Drug delivery is an important part of medicinal studies as it deals with the study, formulation, and transformation of drugs into reaching their optimum therapeutic effect. The subject includes study of dosage form and administrative route. This book includes some of the vital pieces of work being conducted across the world, on various topics related to drug delivery and drug formulation. It consists of contributions made by international experts. It strives to provide a fair idea about this discipline and to help develop a better understanding of the latest advances within this field. This book is appropriate for students seeking detailed information in this area as well as for experts.