Black FridayDealsBuying guidesBrandsStoresTermsPrivacydeal.ai apps

© Deal.ai Inc.

Deal.ai › Sentry
Sentry
SENTRY Fiproguard Plus for Dogs

SENTRY Fiproguard Plus for Dogs

4.1· 235 ratings

Best price now

$30.98at eBayObserved at 5:33 AM

Prices are checked against each store and labelled with when.

Visit eBay

Ask our shopping agent

Enter to send, Shift+Enter for a new line

Our take on the SENTRY Fiproguard Plus for Dogs

Sentry Fiproguard Plus is a monthly spot-on flea and tick treatment for dogs 23–44 lbs. It pairs fipronil with (S)-methoprene, so it kills adult fleas and also stops flea eggs and larvae from developing. The formula is waterproof and labeled for dogs 8 weeks and older, including pregnant, breeding and lactating dogs. The best new price is $30.98 at eBay as of November 4, 2026, for a 3-month supply.

Best forOwners of medium dogs (23–44 lbs)Multi-pet homes fighting fleas and ticksDogs that swim or get bathed oftenBreeders and owners of pregnant or nursing dogs
Pros
  • Kills adult fleas plus eggs and larvae
  • Also targets ticks and chewing lice
  • Waterproof once dry
  • Labeled for dogs 8 weeks and older
  • 3-month supply covers a full season
Cons
  • Only for dogs in the 23–44 lb range
  • Not for cats — toxic to them
  • Monthly reapplication needed
  • Some dogs show irritation at the application site

SENTRY Fiproguard Plus for Dogs prices at every store

  • eBayNew

    Availability unknownSold by justjeffrey-2013

    $30.98Observed at 5:33 AM
    Visit store

Also available at

  • Chewy.comCheck price at Chewy.com
  • BimBimPetCheck price at BimBimPet
  • Lambert Vet SupplyCheck price at Lambert Vet Supply
  • PBS Animal HealthCheck price at PBS Animal Health
  • PetSupplies4Less.comCheck price at PetSupplies4Less.com
  • Southern States CooperativeCheck price at Southern States Cooperative
  • Valley Vet SupplyCheck price at Valley Vet Supply

SENTRY Fiproguard Plus for Dogs price history

Lowest price we've seen: $28.77 on Nov 4 at PBS Animal Health. Tracked across 8 stores since Nov 4.

What reviewers say

Owners rate it 4.1 out of 5 across 235 ratings. Many report fewer fleas and ticks after the first month, while some say it works slower or leaves an oily spot.

Pros
  • Noticeable drop in fleas and ticks
  • Easy to apply between the shoulder blades
  • Holds up through baths and rain
Cons
  • Slower knockdown than some rivals
  • Oily residue and odor at first
  • Occasional skin irritation at the spot

Specifications

Targeted Pests
Ticks, Chewing lice, Fleas, Ticks that may transmit Lyme disease
Active Ingredient
Fipronil
Administration Method
Spot-on
Life Stage Age
Adult, 8 Weeks+, 8 weeks of age and older
Treatment Frequency
Monthly (up to 30 days)
Dosage Concentration
Fipronil 9.8 %, (S)-Methoprene 8.8%
Formulation Type
Spot-on, Liquids
Formulation
Waterproof
Lifecycle Targeted
Fleas, Flea eggs, Flea larvae, Ticks
Animal Type
Dog
Suitable For Health Status
Pregnant animals, Breeding animals, Lactating animals
Treatment Type
Treatment
Supply Duration
3 month supply
Supply Amount
3.36 ounces
Weight Range
23-44 lbs
Breed Restrictions
Do not use on cats
Contains
fipronil, (s)-methoprene
Package Type
Pack

Questions and answers

Is Fiproguard Plus the same as Frontline Plus?
Both use fipronil plus (S)-methoprene and work the same way. Fiproguard Plus is the store-brand version and usually costs less.
How often do I apply it?
Apply once a month, up to every 30 days. Each pack covers 3 months for one dog.
Can I use it on my cat?
No. It is only for dogs and can be toxic to cats. Keep treated dogs away from cats until the product dries.
Does it survive swimming and baths?
Yes, the formula is waterproof once dry. Wait until the application site is dry before letting the dog swim or get bathed.
Is it safe for puppies and pregnant dogs?
It is labeled for dogs 8 weeks and older, including pregnant, breeding and lactating dogs. Check with your vet for puppies under 8 weeks.
When is the price lowest?
The best new price seen is $30.98 at eBay as of November 4, 2026. Multi-pack and seasonal sales tend to bring the per-dose cost down.
Where is the SENTRY Fiproguard Plus for Dogs cheapest?
At eBay, for $30.98, as of our latest check.
What do buyers say about the SENTRY Fiproguard Plus for Dogs?
Rated 4.1 out of 5 from 235 ratings.
Where can I buy the SENTRY Fiproguard Plus for Dogs?
8 stores we checked sell it, including eBay, Chewy.com, BimBimPet, Lambert Vet Supply, PBS Animal Health.

More from Sentry

  • S
    Sentry Active Noise Cancelling Headphones
    Sentry Active Noise Cancelling Headphones
  • S
    Sentry Hook or Buds True Wireless Earbuds BT899
    Sentry Hook or Buds True Wireless Earbuds BT899
  • S
    Sentry Fiproguard Flea & Tick
    Sentry Fiproguard Flea & Tick
All Sentry deals and products →