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Rapid Degradation of Oseltamivir Phosphate in Clinical Samples by Plasma Esterases

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Specialty Pharmacology
Date 2006 Aug 31
PMID 16940130
Citations 16
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Abstract

The anti-influenza drug oseltamivir is an ester prodrug activated by hepatic carboxylesterases. Plasma esterases also convert up to 31.8% of the parent compound to the active metabolite after 4 h ex vivo, with wide interindividual variation. This source of error is removed by adding the esterase inhibitor dichlorvos to blood collection tubes.

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