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Br J Clin Pharmacol. 1999 Jan;47(1):23-30.

The therapeutic monitoring of antimicrobial agents.

Author information

1
Department of Clinical Pharmacology, Christchurch Hospital, New Zealand.

Abstract

AIMS:

To review the basis and optimal use of therapeutic drug monitoring of antimicrobial agents.

METHODS:

Antimicrobial agents for which a reasonable case exists for therapeutic drug monitoring were reviewed under the following headings: pharmacokinetics, why monitor, therapeutic range, individualisation of therapy, sampling times, methods of analysis, interpretative problems and cost-effectiveness of monitoring.

RESULTS:

There is a strong historical case for monitoring aminoglycosides. The recent move to once-daily dosing means that criteria for therapeutic drug monitoring need to be redefined. Vancomycin has been monitored routinely but many questions remain about the most appropriate approach to this. A case can be made for monitoring teicoplanin, flucytosine and itraconazole in certain circumstances.

CONCLUSIONS:

The approach to monitoring aminoglycosides needs to be redefined in the light of once-daily dosing. It is premature to suggest that less stringent monitoring is necessary as toxicity remains a problem with these drugs. The ideal method of monitoring vancomycin remains to be defined although a reasonable case exists for measuring trough concentrations, mainly to ensure efficacy. Teicoplanin is monitored occasionally to ensure efficacy while flucytosine is monitored occasionally to avoid high concentrations associated with toxicity. Itraconazole has various pharmacokinetic problems and monitoring has been suggested to ensure that adequate concentrations are achieved.

PMID:
10073735
PMCID:
PMC2014209
DOI:
10.1046/j.1365-2125.1999.00850.x
[Indexed for MEDLINE]
Free PMC Article

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