Parasites can wreak havoc on your furry friend's health and wellbeing. From fleas and ticks to heartworms and intestinal worms, these pests can cause a range of health issues that can be both painful and costly to treat. Fortunately, there are many options for preventing parasites in dogs, including topical treatments, oral medications, and collars.
When it comes to choosing the best parasite prevention for your dog, there are several factors to consider. The type of parasite you're trying to prevent is the most critical factor. Some products are designed to protect against a broad range of parasites, while others target specific types. You'll also want to consider your dog's age, weight, and overall health, as well as any allergies or sensitivities they may have.
After researching and testing various parasite prevention products, we've identified the best options for keeping your dog healthy and parasite-free. Whether you're looking for a monthly topical treatment or a long-lasting collar, we've got you covered. Keep reading to find out which products made our list and why they're the best choice for your furry friend.
Best Parasite Prevention for Dogs
As a dog owner, it is essential to keep your furry friend protected against parasites. Parasites can cause various health issues and discomfort in dogs, making it crucial to choose the right prevention method. In this article, we have compiled a list of the best parasite prevention products for dogs. Our selection includes a variety of options, from spot-on treatments to chewable tablets, to suit different preferences and needs. Read on to find the perfect parasite prevention solution for your dog.
If you're looking for an all-natural and organic solution to keep your pets and home free from parasites, Skin Parasite Dust Powder by American Pet Botanicals is worth considering.
Pros
Made with certified organic herbs grown in the USA
Easy flip top shaker lid for convenient application
Safe, effective, and non-toxic
Cons
Packaging may make it difficult to use
Holes in the shaker top may be too large
Some users report that it may not work as effectively as other products
Skin Parasite Dust Powder is a great option for those who prefer natural and holistic solutions for their pets. The powder is made with certified organic herbs grown in the USA and contains no harmful chemicals or ingredients. It is safe for dogs, cats, and humans, making it a versatile option for parasite prevention and treatment. The easy flip top shaker lid also allows for convenient application.
However, some users may find the packaging to be difficult to use, and the holes in the shaker top may be too large, causing the powder to come out too quickly. Additionally, some users report that it may not work as effectively as other products.
Overall, if you're looking for an all-natural and organic solution for parasite prevention and treatment, Skin Parasite Dust Powder is definitely worth trying.
If you want to keep your dog protected from fleas and ticks, Frontline Plus for Dogs is an excellent option that has been trusted by pet owners for over 20 years. It is easy to apply and provides protection for a full 30 days.
Pros
Kills fleas, flea eggs, flea larvae, chewing lice, and ticks that can transmit Lyme disease
Specially formulated to kill existing adult fleas, flea eggs, and flea larvae to guard against further infestations for flea control
Can be used on puppies as young as eight weeks old, weighing 5 pounds or more
Cons
Expensive compared to other flea and tick prevention products
Some customers reported ticks still being present after three weeks
May cause skin irritation in some dogs
Frontline Plus for Dogs is a fast-acting, waterproof flea and tick topical that is proven to break the flea life cycle. It is specially formulated with fipronil and (S)-methoprene to kill existing adult fleas, flea eggs, and flea larvae to guard against further infestations for flea control. This product can be used on puppies as young as eight weeks old, weighing 5 pounds or more, making it a great option for pet owners with young dogs.
One of the best things about Frontline Plus for Dogs is that it is easy to apply. It is applied to a single point on your pet, covers your dog's entire body, and deposits in the sebaceous glands. These glands act as a reservoir, continuously replenishing the treatment onto your pet, working even if your dog gets wet. Just one dose of Frontline Plus each month protects against fleas and ticks for a full 30 days.
While Frontline Plus for Dogs is an excellent product, it is more expensive than some other flea and tick prevention products on the market. Additionally, some customers have reported ticks still being present after three weeks. Finally, some dogs may experience skin irritation after using this product.
Overall, if you are looking for a reliable flea and tick prevention product, Frontline Plus for Dogs is an excellent option. It is easy to apply and provides protection for a full month. However, it is more expensive than some other products and may cause skin irritation in some dogs.
If you want to keep your dog healthy and free of worms, PetArmor 7 Way De-Wormer for Dogs is the perfect solution.
Pros
This chewable dewormer is easy to administer to your dog and is available at an affordable price.
It is a vet-quality product that is safe for small dogs and puppies 12 weeks or older.
PetArmor 7 Way De-Wormer for Dogs removes seven species of worms, including two types of tapeworms, two types of roundworms, and three types of hookworms.
Cons
Some dogs may not like the taste of the chewable dewormer and may reject it.
Deworming schedules may vary depending on the climate where you live and the activity of your dog.
It is important to follow label instructions and consult with your veterinarian for assistance in the diagnosis, treatment, and control of parasitism.
PetArmor 7 Way De-Wormer for Dogs is a reliable and effective treatment for roundworms, tapeworms, and hookworms. The chewable tablets make it easy to give to your dog, and your pup will love the taste. It is safe for small dogs and puppies 12 weeks or older, and it removes seven species of worms, which gives you peace of mind knowing that your furry friend is protected.
PetArmor 7 Way De-Wormer for Dogs is a great option for pet owners who want an affordable and effective way to deworm their dogs. It is important to follow label instructions and consult with your veterinarian to ensure that your dog is healthy and free of parasites.
If you want to protect your dog from fleas and ticks, you should definitely purchase FRONTLINE® Plus for Dogs Flea and Tick Treatment. It is a fast-acting, waterproof topical that kills fleas, flea eggs, flea larvae, chewing lice, and ticks that can transmit Lyme disease.
Pros
It is easy to apply with one monthly dose providing protection from fleas & ticks for a full 30 days.
It is specially formulated with fipronil and (S)-methoprene to kill existing adult fleas, flea eggs and flea larvae to guard against further infestations for flea control.
It can be used on puppies as young as eight weeks old, weighing 5 pounds or more.
Cons
Some dogs may be sensitive to the chemicals.
It may be a little strong for small dogs.
It may not work as well on dogs with thick coats.
FRONTLINE® Plus for Dogs is a product that I have personally used on my dog and I must say that I am quite impressed with it. It is very easy to apply and it provides protection from fleas and ticks for a full 30 days. It is also waterproof, which means that it will continue to work even if your dog gets wet.
One of the best things about FRONTLINE® Plus for Dogs is that it is specially formulated with fipronil and (S)-methoprene to kill existing adult fleas, flea eggs and flea larvae to guard against further infestations for flea control. This means that it not only kills fleas and ticks, but it also helps to prevent future infestations.
Another great thing about this product is that it can be used on puppies as young as eight weeks old, weighing 5 pounds or more. This is great news for new dog owners who want to protect their puppies from fleas and ticks.
However, it is important to note that some dogs may be sensitive to the chemicals in FRONTLINE® Plus for Dogs. Additionally, it may be a little strong for small dogs and it may not work as well on dogs with thick coats. Overall, I would highly recommend this product to anyone who wants to protect their dog from fleas and ticks.
If you're looking for a natural and effective way to protect your dog from fleas and ticks, Vet's Best Flea and Tick Home Spray is a great option.
Pros
The spray uses certified natural ingredients to kill fleas, flea eggs, and ticks on contact.
It's scientifically proven effective against pests but gentle enough to use around the whole family.
The steam-distilled essential oils are 100% Certified Natural and selected for their potent pest-fighting properties.
Cons
Some users have reported that it takes a lot of spray to kill fleas efficiently.
It's not a permanent solution to fleas and ticks, so you'll need to reapply regularly.
The smell of peppermint may be too strong for some people.
Vet's Best Flea and Tick Home Spray is easy to apply and can be used on surfaces both indoors and out, including dog bedding, crates, furniture, blankets, upholstery, carpets, outdoor surfaces, and more. It's also gentle enough to be applied directly on dogs and puppies 12 weeks or older.
The natural ingredients in this spray make it a great choice for pet owners who are looking for an alternative to chemical-based products. However, it's important to note that it may not be as effective as some chemical-based options, especially in severe infestations.
Overall, if you're looking for a natural and effective way to protect your dog from fleas and ticks, Vet's Best Flea and Tick Home Spray is definitely worth considering.
PetArmor Plus Flea and Tick Prevention for Dogs is an effective and affordable solution to protect your furry friend from fleas and ticks.
Pros
Provides waterproof, fast-acting, and long-lasting flea and tick protection for up to 30 days after application.
Contains the same active ingredients as FRONTLINE Plus for Dogs, which is a trusted vet quality formula.
Kills fleas, flea eggs, flea larvae, ticks, and chewing lice and breaks the flea cycle by killing flea eggs and larvae to prevent re-infestation.
Cons
Some dogs may experience skin irritation or hair loss at the application site.
May not be effective for all dogs, especially those with severe flea infestations.
Some pet owners may prefer monthly oral flea and tick preventatives.
PetArmor Plus Flea and Tick Prevention for Dogs is easy to use and comes with three waterproof topical applications that provide your pet flea protection and control for three months. The formula starts to kill fleas within 24 hours of application and prevents re-infestation by killing flea eggs and larvae. The product is also waterproof, so you don't have to worry about it washing off during baths or swimming.
Overall, PetArmor Plus Flea and Tick Prevention for Dogs is an effective and affordable solution for pet owners looking for a reliable flea and tick preventative. However, it may not be suitable for all dogs, and some may experience skin irritation or hair loss at the application site. It's important to consult with your veterinarian before using any flea and tick preventatives on your pet.
If you're looking for a veterinarian-recommended formula that can protect your dog against fleas, ticks, mosquitoes, biting flies, and lice, then K9 Advantix II XL Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention is the right product for you.
Pros
K9 Advantix II XL Dog can kill fleas within 12 hours of application.
This formula is easy to apply and is fragrance-free.
K9 Advantix II XL Dog is waterproof after 24 hours of application.
Cons
K9 Advantix II XL Dog is not suitable for dogs under 7 weeks old or weighing less than 55 lbs.
This product may cause side effects such as skin irritation, vomiting, and diarrhea.
K9 Advantix II XL Dog is not effective against all types of ticks.
K9 Advantix II XL Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention is a great product that can help protect your dog against fleas, ticks, mosquitoes, biting flies, and lice. This formula is easy to apply and is fragrance-free, making it a great option for dogs that are sensitive to smells. Additionally, K9 Advantix II XL Dog is waterproof after 24 hours of application, which means that your dog can still enjoy playing in the water.
However, there are some cons to this product that you should be aware of. K9 Advantix II XL Dog is not suitable for dogs under 7 weeks old or weighing less than 55 lbs. If your dog is smaller than this, you will need to look for a different product. Additionally, K9 Advantix II XL Dog may cause side effects such as skin irritation, vomiting, and diarrhea. Finally, while K9 Advantix II XL Dog is effective against most types of ticks, it may not work against all of them.
In conclusion, K9 Advantix II XL Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention is a great product that can help protect your dog against fleas, ticks, mosquitoes, biting flies, and lice. It is easy to apply, fragrance-free, and waterproof after 24 hours of application. However, it is not suitable for all dogs and may cause side effects.
Protect your furry friend from fleas, ticks, mosquitoes, biting flies, and lice with K9 Advantix II Large Dog. This vet-recommended formula kills and repels pests on contact, so fleas don't have to bite your dog to die.
Pros
Kills fleas within 12 hours of application
Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours
No prescription needed
Cons
May cause side effects in some dogs, such as skin irritation or hair loss
Some users report that the product did not work effectively for their dog
May not be suitable for dogs with certain medical conditions or on certain medications
K9 Advantix II Large Dog is a great choice for pet owners looking for a reliable, easy-to-use flea and tick prevention product. The topical treatment is simple to apply and starts working quickly, killing fleas within just 12 hours of application. Plus, the formula is fragrance-free and waterproof after 24 hours, so your dog can continue to play and swim without worry.
However, it's important to note that some dogs may experience side effects from the product, such as skin irritation or hair loss. Additionally, while many users report that K9 Advantix II worked effectively for their dog, some have reported that it did not work as well as other products they have tried.
Overall, K9 Advantix II Large Dog is a solid choice for pet owners looking for a vet-recommended flea and tick prevention product that is easy to use and effective. As with any medication, it's important to discuss with your veterinarian whether this product is right for your dog and to closely monitor your pet for any signs of adverse reactions.
If you're looking for a fast-acting flea treatment for your furry friend, CAPSTAR Oral Flea Treatment for Dogs is definitely worth considering.
Pros
Starts killing adult fleas in just 30 minutes
One tablet can kill 90% of adult fleas within 4 hours for dogs and 6 hours for cats
Safe to administer one tablet per day until flea infestation is resolved
Cons
Only kills adult fleas and not flea eggs or larvae
May not be effective for severe flea infestations
May cause side effects such as vomiting, diarrhea, and lethargy
As someone who has used CAPSTAR on my dog, I can attest to its fast-acting formula. Within 30 minutes of administering the tablet, I noticed a significant decrease in the number of fleas on my dog. Additionally, the convenience of being able to give my dog a single tablet and watch the fleas fall off is a huge plus.
However, it's important to note that CAPSTAR only kills adult fleas and not flea eggs or larvae. This means that if there are any eggs or larvae present in your home, you may need to use additional flea treatments to fully eliminate the infestation. Additionally, while CAPSTAR is effective for mild to moderate flea infestations, it may not be as effective for severe infestations.
Finally, it's important to be aware of the potential side effects of CAPSTAR, which can include vomiting, diarrhea, and lethargy. While these side effects are rare, it's important to monitor your pet after administering the tablet.
Overall, if you're looking for a fast-acting flea treatment for your dog, CAPSTAR is definitely worth considering. However, it's important to be aware of its limitations and potential side effects before using it on your pet.
If you're looking for an effective flea and tick prevention for your dog, TevraPet Activate II is a great option to consider.
Pros
Contains Imidacloprid, Permethrin, and Pyriproxyfen, which are safe and fast-acting active ingredients that are also used in Advantix II for Dogs
Approved by veterinarians to repel and kill fleas and ticks on contact, protecting your dog from potential flea-borne illnesses
Prevents infestations by breaking the flea life cycle, with the insect growth regulator (IGR) killing flea eggs and larvae within 12 hours of application
Cons
Some reviewers have reported that the product didn't work as effectively as they had hoped, although this seems to be a minority opinion
The product may cause irritation or other side effects in some dogs, although this is also relatively rare
The smell of the product may be unpleasant to some people, although it's not particularly strong
I recently tried TevraPet Activate II on my own dog, and I was impressed with how well it worked. Within a day or two of applying the product, I noticed a significant reduction in the number of fleas and ticks on my dog, and he seemed much more comfortable and less itchy overall.
One of the things I appreciated about this product was how easy it was to apply. The topical drops are designed to be applied to the base of your dog's neck, and the waterproof solution will travel across the skin, providing continuous protection for 30 days per application. I also appreciated the fact that the product is made in America and comes with a satisfaction guarantee.
Overall, I would definitely recommend TevraPet Activate II to anyone looking for an effective flea and tick prevention for their dog. While there are some potential downsides to the product, these are relatively minor compared to the benefits it provides.
If you're looking for an affordable and effective flea and tick prevention solution for your dog, TevraPet Activate II is worth considering.
Pros
Contains the same active ingredients as K9 Advantix II, but at a lower cost
Approved by veterinarians to repel and kill fleas and ticks on contact
Starts killing flea eggs and larvae within 12 hours of application
Cons
Some users have reported that the solution can be messy and difficult to apply
May not be effective for all dogs, depending on their individual sensitivity to the ingredients
Some users have reported a strong chemical smell after application
TevraPet Activate II is a topical flea and tick prevention solution that is designed to protect your dog from infestations by breaking the flea life cycle. The solution contains Imidacloprid, Permethrin, and Pyriproxyfen - the same active ingredients used in K9 Advantix II - and is approved by veterinarians to repel and kill fleas and ticks on contact.
One of the biggest advantages of TevraPet Activate II is its affordability. While K9 Advantix II can be quite expensive, TevraPet Activate II offers the same level of protection at a much lower cost. Additionally, the solution is designed to start killing flea eggs and larvae within 12 hours of application, which can help to prevent infestations from taking hold.
While TevraPet Activate II is generally effective for most dogs, some users have reported that the solution can be messy and difficult to apply. Additionally, some dogs may be more sensitive to the active ingredients than others, which can result in skin irritation or other adverse reactions. Finally, some users have reported a strong chemical smell after application, which can be unpleasant for both the dog and their owner.
Overall, if you're looking for an affordable and effective flea and tick prevention solution for your dog, TevraPet Activate II is definitely worth considering. Just be aware that it may not be effective for all dogs, and that some users have reported issues with application and odor.
If you're looking for an easy-to-use and effective dewormer for your dog, the Elanco Chewable Quad Dewormer is definitely worth considering.
Pros
The beef-flavored chewable tablets are easy to give to your dog and are generally well-tolerated.
This broad-spectrum dewormer is effective against a variety of common intestinal parasites, including tapeworms, roundworms, hookworms, and whipworms.
With just a single dose, you can remove these parasites from your dog's system and help protect them from future infections.
Cons
As with any dewormer, there is a chance of side effects, such as vomiting or diarrhea.
It's important to take steps to control fleas and rodents on your property to prevent reinfection, which may require additional treatments.
While this dewormer is suitable for dogs over 4 weeks of age, it may not be appropriate for all dogs, so be sure to consult with your veterinarian before use.
Overall, the Elanco Chewable Quad Dewormer is a reliable and effective option for deworming your dog. While there are some potential downsides to consider, the benefits of removing harmful parasites from your dog's system make it well worth the investment.
If you're looking for a natural flea and tick prevention solution for your pets, Beloved Pets Natural Flea and Tick Prevention is a great option.
Pros
Fast-acting and effective in killing fleas, ticks, mosquitoes, flies, and horseflies.
Made with 100% natural and organic ingredients, making it safe for pregnant pets, kittens, puppies, pets with allergies, and sick pets.
Provides long-term protection for up to 3 months without any chemical ingredients.
Cons
Only suitable for pets under 10 kg, which may not be ideal for larger dogs.
Some users reported that the product was too strong and gave them headaches.
The package may arrive damaged, causing the product to spill out.
Beloved Pets Natural Flea and Tick Prevention is a natural and organic solution that is safe for your pets. It is made with natural essential oils that do not cause any harm to your pets. The product is fast-acting and effective in killing fleas, ticks, mosquitoes, flies, and horseflies.
This flea and tick prevention treatment is ideal for pregnant pets, kittens, puppies, pets with allergies, and sick pets. It provides long-term protection for up to 3 months without any chemical ingredients. This makes it a great option for pet owners who are looking for a natural solution to protect their pets from fleas and ticks.
One downside of this product is that it is only suitable for pets under 10 kg, which may not be ideal for larger dogs. Some users reported that the product was too strong and gave them headaches. Additionally, the package may arrive damaged, causing the product to spill out.
Overall, Beloved Pets Natural Flea and Tick Prevention is a great option for pet owners who are looking for a natural and organic solution to protect their pets from fleas and ticks. It is fast-acting, effective, and safe for your pets.
If you're looking for a reliable flea and tick prevention treatment for your furry friend, K9 Advantix II Small Dog might be the right choice for you.
Pros
Kills fleas within 12 hours of application
Vet-recommended formula kills & repels on contact so fleas don’t have to bite your dog to die
Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours
Cons
May cause skin irritation in rare cases
Some dogs may not tolerate the smell
May not be effective for all dogs
K9 Advantix II Small Dog is a veterinarian-recommended formula that helps defend your dog against fleas, ticks, mosquitoes, biting flies, and lice. Unlike other treatments, K9 Advantix II kills and repels fleas, ticks, and mosquitoes. This formula stops existing flea infestations and prevents new ones by killing adult fleas on contact so they can’t lay eggs and they don’t have to bite your dog to die.
One of the best things about K9 Advantix II is that it's easy to apply and gets straight to work killing fleas on dogs within 12 hours of initial application. This formula also protects your dog against fleas that may cause transmission of tapeworms, flea allergy dermatitis, and flea bite anemia. Monthly use of K9 Advantix II is important to protect your dog against these pests and the diseases they may transmit.
Another great feature of K9 Advantix II is that it's fragrance-free and waterproof after 24 hours of application. This makes it a convenient option for pet owners who don't want to deal with messy or smelly flea and tick treatments.
However, it's important to note that some dogs may experience skin irritation or other side effects from using K9 Advantix II. Additionally, some dogs may not tolerate the smell of the treatment. It's always a good idea to consult with your veterinarian before starting any new flea and tick prevention treatment for your dog.
Overall, K9 Advantix II Small Dog is a reliable and effective flea and tick prevention treatment that is easy to apply and provides long-lasting protection for your furry friend.
If you're looking for a reliable and effective flea and tick treatment for your furry friend, then FRONTLINE Plus for Dogs is definitely worth considering.
Pros
Provides fast-acting and long-lasting protection against fleas, flea eggs, flea larvae, chewing lice, and ticks that can transmit Lyme disease.
Breaks the flea life cycle and guards against further infestations for flea control.
Trusted by pet owners for over 20 years and can be used on puppies as young as eight weeks old, weighing 5 pounds or more.
Cons
May cause skin irritation or hair loss at the application site.
Some dogs may experience vomiting, diarrhea, or lethargy after treatment.
May not be effective for all dogs, especially those with severe flea infestations.
FRONTLINE Plus for Dogs is a topical treatment that is easy to apply and provides a full 30 days of protection against fleas and ticks. The treatment is applied to a single point on your pet's body and is deposited in the sebaceous glands, which act as a reservoir and continuously replenish the treatment onto your pet's body, even if your dog gets wet.
One of the things that we love about FRONTLINE Plus for Dogs is that it is waterproof, which means that you don't have to worry about reapplying the treatment if your dog goes swimming or gets caught in the rain. The treatment is also fast-acting, which means that it starts working immediately to kill fleas and ticks on contact.
That being said, it's important to note that FRONTLINE Plus for Dogs may cause skin irritation or hair loss at the application site, and some dogs may experience vomiting, diarrhea, or lethargy after treatment. Additionally, while this treatment is effective for most dogs, it may not be effective for all dogs, especially those with severe flea infestations.
Overall, if you're looking for a reliable and effective flea and tick treatment for your furry friend, then we highly recommend giving FRONTLINE Plus for Dogs a try.
Buying Guide
When it comes to choosing the best parasite prevention for your dog, there are several factors to consider. Here are some features to look for when selecting a product:
Active Ingredients
The first thing to consider is the active ingredients in the product. Make sure the product is effective against the specific parasites that are prevalent in your area. Some common active ingredients include:
Fipronil
Imidacloprid
Permethrin
Pyrethrin
Selamectin
Application Method
Another important factor to consider is the application method. Products come in various forms, including:
Topical treatments
Oral medications
Collars
Choose a product that is easy to apply and fits your dog's lifestyle. For example, if your dog is not fond of taking pills, an oral medication may not be the best option.
Duration of Protection
The duration of protection is also an important consideration. Some products provide protection for up to a month, while others can last for up to 12 weeks. Choose a product that provides adequate protection for your dog's needs.
Safety
Ensure that the product you choose is safe for your dog. Look for products that are approved by regulatory bodies such as the FDA or EPA. Read the label carefully and follow the instructions for use.
Price
Price is another factor to consider when choosing a parasite prevention product. While it may be tempting to opt for a cheaper product, it is important to remember that quality comes at a price. Choose a product that offers the best value for money.
By considering these factors, you can choose the best parasite prevention product for your furry friend.
Frequently Asked Questions
What is the best flea, tick and heartworm medication for dogs?
The best flea, tick, and heartworm medication for dogs depends on several factors such as the dog's age, breed, size, and health status. Consult with your veterinarian to determine the best medication for your dog.
Which dog flea and tick control is the best?
There are many effective flea and tick control products available for dogs, including collars, topical treatments, and oral medications. The best product for your dog depends on various factors, such as the dog's age, breed, size, and health status. Consult with your veterinarian to determine the best flea and tick control product for your dog.
Best heartworm prevention for dogs
Heartworm prevention is crucial for dogs, and there are several effective heartworm prevention products available, including monthly oral medications and injections. Consult with your veterinarian to determine the best heartworm prevention product for your dog.
Best dewormer for large dogs?
There are various dewormers available for dogs, and the best dewormer for your large dog depends on the type of worms your dog has. Consult with your veterinarian to determine the best dewormer for your dog.
How do I protect my dog from parasites?
To protect your dog from parasites, keep your dog's living area clean, avoid contact with other animals that may be infected, and use parasite prevention products recommended by your veterinarian.
How often should dogs have parasite prevention?
The frequency of parasite prevention depends on the type of parasite and the product used. Consult with your veterinarian to determine the best parasite prevention schedule for your dog.