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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/18110
Title: Pharmacokinetics and bioavailability of oral and intramuscular artemether
Authors: J. Karbwang
K. Na-Bangchang
K. Congpuong
P. Molunto
A. Thanavibul
Mahidol University
Keywords: Medicine;Pharmacology, Toxicology and Pharmaceutics
Issue Date: 18-Jul-1997
Citation: European Journal of Clinical Pharmacology. Vol.52, No.4 (1997), 307-310
Abstract: Objective: The pharmacokinetics and bioavailability of artemether and dihydroartemisinin were investigated in eight Thai males following the administration of single oral and intramuscular doses of artemether (300 mg) in a randomized two-way cross-over study. Results: Both oral and intramuscular artemether were well-tolerated. In most cases, artemether and dihydroartemisinin were detected in plasma after 30 min and declined to levels below the limit of detection within 18-24 h. Compared with intramuscular administration, oral administration of artemether resulted in a relatively rapid but incomplete absorption [C(max): 474 vs 540 ng·ml-1; t(max): 2.0 vs 3.9 h; AUC: 2.17 vs 5.20 μg·h·ml-1]. Geographic means of lag-time and absorption half-life (t( 1/4 a)) of oral vs intramuscular artemether were 0.28 and 1.1 h vs 0.30 and 2 h, respectively. t(t 1/4 z) was significantly shortened after the oral dose [2.8 vs 6.9 h]. Mean oral bioavailability relative to intramuscular administration was 43.2%. The ratio of the AUCs of artemether to dihydroartemisinin was significantly lower after the oral than after the intramuscular dose (geometric mean: 0.29 vs 0.60).
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0030786432&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/18110
ISSN: 00316970
Appears in Collections:Scopus 1991-2000

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