Capstar Green 26 Pounds & Up oral flea treatment starts killing adult fleas within 30 minutes, making it an ideal solution for fast relief. 90% of adult fleas are eliminated within 4 hours, and the effect lasts 24-48 hours. It's most effective when used with a monthly preventative like Frontline, Advantage or Capshield. Give another dose as often as once per day if your pet gets re-infested with fleas.

Active Ingredient: Nitenpyram

Safe for dogs 4 weeks of age or older.

Suitable for dogs 25 pounds & up.