Oral Flea Medication for Dogs

Pills to Kill Fleas on Dogs

Adult fleas are permanent parasites of their host. They rely on blood meals to survive and reproduce. As a result, they will remain on the host unless they die or are dislodged through grooming.

Oral flea medications typically contain the active ingredient nitenpyram, an insect neurotoxin. Adult fleas will begin to die 30 minutes after a dog consumes a pill. 90% of the corporeal flea population on the dog will die within 4 hours.

capstar oral flea meds bluecapstar oral flea meds greengeneric nitenpyram flea meds bluegeneric nitenpyram flea meds green
Product NameNovartis Capstar BlueNovartis Capstar GreenGeneric BlueGeneric Green
Size6 tablets6 tablets12 capsules10 capsules
Use OnDogsDogsDogsDogs
Dog Ageover 4 weeksover 4 weeksover 4 weeksover 4 weeks
Dog Size2 to 25 lbsover 25 lbs2 to 25 lbsover 25 lbs
KillsAdult FleasAdult FleasAdult FleasAdult Fleas
Active IngredientsNitenpyramNitenpyramNitenpyramNitenpyram
A.I. Concentration11.4 mg57 mg12 mg57 mg
Dose Scheduleup to twice weeklyup to twice weeklyup to twice weeklyup to twice weekly
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on Amazon.com
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on Amazon.com
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on Amazon.com
read reviews
on Amazon.com
  • 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.
  • Nitenpyram is an insect neurotoxin, belonging to the neonicotinoids class of compounds similar to nicotine.

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