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PetArmor
PETARMOR Flea & Tick Treatment for Large Dogs, 45 to 88 Pounds, 3 Monthly Applications

PETARMOR Flea & Tick Treatment for Large Dogs, 45 to 88 Pounds, 3 Monthly Applications

Best price now

$13.99at PetArmorChecked 1 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $13.99 at PetArmor (checked Nov 11, 2026).
  • Checked at 2 stores.

Our take on the PETARMOR Flea & Tick Treatment for Large Dogs, 45 to 88 Pounds, 3 Monthly Applications

PetArmor is a topical flea and tick treatment for dogs 45 to 88 pounds, sold as three monthly applicators. It uses fipronil plus (S)-methoprene, the same active ingredients as Frontline Plus, so it kills adult fleas, flea eggs and larvae, and ticks, and it is waterproof and odorless. It suits owners who want a lower-cost generic version of a familiar spot-on product. The trade-offs are a smaller weight band per tube, no tick species list as broad as some vet-channel brands, and a greasy spot for a day or two after application.

Best forLarge dogs in the 45 to 88 pound rangeOwners who want a fipronil and methoprene spot-on at lower costMulti-dog homes needing a three-month supplyFlea prevention in dogs that swim or get bathed
Pros
  • Same actives as Frontline Plus: fipronil and (S)-methoprene
  • Kills adult fleas plus eggs and larvae to break the life cycle
  • Waterproof and odorless once dry
  • Three monthly doses per box
  • Easy to apply between the shoulder blades
Cons
  • Weight band is narrow; dogs outside 45 to 88 pounds need another size
  • Ticks are not all equally covered; check local tick species
  • Leaves a wet, greasy spot at the application site for a day or so
  • Some dogs itch or get temporary irritation at the site
  • Not for puppies under 8 weeks or sick, weakened dogs

PETARMOR Flea & Tick Treatment for Large Dogs, 45 to 88 Pounds, 3 Monthly Applications prices at every store

  • PetArmorNew

    Availability unknown

    $13.99Free shippingChecked 1 h ago
    Visit PetArmor
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $26.14Checked 1 h ago
    Visit Amazon

Also available at

  • McCoy's Building SupplyCheck price at McCoy's Building Supply

PETARMOR Flea & Tick Treatment for Large Dogs, 45 to 88 Pounds, 3 Monthly Applications price history

Lowest price we've seen: $13.99 on Nov 11 at PetArmor. Tracked across 3 stores since Nov 11.

What reviewers say

Owners generally find PetArmor works like the brand-name spot-on for fleas at a lower cost, and many report fewer fleas within a day or two. Complaints center on skin irritation at the application site, a greasy residue, and inconsistent tick control in heavy-infestation areas.

What people mention
  • Flea controlPraisedOwners report fleas gone or sharply reduced within a day or two of application.
  • Skin irritationCriticisedSome dogs itch, redden or lose a little hair at the application site.
  • ResidueMixedThe liquid leaves a greasy spot that takes hours to dry, though it is odorless.
  • Tick protectionMixedSome owners find ticks still attach in high-exposure areas, while others see none.
  • WaterproofingPraisedOwners say it holds up through baths and swimming without losing effect.

About the PETARMOR Flea & Tick Treatment for Large Dogs, 45 to 88 Pounds, 3 Monthly Applications

This is a topical flea and tick treatment for healthy adult dogs. The solution contains fipronil and (S)-methoprene, with (S)-methoprene at 8.80% concentration.

It targets ticks and chewing lice. It acts on adult fleas, flea eggs and flea larvae, and it helps prevent flea reinfestations. The formula is fast-acting and waterproof. Each application gives 30 days (four weeks) of protection, and the treatment is applied monthly.

The pack has 3 applicators, which is a 3 month supply. The solution is odorless.

Animal
Dogs
Life stage
Adult, healthy dogs
Active ingredients
Fipronil, (S)-methoprene
Concentration
8.80% (S)-methoprene
Targets
Fleas (eggs, larvae, adults), ticks, chewing lice
Application
Topical solution, monthly
Protection
30 days per application
Supply
3 applicators, 3 month supply
Scent
Odorless

Specifications

Targeted Pests
Ticks, Chewing lice
Active Ingredient
Fipronil, (S)-methoprene
Administration Method
Topical
Life Stage Age
Adult
Treatment Frequency
Monthly
Dosage Concentration
8.80% ((S)-Methoprene)
Dosage Duration
Four weeks, 30-day protection

Questions and answers

How does PetArmor compare with Frontline Plus?
It uses the same two active ingredients, fipronil and (S)-methoprene, in a similar topical formula. Frontline Plus covers a broader listed tick spectrum and has more published data; PetArmor is the lower-cost generic option.
How often do I apply it?
One applicator every 30 days. Each box holds three applicators, so it covers about three months for one dog.
Can I bathe my dog after applying it?
Yes. The formula is waterproof once dry, usually within a few hours. Avoid bathing in the first day or two so the product spreads through the skin oils.
Is it safe for puppies?
It is labeled for dogs 8 weeks and older that are healthy. Do not use it on puppies younger than 8 weeks, on sick or weakened dogs, or on cats.
What is in the box?
Three single-dose topical applicators for dogs 45 to 88 pounds, plus the package insert. No collar or oral tablet is included.
Which dogs should not use it?
Dogs outside the 45 to 88 pound range, puppies under 8 weeks, pregnant or nursing dogs without vet advice, and any dog with a known sensitivity to fipronil.
Where is the PETARMOR Flea & Tick Treatment for Large Dogs, 45 to 88 Pounds, 3 Monthly Applications cheapest?
At PetArmor, for $13.99, as of our latest check.
Where can I buy the PETARMOR Flea & Tick Treatment for Large Dogs, 45 to 88 Pounds, 3 Monthly Applications?
3 stores we checked sell it, including PetArmor, Amazon, McCoy's Building Supply.

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All PetArmor deals and products →
Formulation Type
Topical Solution
Formulation
Waterproof, Fast-acting, Long-lasting
Lifecycle Targeted
Flea eggs, Adult fleas, Flea larvae
Animal Type
Dogs
Suitable For Health Status
Healthy dogs
Treatment Type
Treatment, Prevention
Supply Duration
3 month supply
Supply Amount
3 applicators
Weight Range
23-44 lbs
Contains
Fipronil, (S)-methoprene
Free Of
Odor
Package Type
Box
Scent
Odorless