Advocate Blue for extra large dogs provides monthly flea, heartworm, and worm protection in a spot-on format. The 6-pack covers six months of comprehensive parasite coverage for the largest breeds.

Each monthly pipette kills adult fleas and larvae, prevents heartworm disease, and treats roundworm, hookworm, whipworm, and mites. Applied to the back of the neck, the treatment spreads across the skin for full-body coverage. Dosed for dogs in the heaviest weight bracket.

Consistent monthly treatment is essential for heartworm prevention, and the 6-pack format helps large dog owners maintain an unbroken schedule without the inconvenience of monthly purchases.