Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2007-9-27
pubmed:abstractText
Antiretroviral drug measurements as part of therapeutic drug monitoring are performed in several human immunodeficiency virus (HIV) clinics in developed as well as developing countries. Heparin is routinely used as an anticoagulant for plasma drug estimations. EDTA plasma for drug estimations, if found suitable, would have several practical advantages. In this study, plasma nevirapine (NVP) and efavirenz (EFV) levels were compared in paired blood collected in heparin and EDTA Vacutainer tubes (Greiner Bio-one, Austria). The study involved HIV-infected individuals who were receiving antiretroviral treatment at the Government Hospital of Thoracic Medicine, Tambaram, Chennai, India. Their treatment consisted of administration of NVP or EFV, along with lamivudine and stavudine/zidovudine. Blood was collected at the same time in heparin and EDTA Vacutainer tubes. Plasma concentrations of NVP and EFV were estimated, according to validated methods, by high-performance liquid chromatography (HPLC). The mean NVP concentrations in heparin and EDTA plasma were 8.79 and 8.59 microg/mL, respectively. This difference was not statistically significant (P = 0.203). In the case of EFV, the corresponding values were 3.03 and 2.78 microg/mL, respectively; the difference was significant (P < 0.05). However, the percent variation in EFV between both types of plasma was <10%. Blood collected in heparin or EDTA Vacutainer tubes could be used for plasma NVP determination.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0163-4356
pubmed:author
pubmed:issnType
Print
pubmed:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
652-4
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Effect of anticoagulants on plasma nevirapine and efavirenz concentrations.
pubmed:affiliation
HIV/AIDS Division, Tuberculosis Research Centre (Indian Council of Medical Research), Tambaram, Chennai, India.
pubmed:publicationType
Journal Article, Comparative Study, Evaluation Studies