This book presents the course in detail as laid down by Indian Nursing Council (INC) for undergraduate students of nursing. Each chapter contains extensively developed course outlines. There is a review of the physiology of the reactive body systems and tissues. The tables in this book are of special values which have summarized drug details, major allergic and toxic effects or list of antagonist drugs. Different graphics, special information boxes, along with multiple choice questions have been incorporated in each chapter, which will serve not only academic but clinical purposes too.