Capstar Dog

Interceptor vs. Interceptor Plus: Best Heartworm & Worm Med for Dogs

At Petco, learn more about the benefits & differences of Interceptor & Interceptor Plus dewormer for dogs with heartworm, roundworms, hookworms & tapeworms.

Updated on October 23rd, 2025

Interceptor vs. Heartgard: Guide to Heartworm & Worm Prevention

Search Petco to find the benefits of both Interceptor and Heartgard worm medicines for dogs. We strive to help you keep your pup happy and healthy.

Updated on October 23rd, 2025

Nitenpyram: End Fleas Fast for Dogs & Cats – Your Essential Guide

Nitenpyram is an oral treatment that kills fleas quickly in both dogs and cats. Find effective nitenpyram tablets at Petco.

Updated on October 23rd, 2025

Green Pet Care: Sustainable Products & Practices for Your Furry Friend

Being a sustainable pet parent involves good practices and habits. Learn more about eco-friendly dog products, eco-friendly cat products and other solutions.

Updated on October 23rd, 2025

Stop Fleas, Ticks & Mosquitoes: Pet Pest Prevention for a Healthy Pet

You may have heard that flea and tick prevention are crucial for dogs and cats, but do you know why? Petco is sharing why and how to prioritize pest prevention for your pet.

Updated on October 23rd, 2025

My Yorkie has fleas. Is Capstar chewable the best option for him?

Tobby would do best with a product like Comfortis, Simparica or Bravecto. These products last 1-3 months depending on which one you pick. These oral flea products last longer than Capstar. Capstar only last 1-2 days. You will need a consistent product for 6 months before the fleas will be gone. Hope this helps!

Will Capstar remove all fleas from puppies and mom in a day?

Yes, but you need to follow up with a longer acting flea control product as well. I like Advantage, it’s effective, safe and you can buy it at PetCo. Fleas are difficult to get every one and using another product with the cap star will take care of any you may have missed. Thanks for using Boop by Petco to help you care for your dogs.

Dog has fleas and irritation. Should I use Capstar or topical?

You can use Capstar to kill any adult fleas on her. Since she was recently washed though, you will need to wait 2-3 days before applying a topical preventative. The oils in her skin need to build up to effectively spread the topical flea preventative. Capstar can be given daily if you are seeing adult fleas. In the meantime, wash all bedding and vacuum everywhere. Empty the canister or toss the vacuum bag away outdoors immediately afterwards. You can use an area treatment in the house, such as Knockout ES (by Virbac), to prevent reinfestation. Use a monthly preventative for at least 3 consecutive months, but preferably year round.

Can I give Capstar to my dog after using Pet Armour for fleas?

Yes, you can certainly give Luna a dose of Capstar after applying Pet Armour Plus. The Capstar should kill adult fleas quickly, but will not provide lasting prevention against maturing larvae and eggs. Pet Armour should be able to provide this prevention for the remainder of the month. However, when Luna is due for another dose of flea prevention next month, I would instead recommend using a higher quality product, such as Nexgard, Bravecto, or K9 Advantix II, as I tend to find these products more effective. I hope this helps and that all goes well!

What long-lasting flea treatment pairs best with Capstar?

Capstar is an excellent choice for getting rid of fleas quickly - it's very effective at killing any fleas that may currently be on the dog, but only lasts for 24 hours. This is why it's recommended to start another, longer-lasting flea medication at the same time, or else the fleas will just come right back. The most effective options for flea control currently available are K9 Advantix, Nexgard, or Bravecto - I would recommend getting one of these from your vet if possible, to start within 24 hours of giving the Capstar.