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Vet prescription required in checkout

Stronghold Spot On Large Dog 240mg (20.1-40kg)

You save 54%
Vet prescription required in checkout
You save 54%

Stronghold Spot On Large Dog 240mg (20.1-40kg)

Stronghold Spot On is a spot on treatment for fleas, roundworms, hookworms, heartworm, biting lice, sarcoptic mange and ear mites.
Standard Retail Price £40.36
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  • Delivery Info
  • Service Reviews (90444)

Stronghold Spot On 240mg

Stronghold Spot On 240mg is a spot on treatment for fleas, roundworms, hookworms, heartworm, biting lice, sarcoptic mange and ear mites in dogs and cats.

It is supplied in packs of 3 or 6 single use pipettes.

Suitable for dogs weighing 20.1 - 40 kg.

This is a prescription item and will be sent once a valid prescription is received.


If you see the "prescription required" sign next to an item you’d like to order, it means the item can only be issued with a prescription. While you can add these items to your shopping cart and pay for them along with other non-prescription products, we can’t dispatch them until we’ve received a prescription.

Delivery Info

Please view our Delivery and Coronavirus pages for the latest updates.

Light (usually non-food) orders under £29 are charged £2.99 postage. Heavy (typically food) orders under £29 are charged £4.49 postage.

For Light items (under 2kg) our standard method is Royal Mail 2nd Class Tracked(there are a few exceptions, so if in doubt check our Delivery page).

To get it faster you can upgrade Light items to Royal Mail 1st Class Tracked or a Guaranteed Courier service, Saturday Courier or even before 12 noon services. There's a small fee, but if you're in a hurry they are worth considering. To ensure you get your courier order as quickly as possible, please place your order before 12 Noon Monday to Thursday. There is no standard Saturday courier delivery.

Heavy items weighing 2kg and more are sent via courier. Heavy items ordered after 12 Noon Friday, or anytime Saturday and Sunday will be processed on a normal working day.

Please note that if you are purchasing a mix of Light and Heavy items at the same time, these will be sent separately. The Heavy items being sent by Courier, the Light items by Royal Mail 2nd Class Tracked.

Refrigerated items are only dispatched by courier Monday to Thursday to ensure the item remains cool.

All exceptions to these guidelines are noted in the product description.

For more information, view our Delivery page.

Service Reviews (90444)
Independent Customer Feedback

Stronghold Spot On Large Dog 240mg (20.1-40kg)

4.9/ 5
(90444 customer reviews)
  1. 5
    "I have now ordered twice from you and am sure I will again im not really very good on the internet but I found it quite easy to order what I wanted the service and delivery was brilliant many thanks"
    Review by Brenda Sparkes / (Posted on
  2. 5
    "Great speedy service and unbeatable prices!
    Highly recommended!"
    Review by / (Posted on
  3. 5
    "Amazing so much cheaper than vets!"
    Review by / (Posted on
  4. 5
    "Very helpful on the phone when trying to order. Delivery is very prompt."
    Review by Lynn Powell / (Posted on
  5. 5
    "Very easy to order and efficient delivery. Good price too"
    Review by Jenny Ellis / (Posted on
  6. 5
    "Excellent service. Easy to order, swift delivery."
    Review by Samuel White / (Posted on
  7. 5
    "Simple to use and to attach photo of prescription. All went smoothly and prescription delivered in about 3 days. Will definitely use again as it’s so much cheaper than the vets even with their prescription charge."
    Review by / (Posted on
  8. 5
    "User friendly website easy to order excellent delivery service with very good prices"
    Review by yvonne maguire / (Posted on
  9. 5
    "Easy to navigate website with an excellent range of products.

    My order was delivered very quickly."
    Review by / (Posted on
  10. 5
    "Great service, great price"
    Review by Louise Moses / (Posted on
View all 90444 customer reviews

Vet prescription required in checkout

  1. Get a prescription from your vet
  2. Place your order with us
  3. Add a prescription and tell us about your pet.
  4. Our vets will double check your order & your order is dispatched right away
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