Review Article on Transdermal Drug Delivery System

Transdermal patches are mainly used as cosmetic, topical and transdermal drug delivery systems. Ttransdermal patches represent a key outcome from the growth in skin science, technology , expertise developed through trial and error, clinical observation and evidence-based studies that date back to the first existing human records. This review begins with the quirk topical therapies and traces topical delivery drug system to the present day transdermal patches, describing along the way the initial trials, devices and drug delivery systems that underpin current transdermal patches and their actives. This is followed by consideration of the evolution in the various transdermal patch designs and their limitations as well as needs for active to be used for transdermal delivery system . The properties and issue associated with the use of currently marketed products, such as safety and regulatory aspects, are then described.