Click Here for Application DirectionsClick Here for Warning InstructionsTick & Flea Spot On Treatment for dogs 10.1 - 20kg. Use in dogs from 6 weeks of age. Treats against the following parasites: adult fleas, flea eggs, heartworm, ear mites, sarcoptic mites and ticks. REVOLUTION (Selamectin) by Pfizer is the safe, simple way to protect your pet from heartworms, fleas and other harmful parasites. Protecting pets from harm is one of the important bonds between people and their pets. Broad spectrum protection from dangerous pests is important for your pet’s health