Pharmasceutics explores the different forms that medicines can take and demonstrates how being able to select the best form — be it a tablet, injectable liquid, or an inhaled gas — requires an understanding of how chemicals behave in different physical states. Taking medication is a common occurrence for many people, whether it be to deal with minor ailments such as a headache or life-threatening conditions such as HIV or cancer. In the UK alone, over 900 million prescriptions are dispensed every year. Overseeing all of this are pharmacists: experts in medicines and their use. This book is part of a series that supports those who are training to become pharmacists.