Capstar for dogs and cats
A pill that kills adult fleas fast. It works for about a day, so it is used for quick knockdown, not long-term prevention. [1]
Key facts
| Generic name | Nitenpyram |
|---|---|
| Common brand names | Capstar |
| Used in | Dogs & Cats |
| Type | Flea, tick & heartworm |
| Prescription? | Over the counter (ask your vet first) |
| Typical US price | Not listed (no reliable public source) |
What it's used for
A pill that kills adult fleas fast. It works for about a day, so it is used for quick knockdown, not long-term prevention. [1]
How it works
It is absorbed quickly and kills fleas that bite. [1]
Side effects and cautions
Common side effects: Rare. Itching (as fleas die), vomiting, diarrhea, low appetite or energy changes. [1]
Use with care: Not for pets under 2 pounds or 4 weeks old. [1]
Call your vet right away if your pet has trouble breathing, facial swelling, hives, collapse, or any side effect that is severe or getting worse.
What it costs
We don't list a price for this one because we couldn't find a reliable public source. Ask your vet or pharmacy for a quote; prices depend on your pet's size, the dose and where you fill it.
Capstar FAQ
What is Capstar used for in dogs and cats?
A pill that kills adult fleas fast. It works for about a day, so it is used for quick knockdown, not long-term prevention.
What are the side effects of Capstar?
Rare. Itching (as fleas die), vomiting, diarrhea, low appetite or energy changes.
Does Capstar need a prescription?
Many forms are sold without a prescription. Still, check with your vet first. Pet doses and safe products are not the same as for people.
How much Capstar should I give my pet?
Only your veterinarian can tell you. The right dose depends on your pet's weight, health and other medicines, so we don't list doses. Never give a pet a medicine prescribed for a person or another animal without asking your vet.
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This page is general information for pet owners, not veterinary advice. Talk to your vet about your own pet.