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Capstar flea and tick medicine

Capstar (Nitenpyram)

Pet Size

Don't know your pet's weight?

If you can't get them on the scale, try this super simple method:

  1. Weigh yourself.
  2. Weigh yourself holding your pet.
  3. Subtract the two numbers to get their weight.

Too heavy to hold? Your vet will weigh them if you ask (or may already have it on file if you call).


No Prescription Required

  • Description

    Capstar is an oral flea killer medication for use with cats or dogs that works by introducing a drug that destroys the flea’s central nervous system after they bite the animal. It takes effect within 30 minutes and will generally kill all active fleas on the pet within 4 to 6 hours of their taking it. Both Capstar for cats and Capstar for dogs are very highly regarded by veterinarians treating flea allergy dermatitis. It is often combined with flea shampoos and flea combs to create a multi-step approach to eliminating fleas on dogs and cats.

    Buy Capstar flea tablets online from World Pet Express to get the best price on this good flea medication for dogs and cats.


    Capstar if for use with dogs and cats that are 4 weeks of age or older and weigh at least 2lbs.

    To administer Capstar, you can either feed it to your pet directly from your hand, or you also have the option of mixing into wet dog or cat food if they are hesitant to ingest it directly in their mouth.

    The recommended dosage guidelines are indicated on the packaging.


    The active ingredient in Capstar is Nitenpyram.


    Do not use with pets under 4 weeks of age or weighing less than 2lbs. For pet use only and keep out of reach of children. Only administer one tablet at a time. Be sure to follow the dosage and administration guidelines provided on the packaging.


    There are no know interaction risks between Capstar and other pet medications, Rx or otherwise. Capstar tablets are safe for pregnant or nursing cats or dogs.

    Side Effects

    Use of Capstar for dogs or Capstar for cats may cause mild itchiness (resulting from dying fleas) and stomach upset / discomfort in less common occurrences.

    Product Code : 8726