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Learn how to care for your cat, recommended diet and grooming care. Find the right food, supplies and equipment at your neighborhood Petco.
Updated on October 29th, 2025
Search Petco for information on selamectin for pets of all kinds. We have all the details on how to prevent heartworms & parasites to keep your pet healthy.
Updated on October 29th, 2025

Discover how to choose the best supplements for your pet’s health, from essential vitamins to joint support and digestion aids. Learn age-specific and seasonal supplement tips for cats and dogs.
Updated on October 29th, 2025
Do you think your pet has a bacterial infection? Visit Petco to learn how Clavamox can help your dog and cat.
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Learn how to remove flea and ticks. Petco has flea and tick removal services for dogs and cats. Get fleas and ticks removed at your neighborhood Petco.
Updated on October 29th, 2025
Comfortis is a prescription product so you will need to see your veterinarian. If you can has been examined within the last year, they may be able to approve the medication for you. You will also need to call your vet for pricing. It's typically cheaper per dose to buy it in a 6 months supply rather than a single dose. Ask if any rebates are currently running as this could help as well. To fully get rid of fleas, you will need to treat all the pets for 6 months. I hope this helps.
Updated on August 12th, 2025
Hi there. I think your plan of using Comfortis instead is a good one. If you opt to do this, there's really no need to give the Capstar first, as the Comfortis will start working quickly on its own :) You can go ahead and do this now - the Comfortis should not have any harmful interactions with the Advantage, even if it was only applied a week or so ago.
Updated on August 12th, 2025
Thanks for using Boop by Petco! You are correct- Cody will need the 560mg size. It won’t hurt to give the smaller size but it may not be totally effective. Or you can contact your veterinarian and see if you can switch out the dose for the correct size. Good luck and kisses to Cody!
Updated on August 12th, 2025
Great question and thank for you for providing the pictures! It is not safe to give your cat the Comfortis in a box that only has a picture of a dog on it. That medication is for dogs only. The box that has both the cat and dog on it means that it is safe to give to cats, and be sure to give your cat the dose according to his weight. I hope this helps :-)
Updated on August 12th, 2025
I'm sorry you're having such a challenging time with Meowsie. It certainly is good of you to treat a feral cat. Crushing Comfortis and mixing it with food shouldn't cause a problem with its absorption, so I doubt that is your problem. If you are still seeing fleas, you might ask your vet for another recommendation, but Comfortis tends to work well. Unfortunately, when a cat has flea allergies or chronic skin problems, it can take a while for the itching to improve even once the fleas have been treated. I might consider giving her a fish oil supplement daily to help improve her skin and decrease her itching. There are a number of fish oil supplements for cats such as Wellactin ( http://www.welactin.com/?pg=cat ). Good luck! I hope that was helpful. Thanks for using Boop by Petco.
Updated on August 12th, 2025