
Frequently asked questions
What does the Seresto Collar for Dogs Over 18 lbs protect against?
It kills fleas and paralysis ticks on contact, without the need for pests to bite your dog. It provides protection against fleas and paralysis ticks for up to 8 months and controls brown dog ticks for 4 months.
What size dog is this Seresto collar for?
This red Seresto collar is designed for dogs weighing over 18 lbs (over 8 kg). Smaller dogs and puppies under 18 lbs need the blue Seresto collar.
How long does a Seresto collar last?
Up to 8 months of protection against fleas and paralysis ticks, and 4 months of control against brown dog ticks.
How do I fit a Seresto collar on my dog?
Unroll the collar and remove any plastic connectors on the inside. Place it around your dog's neck, thread the loose end through the two loops, and adjust so you can fit two fingers between the collar and the neck. Trim the excess, leaving about 2 cm (just under 1 inch) beyond the second loop.
Can my dog swim or have a bath with the Seresto collar on?
Yes. The collar is water-resistant, so your dog can swim and bathe without removing it.
What are the active ingredients in Seresto?
Seresto contains imidacloprid, which kills fleas on contact, and flumethrin, which repels and kills paralysis ticks. The collar is odorless.
Can I use the large Seresto collar on a puppy?
This collar is for dogs over 18 lbs. For puppies or small dogs under 18 lbs, choose the blue Seresto collar, and check the minimum age on the pack label or ask your vet.
Can I put a dog Seresto collar on my cat?
Only use this collar on dogs. Never use dog products on cats; there is a separate Seresto collar for cats and kittens.