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Rofecoxib is a potent and highly selective cyclooxygenase-2 inhibitor used for the treatment of osteoarthritis and pain. Following administration of [4-(14)C]rofecoxib to intact rats, the plasma(More)
Analytical method for the simultaneous determination of dextromethorphan (1) and dextrorphan (2) in urine, based on solid-phase extraction of drug from acidified hydrolyzed biological matrix, were(More)
A method for the simultaneous determination of a cyclooxygenase-2 inhibitor, 4-(4-methanesulfonylphenyl)-3-phenyl-5H-furan-2-one (rofecoxib, I) and [13C7]rofecoxib, (II), in human plasma has been(More)
Methods based on high-performance liquid chromatography (HPLC) with atmospheric-pressure chemical ionization (APCI) mass spectrometric (MS) detection using either single (MS) or triple (MS/MS)(More)