Chlorpyriphos-Cypermethrin induced intermediate syndrome

Abstract

Chlorpyriphos is a broad spectrum chlorinated organophosphate insecticide which is commonly used to control many kinds of pests, including termites, mosquitoes and even roundworms. Cypermethrin is a pyrethroid compound widely used as insecticide. The intermediate syndrome of organophosphorus was first described in 1987. The symptoms occurred after the apparent recovery from acute cholinergic crisis. We present a case report of 33-year-old female with an intermediate syndrome who had consumed a chlorpyriphos-cypermethrin combination, where the cholinergic features re-emerged after 2 weeks after exposure to poison.