Capstar Flea Tablets for Dogs & Cats [2-25 lbs] (6 count)

MSRP: $53.26
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Capstar Flea Treatment Tablets are used to kill fleas on dogs and cats, which begins working within 30 minutes. Capstar will kill more than 90% of adult fleas within 4 hours on dogs and 6 hours on cats, and pets may temporarily scratch as a result of the fleas dying.

Directions & Dosage

Capstar is approved for use in dogs and cats over 4 weeks of age and over 2 pounds of body weight. It is available in packages for dogs and cats 2-25 pounds and dogs 25.1-125 pounds. Choose the correct strength and give 1 tablet as the dose. For pets over 125 pounds give the correct combination of tablets.


The active ingredient of CAPSTAR, nitenpyram, is a novel molecule belonging to the chemical class of neonicotinoid compounds, which bind with and inhibit insect specific nicotinic acetylcholine receptors; however, it does not inhibit acetylcholinesterase. It interferes with normal nerve transmission and leads to the death of the fleas.

Nitenpyram is very rapidly and almost completely absorbed from the gastrointestinal tract of cats and dogs; feeding does not influence absorption. On average, the maximum blood concentration is reached 1 hour (range: 15 to 90 minutes) after administration in both species, and the elimination half-life is about 3 hours in dogs and 7.5 hours in cats. More than 90% of the active ingredient is eliminated in the urine within one day in dogs and two days in cats, mainly as unchanged nitenpyram.

Nitenpyram starts working rapidly after dosing and kills >98% of the fleas on the pet within 6 hours; all adult fleas are eliminated 24 hours after a single treatment.

  • Capstar Flea Tablets for Dogs & Cats [2-25 lbs] (6 count)