Heartgard

Interceptor vs. Heartgard: Guide to Heartworm & Worm Prevention

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

Interceptor vs. Interceptor Plus: Best Heartworm & Worm Med for Dogs

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

Selamectin for Dogs & Cats: Stop Fleas, Ticks & Heartworms

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

Heartworms in Dogs: Spot Symptoms & Prevent This Serious Threat

Do you have questions about heartworms in dogs? Petco has answers! Visit us to learn about heartworm causes, symptoms and treatment options

Updated on October 23rd, 2025

Unlock Optimal Health: Best Pet Supplements for Your Dog & Cat

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

Which heartworm medicine is best: Heartgard or Tri-Heart? CBD for dogs?

Your dog is so handsome! Both Heartgard Plus and Tri-Heart Plus protect against heart worms, but I personally like Heartgard Plus best. As of yet, we have very little research on CBD oil in veterinary patients, so we cannot make any recommendations one way or the other about this product - we do not know what an appropriate dose might be, and if there are any potential health concerns or drug interactions in dogs. In addition, because it's a schedule 1 drug, it's illegal for us to prescribe or recommend. I hope this helps!

What are good Heartguard alternatives for my dog's heartworm?

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.

Heartgard, Interceptor, Bravecto, Frontline: Which is best for my dog?

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

Where can I get affordable generic heartworm medicine for my dog?

Tri-Heart is generic Heartgard and is just as effective. I am not sure why your vet won't prescribe it for you. You cannot buy any heartworm prevention over the counter so you will need a prescription. I suggest you bring your dog to one of the VETCO vaccine clinics at your local Petco stores (see schedule below). Bring proof of his last negative heartworm test and they can give you a prescription for the Tri-Heart. There is no charge for the exam. Just the cost of the medication. Hope this helps! ( https://www.vetcoclinics.com/services-and-clinics/clinic-locations-and-schedules/?zip=77469 ) ( https://www.petco.com/shop/SearchDisplay?categoryId=&storeId=10151&catalogId=10051&langId=-1&sType=SimpleSearch&resultCatEntryType=2&showResultsPage=true&searchSource=Q&pageView=&beginIndex=0&pageSize=48&fromPageValue=search&searchTerm=triheart )

How to refill Heartgard Plus for my dog without a vet visit?

Heartgard plus is a prescription only medication, so you need to get a script from Akita's vet in order to get it. You can call and ask them to write a script for it if she's been seen by the vet within in the last year. Otherwise, you will have to make an appointment.