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At Petco, learn more about the benefits & differences of Interceptor & Interceptor Plus dewormer for dogs with heartworm, roundworms, hookworms & tapeworms.
Updated on October 23rd, 2025
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 23rd, 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 23rd, 2025
Learn about the benefits of fish oil for dogs. Order online from Petco and save with Autoship or Curbside Pickup.
Updated on October 23rd, 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 23rd, 2025
The main difference is that the Iverhart Max will control an additional intestinal parasite (tapeworms). Otherwise the medications will both protect against heartworms, roundworms, hookworms and are generally well tolerated. The Max product does contain an additional ingredient (to kill the tapeworms). Again, this ingredient is generally well tolerated but watch Benji after giving him the medication for any signs of GI upset. Thank you for your questions.
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.
Heartgard and interceptor are equal. It is personal preference for your dog and you. Heartgard is a larger, chunky chewable which some smaller dogs may not like to where interceptor is small pile that can be hidden in a treat and raiser to give pickier dogs. Bravecto is a better product as it is a pill form and last for 3 months but frontline is a topical that last for a single month
Fortunately, there are a number of heartworm preventatives similar to Heartgard, including TriHeart Plus and Iverhart. Other options for heartworm prevention have different active ingredients and include Trifexis, Interceptor, Sentinel, Revolution, and Advantage Multi. Simba's vet will be able to prescribe another option and make sure that Simba has had a recent heartworm test.
If you have proof that the dogs have a current negative heartworm test (current means a test within the last year) then you can get the product at any one of our VETCO vaccination clinics. If you do not have proof of a negative heartworm test, you can get the test done at the clinic and then you can buy the Interceptor (or any type of heartworm prevention). ( https://www.vetcoclinics.com/services-and-clinics/clinic-locations-and-schedules/?zip=95758 )