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Biomed Chromatogr. 2013 Dec;27(12):1685-9. doi: 10.1002/bmc.2980. Epub 2013 Jul 17.

Interaction study of acetylcholinestrase inhibitors on pharmacokinetics of memantine in rat plasma by HPLC-fluorescence method.

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  • 1Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut branch, Assiut, 71524, Egypt; Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan.


The present study aims to investigate the possibility of interaction of donepezil (DP) and galantamine (GAL) as acetylcholinestrase inhibitors, on memantine (MT) hydrochloride in rat plasma by HPLC-fluorescence detection. The separation of MT was achieved within 12 min without interference of DP and GAL on the chromatogram. MT levels in rat plasma with a single administration of MT (2.5 mg/kg, i.p.) and those with a co-administration of DP (5.0 mg/kg, i.p.) and GAL (3 mg/kg, i.p.) were monitored. MT concentrations determined in rat plasma ranged from 10.0 to 245.6 ng/mL. Significant difference was observed in the behavior of MT with a co-administration of DP, while no significant difference was observed with a co-administration of GAL.

Copyright © 2013 John Wiley & Sons, Ltd.


HPLC-fluorescence detection; acetylcholinestrase inhibitors; memantine; pharmacokinetics

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