Nitenpyram
Nitenpyram is an oral insecticide used primarily in veterinary medicine to treat flea infestations in dogs and cats. It belongs to the neonicotinoid class of insecticides and works by targeting the nervous system of insects. The medication is known for its rapid onset of action against adult fleas.
Nitenpyram is an oral flea treatment for pets that quickly kills adult fleas by affecting their nervous system.
Key facts at a glance
- RxNorm
- 341379
- Generic
- Nitenpyram
- Class
- unclassified
- Brands
- Capaction, Capstar
- Availability
- rx
- Lactation
- unknown
- Routes
- oral
- Forms
- tablet
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Used to treat and control flea infestations in dogs and cats. It is particularly effective against adult fleas and is often used for rapid flea elimination or in combination with other flea control products for comprehensive treatment.
Nitenpyram is a neonicotinoid insecticide that binds to nicotinic acetylcholine receptors in the nervous system of insects. This causes overstimulation of nerve signals, leading to paralysis and death of the flea.
This medication is for veterinary use only in cats and dogs. It is generally well-tolerated but may cause mild side effects such as itching, hyperactivity, or lethargy in some animals. Consult a veterinarian before use, especially for pets with underlying health conditions.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy