The advanced principles and applications of pharmacokinetics have been discussed in this book. It contains updated information and practical analyses regarding the study of drug pharmacokinetics in animals as well as humans. The aim of this book is to serve as a source of reference for scientists, researchers and clinicians and help them to logically develop their knowledge regarding this field from basics to advanced applications. The book consists of analyses of advanced theories which cover topics like bioequivalence studies, simulation theories on the basis of computers, pharmacogenomics in association with pharmacokinetics, drug interactions of herbal medicines and veterinary pharmacokinetics. It also covers practical aspects providing numerous examples of procedures and applications in advanced pharmacokinetics.