NexGard Plus Dog Dewormers & Worm Medicine

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

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

Dog Intestinal Parasites: Identify, Prevent & Treat Common Worms

Learn about effective steps to prevent parasites in dogs hat can cause dog heartworm, Lyme disease and more.

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

Stop Fleas, Ticks & Mosquitoes: Pet Pest Prevention for a Healthy Pet

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 23rd, 2025

Where can I get affordable Nexgard for my dog's prescription?

You can find this product at any of the online veterinary pharmacies. In order to find the best value I would recommend going on goodrx.com. On this website you will be able to type in the medication and dose and it will provide you with coupon codes and the location of where you need to obtain the product. Regardless of what site you use you will still need to obtain a prescription from your veterinarian. I always caution my clients when they are planning to purchase these types of products from pharmacies of unknown origin as we cannot be certain how the drugs are being stored and what source they are obtaining the drugs from. Do your due diligence before deciding on which place to use. I have had relatively good experiences with Valley Vet Supply.

Does NexGard chewable prevent heartworm, or just fleas and ticks?

NexGard does not prevent heartworms but does prevent fleas and ticks. I use it on my own dogs and have been very happy with the product. Advantix or Frontline are also good products so you should use whatever you prefer.

My dog reacts to NexGard & Advantix. What are safe alternatives?

You have a few options. If you want an all in one product, try Trifexis. Otherwise you will two separate products. You might try Simparica (fleas/ticks) and Interceptor (heartworm/intestinal worms). I also recommend to have Sparky's stool checked for worms in case that was a round worm. For that parasite, pets are often given bolus dewormings since people can get that worm. That will clear up the infection faster.

When to start puppy heartworm, flea, tick meds & stop dewormer?

Hi, thanks for using Boop by Petco! We don’t start heartworm and flea/tick prevention until around 8 week of age. Nexgard is the only oral flea and tick preventative approved in the US for 6 months or younger. I would continue the Nemex every 2 weeks until they start heartworm prevention. I hope this helps!

What's the best flea, deer tick, heartworm for dogs, cats, and kids?

Great question! Nexgard kills the deer tick as well as fleas and American dog tick/rocky mountain tick, and lone star tick. It is an oral pill as well, so I would us that for your dogs. Because Nexgard doesn't protect again heartworms, you will have to give your dogs Heartgard as well, which is available by prescription only from the vet. Advantix is a spot on treatment that treats the same things as Nexgard, but you would also have to use Heartgard as well for the heartworms. These two medications (Nexgard and Advantix) are for dogs only. As for the cats, Simparica prevents five types of ticks, so this may work for your cats :-)