Review Article Open Access

Cyclodextrin In Drug Delivery: A Review

Abstract

Cyclodextrins (CDs) are a family of cyclic oligosaccharides composed ofα-(1, 4) linked glucopyranose subunits. CDs have been found as potential candidates because of their ability to alter physical, chemical and biological properties of guest molecules through the formation of inclusion complexes. Pure cyclodextrins that were suitable for pharmaceutical applications did not come available until about 25 years later and at the same time the first cyclodextrin-containing pharmaceutical product was marketed in Japan. Later cyclodextrin-containing products appeared on the European market. Cyclodextrin molecules are relatively large with a number of hydrogen donors and acceptors and, thus, in general they do not permeate lipophilic membranes. In the pharmaceutical industry cyclodextrins have mainly been used as complexing agents to increase aqueous solubility of poorly soluble drugs, and to increase their bioavailability and stability.

Chordiya Mayur A and Senthilkumaran K

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