NexGard Chewables for Dogs Review 2026: Pros, Cons & Verdict

Review Summary

Nexgard Chewables for dogs are one of the more convenient flea and tick options on the market today, as they allow you to protect your dog from parasites by simply giving them a delicious, beef-flavored tablet to munch on.

This makes them a good choice for owners who don’t trust collars but also don’t want to deal with messy topical solutions. Even though they’re extremely convenient, they’re also effective, as they can kill fleas and ticks with ease.

Nexgard Chewables aren’t perfect, however. They’re fairly expensive, and they won’t protect against mosquitoes, heartworms, and other parasites.

Overall, we’re big fans of Nexgard Chewables—read on to find out why.

Nexgard Chewables for Dogs — A Quick Look

Nexgard Chewables Are Easy to Administer

Giving your dog a flea and tick solution has never been a fun part of being a pet owner. Topical solutions are effective, but they can be messy and difficult to apply, especially if your dog isn’t keen on the idea. Collars, on the other hand, are easy to put on but offer limited effectiveness at preventing parasites.

Nexgard Chewables give you the best of both worlds. They’re completely mess-free (assuming your dog doesn’t leave a ton of crumbs behind), yet they also provide powerful protection against fleas and ticks. You can safeguard your pup for a month at a time simply by giving them a single chewable tablet.

The Formula Starts to Work Within 24 Hours

It doesn’t take long for the pesticide to enter your dog’s bloodstream and start taking out fleas and ticks. In fact, every single insect on your dog should be dead within 24 hours of ingesting the tablet.

The active ingredient, Afoxolaner, is a powerful nerve agent that causes paralysis in bugs. As soon as a flea or tick bites your pup, it gets a healthy dose of the insecticide, causing it to freeze up and eventually die.

It’s completely safe for your dog, but it will kill 99% of fleas and ticks.

Each Dose Lasts a Month

Each tablet will protect your dog for at least 30 days. Nexgard has consistently been shown to work for at least that long, but many users report their dogs stay protected for a good amount of time after the initial month has elapsed.

We don’t recommend missing a dose of your mutt’s flea and tick medication, but it’s nice to know that they won’t become a walking buffet if you do.

Nexgard Chewables Only Protect Against Fleas and Ticks

Fleas and ticks are the most common dog parasites, but they’re far from the only ones you have to worry about.

Mosquitoes are a big concern as well, as they can potentially transmit lethal heartworms. Mites, lice, and sarcoptic mange are also painful or annoying for your pup, and you should take care of them as soon as possible if your dog is afflicted.

Unfortunately, Nexgard Chewables won’t help you with any of that, so you’ll have to purchase additional treatments if you want your dog to be protected. These tablets kill fleas and ticks—and that’s it.

FAQ

Can I buy Nexgard Chewables over the counter?

No. These tablets are only available with a prescription, so you’ll need to talk to your vet before switching your dog over to this formula.

My dog’s weight fluctuates. Which size should I buy?

This call should be made by your vet. Luckily, you’ll need to talk to them before you buy this medication, anyway, so they can evaluate your dog to decide which weight range would be most effective for them.

Does this formula repel fleas and ticks?

No. There’s nothing in here that would keep insects from jumping onto your dog. In fact, it requires bugs to bite your pup in order to be effective.

The way it works is that a parasite hops on your dog and digs in for a nice meal. They then start feasting on your dog’s blood—which, unknown to them, is laced with poisonous insecticide. The bug is then paralyzed and falls off to die.

The medicine is extremely effective, but it does require letting bugs bite your dog, so there will be some initial discomfort.

Is Nexgard safe for cats?

The ingredients aren’t toxic for felines, but you should never give a cat a medicine designed for dogs. If you want to protect your kitty, you should find a product that’s specifically designed for them.

I can’t remember if I gave my dog their Nexgard this month. What should I do?

Nexgard Chewables are extremely safe, even at five times the recommended dosage. However, you should avoid double-dosing.

If you’re not sure whether your dog has been given their flea medication, it’s better to wait until the next scheduled dose. Luckily, Nexgard often works for longer than the indicated window, so your pet should be fine.

Who makes Nexgard and where is it produced?

Nexgard Chewables are made by Merial, which is based in the United States (Georgia, to be exact).

What the Users Say

We’ve thoroughly reviewed the clinical reports that show that Nexgard Chewables are safe and effective, but it’s always a good idea to find out what regular users have to say about a product. To that end, we investigated what pet owners have said about their experiences with this treatment.

Most users find that their dogs take the tablets easily, with little prodding necessary. This makes administering the treatment extremely convenient. Some, however, report that their dogs don’t care for the taste, so they have to disguise the pills under peanut butter or find another treatment entirely.

The reports generally agree that this medication is effective at killing fleas and ticks. Many pet owners complain that the treatment does nothing to stop the bugs from hopping onto their dogs in the first place; while the lack of a repellent is a concern, we feel that it’s unfair to penalize a medicine for not being able to do something it wasn’t designed for.

Getting your hands on a box is a bit of a hassle, which many people complained about. You have to set up a visit with your vet to get a prescription, and from there, you have to find a provider that’s timely and affordable. You may also need to set up subsequent vet visits in order to get refills in the future.

Many users say they use the stuff on an as-needed basis with little issue. We obviously don’t recommend this, but it’s good to know that it will be effective even if not used as directed.

Conclusion

Nexgard Chewables are an extremely convenient way to protect your pup from fleas and ticks, as all you have to do is convince them to scarf down a beef-flavored tablet.

If you can do that, your dog will enjoy a month’s worth of protection from parasites (but unfortunately, they won’t be safe from mosquitoes, mites, and other parasites). Nexgard Chewables are extremely potent and effective, even against large-scale infestations.

While the tablets are incredibly powerful, they’re also pricey and require a prescription, which is a bit of a hassle. We think it’s worth it, however, as this treatment is one of the best on the market today.