Best Dog Dewormers – Over the Counter Dewormers To Help Your Dog Feel His Best [2020 Update]

Worms. Just the thought of it would make anyone squirm, especially dog owners. After all, it’s a common issue with many pets, no matter how well cared your pet is. Not only are they harmful to your dog, but these parasites can also be passed along to other dogs and even humans.

If you suspect that parasites have wormed their way into your dog, it’s important to treat it right away. There are different types of dog dewormers available. And not all of them can be used to effectively deworm your canine. No worries though because we’ve got just the list for you – the best dog dewormers you can get in the market.

Top 9 Dog Dewormers Of 2020 Reviewed

1. 8in1 Safeguard 4 Canine Dewormer

Best Dog Dewormer For All Worms

The Safeguard 4 Canine De-Wormer is an effective treatment for tapeworms, roundworms, hookworms, and whipworms. This dog dewormer comes in powder form which makes it easy to mix in with your dog’s food if you serve him wet food. You can feed it to puppies over six weeks old, pregnant dogs, heartworm-infected dogs, and any dog weighing up to 40 lbs.

You can double the dosage (measurements are included in the package) if your dog is heavier than 40 lbs. However, it doesn’t mix well with dry food. Also, some dogs dislike the flavor (or the lack of one). And you need to administer this for 3 consecutive days.

8in1 Safeguard 4 Canine Dewormer


  • Broad-spectrum dewormer
  • Safe for most dogs, even puppies 6 weeks old
  • Affordable


  • Powder form; hard to mix with dry food
  • Some dogs dislike the flavor
  • Need to administer 3 consecutive days

2. Panacur C Canine Dewormer

Best Dog Wormer For Tapeworms

This canine dewormer from Panacur contains Fenbendazole which is an effective treatment for hookworms, roundworms, tapeworms, and whipworms. It is in powder form and comes in 1gm, 2gm, and 4gm packets. Like the Safeguard, it does require you to administer the treatment for 3 consecutive days. However, it does not mix well with dry food. Your dog may dislike the flavor so administering this more than once may be difficult.

Panacur C Canine Dewormer


  • Very effective broad-spectrum dewormer
  • Affordable
  • Recommended by vets


  • 3-day treatment
  • Does not mix well with dry food
  • Some dogs really dislike the taste

3. Generic Pyrantel Pamoate

Best Dewormer for Puppies

If you have more than one dog in the house that you want to treat or you seem to be deworming your dogs frequently, you can get the Generic Pyrantel Pamoate. This dewormer is great at eliminating roundworms and hookworms. This liquid treatment is vanilla flavored to make it easier to administer. However, this does not work for whipworms and tapeworms. And you need to repeat the dose every 2 to 3 weeks.

 Generic Pyrantel Pamoate


  • Affordable
  • Great for multiple pets
  • Vanilla-flavored


  • Not a broad-spectrum dewormer
  • Needs to be administered every 2 to 3 weeks

4. Durvet 12-Pack Triple Wormer Tablets

Best Dewormer for Puppies

This chewable tablet from Durvet is a treatment for hookworms, tapeworms, and roundworms in dogs and puppies greater than 25 lbs. While expensive as a whole, the pack contains 12 tablets which means you can keep some in store for the next time your canine gets worms. Dogs seem to not mind the flavor of the tablets. However, this dewormer doesn’t treat whipworms and it’s not to be used for puppies younger than 12 weeks old.

Durvet 12-Pack Triple Wormer Tablets


  • 12 tablets in one pack
  • Palatable flavor
  • Medium to large dogs


  • Not for puppies less than 12 weeks old
  • Doesn’t treat whipworms
  • Expensive

5. Pfizer Nemex-2 Liquid Dewormer

Best Dog Dewormer For Puppies

The Pfizer Nemex-2 is a liquid dewormer that can be used for dogs and puppies at least 2 weeks old. It removes large roundworms and hookworms. The best thing about this dewormer is that it is pretty easy to administer and dogs seem to love the taste. Plus, you only need to give it once. However, it can’t be used for whipworms and other types of worms and is quite expensive.

Pfizer Nemex-2 Liquid Dewormer


  • Easy to administer
  • Only needs one dose of treatment
  • Dogs love the taste


  • Does not treat all types of worms
  • Expensive

6. Sentry HC WormX Plus Dog Dewormer

Best Dog Dewormer For Roundworms

The Sentry HC WormX Plus Dog Dewormer treats tapeworms, roundworms, and hookworms in dogs and puppies greater than 25 lbs and over 12 weeks old. The dewormer is a chewable tablet. It comes in two flavors which makes things even easier. And it works pretty fast – within the first 24 hours after taking the tablet. However, it has not been tested as safe for breeding or pregnant dogs. It does not treat whipworms. And you can’t use it for puppies younger than 12 weeks.

Sentry HC WormX Plus Dog Dewormer


  • Tablet form
  • Has 2 flavors
  • Fast-acting (within 24 hours)


  • Not for puppies younger than 12 weeks
  • Does not treat whipworms
  • Not safe for pregnant dogs

7. Petford Dewormer for Dogs & Cats

Best Dewormer for Puppies

This is the best dewormer for puppies, given that it has a 100 percent natural formula. It is strong enough to get rid of hookworms, roundworms, and tapeworms without leaving behind any traces of their existence. That’s because it removes even the eggs. Thanks to the liquid consistency, this product is quickly absorbed by the animal. You can use it on cats and dogs of all sizes without fearing that they might get re-infected.

One of the best features of this formulation is how easy it is to administer. It is made using a liquid formula. Simply put a few drops in the dog’s mouth or food before it eats it. It takes is flavor from the predominantly natural ingredients used to make it. The formula consists of pumpkin seeds, clove bud, wormwood, marshmallow root, and black walnut.

Dewоrmer for Dogs & Cats


  • Made from all-natural ingredients
  • A liquid dewormer that is easy to administer
  • Gets rid of three worms


  • May remove worms gradually
  • It is a costly dewormer
  • Some users reported signs of worms weeks later

8. PetArmor Sure Shot 2X Liquid De-wormer

Best Dewormer for Puppies

The PetArmor Sure Shot 2X Dewormer is a liquid dewormer that can treat two species of hookworms and 2 species of roundworms. Not only that, it can help prevent the reinfestation of large roundworms. You can use it for dogs of any size as well as for puppies at least 2 weeks old. However, this will not kill tapeworms or whipworms. Some dogs hate the taste and smell.

PetArmor Sure Shot 2X Liquid De-wormer


  • Easy to administer
  • Prevents reinfestation of large roundworms
  • Can be used for puppies at least 2 weeks old


  • Bad taste
  • Not for treating tapeworms and whipworms

9. Triple Wormer Broad Spectrum Dewormer.

Best Dewormer for Puppies

In order to rid your pets of worms completely, you need a dewormer that can kill most of the pesky worms. To achieve that you should try the best broad-spectrum dewormer. It is called the Triple Wormer Broad Spectrum Dewormer. Unlike other dewormers, which are available in liquid form, this particular product comes in the form of chewable tablets. You can add it to your pet’s food as an easy way of administering it.

But why is it referred to as a broad-spectrum dewormer? It can get rid of up to 7 strains of tapeworm. That is in addition to hookworms and roundworms. With that, it is capable of leaving your pets completely worm-free. This dewormer is recommended for puppies weighing between 6 pounds and 25 pounds. Each pack contains two tablets – enough to completely deworm your dog.

Triple Wormer Broad Spectrum De-Wormer


  • Available in the form of chewable tablets
  • Can remove most worms
  • Great for puppies and small dogs


  • Reports of it not killing tapeworms
  • May not work in big dogs
  • Unclear administration instructions

Choosing The Best Dog Dewormer – The Ultimate Buying Guide

Parasites will worm their way into your dog at any point in time. If you suspect that your canine has worms, then you’ll need to administer the treatment as soon as possible. After all, your dog can easily pass on his worms to other pets and family members. While a visit to your vet is important, there are plenty of over-the-counter medications that you can use if you don’t have the time, money, or capability to bring your dog to his doctor.

The question is, which dewormer will work best for your dog? This in-depth guide on dog dewormers should help you understand how to find the dewormer that would eliminate the worms currently residing in your canine.

Does My Dog Need A Dewormer?

You canine friends need a lot of care, from feeding to training to treatments. But you may ask, how do I know my pet has worms? Well, you need to check to see if your dog is exhibiting symptoms.

Visible Worms and/or Eggs

The most obvious symptom of worms is when you see worms or eggs in your dog’s feces, vomit, or fur. Worms may appear as little grains of rice or seeds because they’ve died and then dried out. Live ones may appear as small movements in his fur or feces.

Incessant Scratching

If your dog never seems to stop scratching or rubbing his rear on the floor or your furniture, chances are he may have worms.

Bloated Tummy

Bloated stomachs may be an indication of worms in your puppy. Your puppy can be born with worms if his mother has worms.

Change in Appetite

Intestinal worms eat the same food that your dog does so your dog may end up eating more than his normal amount to make up for the food eaten by parasites. On the other end of the spectrum, some infected dogs lose their appetite.

Weight Loss

Tapeworms feed off your dog’s nutrition which can lead him to feel weak. Even if he eats his normal amount of food, if your dog is showing rapid weight loss, it may be that he has a tapeworm or whipworm using up the nutrition in his body and food.

Other symptoms include:

  • Vomiting
  • Bloody stool or diarrhea
  • Dull Coat
  • Signs of skin irritation

What types of Worms are there?

There are four common types of worms found in dogs. It is important that you find out which one is in your dog so that you can administer the correct medication.


These worms hook to your dog’s intestinal walls and can cause bloody stool. Because these are often too small to be visible, you’ll need to get a sample of the stool to your vet so he can examine it under a microscope.


These worms which look like noodles can live in your dog’s intestines for a long time, growing up to six inches long. Roundworms can cause stomach bloating.


These worms live in your dog’s large intestine. They are thin, thread-like worms that are very hard to detect in feces. They can cause blood-tinged stools, diarrhea, and weight loss.


These parasites can be found in the tissue and intestines of your dog. The most common cause for this type of infection is when your dog ingests an infected flea or infected wild prey such as rodents and rabbits.

How do I Find the Right Dewormer?

You’ll first need to confirm the worm. As we’ve mentioned, dewormers treat a variety of parasites. Some are broad-spectrum because they can treat a wide range of worms while others are very worm-specific – treating only one or two types of parasites.

Pyrantel Pamoate

There are several types of ingredients used in a dog dewormer. Pyrantel pamoate is commonly used to eliminate hookworms and roundworms. This ingredient is not effective in treating tapeworms, whipworms, or other types of intestinal parasites. The Generic Pyrantel Pamoate is a non-branded medication that contains this as its active ingredient.


Praziquantel is another medication used in dog dewormers. This one is specifically used to target tapeworms in pets. The Sentry HC WormX Plus Dog Dewormer, for example, contains pyrantel pamoate and praziquantel. Febantel and oxantel are other ingredients found in dewormers. These are used to treat whipworms. Fenbendazole is a broad-spectrum medication that can be used against giardia, roundworms, tapeworms, hookworms, and whipworms. Our number one pick, 8in1 Safeguard 4 Canine Dewormer, uses fenbendazole as its active ingredient.

Aside from checking what type of intestinal parasites are targeted by the dewormer, you also need to consider your dog’s age and size. Some dewormers like Panacur C Canine Dewormer are safe for puppies as old as six weeks as well as pregnant dogs. Some dewormers are designed specifically for large dogs such as Bayer Animal Health Quad Dewormer. If you have a puppy, the Pfizer Nemex-2 Liquid Dewormer is one of the few that are safe for puppies as young as 2 weeks old.

Any Other Factors I Should Consider?

Dewormers not only differ based on the type of intestinal parasites they treat, but they also differ in how they are administered. Some dewormers like the Panacur C Canine Dewormer are in powder form and require you to administer the medicine for 3 consecutive days. Others are in chewable tablet form like the Durvet 12-Pack Triple Wormer Tablets and only needs to be administered once.

However, the number of tablets you feed your dog may differ, depending on his weight. There are also liquid dewormers like the PetArmor Sure Shot 2X Liquid De-wormer which are also fast-acting and only require one dose. Take note that you’ll more than likely need to give your dog another dose of medication a few weeks after the first one to make sure that any worm eggs that hatched and matured are also eliminated.


One of the worst causes of poor health in dogs is the presence of worms in the body. With the right dewormer, you should be able to treat your dog and get rid of all worms.

However, dewormers are designed to work on specific dogs. For example, some dewormers are meant for a wide range of dogs while others and for a specific size and weight. Check that the product you are buying is what your dog needs. You can use the reviews above and the buying guide as a point of reference.