Aarnoutse, Rob E Effect of low-dose ritonavir (100 mg twice daily) on the activity of cytochrome P450 2D6 in healthy volunteers. [electronic resource] - Clinical pharmacology and therapeutics Dec 2005 - 664-74 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Research Support, Non-U.S. Gov't ISSN: 0009-9236 Standard No.: 10.1016/j.clpt.2005.09.001 doi Subjects--Topical Terms: AdolescentAdultAgedArea Under CurveCytochrome P-450 CYP2D6--geneticsCytochrome P-450 CYP2D6 InhibitorsDesipramine--administration & dosageDextromethorphan--urineDextrorphan--urineDose-Response Relationship, DrugDrug Administration ScheduleHIV Protease Inhibitors--administration & dosageHeterozygoteHomozygoteHumansMaleMiddle AgedRitonavir--administration & dosageTime Factors