Advantus chewable flea treatment starts killing fleas within 1 hour Safely repeat treatment as often as once per day Contains 7 soft chews for large dogs: A single dose of Advantus kills adult fleas on a dog. Large dog chewable flea treatment for dogs and puppies age 10 weeks and older Advantus for dogs is a convenient, savory soft chew that is FDA approved Available without a prescription Series Name: Advantus Type: Oral tablet Recommended Pet Size: Small Weight Capacity (lbs.): 22 Active Ingredient: Imidacloprid For Use With: Fleas Hypoallergenic: No Lifestage: Adult Lowe's Exclusive: No Package Quantity: 7 Pet Type: Dog Recommended Age: Over 13 weeks Unit of Measure: Count Unit of Measure Quantity: 7 Use Location: Indoor/Outdoor Warranty: None Waterproof: No CA Residents: Prop 65 Warning(s): No UNSPSC: 70122000