Capstar® (nitenpyram)

Capstar® (nitenpyram)

Capstar Productlist Image

Product Type

Capstar® is an oral tablet that contains a fast-acting adulticide for the control of adult fleas on dogs and cats.


Nitenpyram, the active ingredient in Capstar, belongs to the chemical class of neonicotinoids which bind and inhibit insect (flea) specific nicotinic acetylcholine receptors.

Nitenpyram interferes with normal nerve transmission and leads to the death of the insect (flea).

Nitenpyram does not inhibit acetylcholinesterase.


Capstar rapidly kills adult fleas on dogs and cats.

Capstar also treats flea allergy dermatitis in dogs and cats. Regular treatment reduces the number of flea bites experienced by the animal. Capstar is widely used by dermatologists for this purpose.

Capstar has a rapid, prolonged action – killing fleas 30 minutes after administration, and for 24 hours thereafter.

Dosage and Administration

Treatment can begin on any day when fleas are seen on the animal, and repeated on any subsequent day fleas are seen.

Dog or cat

Capstar dose


1 x small (11.4mg) tablet,
on any day when fleas are seen on the animal


1 x large (57mg) tablet,
on any day when fleas are seen on the animal


1 x large (57mg) + 1 x small (11.4mg) tablet
for every 11kg more than 57kg,
on any day when fleas are seen on the animal

Capstar should be given orally, with or without food, on any day when fleas are seen on the animal. No more than one treatment should be given per day.

If a continuous flea infestation is observed after using Capstar, the attending veterinarian should be consulted for further advice.

Treatment recommendations for flea allergy dermatitis:
Once daily in dogs or cats.

Formulations and Packaging:
There are two formulations available:
Capstar for cats and small dogs (11.4mg nitenpyram)
Capstar for large dogs (57mg nitenpyram).

Both tablet sizes are available in cardboard boxes with one aluminium blister containing six tablets.


Capstar is safe to use in puppies and kittens from 4 weeks of age, and in pregnant bitches and queens.

Flea Control

Flea control is always best discussed with your veterinary surgeon who will recommend the best product or products for your pet.


Sentinel® Spectrum Tasty Chews
Monthly Tasty Chew for the prevention and control of fleas, heartworm and intestinal worms in dogs.

The product information provided in this site is intended for Australian residents only. Please note that not all products listed within this site may be available in all countries. Also, prescribing information and indications for products may differ from country to country, so please consult your local veterinarian for local prescribing and any other information you may be interested in.