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Related Articles & Questions
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- Health & Wellness
My dog has fleas. Can I use Capstar and K9 Advantix together?
You can use both products on the same day so it is fine to start the Advantix at any time. There are better products that Advantix. Top products for dogs are oral products such as Simparica and Nexgard. Top products for cats are topicals such as Revolution and Cheristan. There is also an oral product called Comfortis that both dogs and cats can take. You will need to switch all the pets over to a good flea product. Make sure to discuss these products with your veterinarian first. These products are generally safe for all pets but there are some conditions which are contraindicated for the oral products. Cleaning up and treating the house and yard will also help but it will not clear all the fleas. The main control is making sure the pets are on good products. This is what will ultimately stop the infestation. Also remember every female fleas lays about 50 eggs a day and it could take up to 6 months before the eggs hatch. Therefore, you will need to treat for at least 6 months. Best of luck and please feel free to post any additional questions.
Updated on September 24th, 2025
- Health & Wellness
Is fall truly the worst season for pet flea infestations, and why?
Yes, in most temperate climates, fleas are at their worst [through the fall](https://www.petcoach.co/article/fall-and-fleas-what-you-need-to-know). Like all insects, fleas go through a life cycle where adult fleas lay eggs, which mature to larvae, then pupae and into adults that lay eggs of their own. None of these life stages can survive when temperatures drop below 37 degrees Fahrenheit unless they are already surviving on a host, such as a household pet or wild animal, or are already inside of a warm home. As temperatures warm up in the spring, fleas begin to boom, with adult fleas laying around 2,000 eggs over a two-month span. With consistently warm temperatures, these eggs typically mature into egg-laying adults within three weeks. Consider what happens as these 2,000 eggs mature and each lay 2,000 eggs of their own! The flea life cycle continues to boom until the temperature begins to drop by late fall, making fall the time of year where fleas have grown to the largest population size. In climates that stay above 37 degrees Fahrenheit year-round, there is no reprieve to the flea life cycle. Many pet owners lapse in their use of flea preventives in the fall, which provides fleas with an accessible and unprotected host. In all instances, it is best to keep your pet on a good-quality flea preventive medication consistently year-round. Since all flea preventives are not the same, it is best to discuss the best option for your pet with your veterinarian. ### Capstar is a trademark of Elanco or its affiliates.
Updated on September 24th, 2025
- Health & Wellness
What to do when your cat has fleas: litter box, Capstar, bathing?
1. You don't need to do anything about the litter box 2. You can give them a Capstar and then the next day you can apply a topical flea medication like Advantage II. 3. You need to treat all animals in the house with a flea medication 4. You need to treat the house. I recommend Knockout Spray ES (see below) 5. You do not need to bathe the cats. It is actually better if you don't. 6. If you have a yard, I would treat the yard with Advantage Yard Spray (see below) 7. Monitor the cats for tapeworms. Cats get tapeworms by ingesting infected fleas. It may be a few weeks before you see them, if you are going to see them. ( https://www.allivet.com/p-1389-knockout-es-area-treatment.aspx ) ( https://www.allivet.com/p-8109-advantage-yard-and-premise-spray-32-oz.aspx?SearchTerm=yard%20spray+Auto ) ( https://www.hillspet.com/cat-care/healthcare/dealing-with-tapeworms-in-cats )
Updated on September 24th, 2025
- Medications
Can I give my cat Capstar for fleas after Sentry topical treatment?
Yes, you can give Aries Capstar in addition to the topical Sentry medication. Be sure to continue applying topical flea prevention monthly in order to break the flea lifecycle. When he is due for the next dose of medication, I would recommend using a higher quality (both safer and more effective) flea preventative, such as Advantage, Revolution, or Bravecto. If you have any other dogs or cats in the house, be sure to treat all pets with good quality flea prevention. I hope this helps and that all goes well!
Updated on September 24th, 2025
- Health & Wellness
Cat losing fur, itching, and fleas. Is Advantage or Bravecto better?
Thanks for using Petco Pet Education Center, formerly Petcoach! Thankfully, you have a few options here. I recommend you consider using a product called Capstar which is to kill a lot of fleas at once to complement a flea preventative product like Advantage. You can go ahead and give another dose of Advantage now as well. I would not give up on Advantage just yet. Continue to use it for now as this flea may be was a one time occurrence and the Advantage was still being effective. Another option is switching to Bravecto now though again Advantage may still be effective so it may be best to exhaust its use. Good luck and have a great day!
Updated on September 24th, 2025
