Dog on Sentinel has fleas. Can I add K9 Advantix for flea control?

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.

Hi and thanks for your post! Yes this is okay. Sentinel does not kill adult fleas, just the eggs. Sentinel also does not prevent ticks as you mentioned in your question. Advantix does, however. I hope this helps!

Hi and thanks for posting on Petco Pet Education Center, formerly Petcoach! Yes, there is no harm in using a a topical flea treatment along with sentinel. Advantage II, K9 Avdantix, or Frontline Plus or Gold for example would all be okay. I hope this helps!

Hello. I would stop the Cap Shield Plus because it contains lufernon & so does the Sentinel. Lufernon is useful for flea control, but does not kill adult fleas. You can use a similar product just called Capstar, & this can be used daily, if necessary to kill adult fleas. Or, you can administer it as needed if you see fleas. It is safe to give with the Sentinel. You can also use something else to kill your adult fleas & get ticks, such as Frontline Gold, Advantix or even a Seresto Collar to compliment the Sentinel. Thanks for using Petco Pet Education Center, formerly Petcoach.

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.

Hi there! Yes, Advantix would be a very reasonable choice to use along with Sentinel Spectrum. You could also use Nexgard or Bravecto for tick coverage, if you prefer an oral medication instead of topical.

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.