Impact of dosing schedule upon suppression of a retrovirus in a murine model of AIDS encephalopathy

Antimicrob Agents Chemother. 1994 Mar;38(3):628-31. doi: 10.1128/AAC.38.3.628.

Abstract

We studied the impact of zidovudine (AZT) in Cas-Br-M murine leukemia virus-infected NFS-N mice after administration by once-daily bolus or continuous infusion. While higher peak concentrations of AZT were achieved by once-daily dosing, continuous AZT infusion at 25 micrograms/h maintained levels > 1 microM in plasma and > 0.2 microM in the brain. Continuous infusion provided significantly better viral inhibition, even though total doses were only one-third that of the once-daily therapy group.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • AIDS Dementia Complex / drug therapy*
  • AIDS Dementia Complex / microbiology
  • Animals
  • Brain / metabolism
  • Chromatography, High Pressure Liquid
  • Electrophoresis, Polyacrylamide Gel
  • Female
  • Half-Life
  • Immunoblotting
  • Mice
  • Mice, Inbred Strains
  • Pregnancy
  • Retroviridae Infections / drug therapy*
  • Retroviridae Infections / microbiology
  • Retroviridae*
  • Spleen / microbiology
  • Zidovudine / administration & dosage*
  • Zidovudine / pharmacokinetics
  • Zidovudine / therapeutic use*

Substances

  • Zidovudine