ZAP! For Cats and Dogs 2-25 Lbs

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Zap! (nitenpyram)

Zap! is an oral capsule for dogs, puppies, cats and kittens 4 weeks of age and older and 2 pounds of body weight or greater.

Active Ingredients

Zap! capsules contain 11.4 or 57.0 mg of nitenpyram, which belongs to the chemical class of neonicotinoids. Nitenpyram kills adult fleas.

Directions

A single dose of Zap! should kill the adult fleas on your pet. If your pet gets re-infested with fleas, you can safely give another dose as often as once per day. To give Zap! capsules, place the pill directly in your pet’s mouth or open and mix with food. If you are not sure that your pet swallowed the pill, it is safe to give a second pill. Treat all infested pets in the household. Fleas can reproduce on untreated pets and allow infestations to persist.

Other Information

Zap! begins working within 15-30 minutes. In studies, nitenpyram achieved greater than 90% effectiveness against adult fleas on dogs within 4 hours and cats within 6 hours. Zap! is safe for pregnant or nursing dogs and cats.

When using this product, you may notice that your dog or cat will start scratching itself as fleas begin to die. The scratching behavior is temporary and is a reaction to the fleas, not the drug. In very rare cases in cats, this may present as transient signs of hyperactivity, panting, vocalization and excessive grooming.

Zap! kills adult fleas that cause flea allergy dermatitis (FAD). Also, fleas transmit other parasites, including tapeworms. The control of flea infestations is important to your pet’s health and also reduces the problems associated with these parasites.

Zap! may be used together with other products, including heartworm preventives, corticosteroids, antibiotics, vaccines, de-worming medications, shampoos and other flea products.

Zap! does not affect fleas in the pet’s environment. You may need to treat more than one time because immature fleas in and around the home will continue to develop into adults that can reinfest your pet.

In addition to killing adult fleas with Zap!, you can treat your pet with an insect development inhibitor like lufenuron to prevent and control flea populations.

NADA #141-175, Approved by FDA.

Exp 7-27

42 Reviews Hide Reviews Show Reviews

  • 4
    Zap for 2 to 25 pound dogs and cats

    Posted by Cynthia Eldridge on Aug 14th 2025

    This seems to be doing a very good job of keeping the fleas under control with all of my pets and is the most reasonable way to do it

  • 5
    Zap! flea pills

    Posted by Diana Nolen on Aug 4th 2025

    Wonderful stuff! Every cat or dog owner should keep these on hand. They work great. They work quickly. They are safe and inexpensive too! You can't go wrong! Get some extra for your friend's or neighbor's pets. They will love you for it.

  • 5
    Zap for dogs and cats

    Posted by Laura on Jul 28th 2025

    Been using for several years on my dog and inside/outside cats works better than anything I ever got from a vet love this product and will continue being a customer

  • 5
    Zap for small. Dogs

    Posted by Cliff luebke on Jul 19th 2025

    Finally found something that actually works! Customer service is awesome! Made a mistake on my last order and they took great care of me. Above and beyond honestly. I highly recommend this flea treatment.

  • 5
    Best out there

    Posted by Holly on Jul 7th 2025

    I have been a huge fan of Zap for years. Personally when I had a flea outbreak and professionally at the cat adoption center I volunteer with. We have never had a flea problem in part to Zap. We use it on every admission that comes in. I recommend Zap to anyone and everyone. Quick shipping, customer service has been wonderful, safety and quality are phenomenal.

  • 5
    Zap

    Posted by Robin Kirtley on Jul 7th 2025

    Love the product

  • 5
    Zap

    Posted by Holly C on Jul 4th 2025

    This is the only product I trust with my animals. I also got my daughter using this on her cats and she says the same thing. I trust this 100%.

  • 5
    Flea removal

    Posted by Janalee Ewald on May 22nd 2025

    Excellent product. Works well. I have been purchasing Zap for several years now. Very reasonable price.

  • 5
    Flea medicine

    Posted by Donna on Apr 22nd 2025

    Great Product!

  • 5
    Zap for dogs and cats

    Posted by Laura on Feb 26th 2025

    Been using this product for few years got 4 inside cats and many outside cats used every product OTC and from vets nothing was effective or budget friendly this product is both and I have had great results I am a highly satisfied customer and highly recommend trying it you Will love this product too customer service is fast And amazing as well

  • 5
    Zap for dogs and cats

    Posted by Laura on Feb 26th 2025

    Been using this product for few years got 4 inside cats and many outside cats used every product OTC and from vets nothing was effective or budget friendly this product is both and I have had great results I am a highly satisfied customer and highly recommend trying it you Will love this product too

  • 5
    Fantastic

    Posted by John on Feb 3rd 2025

    You can't get this product in this kind of quantity or price anywhere else. This makes managing fleas for my cat so easy and affordable.