Pharmaceutical product development is a multidisciplinary activity which includes extensive efforts in systematic product development and optimization in compliance with regulatory requirements to ensure the quality, efficacy and safety of the resulting pharmaceutical dosage form.Pharmaceutical Product Development prepares the pharmaceutical formulation scientist with current and up-to-date knowledge of drug product development process and covers all ladders from the beginning of product conception to the final packaged form that enters the market and lifecycle management thereof.Applications of core scientific principles for product development are also thoroughly discussed in conjunction with the latest approaches involving use of novel excipient of natural origin with comprehensive illustrations based on practical case studies of sustained release drug delivery system.The present book discusses pharmaceutical product development information in an a very easy and lucid manner with simplified theories, case studies and guidelines for students, academicians and professionals in the pharmaceutical industry.