetam excreted during the 48 h postdosing represented 8.3 to 82.6% of the dose. They were lower in patients with a high degree of renal impairment. The correlations between the total clearance of oxiracetam, the renal clearance, the terminal apparent elimination rate constant in plasma, and CLcr were estimated by linear regression analysis. The correlation coefficients were 0.916, 0.985 and 0.803 respectively. The apparent volume of distribution of the central compartment V(1) and the total volume of distribution at the steady-state V(SS) were not dependent on the degree of renal impairment. The mean values +/- SD were 25.9 +/- 13.0 litres and 48.3 +/- 21.5 litres respectively. Oxiracetam concentrations in plasma of patients were estimated for repeated administration of 800 mg of oxiracetam.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0378-7966
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
231-7
pubmed:dateRevised
2011-2-2
pubmed:meshHeading
pubmed:articleTitle
Pharmacokinetics of oxiracetam in patients with renal impairment after a 800 mg single oral dose.
pubmed:affiliation
Biopharmaceutical Research Center and Medical Department, Laboratoires CIBA-GEIGY, Rueil-Malmaison, France.
pubmed:publicationType
Journal Article