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PetArmor CapAction is an oral flea tablet for dogs and puppies 4 weeks and older weighing at least 2 lbs. Each tablet contains 11.4 mg nitenpyram and starts killing adult fleas within 30 minutes, with over 90% effectiveness within 6 hours. It is a fast knockdown product, not a monthly preventive, so it works best alongside a longer-acting flea control. Owners like the speed and the option to hide it in food; the main complaints are that it does nothing for ticks or eggs and that fleas can return if no preventive follows.
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Lowest price we've seen: $21.99 on Nov 4 at eBay; highest $25.19 on Nov 11. Tracked across 21 stores since Nov 4.
Ratings are middling. Owners who use it for a quick knockdown report fleas dying within hours, while others complain it is short-acting and that fleas come back without a monthly preventive.
PetArmor CapAction Flea Tabs are oral tablets that treat fleas on dogs and puppies 4 weeks of age or older. Dogs must weigh at least 2 lbs. Each tablet contains 11.4 mg of nitenpyram.
A single dose begins killing adult fleas on dogs in 30 minutes. It is more than 90% effective against adult fleas within 6 hours. The tablet can be given directly in the mouth or hidden in food.
Choose the size by dog weight: 2-25 lbs or 25+ lbs.






