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
Other Options
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kkcrank_5472
today
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Good product, just not for my dogs
[This review was collected as part of a promotion.] There is nothing wrong with the product itself. It is effective for repelling fleas and ticks. It’s just not the product for my dogs. I prefer something they don’t need to wear 24/7–especially since one goes to daycare can cannot have a collar on.
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karlam521_7543
today
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Flea collar
[This review was collected as part of a promotion.] I have never tried a flea and tic collar on my animals till now. Where we live it is starting warm up and flea season is starting. So far so good. Have not noticed and fleas on our dog. Our dog has only been wearing for a few weeks.
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jennifery59_3596
today
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Easy to use
[This review was collected as part of a promotion.] This dog collar is very easy to put on and the material is soft. It does not irritate my dog at all. So far, it’s been effective, though we barely started better weather where he will be outdoors.
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victoriaj165_4261
today
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Great value and easy fit
[This review was collected as part of a promotion.] This product has a versatile fit; I thought it wouldn’t be big enough for my dog but it has an adjustable length. My dog didn’t mind it while he had it on, so it was easy to have on and not worry about catching fleas and ticks. I didn’t notice anything on him, but it’s also a little cooler now so we’ll see the true effectiveness when summer hits.
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chrisj70_2838
today
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Good range of protection but needs to mention that
[This review was collected as part of a promotion.] I had planned to use this product on a hike with my dog but before we left to head out, I read through the instructions and saw that the collar would only be effective at killing or repelling ticks 48 hours after being applied. This is not necessarily a fault of the product but I would like to see that on the outside of the packaging rather than only in the instructions. Without mention of the timeframe I had assumed it would work like a mosquito wrist band and help repel immediately. Otherwise I think 8 months of protection, the universal fit (for large dogs), and range of advertised protection are all great product attributes.
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angelinar49_6987
today
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Great
[This review was collected as part of a promotion.] My dog loves this dog collar! It keeps all the ticks and lice away, and it’s really great. I totally recommend, it does not irritate her at all and is very convenient.
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victoriac440_8023
today
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Only flea and tick preventative we trust!
[This review was collected as part of a promotion.] I wouldn’t trust any other brand besides Seresto for my dog’s flea and tick preventative. He is 5 years old and has never worn any other flea and tick product. Seresto has never failed us!
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nikkig128_2436
today
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Great!
[This review was collected as part of a promotion.] This is a great collar! The color and fit are perfect. I got the dark blue one. I plan to use this when I take my dog camping in a few months, but it’s a strong rubber-like material. Can’t wait to try it out!
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