Chitosan has been worldwide exploited as a system to fulfill requirements in terms of patient compliance and marvelous therapeutic efficacy. These systems involve precise control over release profile of drug at a specific site in targeted delivery. This review insight on chitosan’s physicochemical and biological characteristics and reflect its role and application pharmaceutical approaches. Chitosan is a unique, effective and advantageous agent with a wide spectrum of desired properties. Recent scientific advancements have employed it as a carrier for most of recent drug delivery systems with marvelous therapeutic interventions. Further studies; unveil the hidden worthy and promising properties of chitosan and its derivatives, to obtain recent delivery systems, hold exciting and fabulous prospects in the near future and also at present.
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