This completely redesigned book provides concise knowledge about the main topics of over-the-counter sales. It provides the most important facts about: - Areas of the law relevant to pharmacies and regulations on hazardous materials, - The most important issues concerning self-medication and correct use of dosage forms, - Medical devices such as bandages and dressings, blood pressure meters and incontinence products, - Specific subjects such as interactions and the misuse of drugs. Text boxes, revised to improve learning, highlight important information; diagrams and pictures illustrate the facts, and QR codes allow access to additional online material. This standard work can be used as a textbook in class, to prepare for the final examination and as a reference work in everyday professional life. The book also brings together all that is important for returnees.