This issue of Veterinary Clinics: Equine Practice focuses on Equine Pharmacology. Guest editor Dr. Gary Magdesian has assembled an expert team of authors on topics such as: Update on Anti-Inflammatories: NSAIDS; Update on Corticosteroids and Immune Suppressive Therapies;Antiherpetic Drugs; Update on R Equi Therapeutics; Update on Equine Protozoal Myloencephalitis Therapeutics; Update on Pain Management in Horses; Inhalational Therapies; Update on Therapeutics for Endocrine Disorders; Cardiovascular Therapies; Therapeutics for Equine Gastric Ulcer Syndrome; Neonatal Pharmacology; and Update on Compounding for the Equine Practitioner.