An anti-flea product in the form of a tablet to be administered orally which rapidly kills all adult fleas living on animals once they have taken a blood meal.

It is as safe for adult cats and dogs as for younger ones of at least 4 weeks of age, gestating females and reproducing males. There is no contraindication known for using Capstar®.

It has been demonstrated that Capstar® kills > 98% of fleas living on an animal in less than 6 hours and that 100% of these are eliminated 24 hours after a single administration.

Name of the molecule: Nitenpyran.


Used to rapidly kill adult fleas living on cats, dogs, kittens and puppies of at least 4 weeks of age.

Action mode

The Nitenpyran kills fleas by interfering with the transmission of their neurological influx.


The product may be administered directly in the mouth of the animal or mixed with food. Administer orally a minimum of 1mg of nitenpyran per kg of weight or the number of tablets indicated below in function with the ideal body weight of the animal:

Animal weighing between 1 and 11 kg: 1 tablet of 11.4 mg per day until no more fleas are found on the animal*;

Animal weighing between 11.1 and 57 Kg: 1 tablet of 57 mg per day until no more fleas are found on the animal*;

Animal weighing 57 kg: administer the appropriate combination of tablets.


It is important to treat all animals cohabitating with the flea infested animal or animals. Since immature fleas continue to develop in the environment around infected animals, for several weeks following the administration of Capstar®, several treatments of Capstar® or even a combination of different anti-flea products may be necessary to completely eradicate the infestation of fleas.


* Not being able to find living fleas in the fur of the animal does not necessarily mean that there are no more. In the presence of a limited number of fleas, they may be hard to see.

Do not administer to puppies and kittens under 4 weeks of age. Keep out of the reach of children and small animals. In case of accidental ingestion, consult a doctor. Keep in a dry place at a temperature that does not exceed 25°C.


Elanco (Novartis)


Packs of 6 and 60 tablets of 11.4 mg and 57 mg.