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M9610027.TXT
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1996-01-30
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Document 0027
DOCN M9610027
TI Pharmacokinetics of clarithromycin and zidovudine in patients with AIDS.
DT 9601
AU Vance E; Watson-Bitar M; Gustavson L; Kazanjian P; Department of
Medicine, Brigham and Women's Hospital, Boston,; Massachusetts, USA.
SO Antimicrob Agents Chemother. 1995 Jun;39(6):1355-60. Unique Identifier :
AIDSLINE MED/96012200
AB The interrelationships between the pharmacokinetics of zidovudine alone
and of zidovudine plus clarithromycin were evaluated with 18 volunteers
with AIDS who had no infection with Mycobacterium avium complex or
clinical evidence of gastroenteritis. Patients received 200 mg of
zidovudine orally every 8 h on days 1 to 4 and 1,000 mg of
clarithromycin every 12 h, given 2 h apart from zidovudine, on days 2 to
4. Concentrations of zidovudine in plasma were measured at steady state
both prior to (phase 1, day 1) and during (phase 2, day 4)
administration of clarithromycin. Levels of clarithromycin were measured
at steady state on day 4. The maximum concentrations of zidovudine in
plasma were significantly different in phases 1 and 2 (616.6 and 949.0
ng/ml, respectively), as were the times to the maximum concentrations of
zidovudine (2.1 and 1.0 h, respectively). However, the minimum
concentrations in plasma and the areas under the concentration-time
curves from 0 to 6 h did not differ on days 1 and 4. There is no
significant impact on the overall bioavailability of zidovudine from the
addition of clarithromycin in patients with AIDS. Clarithromycin may
increase the rate of zidovudine absorption, but this is unlikely to have
clinical relevance.
DE Acquired Immunodeficiency Syndrome/DRUG THERAPY/*METABOLISM Adult
Clarithromycin/ADMINISTRATION & DOSAGE/BLOOD/*PHARMACOKINETICS
Comparative Study Drug Therapy, Combination Female Human Male
Middle Age Time Factors Zidovudine/ADMINISTRATION &
DOSAGE/BLOOD/*PHARMACOKINETICS CLINICAL TRIAL JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).