CAPSTAR (nitenpyram) is a fast-acting dog flea treatment tablet for use with dogs that starts killing fleas in only 30 minutes. A single dose of CAPSTAR Oral Flea Treatment kills 90% of adult fleas within 4 hours for dogs. Give this oral flea treatment and watch the dead fleas fall off your pet. CAPSTAR flea tablets are available for dogs and puppies 2-25 pounds, and 4 weeks of age or older. When it comes to fleas and ticks, time is of the essence. That's why you can trust NextStar for fast-acting, long-lasting protection. NextStar Flea & Tick Prevention is a fast-acting 30-day flea & tick topical protection. Our veterinarian-recommended** topical formula provides your dog with 7-way pest protection against fleas, ticks, mosquitoes, chewing lice, flea eggs, larvae, & prevents the development of flea pupae – with no prescription needed. NextStar is an easy-to-use, waterproof topical formula that breaks the flea lifecycle and starts working in 5 minutes for 30 days of protection. Apply NextStar once every 30 days for year-round protection from fleas and ticks. Rest easy knowing your dog is protected with fast-acting flea & tick topical from NextStar.