This accessible book introduces pharmacology and calculations in a friendly, informative way and is now updated throughout with new topics and new coverage of more drugs and drug issues. The book focuses on the pharmacology knowledge needed at pre-registration level and does not assume previous knowledge of pharmacology, or a level of confidence with maths and drugs calculations. Barber and Robertson build on your existing knowledge of anatomy and physiology to help give a holistic understanding of body systems. This user-friendly guide includes: Calculation sections containing 90 calculations to help you perfect your skills 100 multiple choice questions to help the reader assess learning Clinical tip boxes linking pharmacology to the role of the nurse (more have been added for this edition) Patient scenarios from a range of different clinical settings, demonstrating pharmacology in clinical settings The book emphasises application of pharmacological principles to all areas of practice including drug action, interaction and side effects. Among the topics covered are: Local anaesthetics and analgesics Anti-inflammatory drugs Drugs used for chronic conditions Drugs in mental health Legal and professional issues Essentials of Pharmacology for Nurses is core reading for all pre-registration nurses.