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Stronghold Spot On Large Dog 240mg (20.1-40kg)
Simple steps for pet prescriptions
  • 1Get a prescription from your vet
  • 2Place your order with Pet Drugs Online
  • 3Attach a prescription and tell us about your pet, read more
  • 4Our vets will double check your order
  • 5Your order is dispatched right away
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Stronghold Spot On Large Dog 240mg (20.1-40kg)

This item requires a vet's prescription

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30358 Reviews

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  • Vet price £36.74
  • Our price £17.88
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Estimated dispatch within 24 hours (subject to stock) See our delivery options

Prescription Info.
Service Reviews

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.

To check the most up to date information about this product, please read its Summary of Product Characteristics (SPC) on the Veterinary Medical Directorate’s (VMD) Product Information Database:

View summary of product characteristics (SPC)

We offer a range of delivery options:

Our standard delivery is free by Royal Mail 2nd Class (for lightweight items up to 2kg) - there are some exceptions and you can see these on our delivery page. These include refridgerated items, controlled prescription medication, heavy food items 2kg+ and aerosols which have to be sent via our Courier service.

We also offer delivery by Royal Mail 1st Class or via Next Working Day Courier for a small fee (for items in stock ordered before 12pm Monday to Thursday). Where available orders can be upgraded to Next Working Day pre-12pm or Saturday Delivery. Standard courier orders placed before 12pm on Fridays will be delivered the following Monday.

Orders under £20 have a £2.50 handling fee automatically added.

Food deliveries weighing 2kg and over ordered before 12pm (Monday to Thursday) will be delivered next working day by courier - Monday to Friday - excludes Saturday delivery. Orders placed on a Friday, Saturday and Sunday will be delivered on a Tuesday. Orders weighing over 6kg are sent free.*

*Please note that any other items ordered with food will be sent separately via Royal Mail 2nd Class by default. If you require non-food items on a faster service we offer the option to upgrade to Royal Mail 1st Class or Courier delivery of non-food items for an additional charge.

For more information, view our delivery page.

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.

Product reviews for prescription products are not allowed by the RCVS. But here is what our customers say about our service:

Service reviews have been compiled from 30358 customer reviews


Brilliant efficient service


First class service. Please and efficient staff when you need to contact by telephone. Cannot fault.


Very easy to use and products are a lot cheaper than vets . Delivery was quick!!


Excellent service...easy to use. Could have done with more solid packaging as my cats meds box was squashed but meds were fine. Quick delivery and very reliable and great value.


Excellent service, next day deliveries and normal deliveries all arrive when expected, great prices and easy to use website.


i would recommend to anyone ,excellent service. any queries or errors(i have made) are dealt with quickly .get a written prescription from your vet ,scan or post to pet drugs on line ,pay ,delivered next day. a lot cheaper than getting drugs from my vet. as long as i have my dog i will use them for his meds which he needs for life. dog is happy ,i am happy !


I regularly use pet drugs online and I have always received a first class service I would highly recommend the company. I also make an average saving of £10 per order on the special diet food for my dog.


I can totally rely on their service and delivery is always on time.


fast delivery. Quite easy to navigate.


Very happy with products,they both worked really well,only down side is that delivery is very expensive other wise great service and products

View all 30358 reviews