This comprehensive text introduces concepts in pharmacology and explaining their application in veterinary practice, and provides students with a logical basis for the use of drugs in veterinary therapeutics. The book explains the fundamental principles of pharmacology, pharmacokinetics (movement of drugs around the body), and pharmacodynamics (how drugs work and the effects they produce); considers the legal implications surrounding the use of drugs by veterinarans and the requirements for prescription writing. In addition, this study looks at the various systems of the body and describes the effects of drugs on their function. It also provides details of the pharmacology and therapeutics of hormones and drugs used for antiviral, antibacterial, antiprotozoal, antifungal, anthelmintics and antineoplastic chemotherapy.