Fiprofort spray is a fipronil based anti-flea and tick spray. Fipronil is a broad spectrum insecticide that acts on fleas, ticks and lice on coat. It kills or expels them by directly affecting their central nervous system. Contains fipronil 0.25% w/v. Fiprofort Spray is used every 4 weeks against tick infestation in both dogs and cats. The minimum treatment interval is 4 weeks. Puppies and kittens from 2 days of age may be safely treated. The product has a persistent acaricidal efficacy for up to 4 weeks against ticks, depending on the level of environmental challenge.