Physical chemistry is the basis of rational pharmaceutical formulation and processing, and is fundamental to understanding the complexities of drug delivery and drug absorption.

This book provides the physicochemical background to the design and use of pharmaceutical dosage forms. It goes beyond the introductory aspects of the subject to show how basic physicochemical principles are essential to the understanding of every aspect of drug action, from the dosage form to the site of action in the body.

The fourth edition of this well established textbook has been thoroughly revised and re-structured and includes new examples and new figures. In addition it is now presented in a new two-colour design to aid learning and ensure the layout is clear and accessible.