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Up to $20 off, exclusions applyGive 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.
We cannot ship this product to Canada.
Dogs (7 weeks of age or older, weighing over 18 lbs)
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.
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.
Store in a cool, dry place away from children.
Elanco
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.
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.
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.
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.
Seek emergency veterinary medical treatment if an overdose is suspected.
When fitting your pet's collar, make sure you can slip two fingers in between the collar and your pet's neck.
Weight | Dosage |
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Over 18 lbs | One Large Dog Collar per 8 months |
Cats | Do not use! |
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Horses | Do not use! |
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Active Ingredients (per collar) | Amount |
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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 |