EFFITIX® is a Fipronil and Permethrin based spot on solution which control infestations of ticks, fleas, mosquitoes and sandflies. This topical Solution for Dogs remains effective after bathing, shampooing, water immersion or sunlight exposure. For easy and convenient application, EFFITIX Topical Solution for Dogs featuring unique 'drop-stop' pipette technology that lets you apply the product in just the right place on your pets – with no mess and no fuss. EFFITIX® spot on solution is available for puppies and dogs 8 weeks old or older in 3 dose sizes for dogs from 4 to 40 Kg.