(Absorbine) Absorbine Flys-X is a water-based, ready-to-use insecticide for use on horses, foals, dogs and livestock. Absorbine Flys-X contains botanical pyrethrins plus piperonyl butoxide. Effective and fast acting against stable flies, horse flies, deer flies, horn flies, house flies, mosquitoes and gnats. Kills fleas and brown dog ticks on dogs and premises. Contains 0.10% pyrethrins and 1.0% piperonyl butoxide.