Document Detail


Pharmacokinetics of valaciclovir.
MedLine Citation:
PMID:  15140857     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
While active against Herpesviridae, oral aciclovir is limited by low and inconsistent bioavailability. Modification of aciclovir by valine esterification, producing valaciclovir, results in significant increases in systemic aciclovir plasma levels. The exact mechanism of increased absorption with valaciclovir is not fully determined but probably involves intestinal dipeptide transporters, followed by rapid ester hydrolysis in the small intestine and liver. The enhanced pharmacokinetics of valaciclovir have translated into improvements in clinical efficacy and patient convenience.
Authors:
Conan MacDougall; B Joseph Guglielmo
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Publication Detail:
Type:  Journal Article; Review     Date:  2004-05-12
Journal Detail:
Title:  The Journal of antimicrobial chemotherapy     Volume:  53     ISSN:  0305-7453     ISO Abbreviation:  J. Antimicrob. Chemother.     Publication Date:  2004 Jun 
Date Detail:
Created Date:  2004-05-28     Completed Date:  2004-08-20     Revised Date:  2005-11-16    
Medline Journal Info:
Nlm Unique ID:  7513617     Medline TA:  J Antimicrob Chemother     Country:  England    
Other Details:
Languages:  eng     Pagination:  899-901     Citation Subset:  IM    
Affiliation:
Department of Clinical Pharmacy, School of Pharmacy, University of California, San Francisco, CA, USA.
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MeSH Terms
Descriptor/Qualifier:
Acyclovir / analogs & derivatives*,  pharmacokinetics*
Animals
Antiviral Agents / pharmacokinetics*
Biotransformation
Carrier Proteins / metabolism
Humans
Hydrolysis
Symporters*
Valine / analogs & derivatives*,  pharmacokinetics*
Chemical
Reg. No./Substance:
0/Antiviral Agents; 0/Carrier Proteins; 0/PepT1 protein; 0/SLC15A1 protein, human; 0/Symporters; 124832-27-5/valacyclovir; 59277-89-3/Acyclovir; 7004-03-7/Valine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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