Parecoxibs (eller dets aktive substans valdecoxibs) virkning på andre lægemidlers farmakokinetik Behandling med valdecoxib (40 mg 2 gange dagligt i 7 dage) gav en 3 gange så stor stigning i plasmakoncentrationerne af dextromethorphan (CYP2D6 substrat).
Effect of parecoxib (or its active metabolite valdecoxib) on the pharmacokinetics of other medicinal products Treatment with valdecoxib (40 mg twice daily for 7 days) produced a 3-fold increase in plasma concentrations of dextromethorphan (CYP2D6 substrate).