Amitraz (development code BTS27419) is a non-systemic acaricide and insecticide and has also been described as a scabicide. It was first synthesized by the Boots Co. in England in 1969. Amitraz is the only formamidine used as an ectoparasiticide. It appears to act by inhibition of the enzyme monoamine oxidase and as an agonist at octopamine receptors. Monoamine oxidase metabolizes amine neurotransmitters in ticks and mites, and octopamine is thought to modify tonic contractions in parasite muscles. Amitraz has a relatively wide safety margin in mammals; the most frequently associated adverse effect is sedation, which may be associated with an agonist activity of amitraz on α2-receptors in mammalian species. Amitraz is available as a spray or dip for use against mites, lice, and ticks in domestic livestock. It controls lice and mange in pigs and psoroptic mange in sheep. In cattle, it has been used in dips, sprays, or pour-ons for control of single-host and multihost tick species. In dipping baths, amitraz can be stabilized by the addition of calcium hydroxide and maintained by standard replenishment methods for routine tick control. An alternative method involves the use of total replenishment formulations in which the dip bath is replenished with full concentration of amitraz at weekly intervals before use. Amitraz is contraindicated in horses. Amitraz has antipyretic and antiinflammatory activity in vivo, and also has been shown to inhibit prostaglandin E2 synthesis(13). Decreased body temperature was observed in two of our cases. The basic approach to the patient with amitraz poisoning includes initial stabilization, treatment to reduce absorption and measures to improve elimination of the toxin. The medical management is essentially symptomatic and supportive. There is no specific antidote. Despite life-threatening symptomatology, all cases may recover completely. In this study we would like to emphasize that the incidence of poisoning with amitraz is increasing due to its widespread use in veterinary medicine. In order to minimize amitraz poisoning, public education should be given on primary prevention of poisoning and besides, producers should redesign containers as childproof packagers with warning labels