Seresto Collar for Medium & Large Dogs (Over 8kg)

Seresto for Medium and Large Dogs provides long-lasting, vet-recommended protection against fleas and ticks. Designed for dogs over 8kg, the collar offers up to 8 months of continuous defense with a single application. Unlike topical treatments or oral medications, Seresto’s innovative polymer matrix technology slowly releases two active ingredients to repel and kill parasites before they bite. Water-resistant, odourless, and hassle-free — Seresto makes parasite control simple and effective.

Active Ingredients

• Imidacloprid (10%) – Kills fleas and flea larvae through contact, without requiring a bite.
• Flumethrin (4.5%) – Repels and kills ticks, including paralysis ticks, reducing the risk of tick-borne diseases.

Key Features

• 8 months of continuous protection against fleas and ticks
• Repels ticks and kills fleas before they bite
• Odourless and water-resistant
• Non-greasy and easy to use – no monthly treatments needed
• Ideal for dogs over 8kg
• Safe for use in puppies from 7 weeks of age

Pack Size

• 1 x adjustable collar (70cm length)

Suitable For

• Dogs over 8kg body weight
• Puppies from 7 weeks of age (once they reach sufficient neck size)

Prescription Required

• No – Seresto is available over the counter

Frequently Asked Questions (FAQs)

1. What is the Seresto Collar for Medium & Large Dogs used for?
   Seresto is designed to protect dogs over 8kg from fleas and ticks for up to 8 months, including paralysis ticks, brown dog ticks, and bush ticks.
2. How does the Seresto collar work?
   The collar continuously releases low doses of imidacloprid and flumethrin onto the dog’s skin and coat, killing parasites on contact.
3. When should I start using Seresto on my puppy?
   You can use Seresto from 7 weeks of age, provided the puppy is over 8kg and the collar fits properly.
4. How fast does Seresto begin to work?
   Seresto starts killing fleas within 24 hours and repels ticks within 48 hours of application.
5. Can my dog get wet while wearing Seresto?
   Yes, Seresto is water-resistant. It remains effective after occasional swimming or bathing. Frequent water exposure may reduce the duration of protection.
6. Does Seresto kill or repel ticks?
   Both. Seresto repels ticks before they attach and kills any that manage to come into contact with the dog’s coat.
7. Can Seresto be used with a standard dog collar?
   Yes, your dog can wear a regular collar along with Seresto as long as the Seresto collar is fitted snugly around the neck.
8. Is Seresto safe for dogs with allergies?
   Seresto is generally well tolerated. If irritation or a skin reaction occurs, remove the collar and consult your vet.
9. Can I remove and reapply the collar?
   Yes, you can remove it temporarily (e.g. for grooming), but store it in a sealed container to retain efficacy.
10. Do I need a prescription to buy Seresto?
    No, Seresto is an over-the-counter product and does not require a vet prescription.
11. How do I know if the Seresto collar fits correctly?
    You should be able to fit two fingers between the collar and your dog’s neck. Trim any excess length for comfort.
12. What should I do if my dog chews the Seresto collar?
    Small amounts are unlikely to cause harm, but ingestion should be treated seriously. Contact your vet immediately if ingestion occurs.
13. Can Seresto be used alongside other parasite treatments?
    Yes, but always consult your vet before combining flea/tick preventatives with other medications or treatments.
14. Does Seresto protect against flea eggs and larvae?
    Yes, by killing fleas before they lay eggs, Seresto helps break the flea life cycle and prevents environmental infestation.
15. How should I dispose of a used Seresto collar?
    Wrap the used collar in paper and place it in household garbage. Do not burn or compost.
16. Is Seresto effective year-round?
    Yes, Seresto provides protection for 8 continuous months, making it ideal for year-round flea and tick prevention.
17. Can Seresto be used on pregnant or nursing dogs?
    The safety of Seresto in pregnant or lactating dogs has not been fully established. Consult your vet before use.
18. Will Seresto protect my dog from tick paralysis?
    Yes, Seresto repels and kills paralysis ticks before they can attach and cause harm. It is an important tool in paralysis tick prevention.
19. Where can I buy Seresto for Medium & Large Dogs in Australia?
    You can purchase genuine Seresto collars from Discount Pet Meds — trusted for fast delivery, great prices, and authentic Australian-registered pet products.
20. Why choose Seresto over spot-on or oral flea treatments?
    Seresto offers mess-free, long-lasting protection without monthly doses. It kills and repels fleas and ticks without relying on bites or messy applications.

Order the Seresto Collar for Medium & Large Dogs from Discount Pet Meds today for long-lasting, veterinarian-trusted flea and tick prevention. Enjoy fast shipping and authentic Australian stock with no prescription required.

How much does shipping cost?

Your delivery cost starts from $6.95. This depends on the weight of your order, delivery address and delivery method (express vs standard). The shipping cost calculator will display the total cost for delivery at the checkout. We use live quote system powered by Australia Post; this guarantees you pay the lowest shipping fee. 

How do I qualify for Free Delivery?

Discount Pet Meds offers Free Standard Shipping on orders over $149 Australia wide for parcels up to 500g. Orders over $149 and over 500g will receive a discount of $6.95 on total shipping cost which will is automatically applied during checkout.

Which shipping should I select?

Discount Pet Meds uses Australia Post as their courier partner, with two shipping options to select from at checkout:

  Express Post        the fastest choice 

  Standard Post     the most economical  (normally 2 days behind express post)

Please note: Australia Post has a weight limit of 22kg per parcel. If your order weighs over 22Kgs we recommend placing multiple orders or contact us to arrange for a courier

How long will it take to process my order?

Discount Pet Meds guarantee same day dispatch if your order is in-stock and has been placed before 11am weekday. In- stock items ordered after 11am, will be dispatched next business day. 

Compounding Meds: Please allow extra 2 business days (eye drops: 5 business days)

How long will it take to receive my parcel?

In addition to processing and dispatch time at the warehouse (24-48 hrs), Delivery time will depend on where you are, in relation to our warehouse as we are based in Carlingford, Sydney, NSW.

The following are estimated delivery times once your order has been fulfilled and left our warehouse. These are only estimates and are dependent on mail services in your area. 

     Standard Post     

Local/Sydney area: 1-2 business days

New South Wales: 2-3 business days

Brisbane: 2-3 business days

Melbourne: 2-3 business days

Adelaide: 3-5 business days

Perth: 3-5 business days

Queensland: 3-7 business days

Victoria: 3-7 business days

South Australia: 5-10 business days

Tasmania: 5-10 business days

Western Australia: 5-10 business days

Northern Territory: 5-10 business days

     Express Post     

Sydney area: next day delivery

Other Metro areas and Major cities: 1-3 business days

Rural areas: please allow up to 5 business days.

Do I need to stay home to receive my parcel?

All parcels will be delivered to the provided address and will require a signature on receipt, It is recommended to provide a work address for delivery if no one is home during business hours. If no one home, a card will be left detailing the nearest Australia Post outlet where the parcel can be collected during normal business hours.

Authority to Leave (ATL): Although we do not recommend leaving orders unattended when not home to accept delivery, you may request this service with any delivery. You may do this by placing a brief note, such as Please leave order if not home', in the order comments section found on our checkout page.

Australia Post (Safe Drop): Tracking notifications now provide you the possibility of Safe Drop where the order will be left in the Safe Drop location specified unless, in the judgement of the carrier, it is exposed to passers-by or the weather, in which the parcel will be carded for a Post Office collection

What if my order got delayed, lost, stolen or damaged?

Shipping insurance will allow you to be compensated in case of lost, damaged, or delayed delivery. If shipping insurance is not chosen, we will not be able to offer any further assistance if your order is lost or subsequently goes missing after it has been deemed delivered by the carrier. The associated risk in leaving parcels unattended is borne by the customer.

Refrigerated items: when you purchace a cold chain product, you accept the rare chance that goods will not be delivered in an ideal condition and that no compensation will be offered to replace spoilt goods, even if insurance cover is chosen.

How do you ship refrigerated items? 

Fridge items are sent out Monday, Tuesday and Wednesday only, by    Express Post   in foam eskies containing ice Blocks, to ensure items remain cold on delivery. Please refer to the below link to see if you are within the Australia Post Express Network:

Express Post delivery network

How do I track my order? 

With email and SMS tracking notifications, you will get peace of mind to track and choose delivery options. You will be given a tracking number and the date your parcel is expected to be delivered, as well as the chance to choose how and where you like to receive it.

What if I want to Pick up my order?

Pick up is available from our store. Please select “Pickup option" at the checkout. We will contact you once your order has been assembled and is ready for collection. 

Pick up address: 4/500 North Rocks Road Carlingford, Sydney NSW, 2118.

Can I refund medication after collection? 

We can dispose your unwanted medication, but we can’t refund it. Once a prescription item leaves our pharmacy, by law they cannot be resold. As such, refunds are not possible.