Advantage Flea Treatment for Medium Dogs 4-10kg is a spot-on flea treatment for dogs weighing 4-10kg. Advantage Flea Treatment for Medium Dogs 4-10kg is effective in breaking the flea life-cycle and stops fleas from feeding within 3 to 5 minutes of application and kills adult fleas and larvae within 20 minutes. Advantage Flea Treatment for Medium Dogs 4-10kg only needs to be applied monthly as it provides month long flea protection and it is also water resistant. Advantage Flea Treatment for Medium Dogs 4-10kg is a available in a pack of 1, pack of 4 and pack of 6.