Hair analysis of flecainide for assessing the individual drug-taking behavior.

Abstract:

OBJECTIVE:The concentration of flecainide in hair was measured to determine its value as an index of individual drug-taking history. METHODS:Hair samples obtained from 15 patients treated with flecainide for more than 1 month were cut into 1-cm-long portions successively from its scalp end. The concentration of flecainide in each hair portion was measured using high-performance liquid chromatography. RESULTS:Flecainide was detected in the 1-cm-long hair portion at the scalp end in the concentration range of 38.0-411.9 ng x mg(-1), which significantly correlated with the area under the plasma flecainide concentration versus time curve. The axial centimeter-by-centimeter distribution of flecainide along the hair shaft well reflected the individual history of drug use. CONCLUSION:The present study suggests the usefulness of determining flecainide in hair to provide retrospective information on the individual drug-taking behavior qualitatively.

journal_name

Eur J Clin Pharmacol

authors

Takiguchi Y,Ishihara R,Torii M,Kato R,Kamihara S,Uematsu T

doi

10.1007/s00228-002-0450-9

subject

Has Abstract

pub_date

2002-05-01 00:00:00

pages

99-101

issue

2

eissn

0031-6970

issn

1432-1041

journal_volume

58

pub_type

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