CONTRIBUTOR(S): Emma Chandley, Andrea Tarr,
Medication: Flumethrin
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Your cat has been prescribed flumethrin for the treatment and prevention of ectoparasites such as fleas and ticks. This medication is commonly used in collars also containing imidacloprid, which have a long-lasting effect.
ℹ️Key points:
- A continuously-worm collar is effective for up to 8 months against fleas and ticks.
- Provides repellent (anti-feeding) activity against ticks.
- Reduces the risk of transmission of diseases caused by certain ectoparasites.
- Safe for cats older than 10 weeks.
- Pets wearing the collar should not be allowed to sleep in the same bed as their owners, especially children.
- Wash hands with cold water after fitting the collar.
Name, Brand Names, Class, and Storage
Name
Flumethrin.Brand Name
Combination products such as the Seresto® collar.Class of Medication
Synthetic pyrethroid, ectoparasiticide.Storage
Store below 25°C77°F and keep away from children and pets when not in use.Why has my cat been prescribed flumethrin?
Your veterinarian has prescribed flumethrin for the treatment and prevention of flea and tick infestations. It is particularly useful for long-term protection against ectoparasites and may also reduce risks associated with certain parasite-borne diseases.
How is the medication given?
Flumethrin is typically applied in the form of a slow-release collar. The active ingredients are gradually released and spread across the skin and fur. The collar should be fitted snugly around your cat’s neck without being too tight - it should be possible to insert 2 fingers between the collar and the neck.
Are there any side effects or drug interactions?
Side Effects:
- Mild skin reactions, such as redness or itching.
- Rarely, application site reactions such as dermatitis, inflammation, eczema or lesions may occur.
How long will my cat need to use this medication?
Treatment duration depends on the product. For collars, efficacy may last up to 8 months.
How should I dispose of this medication if I don’t use it all?
Unused collars should be disposed of following local regulations for veterinary waste. Do not allow collars or remnants to enter watercourses as they can be dangerous for aquatic life.
What if my cat is unwell?
If your cat is unwell, consult your vet before continuing or restarting treatment with any products containing flumethrin.
What should I do if the medication is used on another pet or taken by a human?
Flumethrin collars are species-specific. In cases of accidental ingestion or inappropriate use by humans or other pets, seek immediate medical advice. The product may cause skin, eye and respiratory irritation in some people in very rare cases. Pets wearing the collar should not be allowed to sleep in the same bed as their owners, especially children. Wash hands with cold water after fitting the collar.
Will my cat need to be monitored while on flumethrin?
Routine checks for flea and tick activity are recommended. If signs of infestation persist, consult your veterinarian.