Revolution is a monthly spot-on treatment containing 12% Selamectin for dogs weighing 10.1-20 kg. This veterinary medicine effectively treats and prevents multiple parasitic infections including fleas, heartworm, ear mites, sarcoptic mange and lice. Each package contains 3 tubes of 1.0 mL each. The product is specifically formulated for dogs between 10.1-20 kg body weight. Each tube contains 120 mg/mL of Selamectin as the active ingredient. The treatment should be applied monthly as a spot-on solution directly to the skin. This is a prescription-only veterinary medicine that requires proper safety directions to be followed. The package includes 3 individual doses of 1.0 mL each for a 3-month supply of parasite protection.