CAPSTAR® (nitenpyram) oral tablets start killing adult fleas in just 30 minutes. Watch the dead fleas fall off your pet.
Capstar is a fast-acting flea treatment tablet for use in dogs that starts killing fleas in only 30 minutes. A single dose of Capstar kills 98% of fleas on the pet within 6 hours, and 100% of fleas within 24 hours. For continuous flea protection, use a monthly topical flea treatment like Advantage II.
Do not use nitenpyram pets that are allergic to it. Do not use in pets under 2 pounds of body weight or younger than 4 weeks old. Nitenpyram should be used cautiously in pets between 4 to 8 weeks of age or pets that are thin or debilitated. Use cautiously in pregnant or nursing pets, although use is likely safe.