Capstar for Cats & Dogs (6 pack)
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Capstar is a fast-acting oral flea treatment for dogs and cats that starts killing adult fleas within 30 minutes. Ideal for flea outbreaks and immediate flea relief.
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Capstar is one of the fastest-acting flea treatments available for dogs and cats, making it a popular choice when immediate flea relief is needed. Unlike monthly flea treatments that focus on ongoing prevention, Capstar is designed to rapidly kill adult fleas already present on your pet.
Want to compare against other brands? Browse our entire range of dog flea treatments.
Why Choose Capstar Flea Treatment?
Containing the active ingredient nitenpyram, Capstar starts killing fleas within 30 minutes of administration and can eliminate the majority of adult fleas within hours. This makes it particularly useful during active flea infestations, when pets are uncomfortable and need rapid relief from flea bites and irritation.
Because Capstar only targets adult fleas currently on your pet, it is often used alongside longer-term flea prevention products such as Bravecto, NexGard Spectra, Advocate or Frontline. Together, these treatments help address both immediate flea problems and ongoing flea prevention.
Capstar is suitable for both dogs and cats and can be used in puppies and kittens from 4 weeks of age and at least 1kg bodyweight.
When Should Capstar Be Used?
Active Flea Infestations
When your pet already has visible fleas and needs rapid relief.
Newly Adopted Pets
A useful option when bringing home a rescue pet or newly acquired puppy or kitten with fleas.
Before Starting Long-Term Prevention
Can quickly reduce flea numbers while waiting for a monthly flea treatment to reach full effectiveness.
Multi-Pet Households
Can help reduce adult flea populations quickly when managing a household flea outbreak.
How to Use Capstar
Dosage
Administer the correct Capstar tablet according to your pet's body weight. Always follow the dosage instructions provided on the packaging.
Administration
- Give the tablet directly by mouth or with a small amount of food.
- Ensure the full tablet is consumed.
- Fleas will begin dying shortly after treatment.
Frequency
Capstar can be administered once daily if required. Always follow label directions and consult your veterinarian if repeated treatment is necessary.
Active Ingredient
Nitenpyram
A fast-acting insecticide that rapidly kills adult fleas on dogs and cats.
Starts Working Within 30 Minutes
Capstar begins killing adult fleas within 30 minutes of administration, providing rapid relief from flea infestations.
Ideal for Flea Outbreaks
Perfect for situations where immediate flea control is needed rather than waiting for monthly preventatives to take effect.
Suitable for Dogs and Cats
Can be used in both dogs and cats, making it a convenient option for multi-pet households.
Safe for Puppies and Kittens
Suitable for puppies and kittens from 4 weeks of age and at least 1kg bodyweight.
Easy Oral Tablet
No messy spot-on applications or flea shampoos. Simply administer as a tablet.
Can Be Used Alongside Long-Term Prevention
Often used together with monthly flea treatments as part of a comprehensive flea control strategy.
No Prescription Required
Available over the counter in New Zealand for convenient access when fast flea relief is needed.
Q: How quickly does Capstar start working?
A: Capstar begins killing adult fleas within 30 minutes of administration, making it one of the fastest-acting flea treatments available for dogs and cats.
Q: Does Capstar kill flea eggs?
A: No. Capstar kills adult fleas on your pet but does not kill flea eggs or flea larvae in the environment.
Q: Does Capstar provide ongoing flea protection?
A: No. Capstar is designed for immediate flea relief and does not provide long-term protection. Most pet owners use Capstar alongside a monthly flea prevention product.
Q: Can Capstar be used with Bravecto, NexGard Spectra or Advocate?
A: Yes. Capstar is commonly used alongside long-term flea prevention products when rapid flea control is required. If you are unsure about combining treatments, consult your veterinarian.
Q: Can puppies and kittens use Capstar?
A: Yes. Capstar can be used in puppies and kittens from 4 weeks of age and at least 1kg bodyweight.
Q: Why am I still seeing fleas after using Capstar?
A: Capstar kills adult fleas currently on your pet but does not kill flea eggs or larvae in your home environment. Newly emerging fleas may continue to appear until the flea life cycle is fully controlled.
Q: Is Capstar suitable for cats and dogs?
A: Yes. Capstar can be used in both dogs and cats, provided the correct tablet strength is selected according to bodyweight.
Q: Do I need a prescription to buy Capstar?
A: No. Capstar is available over the counter in New Zealand and does not require a prescription.
Q: Is Capstar better than monthly flea treatments?
A: Capstar serves a different purpose. It provides rapid flea relief during active infestations, while products such as Bravecto, NexGard Spectra and Advocate are designed for ongoing flea prevention. Many pet owners use Capstar as part of a broader flea management plan.
Q: How often can Capstar be given?
A: Capstar can be administered once daily if required. Always follow label directions and consult your veterinarian if ongoing flea problems persist.