Nanomedicine is the medical application of nanotechnology for achieving innovation in healthcare. The introduction of nanomedicine in drug delivery has the potential to enable early detection and prevention of various diseases. In recent years, nanomedicine has been extensively used to improve diagnosis, treatment and follow-up of diseases, including cancer, as well as cardiovascular, neurodegenerative, musculoskeletal and inflammatory diseases. Nanomedicine has several benefits, since it combines therapeutic and diagnostic modalities into one agent. It provides the possibility of site-specific targeting that reduces the side-effects produced by crude drug by minimizing undesired exposure to the healthy cells. The application of nanotechnology in drug delivery allows for the transportation of drugs across epithelial and endothelial barriers. It can act as a key instrument in regenerative, targeted and personalized medicine by delivering novel drugs and treatments. This book aims to shed light on the role of nanomedicine in drug delivery. A number of latest researches have been included to keep the readers up-to-date in this area of study. This book aims to serve as a resource guide for students and experts alike and contribute to the growth of the discipline.