Pyrethrins and Pyrethroid Insecticides

Abstract

This chapter presents the traditional categories of overview, etiology/pathophysiology, signalment/history, clinical features, key differential diagnosis, diagnostics, and therapeutics of pyrethrins and pyrethroid insecticides use in equine. Pyrethrins and pyrethroids are the most common products to control ectoparasites on horses. Dermal exposure is most common but accidental ingestion or inhalation may occur. Pyrethrins and pyrethroids act primarily on the nervous system and can cause allergic skin reactions. Pyrethrins and pyrethroids are relatively safe when used according to label instructions. The chapter is an indispensable reference for veterinary clinicians and students dealing with equine medicine, as well as for anyone seeking concise and comprehensive information about equine toxicology.