Vetsense Permetrol Fly Flea Tick Control 1LVetsense Permetrol Insecticidal Spray and Rinse Concentrate for dogs and horses. Active constituents: 40g L Permethrin 25: 75, Solvent: 698g L Diethylene glycol monobutyl ether. For the control of Pyrethroid sensitive flies: Buffalo Fly, Stable Fly, and biting insects on horses. For the control of fleas and ticks on dogs. An aid in the treatment of flea allergy dermatitis on dogs and Queensland itch on horses. Does not control paralysis tick on dogs.