Evidence gathered in various studies points to the fact that haemanthamine, an isoquinoline alkaloid, has multiple medicinally interesting characteristics, including antitumor, antileukemic, antioxidant, antiviral, anticonvulsant and antimalarial activity. This work presents, for the first time, a universal LC-MS/MS method for analysis of haemanthamine in plasma, bile and urine which has been verified in a pilot pharmacokinetic experiment on rats. Chromatographic separation was performed on a pentafluorophenyl core-shell column in gradient elution mode with a mobile phase consisting of acetonitrile-methanol-ammonium formate buffer. A sample preparation based on liquid-liquid extraction with methyl tert-butyl ether was employed with ambelline used as an internal standard. Quantification was performed using LC-MS-ESI(+) in Selected Reaction Monitoring mode. The method was validated according to the European Medicines Agency guideline in a concentration range of 0.1-10 μmol/L in plasma, bile and urine. The concentration-time profiles of haemanthamine in plasma, bile and urine after a single i.v. bolus of 10 mg/kg have been described for the first time. The presented study addresses the lack of information on haemanthamine pharmacokinetics and also introduces a new universal method of haemanthamine analysis in complex biological matrices. Copyright © 2015 John Wiley & Sons, Ltd.

ADINACO Research Group Department of Pharmaceutical Botany and Ecology Faculty of Pharmacy Charles University Heyrovského 1203 Hradec Králové 500 05 Czech Republic

Department of Biological and Biochemical Sciences Faculty of Chemical Technology University of Pardubice Studentská 573 Pardubice 532 10 Czech Republic

Department of Medical Biochemistry Faculty of Medicine in Hradec Králové Charles University Prague Šimkova 870 Hradec Králové 500 38 Czech Republic

Department of Pharmacology Faculty of Medicine in Hradec Králové Charles University Prague Šimkova 870 Hradec Králové 500 38 Czech Republic

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