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Floating Drug Delivery System:An Innovative Acceptable Approach in Gastroretentive Drug Delivery
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Controlled release (CR) dosage forms have been extensively used to improve therapy with several important drugs. The recent developments of floating drug delivery systems (FDDS) including the physiological and formulation variables affecting gastric retention, approaches to design single-unit and multiple-unit floating systems, and their classification and formulation aspects are covered in detail. This review also summarizes the in vitro techniques, in vivo studies to evaluate the performance and application of floating systems. Floating dosage form can be prepared as tablets, capsules by adding suitable ingredients as well as by adding gas generating agent. In this review various techniques used in floating dosage forms along with current and recent developments of stomach specific floating drug delivery system for gastro retention are discussed.
Keywords
Floating Drug Delivery Systems, Mechanism, Single Unit, Multiple Units, Evaluation Method.
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