Fipronil toxicosis in rabbits.

Fipronil is a phenylpyrazole insecticide used to control a variety of insects such as ants, beetles, cockroaches, fleas, ticks and termites. It comes in a variety of formulations: topical, spray, dust and bait. This article focuses on the topical spot-on product labeled for use in dogs and cats. When this product initially debuted, published, extralabel dosing recommendations for fipronil were used successfully in rabbits but subsequently, extralabel administration in rabbits has become contraindicated due to toxicity concerns continue