Seresto - Flea & Tick Preventative Collar for Large Dogs

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About this product

What is Seresto for Large Dogs?

Give your dog long-lasting protection against fleas and ticks with a Seresto Large Dog flea and tick collar. Unlike other flea and tick protection, Seresto Large Dog flea and tick collars kill and repel fleas and ticks for eight continuous months. Seresto Large Dog flea and tick collars are recommended by veterinarians, stocked by 8,000 vet clinics* and have been trusted* by pet owners for nearly a decade. *Elanco Animal Health, data on file Seresto Large Dog flea and tick collars are for dogs at least 7 weeks old, and there’s no prescription needed. They’re odorless, non-greasy and water resistant to swimming, exposure to rain or sunlight, bathing, and shampoo treatment.** **Seresto Large Dog is water resistant and remains effective following a shampoo treatment, swimming or after exposure to rain or sunlight. Under normal conditions, effectiveness lasts for 8 months. In order to maintain an eight-month duration, dogs must not be bathed more than once per month. For dogs that swim once a month or more, the control duration is reduced to 5 months for flea control and reduced to 7 months for tick control.

Please Note:

We cannot ship this product to Canada.

Suitable For:

Dogs (7 weeks of age or older, weighing over 18 lbs)

Benefits:

  • Vet-recommended, premium flea & tick protection for dogs & puppies without the price tag
  • Long-lasting flea and tick collar kills & repels fleas for 8 continuous months
  • Seresto is the #1 veterinarian recommended flea & tick collar*
  • Starts working within 24 hours to kill & repel fleas by contact so pests don’t have to bite your dog to die
  • Hassle-free, non-greasy, easy-to-use flea & tick protection

How does Seresto for Large Dogs work?

Seresto Large Dog collars make your dog’s comfort a priority by killing fleas and ticks on contact, so pests don’t have to bite your dog to die. Existing fleas die within 24 hours after initial application of the collar. After 24 hours, any new fleas on the dog are killed within 2 hours with protection against further flea infestation lasting 8 months. The prevention of infestations with new ticks starts at 48 hours after application of the collar. 48 hours after application, any new ticks are repelled and/or killed in as quickly as 6 hours. Seresto Large Dog collars protect against common pests like deer ticks, American dog ticks, brown dog ticks, and Lone Star ticks; they’re also effective against chewing lice. Fleas and ticks not only cause discomfort; fleas can transmit bartonellosis or tapeworm. Ticks can transmit Borrelia burgdorferi which causes Lyme Disease. Check the product label for information on potential side effects.

Cautions:

The collar should not be used on puppies younger than seven weeks old or on kittens younger than ten weeks old. If ticks are present on your pet when the collar is applied, they will not die within the first forty-eight hours and should be removed manually. If your dog or cat shows any sign of skin irritation or other reaction to the collar, remove immediately and consult your veterinarian.

Do not allow children to play with collar or reflectors, or to put them in their mouths. Avoid contact with eyes, skin or clothing. Wash thoroughly with soap and water after fitting the collar. People with sensitivity reactions to the ingredients of the collar should avoid contact with the collar. Choking hazard. Contains small parts. Do not place reflectors in mouth. Not intended for use on humans.

Storage:

Store in a cool, dry place away from children.

Who makes Seresto?

Elanco

What is the most important thing I should know about Seresto?

Seresto is an effective alternative to topical flea and tick control. It is an innovative new flea and ticks collar that releases continuous active ingredients for 8 months, ensuring your pet is protected against harmful conditions that fleas and ticks can transmit. Seresto kills existing fleas on dogs in 24 hours, and reinfesting fleas within 2 hours with protection against further infestations lasting eight months. Ticks already on your pet prior to treatment may not be killed immediately and may remain visible and attached. The prevention of infestations with new ticks starts within 48 hours after application of the collar. Seresto kills lice on dogs for one month, and aids in the treatment and control of sarcoptic mange.

How should Seresto be applied?

Remove the collar from the tin and laminated bag and place the collar around your pet's neck. Push one end of the collar through the loop and adjust for correct fit. Carefully snip off the excess collar with scissors.

What are the potential side effects of Seresto?

Pets may experience some temporary irritation at the site of product application. If signs persist or become more severe within a few days of application, consult a veterinarian immediately.

What should I avoid while applying Seresto to my pet?

Do not allow children to play with collar or reflectors, or allow to put them in their mouths. Avoid contact with eyes, skin or clothing. Wash thoroughly with soap and water after fitting the collar. People with sensitivity reactions to the ingredients of the collar should avoid contact with the collar. Choking hazard. Contains small parts. Do not place reflectors in mouth. Not intended for use on humans.

What if I overdose my pet on this product?

Seek emergency veterinary medical treatment if an overdose is suspected.

See more

Seresto for Large Dogs Directions:

  • Remove the collar from its packaging.
  • Unroll the collar and remove the small plastic connectors from inside the collar, ensuring that no remnants remain.
  • Insert the end of the collar through the buckle and loops.
  • Adjust the collar around your dog's neck until it fits comfortably on them.
  • Two fingers should fit beneath the collar and neck to ensure it's not too tight. Any excess length of the collar beyond an inch past the loops should be cut off, unless it is on a growing puppy, where some additional length may be needed for adjustment as the puppy grows.
  • Check periodically and adjust fit if necessary, especially on growing puppies.
Tip:

When fitting your pet's collar, make sure you can slip two fingers in between the collar and your pet's neck.

Seresto for Large Dogs Dosage:

Seresto for Large Dogs for Dogs
Weight Dosage
Over 18 lbs One Large Dog Collar per 8 months
Seresto for Large Dogs for Cats
Cats
Do not use!
Seresto for Large Dogs for Horses
Horses
Do not use!

Seresto for Large Dogs Ingredients:

Seresto for Large Dogs:
Active Ingredients (per collar) Amount
Flumethrin* 4.5%
Imidacloprid 10.0%
Other Ingredients 85.5%
*Trans Z-1/trans Z-2 Ratio: max 66% trans Z-1 and min 34% trans Z-2
Product Details
plus minus

What is Seresto for Large Dogs?

Give your dog long-lasting protection against fleas and ticks with a Seresto Large Dog flea and tick collar. Unlike other flea and tick protection, Seresto Large Dog flea and tick collars kill and repel fleas and ticks for eight continuous months. Seresto Large Dog flea and tick collars are recommended by veterinarians, stocked by 8,000 vet clinics* and have been trusted* by pet owners for nearly a decade. *Elanco Animal Health, data on file Seresto Large Dog flea and tick collars are for dogs at least 7 weeks old, and there’s no prescription needed. They’re odorless, non-greasy and water resistant to swimming, exposure to rain or sunlight, bathing, and shampoo treatment.** **Seresto Large Dog is water resistant and remains effective following a shampoo treatment, swimming or after exposure to rain or sunlight. Under normal conditions, effectiveness lasts for 8 months. In order to maintain an eight-month duration, dogs must not be bathed more than once per month. For dogs that swim once a month or more, the control duration is reduced to 5 months for flea control and reduced to 7 months for tick control.

Please Note:

We cannot ship this product to Canada.

Suitable For:

Dogs (7 weeks of age or older, weighing over 18 lbs)

Benefits:

  • Vet-recommended, premium flea & tick protection for dogs & puppies without the price tag
  • Long-lasting flea and tick collar kills & repels fleas for 8 continuous months
  • Seresto is the #1 veterinarian recommended flea & tick collar*
  • Starts working within 24 hours to kill & repel fleas by contact so pests don’t have to bite your dog to die
  • Hassle-free, non-greasy, easy-to-use flea & tick protection

How does Seresto for Large Dogs work?

Seresto Large Dog collars make your dog’s comfort a priority by killing fleas and ticks on contact, so pests don’t have to bite your dog to die. Existing fleas die within 24 hours after initial application of the collar. After 24 hours, any new fleas on the dog are killed within 2 hours with protection against further flea infestation lasting 8 months. The prevention of infestations with new ticks starts at 48 hours after application of the collar. 48 hours after application, any new ticks are repelled and/or killed in as quickly as 6 hours. Seresto Large Dog collars protect against common pests like deer ticks, American dog ticks, brown dog ticks, and Lone Star ticks; they’re also effective against chewing lice. Fleas and ticks not only cause discomfort; fleas can transmit bartonellosis or tapeworm. Ticks can transmit Borrelia burgdorferi which causes Lyme Disease. Check the product label for information on potential side effects.

Cautions:

The collar should not be used on puppies younger than seven weeks old or on kittens younger than ten weeks old. If ticks are present on your pet when the collar is applied, they will not die within the first forty-eight hours and should be removed manually. If your dog or cat shows any sign of skin irritation or other reaction to the collar, remove immediately and consult your veterinarian.

Do not allow children to play with collar or reflectors, or to put them in their mouths. Avoid contact with eyes, skin or clothing. Wash thoroughly with soap and water after fitting the collar. People with sensitivity reactions to the ingredients of the collar should avoid contact with the collar. Choking hazard. Contains small parts. Do not place reflectors in mouth. Not intended for use on humans.

Storage:

Store in a cool, dry place away from children.

Who makes Seresto?

Elanco

What is the most important thing I should know about Seresto?

Seresto is an effective alternative to topical flea and tick control. It is an innovative new flea and ticks collar that releases continuous active ingredients for 8 months, ensuring your pet is protected against harmful conditions that fleas and ticks can transmit. Seresto kills existing fleas on dogs in 24 hours, and reinfesting fleas within 2 hours with protection against further infestations lasting eight months. Ticks already on your pet prior to treatment may not be killed immediately and may remain visible and attached. The prevention of infestations with new ticks starts within 48 hours after application of the collar. Seresto kills lice on dogs for one month, and aids in the treatment and control of sarcoptic mange.

How should Seresto be applied?

Remove the collar from the tin and laminated bag and place the collar around your pet's neck. Push one end of the collar through the loop and adjust for correct fit. Carefully snip off the excess collar with scissors.

What are the potential side effects of Seresto?

Pets may experience some temporary irritation at the site of product application. If signs persist or become more severe within a few days of application, consult a veterinarian immediately.

What should I avoid while applying Seresto to my pet?

Do not allow children to play with collar or reflectors, or allow to put them in their mouths. Avoid contact with eyes, skin or clothing. Wash thoroughly with soap and water after fitting the collar. People with sensitivity reactions to the ingredients of the collar should avoid contact with the collar. Choking hazard. Contains small parts. Do not place reflectors in mouth. Not intended for use on humans.

What if I overdose my pet on this product?

Seek emergency veterinary medical treatment if an overdose is suspected.

See more
How to use
plus minus

Seresto for Large Dogs Directions:

  • Remove the collar from its packaging.
  • Unroll the collar and remove the small plastic connectors from inside the collar, ensuring that no remnants remain.
  • Insert the end of the collar through the buckle and loops.
  • Adjust the collar around your dog's neck until it fits comfortably on them.
  • Two fingers should fit beneath the collar and neck to ensure it's not too tight. Any excess length of the collar beyond an inch past the loops should be cut off, unless it is on a growing puppy, where some additional length may be needed for adjustment as the puppy grows.
  • Check periodically and adjust fit if necessary, especially on growing puppies.
Tip:

When fitting your pet's collar, make sure you can slip two fingers in between the collar and your pet's neck.

Seresto for Large Dogs Dosage:

Seresto for Large Dogs for Dogs
Weight Dosage
Over 18 lbs One Large Dog Collar per 8 months
Seresto for Large Dogs for Cats
Cats
Do not use!
Seresto for Large Dogs for Horses
Horses
Do not use!
Ingredients
plus minus

Seresto for Large Dogs Ingredients:

Seresto for Large Dogs:
Active Ingredients (per collar) Amount
Flumethrin* 4.5%
Imidacloprid 10.0%
Other Ingredients 85.5%
*Trans Z-1/trans Z-2 Ratio: max 66% trans Z-1 and min 34% trans Z-2
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kayleec161_5970
today
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Effective
[This review was collected as part of a promotion.] The Seresto collar is a reliable and user-friendly flea and tick prevention solution, offering long-lasting, efficient protection for your pets without the hassle of frequent treatments.
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Helpful?
destinyp75_7469
today
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Buy it!
[This review was collected as part of a promotion.] Such a great product. It is durable and it doesn’t bother my dog. It is affordable and the fit is nice and easy to apply. Very effective and doesn’t have a strong scent.
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uyent20_8353
today
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big dog
[This review was collected as part of a promotion.] This product is packaged in a sturdy tin box, which provides good protection and gives it a premium feel. The included instructions are clear, well-organized, and easy to follow, making it simple for users to understand. The strap is made of flexible plastic, allowing for easy size adjustment while ensuring a comfortable fit for children without causing irritation. Additionally, a detailed instruction sheet is included inside, providing further guidance for proper use.
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mmagik_2220
today
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Awesome
[This review was collected as part of a promotion.] This product is very effective at keeping fleas and tics at bay, it fit my medium dog, which was a good sign it sent list and the value is good for the period of time it lasts
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quickquickee_48
today
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Effective flea control
[This review was collected as part of a promotion.] I received this product in exchange for my honest review from influenster. This collar is the perfect size for my large dog and it stands up to all of his rambunctious behavior. It has been effective almost since day one. It is made durable but if a safety issue of getting hung arises then I know it would not become an issue because it would break away. Definitely an effective collar for flea control. Thanks influenster.
Helpful?
robinn4_6760
today
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Set it and forget it!
[This review was collected as part of a promotion.] Great product! Super easy to put on the pup, keeps him flea and tick free, and we don’t have to worry about changing it for 8 months. “Set it and forget it” at its finest.
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janaes4_3086
today
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You can leave on and give your dog a bath
[This review was collected as part of a promotion.] Flea and tick color Does what it says. It has very nice packaging I love that you can give your dog a bath and leave it on. I wish it came in different colors. I wish I had longer to test it before the review, but so far, so good.
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tammiej6_52
today
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High performance ! No mess
[This review was collected as part of a promotion.] Received this Seresto dog collar from Influenster for my honest review! We are absolutely loving this amazing collar it’s very easy to apply with absolutely no harsh smells ! (Definitely a plus ) it’s absolutely great that Seresto dog collar definitely delivers continuous protection from fleas and ticks for 8 months!!!! (Amazing ) also kills and repels fleas and ticks through contact. We have not seen a single flea on Brady since we put his collar on!! I absolutely recommend we will absolutely continue to purchase this absolutely amazing product
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