Dog MD Maximum Defense QuickTabs (nitenpyram) for Dogs is an oral flea control medication available over-the-counter to consumers like you. Compare to Capstar (nitenpyram),same active ingredient used in the vet channel. Health Consideration: Flea control medication Features: Capstar is a registered trademark of Novartis AG Life Stage: Dogs over 25 lbs Package Quantity: 6 Tablets Application: Tablets Caution: Keep out of reach of children. Directions: This easy-to-dose tablet begins working within 30 minutes. It cuts out the mess and does exactly what you need it to do: kills fleas fast! If your dog gets re-infested, you can safely give another dose as often as once a day. ItAAATMs safe for nursing or pregnant dogs. You can treat all infested dogs in the household. It is also safe to use in dogs over 4 weeks of age and weighing over 25 pounds.