A new approach to evaluate stability of amodiaquine and its metabolite in blood and plasma.

Abstract:

:A stability study for amodiaquine (AQ) and desethylamodiaquine (AQm) in whole blood and plasma is reported. AQ, AQm and chloroquine (CQ) were simultaneously analysed and the ratios AQ/CQ and AQm/CQ were used to ensure correct interpretation of the stability results. CQ was stable in whole blood and plasma at all tested temperatures enabling it to be a stability marker in stability studies. Simultaneous analysis of compounds, of which at least one is already known to be stable, permits a within sample ratio to be used as a stability indicator. The new approach significantly reduced bias when compared to the traditional approach. AQ and AQm were stable in plasma at -86 degrees C and -20 degrees C for 35 days, at 4 degrees C for 14 days and at 22 degrees C for 1 day. AQ and AQm were stable in blood at -86 degrees C and 4 degrees C for 35 days, at -20 degrees C and 22 degrees C for 7 days and at 37 degrees C for 1 day.

journal_name

J Pharm Biomed Anal

authors

Blessborn D,Neamin G,Bergqvist Y,Lindegårdh N

doi

10.1016/j.jpba.2005.10.018

subject

Has Abstract

pub_date

2006-04-11 00:00:00

pages

207-12

issue

1

eissn

0731-7085

issn

1873-264X

pii

S0731-7085(05)00671-0

journal_volume

41

pub_type

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