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SMEDDS - A Tool to Explore Oral Bioavailability Problems   Sanket Shah and Mansi Shah

SMEDDS - A Tool to Explore Oral Bioavailability Problems

140 страниц. 2012 год.
LAP Lambert Academic Publishing
As a consequence of modern drug discovery techniques, there has been a steady increase in the number of new pharmacologically active lipophilic compounds that are poorly water-soluble. Approximately 40% of new drug candidates have poor water solubility and oral delivery of such drugs is frequently associated with implications of low bioavailability, high intra and inter subject variability and therapeutic failure. It is a great challenge to convert these molecules into orally administered formulations with sufficient bioavailability. Among the approaches to improve the oral bioavailability of these molecules, the use of self-emulsified drug delivery systems (SEDDS) has been shown to be reasonably successful.SEDDS is ideally an isotropic mixture of oils and surfactants and sometimes co-solvents. Hydrophobic drugs can be dissolved in these systems, enabling them to be administered as a unit dosage form for per-oral administration. When such a system is released in the lumen of the...
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