Natural Polysaccharides for Bioadhesive Drug Delivery

Natural Polysaccharides for Bioadhesive Drug Delivery

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In recent years, considerable attention has been focused on the development of new drug delivery systems (NDDS) than the development of new chemical entities. A frequently encountered problem in controlled release forms is the inability to increase residence time of the dosage form at application site. However prolonged contact time of a drug with body tissues through the use of a bioadhesive polymers, can significantly improve the performance of many drugs. The bioadhesive polymers may be classified as synthetic or natural polymers. The natural Bioadhesive polymers possess high molecular weig...