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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 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
Unsure which flea & tick medication to choose for your pup? Check out our comparison of Simparica Trio vs. Trifexis to see which product will work best for your dog!
Updated on October 29th, 2025
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 29th, 2025
Most pet parents are familiar with topical or oral flea and tick preventives. So which is better for your pet—topical or oral?
Updated on October 29th, 2025
Sentinel has no tick coverage and does not kill fleas. It only sterilizes the eggs. I always go up a size to be safe as most dogs gain weight but rarely lose weight. It has a good safety margin so using the 25-50 pounds medicine would be best. You will continue to need the Simparica or nexgard with this
Updated on August 12th, 2025
You are right to be concerned a lot ticks! Three is a lot of tick illness in the US. There are both oral and topical products that control fleas and ticks. Sentinel doesn't even kill fleas or prevent them from biting your pet. Nexgard is the only oral flea and tick med for pets under 6 months. Frontline is a topical product that kills fleas and ticks. Seresto collars are great and last 8 months. Because Sentinel doesn't even kill the fleas, there is no overlap if you ask your vet about one of these meds.
Updated on August 12th, 2025
Over the counter flea products that are fine to use with sentinel include frontline plus, advantage and Advantix. Just be sure to not bathe your dog a couple days before or after applying any of those products as that can affect how effective they are.
Updated on August 12th, 2025
Sentinel is a monthly heartworm and intestinal parasite prevention. It also is a birth control for fleas. This means it does not kill the adult flea but it prevents them from laying eggs. If your pet has a flea allergy, this product would not be helpful because the flea would still be able to bite. There are many other flea preventions that kill adult fleas like Nexgard, Vectra, Frontline Gold, and Revolution. If you are having flea problems, I would talk to your vet about other options they have. Good luck!
Updated on August 12th, 2025
You're correct that Sentinel is considered a "passive" flea control product - it doesn't kill adult fleas, just keeps their eggs from being able to hatch. Capstar would be quite effective at killing any fleas that he currently has on him. It shouldn't be necessary to wash bedding, etc. since the Sentinel will ensure that the fleas are not able to reproduce. In my experience, some dogs do fine with Sentinel as their only flea control method if they are in an environment where they are rarely exposed to fleas. But if you're seeing fleas from time to time, or if your dog has flea allergies or other skin sensitivities, then I would recommend using an adulticide like Nexgard or Bravecto along with his Sentinel.
Updated on August 12th, 2025