Advantix for Extra Large Dogs is a topical solution that provides protection against fleas and ticks in puppies and dogs that weigh over 25kg. A single dose of Advantix Blue pack kills fleas and ticks. Plus, it repels ticks including paralysis ticks. This monthly spot-on formula protects dogs from irritating biting insects including mosquitoes, sand flies, stable flies, and lice. Advantix for Extra Large Dogs over 25kg pack also aids in controlling Flea Allergy Dermatitis (FAD).Advantix for Extra Large Dogs is safe for use on puppies and dogs from 7 weeks of age and keeps them protected for a complete month.