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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 November 13th, 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 November 13th, 2025
Learn about effective steps to prevent parasites in dogs hat can cause dog heartworm, Lyme disease and more.
Updated on November 13th, 2025
Does your pet have issues with bacterial infections and parasites or gastrointestinal infections? Metronidazole is a great antibiotic to help your pet!
Updated on November 13th, 2025
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 November 13th, 2025
Congratulations on your new dog! I like Revolution if you are looking for a topical product. It consistently works well and is well tolerated. If you like the idea of an oral product better, I like Trifexis (it’s another all in one product). Sometimes though the pets can smell the Trifexis and they won’t eat it. In that instance, I like Simparica and Interceptor. My personal preference is oral products. I hope this helps and please feel free to post any additional questions.
Updated on August 12th, 2025
Oh no! Fleas are not a fun surprise! Trifexis prevents fleas, heartworms and some intestinal parasites. Since this isn't working for you, I typically recommend using either Nexgard, Bravecto or K9 Advantix II as flea and tick prevention. Please note that Nexgard and Bravecto are prescription-based (like the Trifexis), so these would need to be obtained by Prince's vet. Prince and his friend will also need to start a separate heartworm prevention, such as Heartgard or Interceptor, but again, these are prescription-based. Until you can pick up these new medications, you can bathe both dogs in original blue Dawn dish soap because this will help to kill the existing adult fleas. I hope this helps and that all goes well!
Updated on August 12th, 2025
Trifexis has a product guarantee if you purchased it from your vet, so I would recommend contacting your vet to get the guarantee started and decide on a treatment plan for the fleas. I am attaching a link about the guarantee below. https://www.trifexis.com/about-elanco/our-guarantee Since Pierre is so itchy, I would recommend having your veterinarian examine him to see if he needs any medication for the itching to make him more comfortable while the fleas are being treated. Good luck! I hope that was helpful. Thanks for using Boop by Petco.
Updated on August 12th, 2025
Hi, thanks for using Boop by Petco! Switching to Trifexis is fine. Just be aware that Trifexis doesn't get ticks (neither does Sentinel, it is just heartworm, GI parasites and sterilized female fleas). I hope this helps!
Updated on August 12th, 2025
Hello and thank you for reaching out to Boop by Petco. Yes, there are lots of other non-topical flea and tick prevention options. Nexgard and Bravecto have oral chews that dogs can eat as treats. Nexgard is monthly whereas Bravecto is every 3 months. Both of these prevent against fleas and ticks. Heartgard is an oral medication that protects against heartworm and other intestinal parasites. There is a Seresto collar that can be worm by dogs to prevent flea and tick infections for up to 8 months. I recommend reaching out to your local vet to see which products they have available. I hope this is helpful!
Updated on August 12th, 2025