Effipro is a practical and more affordable flea and tick treatment from Virbac based on a formula of the safe and effective agent FipronilFlea and tick populations rocket during Summer so protect your pet with Effipro - an award-winning spot-on! Effipro: Kills adult fleas on your ...Effipro is a practical and more affordable flea and tick treatment from Virbac based on a formula of the safe and effective agent FipronilFlea and tick populations rocket during Summer so protect your pet with Effipro - an award-winning spot-on! Effipro: Kills adult fleas on your pet quickly Gives protection against fleas for up to eight weeks in dogs Has a unique drop-lock pipette to ensure there is no mess or leaks during application This product should not be used on puppies less than 2 months old and/or weighing less than 2 kg.