The Best Dog Dewormers For Large Breed Dogs

The Best Dog Dewormers For Large Breed Dogs

While it's not one of the most pleasant aspects of owning a dog, the fact remains that dogs can easily pick up parasitic worms from their everyday environment.

These worms can often begin to grow and multiply inside your dog, sometimes in its gut or lung, which causes a range of symptoms including sickness, right through to a weakened immune system and in the worst-case scenario, death.

It is recommended that you carry out a deworming treatment every 6 months as a preventative measure. However, in the first instance, upon noticing your dog has become infected, you should consult a vet.

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Then, you should also make sure you keep a dog worming treatment in your home, so you can relieve the discomfort and potentially prevent the situation from getting worse. Symptoms to look for include poor appetite, breathing difficulties, sickness, diarrhea, weight loss and unusual tiredness.

Like most infections, unfortunately, there is not just one solution. There are different kinds of dog worms including tapeworms (which are usually carried by fleas), roundworms (which can also infect people, especially young children), as well as lungworms, which are carried by slugs and snails.

Some treatments will clearly state they are for all forms of worms, whereas others may only treat a specific type of infection. You will also need to read the label to ensure what age and size of dog the treatment is suitable for, as some may only be for smaller dogs or puppies, and others for larger breeds.

Pills for dog deworming.

Treatments may also be intended to be used on a regular basis to be effective, whereas others may be intended for when an infection has already taken hold.

Different treatments may also take different forms such as chewable tablets that can be hidden in food or regular tablets that can be crushed into food instead. You may also find treatments in the form of powder sachets that need to be sprinkled over each meal.

Be aware that with these type of treatments, it's important your dog is not put off by any taste or texture difference so that they actually eat all of the product to receive the medicinal benefits.

While powder forms might seem convenient and work out cheaper in the long run, you should also be aware that unless your dog eats all of the food in its entirety, then it might not get the whole, correct dosage.

You should also research beforehand if the treatment is likely to give your dog any side effects, especially vomiting and further digestive issues.

Some de-worming treatments can contain formulas which could make your dog increasingly unwell, so the best advice is to consult your vet if you are concerned by their original symptoms or how they have reacted to the treatment you have tried so far.

8 In 1 Safe Guard Canine Dewormer

This product is a powder which you sprinkle over your dog’s food 3 times daily. On the one hand, this makes it easy to deliver to the dog, however it depends how your dog reacts to it.

As it's a powder and covers all the food, if your dog first tastes the powder and decides it doesn't like it, then it could reject the whole food, meaning they will not get the benefits and you'll have to try another product.

Not exactly ideal in the middle of an infection, so you might want to try this out during the 6-month deworming process that this product recommends.

If your dog doesn't reject the powder mixed in with their food, then it actually does deliver protection and treatment against a multitude of different worms including tapeworms, roundworms, hookworms, and whipworms.

The dosage depends on the size of your dog, and there is a size guide on the back to instruct you so you give your dog the right amount.

The box is also available in 3 different sizes, which is ideal if you own more than one dog or if you are in the middle of an infection.

8in1 Safe Guard Canine Dewormer


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The 8 in 1 dewormer is also a very good value compared to other brands which are upwards of 6 times the cost for their deworming treatments. On the other hand, some owners have reported back that due to the low cost, it is not effective and did not cure their dog.

Despite it being a best-selling product, it may not be the best treatment out there, which is why it's always advisable to try this as part of your regular dog health and grooming routine to see how your dog gets on with it, rather than jumping in at the time of an infection.


  • Provides effective treatment against tapeworms, roundworms, hookworms, and whipworms
  • Sachet form to be taken 3 times daily
  • Suitable for young puppies over the age of 6 weeks, pregnant dogs, and heartworm-infected dogs


  • Treats some of the most common dog worm infection
  • Available in 3 different sizes depending on the size of your dog
  • Easy-to-feed granules that mix into food


  • May require a separate preventative treatment
  • Small percentage of dogs suffered vomiting as a result of using the product in trials


Although this is a popular product that can be administered 3 times daily, it has mixed reviews when it comes to how the dog reacts to the taste of their food, and also how effective it is at actually treating worms. The company also suggests adding water to aid in the mixing, especially if you use dry dog food.

Some dogs reacted very well to this product and it quickly cleared up all their worm issues, where as other owners reported side effects and a general lack of improvement so moved on to other treatment.

It is much more affordable than other worm treatments so shouldn't be ruled out altogether, although should probably be tested out first during your dog’s recommended 6 month deworming process, as from those who have tried this so far, the results seem pretty inconclusive.

Merck Animal Health Panacur C Canine DeWormer

Panacur C is another brand who offer relief from hookworms, roundworms, tapeworms, and whipworms, which are some of the most common types your dog is likely to suffer from as well as giardia which is a nasty intestinal infection.

Like other brands of this nature, it also follows a powder form to be administered over your dog’s food. The powder contains a key ingredient called fenbendazole, which kills parasites by binding to parasitic protein, which damages the cell structure of the parasite causing it to die off.

Therefore, if used correctly at the right dosage it will rid your dog of any of the parasites listed on the box.

Each packet treats 40 lbs. and needs to be given once a day for 3 consecutive days. There are also other packets available if your dog’s size falls outside of this category, though keep in mind this particular size is one use per dog, and not for multiple treatments (such as once every six months as recommended) or if you own more than one dog.

Merck Animal Health Panacur C Canine De-Wormer


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Therefore, you may require more than one packet a time which will ramp up the costs in the long run.

Overall the Panacur C has a good reputation among owners, and is also commonly recommended by vets. Only a small percentage (1%) of dogs tested had adverse reactions such as vomiting or stomach upset.

However, the majority of owners across a large variety of breeds reported this product was quick to bring everything under control, and most reported a very satisfactory experience, especially in terms of getting their dog back to normal and out of discomfort.


  • Treats hookworms, roundworms, tapeworms, and whipworms
  • Available as 1Gm, 2Gm and 4Gm powder packets
  • Safe for dogs older than 6 weeks


  • Can be mixed in with a dog’s regular food

Can be mixed in with a dog’s regular food


  • Need to ensure dogs will not be put off by the taste as it coats their food


Panacur C has your dog covered when it comes to deworming, and best of all, this product is reasonably priced too. Perhaps one of the best features with this product is the addition of fenbendazole, which kills a number of parasites that your dog is most likely to be infected by.

Though, similar to other powdered forms of deworming treatments, you will need to ensure your dog eats all of the food it is sprinkled over for it to be effective, which can be much more troublesome compared to tablet or capsule form where the full dose is administered in one go.

Durvet Triple Medium And Large Dog Wormer

The Durvet triple wormer doesn't kid around when it comes to deworming; in fact, it's capable of treating the following infections: roundworms (Toxocara canis, Toxascaris leonina), hookworms (Ancylostoma caninum, Ancylostoma braziliense, Uncinaria stenocephala) and tapeworms (Dipylidium caninum, Taenia pisiformis) in dogs as well as puppies.

Durvet Triple Medium and Large Dog Wormer


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If you buy the smaller pack at two doses, be aware that one dose is actually both pills taken in stages; therefore, if you own multiple dogs or require tablets for a longer length of time (given you will need to deworm each dog you own every 6 months), then you may have to buy the larger 12-dose pack.

As this product is only available in 2 or 12 doses, it may work out considerably more expensive, especially if you own more than one dog.

Remember, each dog will need to be dosed at a separate time also (around two weeks apart).

The first dose of this product will only kill the adult parasites, which is why the second dose is equally as important as this will kill the more immature parasites.

If you don't follow up with the second dose, you may have to repeat the whole process again, which could be a costly affair not to mention putting your dog’s health at risk.

While this treatment is only recommended for medium and larger dogs, Durvet states they make a different treatment that is suitable for puppies. While this may seem like an inconvenience, it's important to administer the right dosage to each size dog you own.

Overall as a deworming treatment, if followed correctly, it is excellent at killing a wide range of parasites that could make your dog very sick if left untreated. It also has not had the same reports of making the dog unwell with digestive issues as other deworming treatments have.


  • Works on 7 different types of tapeworms
  • Chewable tablet form
  • Available in 2 or 12 doses per pack


  • Chewable tablet is much easier to hide in dog’s food
  • Tablet form also ensures full, correct dose is given


  • For medium and large dogs only
  • Expensive if you require more than 2 doses
  • Needs to be followed exactly or will have to repeat process


While this treatment from Durvet could work out to be a costly affair, especially if you own more than one dog, it's an easy way to administer the treatment to your dog. Instead of sprinkling a powder over their food, you simply give them 1 tablet which also ensures all of the dosage is received.

It's a powerful treatment against 7 different types of worms, all of which could cause serious harm and distress to your dog. It does this without the nasty side effects seen in some powdered treatment versions, and overall, has a very high positive feedback rating from owners.

The tablets are good for 2 years from purchase, which is re-assuring if you are buying in bulk with the intention to treat every 6 months as is recommended, or if you have more than one dog to treat.

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