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Capstar
Capstar Flea Treatment for Dogs

Capstar Flea Treatment for Dogs

3.9· 6,000 ratings

Best price now

$40.95at PetPawsRxObserved at 5:09 AM

Compared across 4 stores. Prices are checked against each store and labelled with when.

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Our take on the Capstar Flea Treatment for Dogs

Capstar is an oral flea tablet for dogs that uses nitenpyram to kill adult fleas within about 30 minutes. It works for 24 hours, so it is a fast knockdown rather than a monthly preventive. This box has six 57 mg tablets for dogs over 25 lbs. The best new price is $40.95 at PetPawsRx as of November 4, 2026, with four stores selling it new.

Best forDogs over 25 lbs with an active flea infestationFast knockdown before a vet visit or bathPregnant or nursing dogs, per the labelShort-term control during a flea outbreak
Pros
  • Starts killing adult fleas within about 30 minutes
  • Oral tablet, so no topical residue or smell
  • Can be given as often as once a day if fleas return
  • Labeled for pregnant and nursing dogs
  • Six-tablet box covers repeated dosing
Cons
  • Kills adult fleas only, not eggs or larvae
  • No lasting protection beyond 24 hours
  • Not a substitute for a monthly preventive
  • Dose is fixed at 57 mg, so it is only for dogs over 25 lbs
  • Flea allergy dermatitis needs the whole lifecycle treated

Capstar Flea Treatment for Dogs prices at every store

  • PetPawsRxNew

    In stock

    $40.95Observed at 5:09 AM
    Visit store
  • WalmartNew

    In stock

    $42.97Observed at 5:11 AM
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  • Chewy.comNew

    In stock

    $42.97Observed at 5:11 AM
    Visit store
  • Revival Animal HealthNew

    In stock

    $44.99Observed at 5:11 AM
    Visit store

Also available at

  • BudgetVetCareCheck price at BudgetVetCare
  • Allivet Pet PharmacyCheck price at Allivet Pet Pharmacy
  • bomgaars.comCheck price at bomgaars.com
  • Capstar NextstarCheck price at Capstar Nextstar
  • Petco.comCheck price at Petco.com
  • PetSmartCheck price at PetSmart
  • Pet SupermarketCheck price at Pet Supermarket
  • Tractor Supply CompanyCheck price at Tractor Supply Company
  • Valley Vet SupplyCheck price at Valley Vet Supply
  • PetMedsCheck price at PetMeds
  • Chuck & Don'sCheck price at Chuck & Don's

Capstar Flea Treatment for Dogs price history

Lowest price we've seen: $26.35 on Nov 4 at BudgetVetCare. Tracked across 15 stores since Nov 4.

What reviewers say

Owners value how quickly Capstar drops fleas, often seeing dead fleas within hours. Some dogs vomit or salivate after the tablet, and many owners note it does not stop reinfestation on its own.

Pros
  • Fast visible flea kill
  • Easy to give in food
  • Useful for heavy infestations
Cons
  • Vomiting or drooling in some dogs
  • No residual protection
  • Needs repeat dosing

Specifications

Targeted Pests
Fleas
Active Ingredient
Nitenpyram
Administration Method
Oral
Life Stage Age
4 weeks of age and older
Treatment Frequency
As often as once a day (if re-infested)
Dosage Concentration
57 mg
Dosage Duration
24 hours
Formulation Type
Tablet
Formulation
Fast-acting
Lifecycle Targeted
Adults (fleas)
Animal Type
Dogs
Suitable For Health Status
Pregnant dogs, Nursing dogs
Treatment Type
Treatment
Supply Duration
30-Day
Supply Amount
6 tablets
Weight Range
Over 25 lbs
Contains
nitenpyram, neonicotinoids
Free Of
Dairy
Package Type
Box
Scent
Unflavored

Questions and answers

How fast does Capstar work?
It starts killing adult fleas within about 30 minutes and keeps working for 24 hours. It does not kill eggs or larvae, so pair it with a lifecycle product.
Can I give Capstar every day?
Yes, the label allows one tablet per day for dogs over 25 lbs if fleas return. Do not exceed one dose in 24 hours.
Is Capstar safe for pregnant or nursing dogs?
The label lists pregnant and nursing dogs as suitable. Check with your vet first, especially for dogs with health conditions.
What is the difference between Capstar and a monthly flea preventive?
Capstar is a 24-hour knockdown of adult fleas. Monthly products such as Bravecto or NexGard also prevent reinfestation and cover longer periods.
What size dog is this 57 mg tablet for?
It is for dogs over 25 lbs. Smaller dogs need the lower-strength tablet.
When is Capstar cheapest?
Prices vary by store; compare the four new listings. The best new price was $40.95 at PetPawsRx as of November 4, 2026.
Where is the Capstar Flea Treatment for Dogs cheapest?
At PetPawsRx, for $40.95, as of our latest check.
What do buyers say about the Capstar Flea Treatment for Dogs?
Rated 3.9 out of 5 from 6,000 ratings.
Where can I buy the Capstar Flea Treatment for Dogs?
15 stores we checked sell it, including Walmart, Chewy.com, Revival Animal Health, PetPawsRx, BudgetVetCare.