Abstract
Transdermal drug delivery systems (TDDSs) are gaining increased popularity in the pharmaceutical and cosmetic industries. Several approaches for transdermal delivery are being used in drug targeting including microneedle based formulation, transdermal patches, and topical gels. Alginate is an anionic polysaccharide widely employed in the agricultural, food, pharmaceutical, and biomedical industries. This naturally occurring anionic polysaccharide originates from brown seaweed. The abundant availability of alginate in nature and its excellent biocompatible profile has increased its application as a biopolymer for drug delivery application of therapeutic agents. Amongst many natural polymers, the use of alginate has been increasing in topically applied drug delivery systems over the past few decades. This chapter deals with several approaches of transdermal delivery of alginate based systems and provides an insight into the physicochemical properties and therapeutic efficacy of alginate as a drug carrier.
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