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Nano-based Drug Delivery System Enhances the Oral Absorption of Lipophilic Drugs with Extensive Presystemic Metabolism

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Oral administration remains the most preferred route for the treatment of many diseases due to its convenience and adaptability. However, the presystemic metabolism may be an important barrier that prevents lipophilic drugs from achieving their pharmacological effects following oral delivery. Nano-based drug delivery system provides an effective strategy to reduce the presystemic metabolism and increase the systemic exposure of lipophilic drugs. In this review, we described the physiological factors affecting the presystemic metabolism of lipophilic drugs, intestinal transport of nanosystems, strategy of nanosystems to avoid the presystemic metabolism, and the current application of various oral nanosystems including lipid and polymeric nanocarriers. The nano-based drug delivery system has a lot of potential for reducing the presystemic metabolism and enhancing the bioavailability of orally administrated lipophilic drugs.
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Keywords: Lipophilic Drugs; Metabolism; Nano-based Drug Delivery System; Nanosystems; Oral Absorption; Presystemic; anti-cancer drugs; bioavailability; inhibitors; ketoconazole; lipophilic drugs; lumen; oral delivery; presystemic metabolism

Document Type: Research Article

Publication date: October 1, 2012

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  • Current Drug Metabolism aims to cover all the latest and outstanding developments in drug metabolism and disposition. The journal serves as an international forum for the publication of timely reviews in drug metabolism. Current Drug Metabolism is an essential journal for academic, clinical, government and pharmaceutical scientists who wish to be kept informed and up-to-date with the latest and most important developments. The journal covers the following areas:

    In vitro systems including CYP-450; enzyme induction and inhibition; drug-drug interactions and enzyme kinetics; pharmacokinetics, toxicokinetics, species scaling and extrapolations; P-glycoprotein and transport carriers; target organ toxicity and interindividual variability; drug metabolism and disposition studies; extrahepatic metabolism; phase I and phase II metabolism; recent developments for the identification of drug metabolites and adducts.
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