Best long-duration OTC collar optionFlea & tickSeresto
Seresto Flea & Tick Collar for Dogs Over 18 lbs
Collar listed for up to 8 months of flea and tick protection for dogs over 18 lbs
Flea & Tick Prevention
Long-duration collar for large dogs
TevraPet Activate II Flea & Tick Collar (Large Dogs)
TevraPet
Budget tier: $$
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Collar listed for up to 12 months of flea and tick protection for large dogs
Our take
TevraPet's Activate II collar is listed for up to 12 months of flea and tick protection for large dogs, with deltamethrin and pyriproxyfen as the listed active ingredients. Deltamethrin is toxic to cats, so keep it away from cats in the home. The EPA has received incident reports for pesticide pet collars; ask your vet. This is shopping guidance, not veterinary advice: confirm fit and follow the label.
Who it's for: Large dogs in cat-free homes whose vet is fine with a collar preventive.
Skip if: You have cats that groom or sleep with the dog, or a sick or pregnant pet; talk to your vet.
Pros
- Listed for up to 12 months
- Active ingredients named on the listing (deltamethrin, pyriproxyfen)
- Waterproof, per the listing
Cons
- The EPA has received incident reports for pesticide pet collars; ask your vet
- Deltamethrin is toxic to cats: not for homes where cats contact the dog
Specs
- Form
- OTC flea/tick collar
- Size focus
- Large dogs (verify label)
- Framing
- Retail prevention gear — not vet advice
Compare nearby picks
Alternatives with different tradeoffs — not clones of the same pitch.
Best long-duration OTC collar optionFlea & tick
Best OTC collar option sized for catsFlea & tickSeresto
Seresto Flea & Tick Collar for Cats
Cat-labeled collar listed for up to 8 months of flea and tick protection
TevraPet Activate II Flea & Tick Collar (Large Dogs)