Abstract − Analytical Sciences, 37(9), 1301 (2021).
Optimization of Analytical Procedure for In-hospital Rapid Quantification of Serum Level of Favipiravir in the Pharmacological Treatment of COVID-19
Yukiko MORIIWA,* Go MORIKAWA,** Katsuko OKAZAWA,** and Akio YANAGIDA*
*Department of Biomedical Analysis, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
**Department of Pharmacy, Hokushin General Hospital, 1-5-63 Nishi, Nakano, Nagano 383-8505, Japan
**Department of Pharmacy, Hokushin General Hospital, 1-5-63 Nishi, Nakano, Nagano 383-8505, Japan
An in-hospital rapid method for quantifying the serum level of favipiravir (FPV) in the pharmacological treatment of COVID-19 was developed by an appropriate combination of a solid-phase extraction treatment and a reversed-phase HPLC/UV detection system. The quantification method was well-validated and applied to measuring the serum FPV level in a clinical practice at a general hospital that accepts COVID-19 patients. Furthermore, an analysis of data from our preliminary interaction analysis revealed, for the first time, that FPV selectively forms complexes with ferric (Fe3+) and cupric (Cu2+) ions.
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