In vitro, topotecan did not inhibit human P# enzymes CYP#A#, CYP#A#, CYP#C#, CYP#C#, CYP#D#, CYP#E, CYP#A, or CYP#A nor did it inhibit the human cytosolic enzymes dihydropyrimidine or xanthine oxidase
In vitro hämmar topotecan varken P#-enzymerna CYP#A#, CYP#A#, CYP#C#, CYP#C#, CYP#D#, CYP#E, CYP#A eller CYP#A, eller de cytosoliska enzymerna dihydropyrimidin eller xantinoxidasEMEA0.3 EMEA0.3