Best Flea And Tick For Large Dogs (2025 Update)

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If you’re looking for the best flea and tick prevention for your large dog, you’re not alone. Fleas and ticks are a common problem that every dog owner worries about. Not only are they a huge annoyance, but they can also cause serious health issues for your furry friend. Therefore, it’s essential to invest in the right product to ensure your dog is protected.

Before buying any flea and tick prevention products, there are some factors to consider. Firstly, check the active ingredients used to make the product. Some may contain harsh chemicals that could cause adverse reactions in some dogs. It’s always best to research the ingredients and consult with your vet to ensure your dog can tolerate them. Secondly, choose the product based on your dog's size and weight as products designed for small dogs may not be effective for larger breeds. Lastly, choose a product that will provide long-term protection and is easy to use.

Are you tired of constantly fighting fleas and ticks on your large dog? Do you want to keep your furry friend safe from these pesky parasites while also ensuring their health remains intact? If so, keep reading. In this article, we will review the best flea and tick prevention products for large dogs on the market today. With our expert advice, you can find the right product that suits your dog's needs, keeping them safe, happy and healthy.

10 Best Flea And Tick For Large Dogs

# Product Image Product Name Product Notes Check Price
1
The product is ideal for preventing fleas and ticks on dogs, cats, and ferrets, and repelling mosquitoes from pets.
2
This product is ideal for preventing fleas and ticks on dogs weighing between 89-132 pounds with a six-month supply.
3
This product is ideal for preventing fleas and ticks on dogs that weigh between 23-44 pounds with a six-month supply.
4
This product is ideal for preventing fleas and ticks on dogs that are between 45-88 pounds for up to 3 months.
5
This product is ideal for preventing and treating flea and tick infestations in medium to large dogs.
6
Flea and tick prevention for dogs weighing 23-44 pounds with a 3 month supply of topical treatments.
7
The product is ideal for preventing fleas and ticks on dogs weighing 61-150 lbs with 3 monthly treatments.
8
This product is ideal for preventing fleas and ticks in dogs weighing between 5-22 pounds with a 6-month supply.
9
It is ideal for preventing fleas and ticks on dogs weighing between 31-60 lbs, with a treatment duration of three months.
10
It is an ideal flea, tick, and mosquito treatment and prevention solution for medium-sized dogs weighing 21-55 lbs for 6 months.
The product is ideal for preventing fleas and ticks on dogs, cats, and ferrets, and repelling mosquitoes from pets.
This product is ideal for preventing fleas and ticks on dogs weighing between 89-132 pounds with a six-month supply.
This product is ideal for preventing fleas and ticks on dogs that weigh between 23-44 pounds with a six-month supply.
This product is ideal for preventing fleas and ticks on dogs that are between 45-88 pounds for up to 3 months.
This product is ideal for preventing and treating flea and tick infestations in medium to large dogs.
Flea and tick prevention for dogs weighing 23-44 pounds with a 3 month supply of topical treatments.
The product is ideal for preventing fleas and ticks on dogs weighing 61-150 lbs with 3 monthly treatments.
This product is ideal for preventing fleas and ticks in dogs weighing between 5-22 pounds with a 6-month supply.
It is ideal for preventing fleas and ticks on dogs weighing between 31-60 lbs, with a treatment duration of three months.
It is an ideal flea, tick, and mosquito treatment and prevention solution for medium-sized dogs weighing 21-55 lbs for 6 months.

1. Flea-Off: Natural Pest Control Drops For Pets

GreenFort NEO Bio Killer is a powerful flea and tick prevention solution that provides immediate relief for your furry friends. It is specially formulated to kill parasites such as fleas, ticks, withers, mosquitoes, flies, and horseflies, making it the best bio spot-on flea and tick prevention for dogs and cats.

This 100% natural and organic anti-flea treatment is not only safe but also ideal for pregnant pets, kittens, and puppies over 7 weeks old, pets with allergies, and sick pets. You can trust the effectiveness of this product to keep your pets free from fleas and ticks.

GreenFort NEO Bio Killer is made with natural essential oils treatments and does not harm your pets. It is absolutely safe and effective in providing long-term protection for up to 3 months. Unlike traditional flea medications that contain harmful chemicals, this natural product is gentle and safe for your pets, making it the best choice for pet owners who are concerned about the well-being of their furry friends.

This flea medication is suitable for cats, rabbits, bunnies, rodents, hamsters, and dogs under 10 kg. It provides long-lasting protection without the use of chemicals, making it a great alternative to traditional flea medications.

2. Topical Tick & Flea Defense For Dogs.

Introducing the SENTRY Fiproguard Plus, a powerful flea and tick control solution for dogs that is designed to keep your furry friend free from pesky parasites for an extended period of time. This top-rated flea treatment is formulated to kill fleas, flea eggs, flea larvae, ticks, and chewing lice for up to 30 days after application.

This vet-quality formula contains fipronil and (s)-methoprene, two active ingredients that are also present in FRONTLINE Plus. These ingredients work together to provide a fast-acting flea treatment that stops the flea life cycle and kills flea eggs and larvae for up to 12 weeks. This means that you can be confident that your dog is protected against fleas and ticks for an extended period.

Not only does the SENTRY Fiproguard Plus provide effective flea control, but it also offers tick prevention. It is known to kill brown dog ticks, American dog ticks, lone star ticks, and deer ticks, which are known to transmit Lyme disease. So, you can have peace of mind knowing that your furry friend is protected against these harmful parasites.

The package includes six 0.136 fl. oz. applicators, which gives you a six-month supply of waterproof topical applications for dog flea and tick control. For best results, apply the flea and tick treatment for dogs directly to dry skin on your dog's back, between the shoulder blades, on a monthly basis.

3. 6-Month Flea Treatment For Dogs (23-44 Lbs)

Introducing SENTRY Fiproguard Plus, a powerful flea and tick control treatment for dogs. This vet-quality formula is designed to kill fleas, flea eggs, flea larvae, ticks, and chewing lice for up to 30 days after application. With its fast-acting and long-lasting formula, SENTRY Fiproguard Plus is the perfect solution for pet owners looking for a reliable flea and tick prevention treatment.

This flea treatment contains fipronil and (s)-methoprene, which are the same active ingredients used in FRONTLINE Plus, ensuring that your furry friend receives the best care possible. The fast-acting formula stops the flea life cycle and kills flea eggs and larvae for up to 12 weeks, providing your dog with long-lasting protection against fleas and ticks.

In addition to its flea control benefits, SENTRY Fiproguard Plus also provides tick prevention. It effectively kills brown dog ticks, American dog ticks, lone star ticks, and deer ticks, which may transmit Lyme disease. This makes it an ideal choice for pet owners who want to keep their dogs protected against the harmful effects of ticks.

Each package of SENTRY Fiproguard Plus comes with six 0.045 fl. oz. applicators, which provide a six-month supply of waterproof topical applications for dog flea and tick control. For best results, pet owners should apply the flea and tick treatment directly to dry skin on their dog's back, between the shoulder blades, on a monthly basis.

4. Fiproguard+ For Dogs: 3 Month Flea Prevention

The SENTRY Fiproguard Plus topical flea and tick prevention for dogs is a reliable and effective solution for pet owners who want to keep their dogs free from fleas and ticks. This vet-quality formula flea treatment is made with fipronil and (s)-methoprene, the same active ingredients used in FRONTLINE Plus, ensuring that it is a trustworthy and safe option for your furry friend.

This fast-acting flea treatment is designed to stop the flea life cycle and kill flea eggs and larvae for up to 12 weeks. Plus, it also eliminates ticks, chewing lice, brown dog ticks, American dog ticks, lone star ticks, and deer ticks, which may transmit Lyme disease. This product is a three-month supply of waterproof topical applications for dog flea and tick control, and it includes three 0.091 fl. oz. applicators.

To use, apply the flea and tick treatment for dogs directly to dry skin on your dog's back, between the shoulder blades, on a monthly basis. The treatment is fast-acting, providing your pet with immediate relief, and it is long-lasting, protecting them for up to 30 days after application.

When it comes to your pet's health and safety, it's important to choose a product that is effective and reliable. The SENTRY Fiproguard Plus topical flea and tick prevention for dogs is a vet-quality formula that provides fast-acting and long-lasting protection against fleas and ticks. With this product, you can rest assured that your furry friend is getting the best possible care.

5. Hartz Ultraguard Flea & Tick Drops For Dogs & Puppies 31-60lbs – 3 Monthly Treatment

If you want to protect your furry friend from pesky fleas, consider the following product. This flea treatment is specifically designed for dogs and puppies that are 12 weeks and older and weigh between 31-60 lbs. With a pack containing three monthly treatments, you can help keep your pet flea-free for a longer period of time.

This flea treatment works quickly to eliminate fleas on your dog, so you can rest assured that your pet is protected. It lasts for up to 30 days, meaning you don't have to worry about reapplying the treatment every few days.

This product is easy to use, simply apply the treatment directly onto your dog's skin and let it work its magic. It is important to follow the instructions on the pack to ensure the maximum effectiveness of the product.

By using this flea treatment, you can help protect your pet from the discomfort and irritation that fleas can cause. With its reliable and effective formula, you can trust that your dog is in good hands.

6. Fiproguard Plus: 3-Month Flea Treatment For Dogs.

Introducing SENTRY Fiproguard Plus, a powerful topical flea and tick prevention formula for dogs that offers long-lasting protection against these pesky parasites. This vet-quality flea treatment contains fipronil and (s)-methoprene, the same active ingredients used in FRONTLINE Plus, ensuring effectiveness and reliability.

SENTRY Fiproguard Plus is a fast-acting solution that kills fleas, flea eggs, flea larvae, ticks, and chewing lice for up to 30 days after application. The flea treatment also stops the flea life cycle and eradicates flea eggs and larvae for up to 12 weeks. This ensures that your furry friend is not only free of adult fleas and ticks, but also prevents future infestations.

Moreover, SENTRY Fiproguard Plus for dogs also protects against a variety of ticks, including brown dog ticks, American dog ticks, lone star ticks and deer ticks, which may transmit Lyme disease. This makes it an ideal choice for pet owners who want comprehensive protection against these pests.

Each package of SENTRY Fiproguard Plus for dog flea and tick control includes three 0.045 fl. oz. applicators, providing a three-month supply of waterproof topical applications. To get the best results, it is recommended to apply the flea and tick treatment directly to dry skin on your dog's back, between the shoulder blades, on a monthly basis.

7. Hartz Ultraguard Plus: Flea & Tick 3-Monthly Defense

The Pro-cision Flo applicator is a cutting-edge product designed to offer pet owners a hassle-free application process. The applicator is patented and is specially designed to penetrate short and long fur, allowing for a direct application to your dog's skin. The package includes three monthly treatments, each of which comes in an easy-to-apply, single-dose tube.

This fast-acting topical drop formula is formulated to kill fleas, flea eggs, deer ticks, and brown dog ticks. It also repels mosquitos for up to 30 days, making it an ideal solution for pet owners who want to keep their pets safe from these pests. The product contains both an adulticide to kill adult fleas, ticks, and mosquitoes, and an insect growth regulator (IGR) to kill flea eggs before they hatch.

This product is intended for use on adult dogs and puppies 12 weeks of age and older. The patented formula effectively controls flea and tick infestations and is proven to kill and prevent adult fleas, ticks, and mosquitoes, as well as flea eggs and larvae. The product's formula contains both an insecticide to kill adult fleas, ticks, and mosquitoes and an insect growth regulator (IGR) to kill flea eggs before they hatch.

One of the product's standout features is its ability to kill and repel the Deer tick, which may carry Lyme disease. For pet owners living in areas where Deer ticks are prevalent, this product is an excellent option to keep their pets safe and free from harm.

This product is intended for use on dogs and puppies weighing over 60lbs. With its fast-acting formula and patented Pro-cision Flo applicator, this product is an ideal solution for pet owners looking for a reliable and effective flea and tick treatment. With three monthly treatments included in each package, this product is an excellent value for pet owners looking for a cost-effective way to keep their pets safe and healthy.

8. Petshield Flea And Tick Protection (5-22 Lbs)

The SENTRY Fiproguard Plus topical flea and tick control is an effective and reliable solution for your furry friend's flea and tick problems. This product is specially designed to kill fleas, flea eggs, flea larvae, ticks, and chewing lice for up to 30 days after application. The formula is made with the same active ingredients used in FRONTLINE Plus, namely fipronil and (s)-methoprene, which are commonly recommended by veterinarians.

SENTRY Fiproguard Plus is a fast-acting and long-lasting topical flea treatment that stops the flea life cycle and kills flea eggs and larvae for up to 12 weeks. This flea and tick control also provides tick prevention by killing brown dog ticks, American dog ticks, lone star ticks, and deer ticks, which are known to transmit Lyme disease.

This product is suitable for senior dogs and is easy to apply. To use, simply apply the solution directly to your dog's skin between the shoulder blades. It is important to follow the instructions on the packaging carefully to ensure that the product is used correctly.

9. Hartz's Tick & Flea Bomb!

The Pro-cision Flo applicator is a revolutionary invention that simplifies the process of applying flea and tick medication to your furry friend's skin. Whether your dog has long or short fur, this patented applicator is designed to penetrate their coat with ease. Each package includes three monthly treatments, which are pre-measured in single dose tubes for your convenience.

This fast-acting topical drop formula is highly effective in killing fleas, flea eggs, deer ticks, and brown dog ticks, as well as repelling mosquitos for up to 30 days. It contains an adulticide that targets and eliminates adult fleas, deer and brown dog ticks, as well as mosquitoes, which can carry dangerous diseases. Additionally, it includes an insect growth regulator (IGR) that kills flea eggs before they have a chance to hatch.

This product is suitable for both adult dogs and puppies that are 12 weeks or older. The three monthly treatments are specifically designed to control flea and tick infestations effectively. By killing and preventing adult fleas, ticks, and mosquitoes, as well as flea eggs and larvae, this formula breaks the flea life cycle.

Furthermore, this product contains an insecticide that targets adult fleas, ticks, and mosquitoes, as well as an IGR that targets flea eggs before they hatch. It is also highly effective in killing and repelling the Deer tick, which is known to carry Lyme disease.

This product is specifically designed for use on dogs and puppies weighing between 31-60 lbs. Its fast-acting formula, easy-to-use applicator, and three-month supply make it an excellent choice for pet owners looking for an effective and convenient flea and tick treatment for their furry friends.

10. Vectra 3d Medium Dog Flea Control, 6-Month Supply

Introducing a highly effective solution to keep your furry friend free from harmful parasites – the Flea and Tick Prevention Treatment. This advanced formula is designed to repel and kill fleas, ticks, lice, mosquitoes, sand flies and mites, ensuring complete protection for your pet.

The powerful formula of this treatment works by killing parasites on contact, without requiring them to bite your pet. This means that your pet is protected from the harmful effects of pests. The treatment also acts to prevent the development of all immature flea stages, including eggs, larvae and pupae, ensuring that your pet remains protected from re-infestation.

One of the best features of this product is its waterproof nature, which means that it remains effective even after bathing and swimming. This ensures that your pet stays protected at all times, even during their outdoor adventures.

The Flea and Tick Prevention Treatment is suitable for puppies as young as 7 weeks of age, ensuring that even your youngest furry friend can enjoy the benefits of complete protection against parasites.

Best Flea And Tick For Large Dogs FAQs

Are there any natural options for flea and tick control for large dogs?

Yes, there are several natural options for flea and tick control for large dogs that are safe and effective. Some of the most popular natural remedies include:

1. Essential oils: Certain essential oils such as lavender, eucalyptus, and peppermint can repel fleas and ticks. Mix a few drops of these oils with water in a spray bottle and apply it to your dog's fur.

2. Diatomaceous earth: This is a natural powder made from fossilized diatoms that can be sprinkled on your dog's fur and bedding to kill fleas and ticks. It works by dehydrating the pests.

3. Apple cider vinegar: Adding apple cider vinegar to your dog's diet can help repel fleas and ticks. It can also be diluted with water and sprayed on your dog's fur.

4. Neem oil: This is a natural oil extracted from the neem tree that can repel and kill fleas and ticks. Mix a few drops of neem oil with water in a spray bottle and apply it to your dog's fur.

It's important to note that while these natural options can be effective, they may not work for every dog and may need to be used in combination with other methods such as regular grooming and vacuuming to keep your home and yard free of fleas and ticks.

Can flea and tick collars be used on large dogs?

Yes, flea and tick collars can be used on large dogs. In fact, there are flea and tick collars specifically designed for larger breeds. These collars are longer and wider to fit around the neck of a larger dog comfortably. It is important to choose a flea and tick collar that is appropriate for the weight and size of your dog to ensure maximum effectiveness and safety. It is also important to follow the manufacturer's instructions for use, such as how long the collar should be worn and when it should be replaced. Additionally, it is a good idea to consult with your veterinarian before using any flea and tick products on your dog, especially if they have any underlying health issues or are taking any medications.

Can I use flea and tick medication on my large dog if they have a pre-existing medical condition?

It is important to consult with your veterinarian before administering flea and tick medication to your dog, especially if they have a pre-existing medical condition. Certain medications may interact with existing health issues or medications your dog is taking and cause adverse reactions. Your veterinarian can help determine if the medication is safe for your dog and recommend any precautions or modifications to the treatment plan. Additionally, it is important to follow the instructions on the medication carefully and only use the appropriate dosage for your dog's size and weight. Keeping your dog protected from fleas and ticks is important for their overall health and well-being, but it is important to do so safely and with the guidance of your veterinarian.

How long does it take for flea and tick medication to start working on a large dog?

The time it takes for flea and tick medication to start working on a large dog can vary depending on the type of medication used. However, most flea and tick treatments start working within 24-48 hours after application. Some treatments may take longer to work, up to a week, but this is relatively rare.

It is important to follow the instructions on the medication packaging and use the appropriate dosage for your dog's size and weight. Additionally, for best results, flea and tick medication should be applied regularly, usually once a month. This will help to ensure that your dog remains protected from fleas and ticks throughout the year.

If you are unsure about which flea and tick medication is best for your dog, it is always best to consult with your veterinarian. They can recommend the most effective treatment for your dog's individual needs and provide guidance on application and dosage.

How often should I apply flea and tick prevention to my large dog?

The frequency of flea and tick prevention application for your large dog depends on the type of product you are using. Some products are designed to provide protection for up to 30 days, while others may last longer. It is important to read the instructions and follow the manufacturer's recommended application schedule for the specific product you are using.

In general, most flea and tick prevention products should be applied once a month to ensure maximum protection. However, if you live in an area with a high incidence of flea and tick activity, or if your dog spends a lot of time outdoors in wooded areas or fields, you may need to apply the product more frequently.

Additionally, it is important to maintain a regular grooming schedule for your dog, including regular checks for fleas and ticks. If you notice any signs of fleas or ticks, such as excessive scratching, hair loss, or redness, consult with your veterinarian for additional treatment options.

Should I choose a topical or oral flea and tick medication for my large dog?

Choosing between a topical and oral flea and tick medication for your large dog depends on your dog's individual needs and preferences. Topical medications are applied directly to your dog's skin and provide protection against fleas and ticks for up to a month. They are easy to apply and can be effective, but they may leave a greasy residue on your dog's fur and can be washed off if your dog goes swimming or gets wet.

On the other hand, oral medications are ingested by your dog and offer protection against fleas and ticks for up to three months. They are convenient and do not leave any residue on your dog's fur, but they may have side effects such as vomiting or diarrhea and may not be suitable for dogs with certain health conditions.

It is important to consult with your veterinarian to determine the best flea and tick medication for your large dog. They can assess your dog's health and lifestyle and recommend a medication that will provide the most effective protection while minimizing any potential risks or side effects.

What are the potential side effects of flea and tick medication for large dogs?

Flea and tick medications are crucial for keeping your large dogs healthy and free of parasites. However, like any medication, they can have potential side effects. The most common side effects of flea and tick medication for large dogs include skin irritation, gastrointestinal upset, and lethargy. Skin irritation may manifest as redness, itching, and hair loss around the application site. Gastrointestinal upset can result in vomiting, diarrhea, and loss of appetite. Lethargy may occur as a result of the medication affecting the dog's nervous system. In rare cases, more severe side effects such as seizures or allergic reactions can occur. It's important to always read and follow the instructions on the medication label and consult with a veterinarian before administering any medication to your dog. If you notice any concerning side effects, contact your veterinarian immediately.

What is the best flea and tick treatment for large dogs?

When it comes to choosing the best flea and tick treatment for large dogs, there are several options available in the market. However, it's always best to consult with your veterinarian before deciding on a treatment plan.

One of the most popular options for flea and tick prevention is oral medication. These medications are usually in the form of pills that are given to the dog once a month. Some of the most commonly used oral medications include Bravecto, NexGard, and Simparica. These medications are effective at killing fleas and ticks quickly and preventing their reinfestation for up to 12 weeks.

Another option is topical treatments, which are applied directly to the dog's skin. Some of the popular topical treatments include Frontline Plus, Revolution, and Advantix. These treatments are also effective at preventing flea and tick infestations and can last for up to a month.

It's important to note that each dog is unique and may react differently to different treatments. Therefore, it's always best to consult with your veterinarian to determine the best flea and tick treatment for your large dog based on their age, health, and lifestyle.

What is the most cost-effective flea and tick prevention option for large dogs?

One of the most cost-effective flea and tick prevention options for large dogs is to use a generic version of a well-known brand. Many pet stores and online retailers carry generic versions of flea and tick preventatives that contain the same active ingredients as the brand-name products but are sold at a lower price point. Another option is to use flea and tick collars, which are also relatively inexpensive and can provide up to eight months of protection. However, it's important to note that not all flea and tick preventatives are created equal, and some may be more effective than others. It's always best to consult with your veterinarian to determine the best flea and tick prevention option for your specific dog, taking into account their age, weight, health, and lifestyle.

Which flea and tick prevention products are safe for pregnant or nursing large dogs?

There are several flea and tick prevention products available in the market that are safe for pregnant or nursing large dogs. However, it is always advisable to consult a veterinarian before administering any medication to your dog, especially if they are pregnant or nursing. Some of the commonly recommended flea and tick prevention products for large dogs include Frontline Plus, Advantage II, and Seresto Collar. These products are formulated with safe and effective ingredients that can help prevent flea and tick infestations without harming the health of your dog or her puppies. Frontline Plus and Advantage II contain fipronil and imidacloprid, while Seresto Collar contains flumethrin and imidacloprid. These active ingredients work by killing fleas and ticks on contact, preventing their eggs from hatching, and providing long-lasting protection for up to eight months. Again, it is essential to consult with your veterinarian to determine the best flea and tick prevention product for your pregnant or nursing large dog.

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