Doherty, M M Route-dependent metabolism of morphine in the vascularly perfused rat small intestine preparation. [electronic resource] - Pharmaceutical research Mar 2000 - 291-8 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0724-8741 Standard No.: 10.1023/a:1007548905772 doi Subjects--Topical Terms: AnimalsCalcium Channel Blockers--pharmacologyDuodenum--metabolismInjections, Intra-ArterialIntestinal Absorption--drug effectsMaleMicrosomes--metabolismModels, BiologicalMorphine--pharmacokineticsNarcotics--pharmacokineticsOrgan Culture TechniquesPerfusionRatsRats, Sprague-DawleyTritiumVerapamil--pharmacology