Containing 350 illustrations, tables, and equations and covering AAPS/FDA guidelines for the experimentation and analysis of in vivo and in vitro percutaneous absorption, this reference provides comprehensive coverage of the development, preparation, and application of topical and transdermal therapeutic systems. Recognized international experts discuss the bioequivalence of dermatological and transdermal dosage forms. They explore the biochemistry and treatment of skin diseases, the structure and function of the skin, adverse dermal responses to drug formulations, mechanisms of drug transport through barrier membranes, and methods for measuring and modulating percutaneous permeation.