10 Best Dog Dewormers in 2018

Dogs have a habit of eating anything and everything – they also like to roll in things they shouldn’t. Unfortunately, this often means that your dog is eating things that aren’t good for him and rolling in things that can make him sick. He simply doesn’t know any better.

One of the most common ailments that dogs can pick up from eating or coming into contact with something outside is worms. The word “worms” is usually used to describe the kind of parasite that can infect your dog’s digestive tract.

There are five different types of worms known to affect dogs and parasite infections can cause some pretty nasty symptoms. If you’re concerned that your dog has worms, take him to the veterinarian to determine what kind then try one of our top-rated dog dewormers reviewed below to deal with the problem. You’ll find dewormers for all five types of worms as well as broad-spectrum treatments.

Here are our top 10 picks for the best Dog Dewormers:


#10 CatNDog Dogs Dewormer Tablets for Dogs

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If you’re looking for an inexpensive solution to all four types of intestinal parasites, CatNDog Dogs Dewormer Tablets for Dogs is a good option to consider. This quad dewormer is effective against hookworms, whipworms, tapeworms, and roundworms (ascarids), so you can be sure it will take care of your dog’s problem.

It comes in a bottle with five tablets which can be taken whole or crushed and mixed with your dog’s food. It is available without a prescription and is highly affordable. Plus, it comes with a money back guarantee so, if you’re not satisfied, you can return it. Just follow the dosing instructions according to your dog’s weight.

Pros: Effective against all four intestinal parasites, comes with 5 tablets, tablets can be taken whole or crushed, affordable, money-back guarantee

Cons: Dosing may not be exact, may cause mild side effects


#9 Excel Dog Roundworm Dewormer

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Some dogs simply don’t like taking tablets and crushing the pill to mix with his food may not work. If you’re having trouble getting your dog to take a dewormer, you may want to try a liquid product like this Excel Dog Roundworm Dewormer.

This liquid dewormer is safe and effective against both species of roundworms known to affect dogs and it is easy to administer. In addition to being easy to mix with your dog’s food, this liquid dewormer has a pleasant vanilla taste so he won’t even know that he’s taking medicine. Made with the active ingredient piperazine, this Excel Dog Roundworm Dewormer is a fast and effective way to rid your dog of worms.

Pros: Contains piperazine as the active ingredient, effective against two types of roundworm, liquid form is easy to administer, pleasant vanilla flavor

Cons: Dosing can be tricky to get exact, may cause mild side effects


#8 PetArmor Sure Shot 2x Liquid Wormer

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For dogs who have trouble taking tablets, you may want to try a liquid dewormer like PetArmor Sure Shot 2x Liquid Wormer. This dewormer is designed for puppies and dogs up to 120 pounds, so you don’t have to worry about buying a small- or large-breed formula.

It is made with the active ingredient pyrantel pamoate which is effective against both hookworms and large roundworms. This dewormer is FDA-approved for use in dogs and it is proven effective against two species of each type of worm. It safe for dogs of all breeds and sizes, even puppies as young as 2 weeks. In fact, you can use it every two weeks in puppies to protect them against re-infestation.

Pros: Effective against 4 strains of hookworm and roundworm, safe for all breeds and sizes, liquid form is easy to administer, pleasant flavor

Cons: Exact dosing may be tricky, may cause mild side effects, repeated doses may be needed


#7 Merck Panacur Canine Dewormer

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Made with the active ingredient fenbendazole, this Merck Panacur Canine Dewormer is effective against several types of worms which makes it a great option if you aren’t sure which type your dog has. It works against 2 species each of hookworms and roundworms as well as one species each of tapeworm and whipworm.

This formula comes in an easy to administer powder form so you can mix it with your dog’s food to make it more palatable. It comes in 1g, 2g, and 4g powder packets, so you can choose the one that best suits your dog’s needs. Simply follow the easy instructions on the package and give the proper dose according to your dog’s weight. Treatment can be repeated daily as long as needed until your dog’s infestation is taken care of.

Pros: Kills two species of roundworms and hookworms, kills whipworms and tapeworms, easy to mix powder formula, contains fenbendazole as the active ingredient, safe on puppies as young as 6 weeks

Cons: Somewhat expensive, not for puppies under 6 weeks, some risk for adverse reaction


#6 Bayer Quad Dewormer for Dogs

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If you aren’t sure what type of intestinal parasite your dog has, or if he has multiple types of worms, a broad-spectrum dewormer might be the best option. In this case, try Bayer Quad Dewormer for Dogs. This dewormer is safe for puppies and dogs as small as 2 pounds and there are three different formulations for dogs 2 to 25 pounds, 26 to 60 pounds, and 45 pounds and greater.

This product is made with the active ingredients praziquantel, pyrantel pamoate, and febantel, all of which are FDA-approved and proven effective against worms in dogs. Bayer Quad Dewormer for Dogs comes in tablet form so you can administer it whole or crush it up and add it to your dog’s food. In testing, this product has been shown to produce results in as little as 8 hours.

Pros: Effective against four type of worms, made with three active ingredients, easy to administer chewable tablets, tablets can be crushed and added to food, three formulas for dogs of different sizes

Cons: Separate formulas for dogs of different size, may cause mild side effects, dosing instructions could be clearer


#5 Durvet Triple Wormer Broad Spectrum Dewormer

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Available in two formulations for small dogs as well as medium and large dogs, Durvet Triple Wormer Broad Spectrum Dewormer is a broad-spectrum product effective against three types of worms in dogs – hookworms, roundworms, and tapeworms. It comes in an easy to administer chewable tablet which you can also crush and add to your dog’s food if he doesn’t take pills well.

This dewormer is a very affordable option compared to other products on the market but it is just as effective, made with the active ingredients pyrantel pamoate and praziquantel. Durvet Triple Wormer Broad Spectrum Dewormer comes in a 12-pack of tablets so, depending how large your dog is, the packet may last for several treatments.

Pros: Effective against three types of worms, made with active ingredients pyrantel pamoate and praziquantel, two formulations for dogs of different sizes, affordable price, easy to administer tablets

Cons: Not for puppies under 6 pounds, multiple treatments may require a second pack, risk for mild side effects


#4 Pfizer Nemex 2 Canine Anthelmintic Suspension

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If you’re looking for something that is quick and effective against roundworms and hookworms, Pfizer Nemex 2 Canine Anthelmintic Suspension is a great option. This product is made with the active ingredient pyrantel pamoate, so it is effective against two species of each worm – it is not, however, effective against tapeworms or whipworms.

This Pfizer Nemex 2 Canine Anthelmintic Suspension comes in a liquid form that is very easy to administer and it is highly palatable to dogs. You can administer it directly or add it to his food. You’ll also be glad to know that it is safe for puppies as young as 2 weeks.

Pros: Effective against two species of roundworms and hookworms, made with active ingredient pyrantel pamoate, easy to administer liquid form, highly palatable, safe for puppies as young as 2 weeks

Cons: Repeated doses may be necessary to prevent reinfestation, mild risk for side effects


#3 Sentry 7-Way Dewormer for Dogs

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When you want to make sure all of your bases are covered in terms of killing intestinal parasites, a broad-spectrum dewormer is the way to go. This Sentry 7-Way Dewormer for Dogs is a 7-way dewormer that is effective against two species of tapeworm, two species of roundworm, and three species of hookworms. It is safe for use in both dogs and puppies as small as 6 pounds, though there is also a formulation for large breeds.

Sentry 7-Way Dewormer for Dogs is made with the active ingredients pyrantel pamoate and praziquantel, so it provides a fast and effective solution for intestinal parasites. It comes in tablet form, so you can feed the tablet to your dog whole or crush it up and add it to his food. Dosing instructions are simple to follow and the risk for side effects is low.

Pros: Made with the active ingredients pyrantel pamoate and praziquantel, effective against 7 species of worms, easy to administer tablet, safe for puppies as small as 6 pounds

Cons: Not for puppies or dogs under 6 pounds, no intermediate dosing, low risk for side effects


#2 Bayer Tapeworm Dewormer

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Many dog dewormers are effective against hookworms and roundworms but if your dog has tapeworms, you’ll need to buy a different product like Bayer Tapeworm Dewormer. This tapeworm dewormer is safe for dogs as young as 4 weeks and it comes in an easy to administer tablet form that can be fed whole or crushed and added to your dog’s food.

This tapeworm dewormer is made with the active ingredient praziquantel and each tablet contains 34mg of the active ingredient. Bayer Tapeworm Dewormer comes in a pack of 5 tablets, so you may be able to get multiple doses if needed. There is a low risk for side effects, but they are generally mild and temporary.

Pros: Contains the active ingredient praziquantel, easy to administer tablet, safe for dogs over 4 weeks, low risk for side effects, effective against all types of tapeworm

Cons: Some risk for side effects, not for puppies under 4 weeks


#1 Safe-Guard 8-in-1 Dewormer for Dogs

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While there are many broad spectrum dewormers on the market, many of them do not treat all four types of intestinal parasite – many of them only treat three. If you’re looking for a product that works against all types of worms in dogs, try Safe-Guard 8-in-1 Dewormer for Dogs. This 8-in-1 dewormer works against 6 species of worm – one species of tapeworm, two species of hookworms, two species of roundworms, and one species of whipworm.

In addition to being effective against four types of worms, Safe-Guard 8-in-1 Dewormer for Dogs is also very easy to administer. It comes in powder packs that are easy to administer according to your dog’s weight. Each package contains six grams so, depending on your dog’s size, you may get several doses out of a single package. Simply take the powder pack and sprinkle it on your dog’s food to administer it. Most dogs don’t find the product unpalatable and the risk for side effects is very low.

Pros: Works against 4 types of worms, made with the active ingredient fenbendazole, easy to administer powder packs, fast and effective formula, safe for puppies over 6 weeks of age

Cons: Some risk for adverse reactions, not for dogs under 10 pounds


The word “worm” alone is enough to make your skin crawl, so try not to think about all those tiny worms filling your dog’s digestive tract. As unpleasant as it may be to even think about worms inside your dog, it is not a problem you can just ignore – it needs to be treated.

Before you can treat your dog’s parasite infection, you need to know what kind of worms he has. The best way to find out is to take him to the vet and have him tested. From there, your veterinarian will recommend a course of treatment.

Keep reading to learn about the different types of worms in dogs, how dogs get worms, and how you can treat your dog for worms and prevent him from getting them again.

What Types of Worms Affect Dogs?

There are five different types of worms known to affect dogs and all of them are parasites that can spread quickly inside his system. Parasites come in a variety of different forms, but most of those that affect dogs are intestinal parasites – heartworms are the only exception. Here are the five different types of worms known to affect dogs:

Roundworms – These are the most common intestinal parasite seen in dogs and there are two kinds, one more common in puppies.

Tapeworms – Dogs often get this type of intestinal parasite by eating flies or wild animals that have been infested with tapeworms or fleas that carry them.

Whipworms – This type of worm lives in the cecum and passes its eggs in the dog’s feces – the eggs can survive for up to 5 years in the right environment.

Hookworms – These worms can cause anemia in dogs which can be very dangerous, even fatal, in puppies if left untreated.

Heartworms – Transmitted by mosquitoes, heartworms are an extremely dangerous but preventable parasite that grow and multiply in the dog’s heart.

When your dog has a parasite infection, he won’t always show outward symptoms. In some cases, the only sign you’ll see is eggs or segments passed in his stool. It is your job as a dog owner to pay attention to your dog’s condition so you can catch the early warning signs of a problem.

How Do Dogs Get Worms?

Dogs can get different worms in different ways. For roundworms, many puppies are born with them or adult dogs can get them through contact with an intermediate host like birds or rodents. Tapeworms are usually transmitted through ingesting an infected insect and hookworms come from ingesting the larvae from the dog’s environment (usually outdoors).

Your dog can get whipworms by swallowing the eggs in soil or contaminated feces and heartworms come from mosquitos that are carrying the eggs and transmit it to the dog by biting him. Not all worm infections show outward symptoms or, if they do, not until the infestation has spread to a significant degree.

Here are some of the signs of worms in dogs:

• Diarrhea
• Abdomnia pain
• Bloody stool
• Vomiting

• Weight loss
• Poor coat condition
• Pot belly

These are the primary symptoms of intestinal parasite infections. In puppies, some worms may also cause severe anemia, poor growth, and even death. Heartworms are an entirely different type of worm because they don’t infest the digestive system – they grow in the heart. Symptoms of heartworms are primarily respiratory, including things like coughing, weak pulse, low exercise tolerance, and weight loss.

In addition to these symptoms, you may actually see worms in your dog’s stool or coming out of his anus. Hookworms and whipworms are usually too small to notice in the stool, but if your dog has a tapeworm you’ll find segments in his feces. To help diagnose your dog with worms, and to determine which type he has, your veterinarian will need a stool sample.

How Do You Treat a Dog for Worms?

The best way to treat your dog for worms is to choose a dog dewormer designed to kill the type of parasite he has. As you’ve already learned, there are five different types of worms known to affect dogs, so choose a dewormer that contains ingredients specifically chosen to kill the type infecting your dog. You may also use a broad-spectrum dewormer as long as it is effective against the type of worm your dog has. If you aren’t sure, ask your veterinarian for a recommendation.

In addition to using a dog dewormer, there are certain foods you can feed your dog to help rebuild his immune system and repair his digestion. Fermented foods like fermented vegetables and kefir are a great option, as are fresh grated veggies, ground pumpkin seeds, pineapple, garlic, apple cider vinegar, coconut oil, and parsley.

When treating your dog for worms, you need to be very careful because they can be transmitted to humans and sometimes the effects are very serious. For example, if hookworm larvae penetrate human skin, they can cause serious inflammation called cutaneous larval migrans which can be scarring.

Roundworms eggs, if swallowed by a human, can lead to a condition known as visceral larval migrans in which the worms migrate through the walls of the intestines and into the body. Children are particularly at-risk for transmitting intestinal parasites from dogs, so keep your kids away from animal feces because it could be infected with parasites.

Once you’ve gone through the trouble of treating your dog for worms, you want to make sure that he isn’t going to get them again. Fortunately, parasite infections are completely preventable, and prevention is easier than you might imagine. All you need is a monthly parasite preventive as recommended by your veterinarian. You should also keep your dog away from wild animals and their feces – you should also clean up after your dog when he is outside to avoid accidental spread of worms.

Now that you know everything you need to know about worms in dogs, you’re ready to start treatment. Talk to your veterinarian to receive a correct diagnosis for the type of worm infecting your dog then choose the appropriate dog dewormer from the reviews above.

Remember, different worms respond to different active ingredients, so be sure you choose a product that is proven effective for the type of worm your dog has. You can also try a broad-spectrum formula but, if you know the specific type of worm, it may be worth it to just buy a species-specific dewormer just to be sure it works. Good luck!

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