Free delivery over £39 Get it free and fast to your door
Saving you up to 76% on pet care Low cost medications & veterinary food
Genuine UK pet medicine Fully accredited online Vet Pharmacy
Excellent ● 13,414 Reviews
Vet prescription required in checkout

NexGard For Extra Large Dogs 136mg (>25kg)

You save 56%
Vet prescription required in checkout
You save 56%

NexGard For Extra Large Dogs 136mg (>25kg)

NexGard chewable tablets for dogs are used in the treatment and prevention of fleas and ticks.
Standard Retail Price £44.46
Fast delivery See Options
In stock
  • Details
  • Instructions
  • Delivery Info
  • Service Reviews (3380)

Nexgard Chewable Tablets for dogs is designed for the treatment of fleas and ticks in large dogs weighing between 25-50kg. These tablets can also be used to help treat Flea Allergy Dermatisis (FAD). Each circular tablet contains 136.0mg of Afoxolaner which works by blocking GABA receptors and paralysing, and eventually killing, fleas and ticks. Parasites do need to take a blood meal from the dog to become exposed to the active ingredient as it is systemic (enters the bloodstream). Afoxolaner usually takes no longer than 8 hours from attachment to effect fleas and ticks will be killed within 48 hours of attachment. Each monthly treatment of Nexgard kills fleas for at least 5 weeks and kills ticks for at least one month.

Nexgard tablets are beef flavoured to aid with palatability, and can be given with or without food. Dogs will often readily accept the tablet as a treat.

Do not use Nexgard in puppies under 8 weeks of age or in dogs less than 25kg in weight. Do not give to pregnant or lactating bitches or those intended for breeding as the safety of the product under those conditions has not been established. 


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.

For orders over £39 postage is free. For orders under £39 we charge £2.99.

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

To get it faster you can upgrade Light items to 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. If ordered before noon Monday to Thursday, Heavy items will be delivered next working day. Heavy items ordered after 12 Noon Friday, or anytime Saturday and Sunday will be processed as soon as possible on normal working days.

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

For more information, view our Delivery page.

Service Reviews (3380)
Independent Customer Feedback

NexGard For Extra Large Dogs 136mg (>25kg)

4.9/ 5
(3380 customer reviews)
  1. 5
    "Fantastic service from start to finish."
    Review by / (Posted on
  2. 5
    "Worked well."
    Review by Craig Marr / (Posted on
  3. 5
    "Prompt service
    . highly recommend"
    Review by Colleen Mahoney / (Posted on
  4. 5
    "I always buy my dog's medications from here because they make it so easy to order The customer service is excellent, delivery is fast and the cost is a fraction of the vet prices!"
    Review by Christine Connolly / (Posted on
  5. 5
    "Great service always received from Pet Prescription. Super quick delivery and we save money buying our dogs meds from PP. Highly recommend"
    Review by Jayne Grant / (Posted on
  6. 5
    "Excellent service."
    Review by Clive Charlton / (Posted on
  7. 4
    "Efficient and reliable but we get scam post office texts with every order."
    Review by / (Posted on
  8. 5
    "Fast Delivery And Easy Website To Use."
    Review by Gary Humphries / (Posted on
  9. 5
    "Great service, pity you do not deliver to Republic of Ireland."
    Review by Barbara Broderick / (Posted on
  10. 5
    "Excellent service, very fast delivery and price wise, perfect."
    Review by Patricia Webb / (Posted on
View all 3380 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
Learn more