Kill Fleas on Cats
Adult cat fleas have permanently remain on their host. Once a host is acquired, the fleas will not leave unless they die or are dislodged.
Topical flea drops for cats typically contain both an adulticide and an insect growth regulator (IGR). The adulticide (fipronil, imidacloprid or dinotefuran) will kill adult fleas on the cat. The IGR (pyriproxyfen or methoprene) prevents female fleas from laying viable eggs and stops the development of eggs and larvae.
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| Product Name | Bayer Advantage II | Vectra Cats & Kittens | Merial Frontline Plus | Sentry Fiproguard Plus |
| Price | $40 | $35 | $35 | $35 |
| Size | 4 tubes | 3 tubes | 3 tubes | 3 tubes |
| Application | Squeeze-On | Squeeze-On | Squeeze-On | Squeeze-On |
| Use On | Cats | Cats | Cats | Cats |
| Cat Size | 5 to 9 lbs more sizes available |
2 to 9 lbs more sizes available |
over 1.5 lbs more sizes available |
over 1.5 lbs more sizes available |
| Cat Age | over 8 weeks | over 8 weeks | over 8 weeks | over 8 weeks |
| Kills | Eggs Larvae Adults |
Eggs Larvae Adults |
Eggs Larvae Adults |
Eggs Larvae Adults |
| Active Ingredients | Pyriproxyfen Imidacloprid |
Pyriproxyfen Dinotefuran |
(S)-Methoprene Fipronil |
(S)-Methoprene Fipronil |
| A.I. Concentration | 0.46% 9.10% |
3.00% 22.00% |
11.8% 9.8% |
11.8% 9.8% |
| Dose Duration | 1 month | 1 months | 1 months | 1 months |
| Total Duration | 4 month | 3 months | 3 months | 3 months |
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| FleaScore |  |
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| Reviews |
- Prices are approximations based off of Amazon.com prices at the time of publishing.
- FleaScores are based off of product details (price, size, active ingredients, etc), as well as reviews aggregated from 3rd party sources.
- (S)-methoprene and pyriproxyfen are insect growth regulators and prevent immature flea stages from reaching adulthood.
- Fipronil is a broad-spectrum insecticide that affects an insect’s central nervous system.
- Imidacloprid and dinotefuran are insect neurotoxins, belonging to the neonicotinoids class of compounds similar to nicotine.
