icon
TOLL FREE 1-800-214-4505 Mon-Fri 7 AM - 7 PM PST / Sat 7 AM - 4 PM PST
icon
You have no products in your cart
icon
OR

Register Creating an account is easy! You'll be able to checkout faster, manage auto order, track order status and more!

Capstar Cats 2 - 25 lbs

4.6/5 (103 Reviews)
Select Pack:
Frequency:
  • Information
  • Directions
  • Safety
  • Benefits
  • Capstar FAQ
Information
Capstar
  • Pet
    Cat
  • Treatment For
    Flea
  • Health Benefits
    Internal Parasites Protection
  • Product Type
    Tablet
  • Parasites Covered
    Fleas
  • Protects For
    One Day
  • Recommended For
    kittens older than 4 weeks and above
  • Key Ingredients
    Nitenpyram

What is Capstar for Cats?

Capstar for Cats is a quick-action treatment for your feline companions. It starts killing fleas in as little as 30 minutes. This oral flea control tablet has been shown to provide more than 90% effectiveness against adult fleas on cats within 6 hours. It is ideal for feline parents seeking quick relief from fleas.

Capstar flea treatment is suitable for kittens as young as four weeks, allowing you to protect your pets from an early age. It can be combined with long-term flea treatments for overall flea control. When used as directed, Capstar is safe for most cats, including pregnant and nursing mothers.

Suitable For

Capstar for Cats is suitable for use in kittens and cats from 4 weeks of age with at least 2 lbs of body weight.

Capstar for Cats Indications

  • Kills adult fleas on cats before they have a chance to lay eggs.
  • Helps treat flea infestations on cats.
  • Helps reduce the risk of flea allergy dermatitis (FAD) by killing fleas.

Ingredients: Nitenpyram

Directions
How to Use Capstar for Cats

  • Capstar can be administered directly by placing it in your cat's mouth.
  • Alternatively, it can be given by hiding in the cat's food. Observe your cat closely and ensure the entire dose is consumed. If the complete dose is not taken, administer another full dose.
  • A single tablet should kill the adult fleas on cats. If the cat is re-infested, you can give another tablet, not exceeding one dose per day.

The table below shows the available pack of Capstar for cats with their dosage strength.

Capstar for Cats Dosing Table:

Cat Size Cat Weight Pack Color Nitenpyram Doses Administered
Kittens & Cats 2.0 – 25.0 lbs Pink 11.4 mg One
Safety

For Cats:

Capstar flea treatment should not be used in kittens under 4 weeks of age or less than 2 lbs of body weight. When used as indicated, it is considered safe for pregnant or nursing cats. This oral tablet may be used with other flea products, heartworm preventives, dewormers, vaccines, antibiotics, corticosteroids and shampoos.

For Humans:

Capstar is not for use in humans. You should keep this treatment out of reach of children to avoid accidental ingestion.

Are there Any Specific Storage Instructions for Capstar for Cats?

Store these tablets between 59° and 77°F (15°-25°C), at controlled room temperature.

Benefits

What are the Key Benefits of Capstar for Cats?

  • Fast-action formula: Starts working within 30 minutes after administering to cats.
  • Quick relief: Shown to kill more than 90% of fleas within 6 hours.
  • Hassle-free administration: Oral tablet can be given directly or with food.
  • Safe for most cats: Indicated for cats 4 weeks of age or older, including pregnant or nursing cats.
  • Compatibility: Can be used together with long-term and other commonly used feline treatments.
Capstar FAQ

What does Capstar do for my cat?

Capstar is a fast-acting flea treatment. It has been shown to kill fleas before they have a chance to lay eggs. The oral formula helps treat flea infestations on cats and reduce the risk of flea allergy dermatitis by killing fleas.

How do Capstar tablets work?

Capstar flea tablets contain the active ingredient nitenpyram. After administration, the ingredient is absorbed shortly into the cat's bloodstream. The formula eliminates fleas by disrupting their nervous system within hours of administration.

How effective is this flea treatment on cats?

These oral flea tablets have been shown to provide quick relief from fleas. The treatment begins killing adult fleas within 30 minutes. Studies show that Capstar achieves more than 90% flea efficacy within about six hours of administration.

What should I do if my cat refuses to take the tablet directly?

When your cat does not take the pill directly, you may hide it in the cat's food. You should watch your cat closely to ensure the feline consumes the complete pill. If you are not sure that the cat ingested the full dose, give another tablet.

Is it safe to give Capstar to a pregnant cat?

The product label suggests that Capstar can be used in pregnant and nursing cats when used as directed.

Can I give Capstar to my cat with its regular worm treatment?

According to the product label, these flea tablets may be used with commonly used feline treatments, including dewormers, heartworm preventives, long-term flea treatments, antibiotics, corticosteroids and shampoos. For your cat's safety, consult a veterinarian before using it together with other treatments.

Capstar Reviews

4.6
Average Rating 4.6 Based on 103 Reviews
  • 5 star
     59
  • 4 star
     44
  • 3 star
     0
  • 2 star
     0
  • 1 star
     0
57%
Recommend
57% of Reviewers Recommend This Product
Write A Review
4.6/5
Average Rating 4.6
Based on 103 Reviews
Handy Flea Solution Aug 16, 2026
Convenient tablet option to keep available for flea problems.
Was this review helpful? 0 0
Quick Flea Solution Aug 09, 2026
Handy option when quick flea control is needed.
Was this review helpful? 0 0
Rapid Flea Elimination Aug 02, 2026
Works within hours to kill fleas. Perfect for emergencies.
Was this review helpful? 0 1
Fast-Acting Flea Killer Jul 26, 2026
Kills fleas incredibly fast. Perfect for immediate relief situations.
Was this review helpful? 1 0
Instant Relief Jul 19, 2026
Works incredibly fast on fleas.
Was this review helpful? 1 0
Instant Action Jul 12, 2026
Fleas gone within hours.
Was this review helpful? 1 0
Instant Relief Jul 05, 2026
Starts killing fleas within hours.
Was this review helpful? 0 1
Instant Relief Jun 28, 2026
Works within hours for flea infestations.
Was this review helpful? 0 1
Instant Relief Jun 21, 2026
Kills fleas very quickly.
Was this review helpful? 0 0
Instant Action Jun 14, 2026
Quickly eliminates fleas when needed.
Was this review helpful? 0 0
Instant Kill Jun 07, 2026
Works quickly to eliminate fleas.
Was this review helpful? 0 0
Instant Kill May 31, 2026
Works fast for immediate flea removal.
Was this review helpful? 0 0
X

Site Preferences

Your Shipping Destination
Display Currency
*Payments are processed in USD.
icon