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Bull World Health Organ. 1982;60(1):115-22.

Plasma concentrations in pyrimethamine and sulfadoxine and evaluation of pharmacokinetic data by computerized curve fitting.

Abstract

For the determination of the plasma concentration profiles of pyrimethamine and sulfadoxine after the administration of 1 tablet of Fansidar, highly specific analytical methods are needed as the pyrimethamine concentration is low (0.2 - 0.02 mg/litre) and the concentration ratio of the two components in the plasma is high (> 1: 500). The microbiological method described in this paper fulfils these requirements for high specificity and sensitivity (the sensitivity limit for sulfadoxine is 1 mg/litre and for pyrimethamine is 0.013 mg/litre).Pharmacokinetic data were evaluated for 14 volunteers after administration of 1 tablet of Fansidar, and a computer simulation of multiple dosing (1 tablet per week) was performed.

PMID:
6979415
PMCID:
PMC2536029
[Indexed for MEDLINE]
Free PMC Article

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