Seresto Flea Collar For Dogs Over 8kg

Seresto Flea Collar For Dogs Over 8kg
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One Collar

Images are for illustration purposes only. Packaging may change from time to time and images on our website may or may not be updated.

  • One Collar £37.49

Description

Seresto Flea and Tick Control Collar for Large Dogs is clinically proven to kill fleas and repel and kill ticks for 7-8 months. Long lasting protection available in a single application, so there's no need to remember monthly treatments. Now availible in new sustainable packaging.

Seresto has repellent action meaning ticks do not have to bite to be killed. As a result of this, Seresto is clinically proven to reduce the risk of canine vector borne diseases babesiosis and ehrlichiosis. Using an advanced polymer system, the collar's active ingredients are slowly released at low doses onto your dog’s skin and coat to help keep them protected. There is no mess, no grease and no smell, plus it features a specially designed safety release mechanism to give you peace of mind.

How to Use Seresto Flea and Tick Control Collar for Dogs

Simply place Seresto on your dog for long lasting flea and tick protection available in a single application, meaning your dog can play-on without the worry of fleas and ticks.

Forget about fleas and ticks for 7-8 months. Fit and forget with Seresto

KEY BENEFITS:

  • 7-8 months protection in a single application.
  • Clinically proven to kill fleas and repel and kill ticks.
  • Built in safety-release mechanisms for peace of mind.
  • Easy, long-lasting protection.
  • No mess, grease or smell.
  • Recommended by vets.

INSTRUCTIONS

Cutaneous use. One collar per animal to be fastened around the neck.

Remove collar from protective bag directly before use. Unroll collar and make sure that there are no remnants from the plastic connectors inside the collar. Adjust the collar around the animal's neck without tightening it too tight (as a guide, it should be possible to insert 2 fingers between the collar and the neck). Pull excess collar through the loop and cut off any excess length extending beyond 2 cm.

The collar should be worn continuously for the 7–8-month protection period and should be removed after the treatment period. Check periodically and adjust fit, if necessary, especially when puppies are rapidly growing.

ADMINISTRATION GUIDE

For dogs above 8kg bodyweight use Seresto Flea and Tick Control Collar for Dogs 8kg and Over

One collar for dogs >8kg of 70 cm length.

INGREDIENTS

  • Seresto Flea and Tick Control Collar for Dogs 8.01kg and Over - Imidacloprid 4.5g, Flumethrin 2.03g

IMPORTANT INFORMATION

This product belongs within the animal medicines legal category of NFA-VPS (Non Food Animal - Veterinarian, Pharmacist, Suitably Qualified Person).

Need help or advice? Contact us:


All prices include VAT where applicable.

Medication Datasheets

Reviews (230)

Summary of Reviews for Seresto Flea Collar For Dogs Over 8kg

Overall 5
Effectiveness
Ease Of Use
Value For Money
Absence Of Side Effects
218 out of 230 (95%) customers would recommend this product.
5 stars (178 reviews)
4 stars (36 reviews)
3 stars (5 reviews)
2 stars (3 reviews)
1 stars (8 reviews)

Only verified purchasers of this product can leave a review.

Come off and get lost
Verified Purchase

By Don Felton on 11 July 2026

Our dogs wear break collars as a safety measure while providing the required ID.This means the main collars regularly get pulled off during play. And now the flea collars do as well.. Finding grey flea collars "somewhere" in the garden is no fun.These could be better designed by clipping on to the main collar and using that as the means of coupling, or coloured so they could be found.When they are on they probably work. We havent seen any flea/tick problems but there werent any before hand so who knows.

Customer recommends this product

Probably work but
Verified Purchase

By Don Felton on 11 July 2026

Our dogs wear break collars as a safety measure while providing the required ID.This means the main collars regularly get pulled off during play. And now the flea collars do as well.. Finding grey flea collars "somewhere" in the garden is no fun.These could be better designed by clipping on to the main collar and using that as the means of coupling, or coloured so they could be found.When they are on they probably work. We havent seen any flea/yick problems but there werent any before hand so who knows.

Customer recommends this product

No more bugs
Verified Purchase

By Barbara Wells on 27 May 2026

Third year of buying and so far is working as well as previous two. Always recommend to friends.

Customer recommends this product

Excellent product
Verified Purchase

By Hugh Murray Collins on 20 May 2026

Excellent product, Good price and speedy delivery

Customer recommends this product

Great product
Verified Purchase

By Lynn John on 19 May 2026

I've been using these for about 8 years and have always found them to be very affective

Customer recommends this product

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Q & A

Below are some recent questions we've received regarding Seresto Flea Collar For Dogs Over 8kg, including answers from our team.

17 July 2025 at 12:02am

I've ordered this for my daschund cross

Claire Williams

I've been told to order this from my dogs vet due to my dog Ernie having allergies with pollen which the vet said was brought on by the fleas he had. Ernie has very itchy hot skin so im hoping this collar will help keep the fleas away and kill any what do land on him

  • VioVet Staff

The Seresto Flea Collar for Dogs Over 8kg is a great choice, especially for dogs with sensitive skin or flea-related allergies. It provides long-lasting protection (up to 8 months) and works to repel and kill fleas and ticks before they can bite, which should definitely help reduce Ernie’s irritation and allergic reactions.
Please make sure the collar fits snugly — you should be able to fit two fingers between the collar and his neck — and remember to check the fit regularly, especially if he's still growing or losing weight.

24 January 2025 at 3:18pm

Sleeping

Wendy

Should the collar be kept on at night and is it safe to use if your dog sleeps in your bed?

  • VioVet Staff

To ensure your dog's safety and the effectiveness of the Seresto collar:

  • Keep the collar on your dog at all times, including during sleep.

  • Avoid allowing your dog to sleep in your bed, especially if you have children, to minimize exposure to the active ingredients.

  • If you or a family member have allergies to the collar's ingredients, avoid contact with the product.

By following these guidelines, you can help ensure the safety and well-being of both your dog and your family.

10 April 2023 at 1:38pm

Size of collar for large dog

Lynda Earley

  • VioVet customer since 2014
  • From: Lincolnshire, United Kingdom

It says the length of the collar is 70cm can they be cut to size? as not all dogs have the same size neck.

  • VioVet Staff

Yes, the excess material from the collar should be cut away. Full instructions on how to apply the collar can be found within the tin.

8 September 2022 at 9:05am

Suitable for large dog

Gail Longhurst

  • VioVet customer since 2012
  • From: Dorset, United Kingdom

Is the large suitable for my 44 kg German Shepherd Please. Bought one last year but can't remember if it was large or if there was possibly an XL size

  • VioVet Staff

Yes, this collar is suitable for a 44kg dog. It is appropriate for any dog over 8kg.

3 July 2022 at 2:25pm

Seresto collar

valerie singleton

Is this suitable for all dog sizes. Mine is approx 24 kg

  • VioVet Staff

Yes, this collar will automatically dose exactly what your pet needs dependant on size. It is suitable for any size dog, including your 24kg.

18 May 2022 at 9:02am

Pregnant bitch around other dogs in house with Seresto Collars

Karen

Hi, I have a multi-dog household, is it safe for my pregnant bitch to be lying with her housemates, I’ve taken her own collar off.
Thank you

  • VioVet Staff

The datasheet states the following:
Laboratory studies with either flumethrin or imidacloprid in rats and rabbits have not produced any effects on fertility or reproduction and showed no teratogenic or foetotoxic effects. However, the safety of the veterinary medicinal product has not been established in target animals during pregnancy and lactation and in the absence of available data, the product is therefore not recommended in pregnant and lactating bitches or queens.

This means it should not be used in pregnancy or lactation, so you are right to remove your pregnant bitch's collar. The collar will transfer ingredients by prolonged direct contact with the skin. If your dog will spend a few hours or more consistently in contact with a collar then the ingredients may transfer over. It is hard to say for definite whether your dog's sleeping next to each other will be an issue, it may be safest to separate them at night just to be safe.
If your pregnant bitch will not be in skin contact with a collar when lying with her housemates then this should not be an issue. The ingredients cannot transfer from the skin of a dog with a collar on it, it must be from skin contact with the collar itself.

17 January 2022 at 9:20am

Heart worm/leishmania

Rosalind

My dog comes with us to Portugal so does Seresto protect against heart worm and Leishmania

  • VioVet Staff

This product is licensed to protect against fleas and ticks. Leishmania is a tick-borne disease and so it will provide some protection against this by killing ticks. Heartworm is transferred by mosquito bites which Seresto does not specifically protect against. It is recommended to use a Scalibor Collar instead if you are wanting to protect against these two diseases specifically.
If you wish to treat for heartworm then you will need to contact your vet for advice on heartworm products.

20 June 2021 at 3:00pm

Serestco Flea Collar over 8kg

Bethan King

Will the over 8kg be ok to us on my Rottweiler?

Thanks

  • VioVet Staff

This depends on the weight of your Rottweiler, if over 8kg and 7 weeks of age then this collar is a great choice.

14 March 2021 at 10:47am

Seresto flea collar

Jennifer Pettman

How can I be sure your Seresto flea collars are genuine ones as there are a lot of fake ones being sold. Thanks

  • VioVet Staff

We stock all of our medications from licensed wholesalers, the same as your vet would receive supply from. We are one of the Veterinary Medicine Directorate Accredited Retails which means we undergo additional measures to ensure a high quality service is provided. You are right to be cautious as counterfit Seresto Collars have been in circulation but I can reassure you the ones we provide are genuine and made by Elanco themselves.
If you ever receive medication from a source you are unsure of then you can ring Elanco (the manufacturer) with the batch numbers/expiry date of the product. They can then verify whether the product was made by them or not.

3 January 2021 at 11:18am

Large Seresto tick collar , how long is the sell by date if I buy now.

Margaret

We usually put a large Seresto collar on our Labrador in February how long does the treatment last, she has it on all the time.

  • VioVet Staff

Seresto collars reaming active, releasing the medication to your dog's skin for up to 7 to 8 months. It is recommended a new collar is applied after the 7 to 8 month mark.

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