Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1985-9-16
pubmed:abstractText
Fifty-five (55) depressed patients were treated with amitriptyline (AMI) or imipramine (IMI). Concentrations of AMI, IMI, and their metabolites, nortriptyline (NT) and desmethylimipramine (DMI), were measured in cerebrospinal fluid (CSF) and plasma at steady state by gas chromatography mass spectrometry (GC/MS). Highly significant correlations between CSF and plasma levels of AMI, NT, IMI, and DMI were found (r greater than 0.75; P less than 0.0001 in all cases). There were no significant sex, diagnostic subgroup, or geographic difference in any of the drug parameters measured. An evaluation of the relationship between CSF levels of drug variables and clinical response showed essentially no significant correlations between these various parameters. The results obtained do not support the concept of a 'therapeutic window' for levels of plasma NT in AMI-treated patients. Furthermore, the highly significant correlations between CSF and plasma compartments in terms of drug and metabolite levels would argue against the need to measure CSF levels of these parameters in clinical practice. Plasma level measurements should be equally informative, and simpler to obtain.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0165-0327
pubmed:author
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
69-78
pubmed:dateRevised
2009-9-28
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
Cerebrospinal fluid levels of amitriptyline, nortriptyline, imipramine and desmethylimipramine. Relationship to plasma levels and treatment outcome.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S.