- Begins working in 30 minutes after treatment
- Safe for puppies and kitten 4 weeks of age or older, 2 pound or heavier
- Safe for pregnant or nursing dogs
- Over 90% of fleas die within 4 hours for dogs and 6 hours for cats
- No cleaning unlike some liquid-drop flea control products
Product Description
The fleas on the pet are in the adult stage. An adult, female flea, living on a pet, can lay up to 2,000 eggs in her lifetime. With CAPSTAR (nitenpyram), almost all adult fleas will die within 4 hours for dogs and 6 hour… More >>
Novartis Capstar Flea Treatment Green Tabs for Dogs and Cats 25 Pounds and Over, 6 Tablets



Capstar is safe for use in cats and dogs that are sick. It is the Best medicine to stop an infestation– you will see the fleas actually die before your eyes (not an exaggeration) put your dog or cat on a white towel and give him/her capstar and just watch what happens. UNLIKE other products, you can use Capstar in very young animals, even sick puppies and kittens. It is NOT long-lasting, but you can safely use it up to once per day. I used to work at a veterinary hospital and they gave Capstar and Program to animals that were infested with fleas, but sick, since they are safer alternatives to Advantage and Frontline (read the insert for Advantage, it actually says that it’s not safe for sick animals OR kittens).
My cat is allergic to Frontline and Advantage, which are topical pesticides that get ingested when the cat grooms itself. He would get a lump on his neck wherever I would apply it, so I stopped using topical insecticide for flea control. I really like Program, and I use it in conjuction with Capstar if he picks up live fleas.
Even if your cat has a flea infestation, just give them Capstar and then use Program. Capstar which works faster than anything else, and kills all the fleas on your cat in 5-30 minutes, but is not long-lasting.
The people that give this product a bad review need to realize that if you cat is infested, you need to do something about the active fleas and the eggs. Program is an ovacide that prevents fleas from reproducing so it won’t stop an infestation, but it’s so much safer for your cat. Capstar works instantly to kill all biting fleas, but it won’t last. So if you use both, you can control fleas completely without using a topical pesticide that is dangerous to your cat when it grooms itself.
As a side note, if your cat (or dog) ingest the fleas while they are grooming or licking themselves, sometimes they will get tapeworms, which look like little grains of rice near their anus and bedding. My cat gets tapeworms about every 2 years or so. You can purchase tapeworm tabs without a prescription now in the US. The medicine is called Praziquantel and is available online for about $15. So I have all three at my house and I’m all set.
I’ll never go back to using topical flea products.
Rating: 5 / 5
I love this product!! I give the dog her pill (I use the smaller dose for my cats and Italian Greyhound as needed) and within an hour, the fleas are falling off, dead!! Far far better than any powder or shampoo I have ever tried, Better than any of the collars as well. Highly recommended.
Rating: 5 / 5
I do a lot of animal rescue work. Capstar works within hours to kill all fleas. The fleas literally jump off and die. You might want to keep the animal contained in one room like a bathroom for a few hours because you will be cleaning up dead fleas off the floor. Yes, it is that effective. For animals with a nasty flea infestation it brings fast relief. This product only kills adult fleas, it doesn’t kill eggs so you must follow up with a topical product like Frontline or Revolution. However if your animal is allergic to topicals this product is safe to give as often as every day. If your poor pet is suffering with fleas use this product first to kill all the fleas immediately then follow up with Frontline or Revolution. The seller, Entirely Pets, was fantastic. Received product within days.
Rating: 5 / 5
I used this out of sheer desperation. Nothing else helped. I treated the cats and the dog, bombed the house and started Program. Rarely see a flea. I tried the topicals, baths, powders and everything else that was suggested. I did check with the vet, and don’t treat my old cat. Treating everyone else seems to do it.
Rating: 5 / 5
My dog will run and hide if the spray bottle of flea killer comes out. No more worrying if you have covered all areas of your animal, getting chemicals on your skin and breathing that stuff in. Capstar works quickly and dead fleas just drop off!
Rating: 5 / 5