Spend £35.00 and get FREE standard delivery
Stronghold Plus spot-on solution is used to treat mixed infestations in cats caused by ticks, ear mites, fleas and other parasites that can be found on the fur or skin of cats and/or worms that live inside the body, such as roundworm, hookworm and heartworm.
This product requires a valid prescription from your vet to be provided at checkout. More info
This product will be dispatched by our P2U partner. More info
Stronghold Plus Spot-On is a dual-action parasite treatment for cats, offering protection against a wide range of common pests. It combines two active ingredients, selamectin and sarolaner for powerful defence against external and internal parasites, including fleas, ticks, mites, roundworms, hookworms, and ear mites.
This easy-to-use spot-on formula is applied once a month at the base of the neck and starts working quickly to kill fleas and ticks while treating and preventing intestinal worms.
Key Features:
Kills fleas fast and prevents further infestations
Effective against ticks, including Ixodes and Rhipicephalus species
Treats roundworms and hookworms, reducing risk to pets and humans
Protects against ear mites and biting lice
Helps prevent heartworm disease (not endemic to the UK, but vital for travel)
Single monthly treatment - easy to apply, no stress for your cat
Dosage Options:
Choose the correct pipette based on your cat’s weight:
Small Cats (1.25-2.5kg) - 15mg/2.5mg
Medium Cats (2.6-5kg) - 45mg/7.5mg
Large Cats (5.1-10kg) - 60mg/10mg
For cats over 10kg, your vet may advise combining pipettes.
Prescription Requirement:
Stronghold Plus is a POM-V medication, which means a valid veterinary prescription is required before we can dispatch your order.
Upload your prescription during checkout or email it to us after placing your order. If you need help obtaining a prescription, our team is happy to advise.
Directions for Use:
Remove one pipette from the pack.
Part the fur at the base of your cat’s neck, in front of the shoulders.
Apply the full contents directly onto the skin.
Do not bathe your cat for at least 2 hours after application.
Reapply every 4 weeks or as advised by your vet.
At The PharmPet Co, we only stock trusted, vet-approved treatments from authorised UK suppliers. Your cat’s health and safety are our top priority and we offer fast, free UK delivery on all prescription medicines.
Legal Category: POM-V
How to order prescription medication
Certain products are classified as Prescription Only Medicines. For these products we require a legally valid veterinary prescription prior to dispensing and dispatching.
You can do this in three easy steps:
1. Request a prescription from your vet.
2. Add you prescription product(s) to your basket
3. Upload* or send your prescription to us as part of the checkout process.
* For some medication (eg Controlled Drugs) we need to be in receipt of the original valid prescription prior to dispatch, and so we will require you to post the original prescription to us. The website will inform you if this is the case.
How can I send my prescription electronically to you?
You can upload your prescription via the website as part of the checkout process or, if preferred you can email it to us at [email protected]
When emailing your prescription to us please write your order number at the top of the prescription to help us match it against your account.
Please note that for some medication (eg Controlled Drugs) we need to be in receipt of the original valid prescription prior to dispatch, and so we will require you to post the original prescription to us. The website will inform you if this is the case.
Where should I send my original prescription to?
Where we require (or you choose to send) an original prescription by post, please write your order number at the top of the prescription and send it to:
Pharmacy2U (The PharmPet Co)
Unit 3 Mountpark Bardon
Robson Way
Ellistown
Coalville
LE67 1GQ
Stronghold Plus protects cats against fleas, ticks, lice, ear mites, roundworms, hookworms and helps prevent heartworm disease.
Yes, as long as your kitten is at least 8 weeks old and weighs over 1.25kg. Always follow veterinary advice.
One pipette should be applied every 30 days to maintain continuous protection.
Yes, this is a prescription-only medicine. You’ll need to provide a valid prescription from your vet before we can send your order.
Select the strength based on your cat’s weight. If your cat is over 10kg, speak to your vet about combining pipettes.
Please see a summary of our delivery terms and charges below, if you require more information please refer to our Delivery & Returns page which can be found here.
When will my order be dispatched?
We aim to dispatch orders within 1 to 2 working days (Monday to Friday, excluding public holidays).
There may be times when your product is dispatched from one of our P2U partners, and this may extend to 3 working days.
Once your order is dispatched, you will receive a dispatch confirmation email from us with an order number.
In the event of an item being out of stock, we will contact you with the expected delivery time.
When will I receive my order?
Orders placed with Royal Mail Tracked 48 will aim to be delivered within 3 – 5 days of dispatch.
Orders placed with Royal Mail Tracked 24 will aim to be delivered within 1 – 2 days of dispatch.
Orders placed with Courier Delivery (Signed for) will aim to be delivered the next working day after dispatch.
Orders dispatched from one of our P2U partners will aim to be delivered within 3 days of dispatch.
How much does delivery cost?
We offer free delivery for orders over £35 to mainland UK*
All other orders are subject to the following delivery charges:
UK Mainland Royal Mail Tracked 48 (up to 2kg) and orders dispatched from one of our P2U partners:
Under £35 spend: £2.99
Over £35 spend: Free
UK Mainland Royal Mail Tracked 24 (up to 2kg):
Under £35 spend: £3.99
Over £35 spend: £3.99
UK Mainland (excluding highlands**) Courier Delivery (Signature required):
Under £35 Spend: £7.99
Over £35 Spend: £7.99
Refrigerated Lines: UK Mainland (excluding Highland, Northern Ireland and the Channel Islands***) Courier Delivery (Signature required): £9.99
It is important that you are available on the day to sign for and receive the medication. If you are not available to receive the delivery, please contact us to discuss your options. Due to the storage requirements of these products we will not be able to leave these orders in a safe place or with a neighbour.
Currently we are unable to do Tracked 24 or express deliveries on our Nutrition range (food & treats).
*Some products can only be delivered via courier e.g. orders over 2kg, fridge lines, high risk medication and controlled drugs. For these lines there is a chargeable courier fee and a signature will be required on delivery.
**For any orders that require a courier delivery to the UK Highlands an additional charge will be included during the checkout process.
***We regret that we are unable to deliver refrigerated products to the UK Highlands, Northern Ireland and the Channel Islands.
Additional information
For medication orders that can be posted through your letterbox (e.g. non signed for orders) you must ensure that there will be no children or animals who could have access to the posted medication. The PharmPet Co accepts no liability in the event of another person(s) or animal(s) residing at or visiting the property gaining access to the posted medication.
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Company Number: 3802593
VAT Number: 734 3754 27
Pharmacy2U Ltd trading as The PharmPet Co
Unit 3, Mountpark Bardon, Robson Way, Ellistown, Coalville, LE67 1GQ