The first part of this book can be called a prescription reference book: it contains a complete list of medications with a brief description of their physicochemical properties, pharmacological action and indication of doses and methods of use. Information is provided about medicines, both long-known and new ones that have recently entered veterinary practice. The second part is a therapeutic reference book: in it the reader will find detailed information about the use of medicines for the treatment and prevention of diseases in dogs and cats. An alphabetical index of medications allows you to quickly find the information you need. The directory is designed for a wide range of readers: veterinarians, students of veterinary faculties of universities and all owners of dogs and cats.