摘要: Background: Intestinal drug metabolism and transport are now well recognized determinants of disposition in humans. During the last decade, various animal models lacking transporters have been generated order to investigate role for absorption, distribution elimination. Objective: In this review use investigation intestinal will be discussed. Methods: Publications describing knockout animals (e.g., P-glycoprotein, Bcrp, Oct1) regarding characterized by mutations genes Mrp2) were mainly considered review. Results/conclusion: Knockout mouse ABC highly valuable tools efflux bioavailability compounds.