Capstar Flea Killer for Dogs
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At a Glance
Capstar is the ultimate solution for your dog’s persistent flea problem.
Its active ingredient, nitenpyram, that starts killing fleas in the first 30 minutes after application.
Its efficacy shows itself after 4 hours and continues to demonstrate its effects for 1-2 days after one dosage.
Capstar Flea Killer for Dogs is recommended by veterinarians and doesn’t require a prescription.
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Rated 4.5 out of 5 by 90 reviewers.

  • It works!
    I was very surprised when I tried Capstar. I didn't know what to expect and thought, here goes another thing that won't work..It worked! It's continued working since I started my Gigi on it. I couldn't be happier and neither can she. She was in agony scratching and was covered in fleas every time I bathed her. I'm so happy I've found a solution for her & our problem! Thank you, Capstar! by on 08/19/2020
  • Works Great!
    I have nine indoor only cats that got fleas?? Don't know how. I used Capstar flea killer and it works. I would crush up the pill and put it in their food. The pill is tiny so when you crush it, the cats don't see a thing. It only kills the adult fleas for 24 hours. You need to use something else to kill the babies. by on 01/27/2019
  • Capstar Flea Killer
    Works within hours & works GREAT! by on 07/26/2018
  • Flea pill
    The product was good and I liked it. My dog took it easily and I noticed a great difference within hours. by on 07/05/2016
  • Capstar Fizzle
    We used this product a few months ago and it worked fine. Either this shipment was bad or the fleas gathered a very fast tolerance. The fleas were back within a week. by on 05/02/2016
  • This product is easy to use .
    The Capstar product works very well . It does not seem to effect the pet . Instructions are easy to follow . I would recommend this product to everyone . by on 09/05/2015
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