Fiprofort plus contains fipronil that paralyses & kills adult fleas /ticks and s-methoprene, an insect growth hormone regulator that breaks the life cycle of fleas. It offers one-month protection from fleas and ticks. Fiprofort plus is safe for pets & pet parents. It breaks flea lifecycles & prevents re-infestation. Clinical studies have shown that fiprofort plus reduces the egg laying and hatching capacity in female ticks.