Did your pal bring some extra critters home from the dog park, or after an adventure through the backyard? Don't worry—you can help your pet ditch the fleas with PetArmor CapAction Oral Flea Treatment for Dogs 25+ lbs, 6 doses. Designed as a small tablet, this treatment won’t rub or wash off, which means it won't leave dangerous pesticide residue on your pet. Best of all, it's fast! This oral flea treatment starts killing adult fleas on pets within 30 minutes of administration and is 90% effective against adult fleas within four hours for canine companions.