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Aim of this review is to compile the current literature with special focus on role of natural polymers on mucoadhesive drug delivery system. Mucodhesion refers to bond formed between two biological surfaces or a bond connecting a biological and a synthetic polymer surface. Under this drug delivery, buccal mucosa is the preferred site for both systemic and local drug action because the mucosa has a rich blood supply and it relatively permeable. Different bioadhesive dosages form available in market such as Chewing gum, tablets, Patches, Hydrogel, Thiolated tablets. In this review article the Application of natural mucoadhesive polymers advantages, disadvantages and future prospects in Buccal drug delivery has been discussed.

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